CN217951519U

CN217951519U - PP silence drain pipe

Info

Publication number: CN217951519U
Application number: CN202123420809.4U
Authority: CN
Inventors: 韩延旺; 邱桥平; 汪磊
Original assignee: Rifeng New Material Co ltd; Rifeng Enterprise Foshan Co Ltd; Rifeng Enterprise Group Co Ltd; Rifeng Technology Co Ltd
Current assignee: Rifeng New Material Co ltd; Rifeng Enterprise Foshan Co Ltd; Rifeng Enterprise Group Co Ltd; Rifeng Technology Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-12-02
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to the technical field of pipes, and discloses a PP (polypropylene) silent drain pipe, which comprises a pipe body; the inner wall surface of the pipe body is provided with a plurality of spiral ribs which extend along the pipe body and spiral in the same direction; a plurality of hollow cavities are formed in the side wall of the pipe body and are arranged at intervals in the circumferential direction around the axis of the pipe body. When the hollow fluid column is used, the spiral ribs can play a role in guiding, so that fluid entering the tube body flows along the spiral direction to form the hollow fluid column; at this time, as the friction force between the fluid and the inner wall of the pipe body is reduced, the collision between the fluid and the inner wall of the pipe body is reduced and weakened, and the collision between the fluid and the fluid is reduced and weakened, so that the noise generated by the PP mute drain pipe is reduced; in addition, a plurality of hollow cavities arranged on the side wall of the pipe body can play a good sound insulation effect, and noise emitted from the inside of the pipe body and noise passing through the pipe body can be well separated.

Description

PP silence drain pipe

Technical Field

The utility model relates to a tubular product technical field especially relates to a PP silence drain pipe.

Background

The PP mute drain pipe is a high-temperature resistant pipe, and is usually used in middle and high-rise buildings because the noise is low when the PP mute drain pipe is used for draining water.

Then, compared with a PVC pipe which is low in manufacturing cost, convenient to install and maintain and high in noise during drainage, the conventional PP silent drain pipe is good in high-temperature resistance effect, but the sound insulation effect of the PP silent drain pipe is generally poor, and in the prior art, a plurality of layers of silent pipes are generally coated outside the PP silent drain pipe, so that the process is complex, the cost is high, and the weather resistance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: the PP mute drain pipe is simple in process, low in cost and good in sound insulation effect.

In order to achieve the purpose, the utility model provides a PP mute drain pipe, which comprises a pipe body; a plurality of spiral ribs which extend along the pipe body and spiral in the same direction are arranged on the inner wall surface of the pipe body; the side wall of the pipe body is provided with a plurality of hollow cavities which are arranged at intervals in the circumferential direction around the axis of the pipe body; the hollow cavities are also distributed along the extending direction of the pipe body; in the extending direction of the pipe body, two adjacent hollow cavities are staggered.

Further, in the circumferential direction of the pipe body, a plurality of the spiral ribs are arranged at equal intervals, and a plurality of the hollow cavities are arranged at equal intervals.

Further, the central angle of the circular arc between two adjacent spiral ribs is 45 degrees or 60 degrees or 90 degrees.

Further, on the cross section of the pipe body, the spiral ribs are respectively triangular with vertex angles far away from the inner wall surface of the pipe body.

Furthermore, an anti-UV layer is co-extruded on the outer wall surface of the pipe body.

Further, the UV resistant layer is filled with UV master batches.

Further, the UV resistant layer is polypropylene.

The embodiment of the utility model provides a PP silence drain pipe compares with prior art, and its beneficial effect lies in:

when the PP mute drain pipe provided by the embodiment of the utility model is used, the plurality of spiral ribs can play a role in guiding, so that fluid entering the pipe body flows along the spiral direction to form a hollow fluid column; at this time, since the friction force between the fluid and the inner wall of the pipe body is reduced, the resistance of the inner wall of the pipe body to the fluid is reduced, the flow rate of the fluid is increased, the collision between the fluid and the inner wall of the pipe body is reduced and weakened, and the collision between the fluid and the fluid is reduced and weakened, thereby reducing the noise generated by the PP silent drain pipe. In addition, a plurality of hollow cavities arranged on the side wall of the pipe body can play a good sound insulation effect, and noise emitted from the inside of the pipe body and noise passing through the pipe body can be well separated. Therefore, the PP mute water drainage pipe has a good sound insulation effect through the arrangement of the spiral ribs and the hollow cavities.

It should be noted that, compared with the process of coating a multi-layer mute pipe outside a PP mute drain pipe, the process of processing the spiral rib and the middle hollow cavity is simpler and has lower cost.

Drawings

Fig. 1 is a cross-sectional view of a PP silent drain pipe according to an embodiment of the present invention.

In the figure, 1, a tube body; 2. a helical rib; 3. a hollow chamber; 4. and a UV resistant layer.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1, the PP silent drain pipe according to the preferred embodiment of the present invention comprises a pipe body 1; a plurality of spiral ribs 2 which extend along the pipe body 1 and spiral in the same direction are arranged on the inner wall surface of the pipe body 1; the side wall of the pipe body 1 is provided with a plurality of hollow cavities 3, and the hollow cavities 3 are arranged around the axis of the pipe body 1 at intervals in the circumferential direction. The hollow cavities are also distributed along the extending direction of the pipe body; in the extending direction of the pipe body, two adjacent hollow cavities are staggered.

Based on the above scheme, when in use, the plurality of spiral ribs 2 of the present embodiment can play a guiding role, so that the fluid entering the pipe body 1 flows along a spiral direction to form a hollow fluid column; at this time, since the friction force between the fluid and the inner wall of the pipe body 1 is reduced, the collision between the fluid and the fluid will be reduced and weakened, the flow rate of the fluid will be increased, and the collision between the fluid and the inner wall of the pipe body 1 will be reduced and weakened, thereby reducing the noise generated by the PP silent drain pipe. In addition, the plurality of hollow chambers 3 formed in the side wall of the pipe body 1 can provide a good sound insulation effect, and can better separate noise emitted from the inside of the pipe body 1 and noise passing through the pipe body 1. In addition, the hollow cavities 3 of this embodiment are distributed along the extending direction of the pipe body 1, and two adjacent hollow cavities 3 are arranged in a staggered manner in the extending direction of the pipe body 1, so that the sound insulation effect of the pipe body 1 is further improved. Therefore, the PP mute water drainage pipe of the embodiment has good sound insulation effect through the arrangement of the plurality of spiral ribs 2 and the plurality of hollow cavities 3 which are distributed in a staggered manner.

It should be noted that, compared with the process of coating a multi-layer silent pipe outside a PP silent drain pipe, the process of processing the spiral rib 2 and the hollow cavity is simpler and has lower cost.

Further, in some embodiments, referring to fig. 1, in the circumferential direction of the pipe body 1, a plurality of the spiral ribs 2 are disposed at equal intervals, and a plurality of the hollow chambers 3 are disposed at equal intervals.

In this embodiment, the plurality of spiral ribs 2 arranged at equal intervals can make the formed hollow fluid column uniform, and reduce the impact strength and frequency to the inner wall of the pipe body 1 more effectively.

Further, in some embodiments, referring to fig. 1, the central angle of the circular arc between two adjacent spiral ribs 2 is 45 ° or 60 ° or 90 ° to facilitate the production process; meanwhile, the more the number of the spiral ribs 2 is, the smaller the central angle is, the more uniform the formed hollow fluid column is, and the higher the production cost is; conversely, the smaller the number of the spiral ribs 2, the larger the central angle, and the less the hollow fluid column is formed, but the production cost is low.

Further, in some embodiments, referring to fig. 1, on the cross section of the pipe body 1, the spiral ribs 2 are respectively triangular with vertex angles away from the inner wall surface of the pipe body 1, so as to improve the flow guiding effect.

Further, in some embodiments, referring to fig. 1, the UV-resistant layer 4 is co-extruded on the outer wall surface of the tube body 1, so as to improve the UV resistance of the tube body 1, thereby improving the service life thereof.

Further, in some embodiments, referring to fig. 1, the UV-resistant layer is filled with UV master batch.

Further, in some embodiments, referring to fig. 1, the UV resistant layer is polypropylene.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The PP mute drain pipe is characterized by comprising a pipe body;

a plurality of spiral ribs which extend along the pipe body and spiral in the same direction are arranged on the inner wall surface of the pipe body;

the side wall of the pipe body is provided with a plurality of hollow chambers which are arranged at intervals in the circumferential direction around the axis of the pipe body; the hollow cavities are also distributed along the extending direction of the pipe body; in the extending direction of the pipe body, two adjacent hollow cavities are staggered.

2. The PP silent drain pipe according to claim 1, wherein a plurality of the spiral ribs are arranged at equal intervals and a plurality of the hollow chambers are arranged at equal intervals in the circumferential direction of the pipe body.

3. The PP silent drain pipe of claim 2, wherein the central angle of the circular arc between two adjacent spiral ribs is 45 ° or 60 ° or 90 °.

4. The PP silent drain pipe according to claim 1, wherein the plurality of spiral ribs are respectively triangular in cross section of the pipe body with an apex angle away from the inner wall surface of the pipe body.

5. The PP silent drain pipe of claim 1, wherein an anti-UV layer is co-extruded on the outer wall surface of the pipe body.

6. The PP silent drain pipe according to claim 5, wherein the UV resistant layer is filled with UV master batch.

7. The PP silent drain pipe of claim 6, wherein the UV resistant layer is polypropylene.