Silencing air outlet

Abstract

A silencing air outlet comprises an air outlet body, a lining and sound absorption cotton, the air outlet body comprises an annular seat plate arranged at the top, a cylindrical connector and a fixed seat plate arranged at the bottom, sound absorption holes and an annular sealing plate arranged at the bottom are arranged on the lining, and the sound absorption cotton is attached to the inner wall of the air outlet body. The upper end of the lining is connected with the cylinder connector, and the annular sealing plate is connected with the lower end of the air outlet body and covers the lower end of the sound-absorbing cotton. Due to the arrangement of the sound-absorbing cotton, the sound-absorbing cotton has sound-absorbing and sound-insulating functions, so that the noise is reduced; the sound-absorbing cotton is attached to the lining and the air outlet body, and the buffering and vibration reduction effects are achieved.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to an air outlet. Background Art

[0002] The current existing technology, Chinese patent 201320691222.3, an electromagnetic suction sealed anti-reverse smoke range hood, including a fan and a box, an exhaust port and two semi-reverse wind-proof plates arranged on the top of the box, the two semi-reverse wind-proof plates are pivotally connected to the exhaust port, and also includes a foldable sealing plate, a magnet and an electromagnet. The exhaust port has a countersunk hole, the countersunk hole has a pivot seat at both ends of a diameter line, and the pivot seat has two semi-axial holes; the two ends of the support plate are respectively fixedly connected to the inner wall of the exhaust port, the foldable sealing plate is fixedly connected to the two semi-reverse wind-proof plates, the N magnet is fixed on the semi-reverse wind-proof plate, the electromagnet is fixed on the magnet seat, and the rotating shaft on the semi-reverse wind-proof plate is engaged with the rotating shaft groove; the edge of the foldable sealing plate is sealed with the bottom plate of the countersunk hole. The problem is: the noise is loud.

[0003] Chinese patent 201420803147.X, a silent range hood, including a range hood body, an exhaust pipe, one end of the exhaust pipe is provided with an air suction port, the other end is provided with an exhaust port, a muffler is provided inside the range hood body, the muffler includes an outer shell, a wind tube, the outer shell and the wind tube are both cavities with openings at both ends, the wind tube is arranged inside the outer shell, the wind tube is a spindle-shaped cavity, the lower end of the wind tube and the lower end of the outer shell together form the air inlet of the muffler, the upper end of the wind tube and the upper end of the outer shell together form the air outlet of the muffler, the air inlet is connected to the fan, the fan is connected to the motor, the air outlet is connected to the air suction port, and small holes are evenly distributed on the wall of the wind tube. The problems are: complex structure, no sound insulation, and the potential risk of vibration. Utility Model Content

[0004] The utility model aims to provide a silencer air outlet, which has the characteristics of silencer, sound insulation and vibration reduction.

[0005] The utility model is realized in this way: a sound-absorbing air outlet, which is special in that it comprises an air outlet body, an inner lining and sound-absorbing cotton,

[0006] The air outlet body includes an annular seat plate at the top, a cylindrical interface and a fixed seat plate at the bottom.

[0007] The inner lining is provided with sound-absorbing holes and an annular sealing plate at the bottom.

[0008] The sound-absorbing cotton is fitted to the inner wall of the air outlet body, the upper end of the lining is connected to the cylinder interface, and the annular sealing plate is connected to the lower end of the air outlet body and covers the lower end of the sound-absorbing cotton.

[0009] The special feature of the silencer air outlet is that a circular outer interface is provided at the upper end of the inner lining.

[0010] The cylindrical interface is inserted into the circular outer interface and fixed.

[0011] The special feature of the silencer air outlet is that a countersunk hole is provided at the lower end of the air outlet body;

[0012] The annular sealing plate is embedded in and fixed to the countersunk hole.

[0013] The special feature of the silencer air outlet is that the bottom of the air outlet body is square, the upper end is round, and the fixed seat plate is square.

[0014] The special feature of the silencer air outlet is that a support frame plate and a pivot seat are provided in the cylindrical interface.

[0015] It also includes two semicircular damper plates, with half shafts provided at both ends of the diameter line of the semicircular damper plates;

[0016] The half shaft is hinged with the pivot seat.

[0017] The utility model discloses a sound-absorbing air outlet, and the arrangement of the sound-absorbing cotton has the functions of sound absorption and sound insulation, thereby reducing noise; the sound-absorbing cotton is fitted with the inner lining and the air outlet body, and has the effect of buffering and vibration reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model.

[0019] Figure 2 It is one of the three-dimensional diagrams of the present utility model.

[0020] Figure 3 It is the second stereogram of the utility model.

[0021] Figure 4 It is one of the three-dimensional exploded views of the utility model.

[0022] Figure 5 This is the second three-dimensional exploded view of the present utility model. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1 As shown, a sound-absorbing air outlet comprises an air outlet body 1, an inner lining 2 and a sound-absorbing cotton 3.

[0026] The air outlet body 1 includes an annular seat plate 11 disposed in the top, a cylindrical interface 12 and a fixed seat plate 13 disposed in the bottom, wherein the cylindrical interface 12 is connected to the annular seat plate 11 and extends into the air outlet body;

[0027] The inner lining 2 is provided with a sound absorbing hole 21 and an annular sealing plate 22 at the bottom.

[0028] The sound-absorbing cotton 3 is fitted to the inner wall of the air outlet body 1, the upper end of the lining 2 is connected to the cylindrical interface 12, and the annular sealing plate 22 is connected to the lower end of the air outlet body 1 and covers the lower end of the sound-absorbing cotton 3;

[0029] The sound-absorbing hole 21 has the functions of silencing and guiding sound, the sound-absorbing cotton silences the sound, and the sound-absorbing cotton fits well with the inner lining and the air outlet body, and also has the function of reducing vibration.

[0030] As a further improvement of the utility model: the upper end of the inner lining 2 is provided with a circular outer interface 23,

[0031] The cylindrical interface 12 is inserted into the circular outer interface 23 and fixed.

[0032] As a further improvement of the utility model: a countersunk hole 14 is provided at the lower end of the air outlet body 1;

[0033] The annular sealing plate 22 is engaged with and fixed to the counterbore 14 .

[0034] The air outlet body 1 has a square bottom and a circular upper end, and the fixed seat plate 13 is square.

[0035] As a further improvement of the present invention: a support frame plate 121 and a pivot seat 122 are provided in the cylindrical interface 12.

[0036] It also includes two semicircular damper plates 4, with half shafts provided at both ends of the diameter line of the semicircular damper plates 4;

[0037] The half shaft is hinged to the pivot seat 122 to prevent smoke from falling back.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A silencing air outlet, characterized in that: Including the air outlet body, lining and sound-absorbing cotton, The air outlet body includes an annular seat plate at the top, a cylindrical interface and a fixed seat plate at the bottom. The inner lining is provided with sound-absorbing holes and an annular sealing plate at the bottom. The sound-absorbing cotton is fitted to the inner wall of the air outlet body, the upper end of the lining is connected to the cylinder interface, and the annular sealing plate is connected to the lower end of the air outlet body and covers the lower end of the sound-absorbing cotton.

2. The sound-absorbing air outlet according to claim 1, characterized in that: The upper end of the lining is provided with a circular outer interface. The cylindrical interface is inserted into the circular outer interface and fixed.

3. The silencing air outlet according to claim 1, characterized in that: A countersunk hole is provided at the lower end of the air outlet body; The annular sealing plate is embedded in and fixed to the countersunk hole.

4. The sound-absorbing air outlet according to claim 1, characterized in that: The bottom of the air outlet body is square, the upper end is round, and the fixed seat plate is square.

5. A sound-absorbing air outlet according to claim 1, 2, 3 or 4, characterized in that: The cylindrical interface is provided with a support frame plate and a pivot seat. It also includes two semicircular damper plates, with half shafts provided at both ends of the diameter line of the semicircular damper plates; The half shaft is hinged with the pivot seat.

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