Air duct silencer device

Abstract

The utility model relates to the technical field of air duct silencer devices, in particular to an air duct silencer device, comprising an air duct and a square frame, the front and rear ends of the outer wall of the air duct are respectively fixedly connected to the inner wall of the square frame, the outer wall of the square frame is processed with a plurality of circular openings, a protective pad is fixedly connected to the outer side of the square frame, the upper and lower sides of the inner wall of the air duct are respectively connected with silencer structures, the left and right sides of the inner wall of the air duct are respectively fitted with second silencer plates, so that the circular ring is separated from the surface of the first silencer plate, and then the first screw slides outward in the outer wall slide groove of the first silencer plate, thereby driving the slide plate to move outward, and the outer side of the slide plate will be inserted into the end of the second silencer plate to achieve complete closure of the silencer plate, and then the circular ring rotates outward on the outer wall of the first screw, so that the circular ring is tightly pressed against the outer wall of the first silencer plate, and the position of the first screw is fixed, thereby improving the silencer effect of the air duct silencer device and eliminating the use limitations of the air duct silencer device.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct silencer devices, in particular to an air duct silencer device. Background Art

[0002] The air duct silencer is a device that sets a silencer plate on the inner wall of the air duct to absorb the wind sound generated to reduce the noise.

[0003] For example, a ship structure air duct silencer with the authorization announcement number "CN215577664U" is a structure air duct silencer of the utility model. The silencer board is simple to manufacture and flexible in size, and can be conveniently manufactured into any polygonal shape. Multiple silencer boards can be installed through flexibly arranged angle steel brackets, which can basically cover the entire structure air duct. The bolt holes on the angle steel brackets are drilled on site, and the single side can compensate for the manufacturing and positioning errors of ±20mm. The installation is simple and reliable. However, when the air duct silencer is in use, the silencer board only basically covers the inside of the air duct, and there are still gaps at the edges and corners of the inner wall of the air duct silencer. This will intensify the wind sound in the gap, and the complete silencer of the air duct silencer cannot be achieved, which reduces the silencer effect of the air duct silencer and leads to the use limitations of the air duct silencer. Utility Model Content

[0004] The utility model aims to solve the problem that the silencing effect of the air duct silencing device is reduced, resulting in the use limitation of the air duct silencing device, and proposes an air duct silencing device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A duct silencer device is designed, comprising an duct and a square frame, wherein the front and rear ends of the outer wall of the duct are respectively fixedly connected to the inner wall of the square frame, the outer wall of the square frame is processed with a plurality of circular openings, a pad is fixedly connected to the outer side of the square frame, the upper and lower sides of the inner wall of the duct are respectively connected with silencer structures, and the left and right sides of the inner wall of the duct are respectively attached with second silencer plates.

[0007] Preferably, the silencer structure includes a first silencer plate and a slide plate, the outer sides of the two first silencer plates are respectively fitted with the upper and lower sides of the inner wall of the air duct, the outer wall grooves of the first silencer plates are slidably engaged with the outer wall of the slide plate, the front and rear sides of the top of the slide plate are respectively fixed with first screws, and a circular ring is threadedly connected on the upper side of the outer wall of the first screw.

[0008] Preferably, the outer wall of the first screw rod is slidably engaged with the outer wall groove of the first silencer plate.

[0009] Preferably, bent plates are fixedly connected to the left and right sides of the first silencer plate, respectively, and the outer ends of the bent plates are fixedly connected to the outer wall of the second silencer plate.

[0010] Preferably, the inner wall of the bent plate is threadedly connected with a bolt, and the outer wall end of the bolt is threadedly connected to the inner wall of the air duct.

[0011] Preferably, square plates are fixedly connected to the bottoms of the left and right sides of the air duct respectively.

[0012] The utility model provides an air duct silencer, which has the following beneficial effects: a ring in the silencer structure rotates inward on the outer wall of the first screw to separate the ring from the surface of the first silencer plate, and then the first screw slides outward in the slide groove on the outer wall of the first silencer plate, thereby driving the slide plate to move outward, and the outer side of the slide plate will be inserted into the end of the second silencer plate to achieve complete closure of the silencer plate, and then the ring rotates outward on the outer wall of the first screw to tightly abut against the outer wall of the first silencer plate, completing the position fixing of the first screw, thereby improving the silencer effect of the air duct silencer and eliminating the usage limitations of the air duct silencer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the connection relationship between the middle slide plate, the first screw rod and the ring;

[0015] Figure 3 for Figure 1 The structural diagram of A in the figure;

[0016] Figure 4 for Figure 1 Schematic diagram of the connection relationship between the middle plate, the second screw and the vertical cylinder.

[0017] In the figure: 1, air duct, 2, silencer structure, 201, first silencer plate, 202, slide plate, 203, first screw rod, 204, ring, 3, support structure, 301, second screw rod, 302, vertical cylinder, 303, connecting plate, 4, square frame, 5, round mouth, 6, protective pad, 7, bent plate, 8, second silencer plate, 9, bolt, 10, square plate. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Embodiment 1:

[0020] See also Figure 1-4In the present embodiment, a duct silencer device includes an air duct 1 and a square frame 4. The front and rear ends of the outer wall of the air duct 1 are respectively fixedly connected to the inner wall of the square frame 4. The outer wall of the square frame 4 is processed with multiple circular openings 5. The outer side of the square frame 4 is fixedly connected with a pad 6. The pad 6 is made of rubber. The upper and lower sides of the inner wall of the air duct 1 are respectively connected with a silencer structure 2. The left and right sides of the inner wall of the air duct 1 are respectively attached with a second silencer plate 8.

[0021] The sound-absorbing structure 2 includes a first sound-absorbing plate 201 and a slide plate 202. The outer sides of the two first sound-absorbing plates 201 are respectively fitted with the upper and lower sides of the inner wall of the air duct 1. The outer wall notch of the first sound-absorbing plate 201 is slidably engaged with the outer wall of the slide plate 202. The slide plate 202 is subjected to force to slide left and right through the outer wall notch of the first sound-absorbing plate 201. The top front and rear sides of the slide plate 202 are respectively fixed with first screws 203. The upper part of the outer wall of the first screw 203 is threadedly connected with a ring 204. The ring 204 is subjected to force to rotate up and down through the outer wall of the first screw 203. The outer wall of the first screw 203 is slidably engaged with the outer wall slide groove of the first sound-absorbing plate 201. The first screw 203 is subjected to force to slide left and right through the inner part of the outer wall slide groove of the first sound-absorbing plate 201.

[0022] The ring 204 in the silencer structure 2 rotates inward on the outer wall of the first screw 203 to separate from the surface of the first silencer plate 201, and then the first screw 203 slides outward in the outer wall groove of the first silencer plate 201, thereby driving the slide plate 202 to move outward, and the outer side of the slide plate 202 will be inserted into the end of the second silencer plate 8 to achieve complete closure of the silencer plate, and then the ring 204 rotates outward on the outer wall of the first screw 203 to make the ring 204 tightly against the outer wall of the first silencer plate 201, completing the position fixation of the first screw 203, thereby improving the silencer effect of the air duct silencer and eliminating the usage limitations of the air duct silencer.

[0023] The left and right sides of the first silencer plate 201 are respectively fixed with bent plates 7, the outer end of the bent plate 7 is fixed with the outer wall of the second silencer plate 8, the inner wall of the bent plate 7 is threadedly connected with bolts 9, the bolts 9 fix the bent plate 7, the outer wall end of the bolts 9 is threadedly connected with the inner wall of the air duct 1, and the left and right bottoms of the air duct 1 are respectively fixed with square plates 10.

[0024] Working principle:

[0025] When using the device, first make the outer side of the first silencer plate 201 fit with the inner wall of the air duct 1, at this time, the outer side of the second silencer plate 8 also fits with the inner wall of the air duct 1, and then the bolt 9 is threaded through the bent plate 7 and connected with the inner wall of the air duct 1 to complete the installation of the silencer plate, and then the ring 204 is rotated inward on the outer wall of the first screw rod 203 to make the ring 204 disengage from the surface of the first silencer plate 201, and then the first screw 203 slides outward in the outer wall slide groove of the first silencer plate 201, thereby driving the slide plate 202 to move outward, and the outer side of the slide plate 202 will be inserted into the end of the second silencer plate 8 to achieve complete closure of the silencer plate, and then the ring 204 is rotated outward on the outer wall of the first screw rod 203 to make the ring 204 and the outer wall of the first silencer plate 201 tightly pressed to complete the position fixing of the first screw 203, and then the front and rear sides of the air duct 1 are respectively connected with other air ducts 1, and then the external bolts pass through the circular opening 5 to complete the connection of the air duct 1.

[0026] Embodiment 2:

[0027] See also Figure 1-4 : In this embodiment, a duct silencer device also includes a supporting structure 3, which includes a second screw 301, a vertical cylinder 302 and a connecting plate 303. The upper part of the outer wall of the second screw 301 is rotatably connected to the inner side of the square plate 10, the outer wall of the second screw 301 is threadedly connected to the inner wall of the vertical cylinder 302, and the bottom of the outer wall of the vertical cylinder 302 is rotatably connected to the inner wall of the connecting plate 303.

[0028] Working principle:

[0029] After the air duct 1 is installed, the second screw 301 is rotated and adjusted on the inner side of the square plate 10, and then the vertical cylinder 302 is rotated outward on the outer wall of the second screw 301 so that the outer side of the connecting plate 303 fits with the supporting surface, and then the connecting rod passes through the connecting plate 303 and connects with the supporting surface to complete the installation of the air duct 1.

[0030] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An air duct silencing device, comprising an air duct (1) and a square frame (4), characterized in that: The front and rear ends of the outer wall of the air duct (1) are respectively fixedly connected to the inner wall of the square frame (4); the outer wall of the square frame (4) is processed with a plurality of circular openings (5); a protective pad (6) is fixedly connected to the outer side of the square frame (4); the upper and lower sides of the inner wall of the air duct (1) are respectively connected to the silencer structure (2); and the left and right sides of the inner wall of the air duct (1) are respectively attached to the second silencer plate (8).

2. The air duct silencing device according to claim 1, characterized in that: The noise reduction structure (2) comprises a first noise reduction plate (201) and a slide plate (202); the outer sides of the two first noise reduction plates (201) are respectively fitted with the upper and lower sides of the inner wall of the air duct (1); the outer wall notches of the first noise reduction plates (201) are slidably engaged with the outer wall of the slide plate (202); the top and rear sides of the slide plate (202) are respectively fixedly connected with first screw rods (203); and the upper side of the outer wall of the first screw rod (203) is threadedly connected with a circular ring (204).

3. The air duct silencing device according to claim 2, characterized in that: The outer wall of the first screw rod (203) is slidably engaged with the outer wall groove of the first silencer plate (201).

4. The air duct silencing device according to claim 2, characterized in that: The left and right sides of the first silencer plate (201) are respectively fixedly connected with bent plates (7), and the outer ends of the bent plates (7) are fixedly connected to the outer wall of the second silencer plate (8).

5. The air duct silencing device according to claim 4, characterized in that: The inner wall of the bent plate (7) is threadedly connected to a bolt (9), and the outer wall end of the bolt (9) is threadedly connected to the inner wall of the air duct (1).

6. The air duct silencing device according to claim 1, characterized in that: Square plates (10) are fixedly connected to the bottoms of the left and right sides of the air duct (1), respectively.

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