Silencing short pipe

Abstract

The utility model discloses a silencing short pipe which comprises a pipe body, the pipe body comprises two connecting parts and two corner parts connected with the two connecting parts respectively, a middle part is connected between the two corner parts, and the pipe body is integrally formed; the guide parts are arranged in the pipe body and connected with the inner wall of the pipe body, the guide parts are arranged in a penetrating mode, a cavity is formed in each guide part, and a plurality of supporting parts and a silencing part are arranged in each cavity. Compared with the prior art, the silencing short pipe is convenient to install, good in silencing effect and capable of guaranteeing smooth airflow circulation.

Description

Technical Field

[0001] The utility model relates to the field of air supply system accessories, in particular to a noise-absorbing short pipe. Background Art

[0002] In the ventilation systems of construction projects and air-conditioning projects, short silencer pipes are usually used to change the direction of airflow and reduce airflow noise.

[0003] The muffler short pipe in the prior art is generally used to connect pipes to change the direction of the pipes. When two air ducts need to be connected, two muffler short pipes and one pipe are needed to connect the two air ducts, which brings many inconveniences to the installation of the air ducts.

[0004] When two short silencer tubes and a pipe are used to connect the air duct, gaps are likely to occur at the joints, and noise is likely to be transmitted from the gaps, resulting in poor silencer effect; at the same time, the airflow through the short silencer tubes is uneven, and most of the airflow is distributed on the side with a larger radius inside the short silencer tubes, which can easily lead to problems with poor airflow.

[0005] Therefore, based on the above problems, it is necessary to improve the existing silencer short pipe to solve the above problems. Utility Model Content

[0006] In view of the problems existing in the above-mentioned prior art, the utility model provides a short silencer pipe, which is easy to install and has a good silencer effect, and can ensure smooth airflow.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] A short sound-absorbing pipe, comprising:

[0009] A tube body, the tube body comprising two connecting parts and two corner parts respectively connected to the two connecting parts, a middle part connected between the two corner parts, and the tube body is integrally formed;

[0010] A plurality of guide members are arranged in the tube body and connected to the inner wall of the tube body. The guide members are perforated and have cavities in them. A plurality of support members and a silencer are arranged in the cavity.

[0011] Preferably, the connecting portion is integrally formed with a mounting portion.

[0012] Preferably, a fireproof layer and a protective layer are provided on the surface of the tube body, and the fireproof layer and the protective layer are connected by an adhesive layer.

[0013] Preferably, the fireproof layer is a fireproof board or fireproof cotton, the adhesive layer is a high-temperature glue, and the protective layer is a steel plate.

[0014] Preferably, the guide member is located at the air inlet of the tube body and is designed to be wedge-shaped.

[0015] Preferably, the corner portion is a right-angle corner portion.

[0016] Preferably, the inner side of the corner portion has a smooth transition.

[0017] Preferably, the sound-absorbing component is a woven fabric wrapped with a sound-absorbing material.

[0018] Preferably, the tube body is made of galvanized steel sheet.

[0019] Preferably, the thickness of the tube body is 0.6 mm-1.5 mm.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The silencer short pipe is easy to install and has a good silencer effect, and can ensure smooth airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a silencer short pipe of the present application.

[0023] Figure 2 It is a schematic diagram of the internal structure of a silencer short pipe of the present application.

[0024] Figure 3 It is a structural schematic diagram of a guide member in a silencer short pipe of the present application. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-3 , the specific implementation methods of the utility model are further described in detail to make the technical solution of the utility model easier to understand and grasp.

[0026] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right side", "end", "front", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply 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 understood as a limitation on the present invention.

[0027] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically described, the connection or fixing method can be through bolt fixing or pin fixing, or pin shaft connection and the like commonly used in the prior art, and therefore, it is not described in detail in this embodiment.

[0028] The following is combined with Figure 1-3This application is described in further detail.

[0029] like Figure 1 As shown, a short silencer pipe comprises:

[0030] A pipe body 1, the pipe body 1 includes two connecting parts 11 and two corner parts 12 respectively connected to the two connecting parts 11, a middle part 13 is connected between the two corner parts 12, and the pipe body 1 is integrally formed; through the integral forming setting, when connecting the air duct, the pipe body 1 can be connected separately, reducing the assembly of the connecting part 11 and the corner part 12 and the corner part 12 and the middle part 13, so that the user can install the air duct conveniently; it also avoids the existence of gaps in the assembly between the connecting part 11 and the corner part 12 and the corner part 12 and the middle part 13, reducing air leakage and avoiding noise from the gap to ensure the sound insulation effect.

[0031] The connecting portion 11 is integrally formed with a mounting portion 3, which is a flange. The mounting portion 3 and the connecting portion 11 are integrally formed, and the mounting portion 3 is assembled on the connecting portion 11 by eliminating the need for bolts or the like, thereby avoiding the presence of a gap at the position where the mounting portion 3 and the connecting portion 11 are assembled, reducing air leakage, and avoiding noise from being transmitted between the mounting portion 3 and the connecting portion 11, thereby further improving the sound-absorbing effect.

[0032] In a preferred embodiment, the tube body 1 is a galvanized steel sheet, which has good corrosion resistance and coating properties and is easy to form; and considering the subsequent strength and forming of the tube body 1, the thickness range of the tube body 1 is set to 0.6mm-1.5mm, because the thicker the tube body 1 is, the greater the strength is, and the more inconvenient it is to form the tube body 1. Therefore, considering the strength and forming of the tube body 1, the thickness of the tube body 1 can be selected within the thickness range of 0.6mm-1.5mm. Of course, since the mounting portion 3 and the connecting portion 11 are integrally formed, the thickness of the mounting portion 3 can also be consistent with the thickness of the tube body 1, that is, 0.6mm-1.5mm.

[0033] In a preferred embodiment, the inner side of the corner portion 12 has a smooth transition, which can reduce airflow resistance and ensure smooth flow of airflow in the tube body 1, so that the airflow flows more smoothly at the corner of the corner portion 12.

[0034] In a preferred embodiment, the corner portion 12 is a right-angled corner portion, and the angle of the corner portion 12 is greater than or equal to 90°, so that the two corner portions 12 are at staggered angles to each other, ensuring the compactness of the structure of the tube body 1 and reducing the space occupied by the tube body 1.

[0035] like Figure 2-3As shown, it also includes a plurality of guide members 2, which are arranged in the tube body 1 and connected to the inner wall of the tube body 1. The guide members 2 are perforated and have a cavity in them. The cavity is provided with a plurality of support members 21 for supporting the tube body 1 and a silencer 22. The guide members 2 guide the airflow in the tube body 1, further maintaining the smooth flow of the airflow and further reducing the noise generated during use, thereby reducing noise environmental pollution.

[0036] In a preferred embodiment, the guide member 2 is located at the air inlet of the tube body 1 and is configured to be wedge-shaped, and the pointed end of the wedge-shaped portion is flush with the end of the air inlet. By configuring the wedge-shaped portion, a good guiding effect can be achieved.

[0037] In a preferred embodiment, the silencer 22 is a woven fabric wrapped with a sound-absorbing material, which not only has a sound-absorbing effect, but also prevents high-speed airflow from carrying the sound-absorbing material out of the tube body 1.

[0038] like Figure 3 As shown, a fireproof layer 4 and a protective layer 5 are provided on the surface of the pipe body 1, and the fireproof layer 4 and the protective layer 5 are connected by an adhesive layer 6. Specifically, the fireproof layer 4 is a fireproof board or fireproof cotton, the adhesive layer 6 is a high-temperature glue, and the protective layer 5 is a steel plate. The protective layer 5 is used to protect the fireproof layer 4 to prevent the fireproof layer 4 from being damaged. The fireproof layer 4 has a good fireproof effect, so that the pipe body 1 not only has a sound-absorbing effect, but also has a fireproof effect.

[0039] The technical effects of this utility model are mainly reflected in the following aspects:

[0040] The silencer short pipe is easy to install and has a good silencer effect, and can ensure smooth airflow.

[0041] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A short silencer pipe, characterized in that: include: A tube body (1), the tube body (1) comprising two connecting parts (11) and two corner parts (12) respectively connected to the two connecting parts (11), a middle part (13) being connected between the two corner parts (12), and the tube body (1) being integrally formed; A plurality of guide members (2) are arranged in the tube body (1) and connected to the inner wall of the tube body (1); the guide members (2) are perforated and a cavity is arranged in the guide members (2); a plurality of support members (21) and a silencer (22) are arranged in the cavity.

2. The muffler short pipe according to claim 1, characterized in that: The connecting portion (11) is integrally formed with a mounting portion (3).

3. The muffler short pipe according to claim 1, characterized in that: The surface of the tube body (1) is provided with a fireproof layer (4) and a protective layer (5), and the fireproof layer (4) and the protective layer (5) are connected via an adhesive layer (6).

4. The muffler short pipe as claimed in claim 3, characterized in that: The fireproof layer (4) is a fireproof board or fireproof cotton, the adhesive layer (6) is a high-temperature glue, and the protective layer (5) is a steel plate.

5. The muffler short pipe as claimed in claim 1, characterized in that: The guide member (2) is located at the air inlet of the tube body (1) and is designed in a wedge shape.

6. The muffler short pipe as claimed in claim 1, characterized in that: The corner portion (12) is a right-angle corner portion.

7. The short sound-absorbing tube as claimed in claim 1, characterized in that: The inner side of the corner portion (12) has a smooth transition.

8. The muffler short pipe as claimed in claim 1, characterized in that: The sound-absorbing component (22) is a sound-absorbing material wrapped in a woven fabric.

9. The muffler short pipe as claimed in claim 1, characterized in that: The tube body (1) is made of galvanized steel plate.

10. The muffler short pipe as claimed in claim 1, characterized in that: The thickness of the tube body (1) is 0.6 mm-1.5 mm.

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