Double-layer PVC sound insulation pipe

Abstract

The utility model discloses a double-layer pvc sound insulation pipe which comprises an inner pipe and an outer pipe, a cavity is formed between the inner pipe and the outer pipe, an inner threaded pipe is arranged on the outer wall of the inner pipe, a bolt penetrates through the outer portion of the outer pipe in an inward threaded mode, the front end of the bolt is connected with the inner threaded pipe in a threaded mode, and sound insulation cotton is arranged on the inner pipe and the outer pipe. The sound insulation cotton is provided with a round hole for the inner threaded pipe to penetrate through, a distance is kept between the outer wall of the sound insulation cotton and the inner wall of the outer pipe, a plurality of arc-shaped grooves are formed in the inner wall of the outer pipe, and the inner pipe and the outer pipe are both made of pvc materials. The pvc pipe adopts a double-layer form, the sound insulation material is arranged in the pvc pipe, a good sound insulation effect can be achieved, wrapping of the sound insulation material in the later period is avoided, meanwhile, the middle part of the pipe body is provided with the sunken part, the inner wall of the pipe body is not smooth, sound transmission can be reduced, and the sound insulation effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC pipes, in particular to a double-layer PVC sound insulation pipe. Background Art

[0002] In construction, PVC pipes are essential drainage materials. At present, all PVC pipes are single-layer. Although they have good wear resistance and are not easily damaged, their sound insulation effect is poor. During the drainage process, the impact sound of water flow in the pipe is obvious, especially at night, the impact sound of water flow generated in the pipe is even more obvious. And many hydropower construction workers will wrap a layer of sound insulation material outside the pipe. Although it has a sound insulation effect, it is rather troublesome, time-consuming and laborious to wrap the sound insulation material after the pipe is installed. Moreover, in some places, due to the installation location and environment, it is impossible to wrap the sound insulation material.

[0003] Therefore, we propose a double-layer PVC sound insulation pipe to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a double-layer PVC sound insulation pipe to solve the problems in the above background art that all current PVC pipes are single-layer. Although they have good wear resistance and are not easily damaged, their sound insulation effect is poor. During the drainage process, the impact sound of water flow in the pipe is obvious, especially at night, the impact sound of water flow generated in the pipe is even more obvious.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A double-layer PVC sound insulation pipe includes an inner pipe and an outer pipe. There is a cavity between the inner pipe and the outer pipe. The outer wall of the inner pipe has an internally threaded pipe, and a bolt penetrates the outer pipe inwardly through the internal thread. The front end of the bolt is threadedly connected to the internally threaded pipe.

[0007] In a further embodiment, the inner pipe and the outer pipe are provided with sound insulation cotton, and the sound insulation cotton has a round hole through which the internally threaded pipe penetrates.

[0008] In a further embodiment, there is a gap between the outer wall of the sound insulation cotton and the inner wall of the outer pipe.

[0009] In a further embodiment, the inner wall of the outer pipe is provided with a plurality of arc-shaped grooves.

[0010] In a further embodiment, both the inner pipe and the outer pipe are made of PVC material.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] This PVC pipe adopts a double-layer form and has sound insulation materials inside, which can achieve a good sound insulation effect and eliminate the need for wrapping sound insulation materials later. At the same time, the middle part of the pipe body has a depression, making the inner wall of the pipe non-smooth, which can reduce the transmission of sound and greatly improve the sound insulation effect. Brief Description of the Drawings

[0013] Figure 1 is a schematic cross-sectional view of the front view of the present utility model;

[0014] Figure 2 is a schematic view of the inner pipe structure in the present utility model;

[0015] Figure 3 is a schematic view of the outer pipe structure in the present utility model.

[0016] In the figure: 1, inner pipe; 2, outer pipe; 3, cavity; 4, sound insulation cotton; 5, arc groove; 6, internal thread pipe; 7, bolt. Detailed Embodiment

[0017] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present 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 should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0018] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-3 a double-layer PVC sound insulation pipe, which includes an inner pipe 1 and an outer pipe 2. The inner pipe 1 and the outer pipe 2 are fixed by bolts 7. That is, a bolt 7 penetrates inwardly through the outer thread of the outer pipe 2, and the front end of the bolt 7 is threadedly connected to the inner threaded pipe 6. After being fixed, there is a cavity 3 between the inner pipe 1 and the outer pipe 2. The cavity 3 can reduce the propagation of part of the sound. During production, a sound insulation cotton 4 can be wrapped around the outside of the inner pipe 1. In this way, it is not necessary to wrap the sound insulation cotton 4 after the entire pipe body is installed. Only by wrapping the inner pipe 1 alone, the consumption of the sound insulation cotton 4 will be less.

[0021] Among them, there is a gap between the outer wall of the sound insulation cotton 4 and the inner wall of the outer pipe 2, that is, the sound insulation cotton 4 does not completely fill the cavity 3 between the inner pipe 1 and the outer pipe 2. In this way, the propagation effect of sound will decrease and the sound insulation effect will be further improved. At the same time, a number of arc-shaped grooves 5 are provided on the inner wall of the outer pipe 2, so that the inner wall of the outer pipe 2 is not smooth, which can reduce the propagation of sound and greatly improve the sound insulation effect.

[0022] For the butt joint of the above-mentioned pipe body, a single-layer pipe body can be used for butt joint.

[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0024] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-layer PVC sound insulation pipe, characterized by: The invention comprises an inner tube (1) and an outer tube (2), wherein a cavity (3) is provided between the inner tube (1) and the outer tube (2), an inner threaded tube (6) is provided on the outer wall of the inner tube (1), a bolt (7) is passed through the outer inward thread of the outer tube (2), and the front end of the bolt (7) is threadedly connected to the inner threaded tube (6).

2. The double-layer PVC sound insulation pipe according to claim 1 is characterized in that: The inner tube (1) and the outer tube (2) are provided with sound insulation cotton (4), and the sound insulation cotton (4) has a circular hole for the internal threaded tube (6) to pass through.

3. The double-layer PVC sound insulation pipe according to claim 2 is characterized in that: A distance is maintained between the outer wall of the sound insulation cotton (4) and the inner wall of the outer tube (2).

4. The double-layer PVC sound insulation pipe according to any one of claims 1 to 3, characterized in that: The inner wall of the outer tube (2) is provided with a plurality of arc-shaped grooves (5).

5. The double-layer PVC sound insulation pipe according to claim 1 is characterized in that: The inner tube (1) and the outer tube (2) are both made of PVC material.

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