Noise reduction device for air outlet of dust collector

Abstract

The utility model discloses a dust collector air outlet noise reduction device, and belongs to the technical field of dust collector noise reduction. Comprising a mounting base, the mounting base is mounted in a dust collector shell, a fan is mounted in the mounting base, an air outlet pipe is mounted at an air outlet of the fan, an annular groove is formed in an air outlet end opening of the air outlet pipe, so that the end of the air outlet pipe forms a step shape from outside to inside, the air outlet pipe is sleeved with a noise reduction pipe, and the noise reduction pipe is connected with the air outlet end opening of the fan. A noise reduction assembly is installed at an air outlet end opening of the air outlet pipe, the noise reduction assembly is partially inserted into the annular groove, and the noise reduction assembly is installed at the air outlet end opening of the air outlet pipe through a fixing cover plate. The noise reduction assembly is installed in the air outlet pipe under the cooperation of the fixed cover plate and the air outlet pipe, the air flow speed and power are reduced under the action of the air guide part of the noise reduction assembly, the purpose of noise reduction is achieved, and the noise reduction effect is improved under the cooperation of the sound absorption plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of noise reduction of vacuum cleaners, and in particular relates to a noise reduction device for an air outlet of a vacuum cleaner. Background Art

[0002] A vacuum cleaner is a cleaning device used in home and commercial environments, designed to collect dust, tiny particles and debris through suction. Vacuum cleaners come in a variety of designs and functions, ranging from simple handheld to high-tech intelligent robot vacuum cleaners. Modern vacuum cleaners usually include horizontal, vertical and handheld types, each with different advantages and usage scenarios. However, the noise generated by vacuum cleaners during operation often interferes with people's daily lives, especially the noise problem of the air outlet. In order to solve this problem, a noise reduction device for the air outlet of a vacuum cleaner is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a noise reduction device for the air outlet of a vacuum cleaner, which solves the above-mentioned problems existing in the prior art.

[0004] Technical solution: A vacuum cleaner air outlet noise reduction device, comprising a mounting base, wherein the mounting base is mounted in a vacuum cleaner casing, a fan is mounted in the mounting base, an air outlet of the fan is mounted with an air outlet pipe, an annular groove is provided at the air outlet port of the air outlet pipe, so that the end of the air outlet pipe forms a step from the outside to the inside, a noise reduction pipe is sleeved on the outside of the air outlet pipe, a noise reduction component is installed at the air outlet port of the air outlet pipe, the noise reduction component is partially inserted into the annular groove, and the noise reduction component is installed at the air outlet port of the air outlet pipe through a fixed cover plate.

[0005] Preferably, the noise reduction component includes an annular plate, which is placed at the air outlet end of the air outlet duct. The annular plate is provided with a plug-in ring near the air outlet end of the air outlet duct, and the plug-in ring is inserted into the annular groove so that the annular plate abuts against the air outlet port of the air outlet duct. The inner wall of the annular plate is provided with four groups of ventilation plates, and the ventilation plates extend into the air outlet duct along the inner wall of the annular plate and are connected to each other on the sides to form an air guide portion. The longitudinal cross-section of the air guide portion is a pointed structure, and a plurality of ventilation holes are provided on the ventilation plate.

[0006] Preferably, the noise reduction component further includes a rubber pad, which is sleeved on the air guide portion and fits onto the annular plate, and is used to isolate the annular plate from the air outlet end of the air outlet pipe.

[0007] Preferably, the noise reduction component further includes sound absorbing panels of the same number as the ventilation panels, the sound absorbing panels are provided with a plurality of holes, the sound absorbing panels are mounted on the outside of the ventilation panels, and the holes are connected to the ventilation holes.

[0008] Preferably, the noise reduction pipe includes a mounting ring, which is mounted on the air outlet of the fan through the mounting ring, and a pipe is installed at the end of the mounting ring away from the air outlet of the fan, and the thickness of the pipe gradually increases from the mounting ring to the fixing cover.

[0009] Preferably, the pipe is made of a sound-absorbing board, and the outer wall of the pipe is wrapped with sound-absorbing cotton.

[0010] Beneficial effects: The utility model relates to a noise reduction device for the air outlet of a vacuum cleaner. With the cooperation of the fixed cover plate and the air outlet pipe, the noise reduction component is installed in the air outlet pipe, and under the action of the air guide part of the noise reduction component, the wind flow speed and power are reduced to achieve the purpose of noise reduction, and with the cooperation of the sound absorbing board, the noise reduction effect is improved;

[0011] Secondly, a rubber pad is placed between the annular plate and the air outlet duct to block the noise transmission by isolating the direct contact between the annular plate and the air outlet duct. At the same time, the elasticity of the rubber material is used to reduce vibration transmission, thereby playing a role in shock absorption and noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a partial exploded view of the utility model;

[0014] Figure 3 This is an exploded view of the installation of the noise reduction component of the utility model;

[0015] Figure 4 for Figure 3 sectional view of

[0016] Figure 5 It is a three-dimensional diagram of the noise reduction component of the utility model.

[0017] Figures 1 to 5 The reference numerals in the drawings are: 100, mounting base; 200, fan; 300, air outlet pipe; 400, annular groove; 500, noise reduction pipe; 600, noise reduction component; 700, fixed cover plate;

[0018] 501, mounting ring; 502, pipe; 503, sound-absorbing cotton;

[0019] 601, annular plate; 602, plug-in ring; 603, ventilation plate; 604, ventilation hole; 605, sound-absorbing panel. DETAILED DESCRIPTION

[0020] like Figures 1 to 5As shown, the utility model provides a technical solution: a vacuum cleaner air outlet noise reduction device, comprising a mounting base 100, a fan 200, an air outlet pipe 300, and a noise reduction component 600, wherein the mounting base 100 is mounted in a vacuum cleaner housing, the fan 200 is mounted in the mounting base 100, and the air outlet of the fan 200 is installed with an air outlet pipe 300, as shown in FIG. Figure 3 and Figure 4 As shown, an annular groove 400 is opened at the air outlet port of the air outlet duct 300, so that the end of the air outlet duct 300 forms a step from the outside to the inside, and the air outlet duct 300 is externally sleeved with a noise reduction pipe 500, and the air outlet duct 300 and the noise reduction pipe 500 form a placement groove, and the air outlet port of the air outlet duct 300 is installed with a noise reduction component 600, and the noise reduction component 600 is partially inserted into the placement groove, and the noise reduction component 600 is installed at the air outlet port of the air outlet duct 300 through a fixed cover plate 700, and the noise reduction component 600 is fixed in the air outlet duct 300. With the cooperation of the fixed cover plate 700 and the air outlet duct 300, the noise reduction component 600 is installed in the air outlet duct 300, and under the action of the air guide part of the noise reduction component 600, the wind speed and power are reduced, so as to achieve the purpose of noise reduction, and with the cooperation of the noise reduction pipe 500, the noise reduction effect is improved.

[0021] In a further embodiment, the noise reduction component 600 includes an annular plate 601, and the annular plate 601 is placed at the outlet end of the air outlet pipe 300. The annular plate 601 is provided with a plug ring 602 near the outlet end of the air outlet pipe 300. By inserting the plug ring 602 into the placement groove, the annular plate 601 is abutted against the outlet port of the air outlet pipe 300. The inner wall of the annular plate 601 is provided with four groups of ventilation plates 603, and the ventilation plates 603 extend along the inner wall of the annular plate 601 into the air outlet pipe 300 and are connected to each other on the sides to form The wind guide part has a pointed-angle structure in its longitudinal section, which reduces the wind speed and power to reduce noise. A plurality of ventilation holes 604 are provided on the ventilation plate 603. A sound-absorbing panel 605 having the same number as the ventilation plate 603 is installed on one side of the ventilation plate 603. A plurality of holes are provided on the sound-absorbing panel 605, which is installed on the outside of the ventilation plate 603. The holes are connected to the ventilation holes 604. The ventilation holes 604 cooperate with the holes to partially relieve the airflow pressure and further reduce the noise level.

[0022] In a further embodiment, the noise reduction component 600 also includes a rubber pad, which is sleeved on the air guide portion and fits on the annular plate 601, and is used to isolate the annular plate 601 from the air outlet end of the air outlet pipe 300. The rubber pad is placed between the annular plate 601 and the air outlet pipe 300, and the direct contact between the annular plate 601 and the air outlet pipe 300 is isolated to block noise transmission. At the same time, the elasticity of the rubber material is used to reduce vibration transmission, thereby playing a role in shock absorption and noise reduction.

[0023] In a further embodiment, the noise reduction pipe 500 includes a mounting ring 501, which is installed at the air outlet of the fan 200 through the mounting ring 501. A pipe 502 is installed at the end of the mounting ring 501 away from the air outlet of the fan 200. The thickness of the pipe 502 gradually increases from the mounting ring 501 toward the fixed cover. The pipe 502 is made of a sound-absorbing panel 605, and the outer wall of the pipe 502 is also wrapped with sound-absorbing cotton 503. The double-layer sound-absorbing structure of the sound-absorbing cotton 503 and the sound-absorbing panel 605 can effectively reduce the noise generated by the gas discharged from the air outlet, thereby improving the overall noise reduction effect.

[0024] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A vacuum cleaner air outlet noise reduction device, characterized in that: The invention comprises a mounting base (100), wherein the mounting base (100) is mounted in a housing of a vacuum cleaner, wherein a fan (200) is mounted in the mounting base (100), wherein an air outlet of the fan (200) is mounted with an air outlet pipe (300), wherein an annular groove (400) is provided at the air outlet port of the air outlet pipe (300), so that the end of the air outlet pipe (300) forms a step from the outside to the inside, wherein a noise reduction pipe (500) is sleeved on the outside of the air outlet pipe (300), wherein a noise reduction component (600) is mounted at the air outlet port of the air outlet pipe (300), wherein the noise reduction component (600) is partially inserted into the annular groove (400), and wherein the noise reduction component (600) is mounted at the air outlet port of the air outlet pipe (300) through a fixed cover plate (700).

2. A vacuum cleaner air outlet noise reduction device according to claim 1, characterized in that: The noise reduction component (600) comprises an annular plate (601), the annular plate (601) being placed at the air outlet end of the air outlet pipe (300), the annular plate (601) being provided with a plug-in ring (602) near the air outlet end of the air outlet pipe (300), the plug-in ring (602) being inserted into the annular groove (400) so that the annular plate (601) abuts against the air outlet port of the air outlet pipe (300), the inner wall of the annular plate (601) being provided with four groups of ventilation plates (603), the ventilation plates (603) extending along the inner wall of the annular plate (601) into the air outlet pipe (300) and being connected to each other at the sides to form an air guide portion, the longitudinal cross-section of the air guide portion being a pointed structure, and the ventilation plates (603) being provided with a plurality of ventilation holes (604).

3. A vacuum cleaner air outlet noise reduction device according to claim 2, characterized in that: The noise reduction component (600) further comprises a rubber pad, which is sleeved on the air guide portion and affixed to the annular plate (601) and is used to isolate the annular plate (601) from the air outlet end of the air outlet pipe (300).

4. A vacuum cleaner air outlet noise reduction device according to claim 2, characterized in that: The noise reduction component (600) further comprises a sound absorbing panel (605) having the same number as the ventilation panel (603), wherein a plurality of holes are formed on the sound absorbing panel (605), the sound absorbing panel (605) is mounted on the outside of the ventilation panel (603), and the holes are connected to the ventilation holes (604).

5. The vacuum cleaner air outlet noise reduction device according to claim 1, characterized in that: The noise reduction pipe (500) comprises a mounting ring (501) and is mounted at the air outlet of the fan (200) via the mounting ring (501); a pipe (502) is mounted at the end of the mounting ring (501) away from the air outlet of the fan (200); and the thickness of the pipe (502) gradually increases from the mounting ring (501) towards the fixing cover.

6. A vacuum cleaner air outlet noise reduction device according to claim 5, characterized in that: The pipe (502) is made of a sound-absorbing plate (605), and the outer wall of the pipe (502) is wrapped with sound-absorbing cotton (503).

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