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CN-224211008-U - Automobile lining plate noise reduction device with sound absorption cavity

CN224211008UCN 224211008 UCN224211008 UCN 224211008UCN-224211008-U

Abstract

The utility model provides an automobile lining board noise reduction device with a sound absorption cavity, which comprises a lining board body, a sound insulation rubber layer and a sound insulation cotton layer, wherein the lining board body is arc-shaped, and a first mounting plate and a second mounting plate are respectively fixedly arranged at two ends of the lining board body. Through offer the sound chamber of inhaling and install porous rock wool material in welt body inside, simultaneously with the cooperation on sound insulating rubber layer and sound insulating cotton layer, can improve the device's effect of making an uproar that gives sound insulation, and can cushion the stone that the wheel was taken up through the sound insulating rubber layer that sets up, prevent to take place the striking between stone and the welt body, thereby can reduce noise, the practicality of the device is conveniently improved, through the inserted bar that sets up, bellied grafting cooperation, the convenience is fixed sound insulating rubber layer's upper end, the both ends through the slot convenience are fixed sound insulating rubber layer's both ends, can improve sound insulating rubber layer's stability, also conveniently dismantle and change sound insulating rubber layer, easy operation is convenient.

Inventors

  • TAO JIAWEI
  • SUN ZHIXIANG
  • WANG HONGYAN

Assignees

  • 武汉瑞鑫隆机械配件加工有限公司

Dates

Publication Date
20260508
Application Date
20250728

Claims (8)

  1. 1. The utility model provides a device of making an uproar falls in car welt in chamber is inhaled in area, includes welt body (1), sound insulation rubber layer (6) and soundproof cotton layer (7), a serial communication port, the shape of welt body (1) is the arc, the both ends of welt body (1) are fixed respectively and are provided with first mounting panel (2) and second mounting panel (3), inhale sound chamber (10) have been seted up to the inside of welt body (1), inhale the inside of sound chamber (10) and fixedly be provided with porous rock wool material (11), sound insulation rubber layer (6) are installed on the concave wall of welt body (1) through fixed establishment (12), soundproof cotton layer (7) are fixed on the convex wall of welt body (1) through the adhesive layer.
  2. 2. The automobile lining board noise reduction device with the sound absorption cavity as claimed in claim 1, wherein the first mounting board (2), the second mounting board (3) and the lining board body (1) are integrally formed, and fixing holes (4) are symmetrically formed in one end of the first mounting board (2) and one end of the second mounting board (3).
  3. 3. The automobile lining board noise reduction device with the sound absorption cavity as claimed in claim 2, wherein the top parts of the other ends of the first mounting plate (2) and the second mounting plate (3) are respectively provided with a slot (5), and two ends of the sound insulation rubber layer (6) are inserted and installed in the slots (5).
  4. 4. The device for reducing noise of an automobile lining board with a sound absorption cavity according to claim 1, wherein the sound insulation rubber layer (6) is arc-shaped, and the fixing mechanism (12) comprises a plug rod (13) and a bump (14).
  5. 5. The device for reducing noise of automobile lining board with sound absorption cavity as set forth in claim 4, wherein one end of the inserted link (13) is spherical, and the inserted link (13) is symmetrically and fixedly installed on the concave wall of the lining board body (1).
  6. 6. The device for reducing noise of automobile lining board with sound absorption cavity according to claim 5, wherein the protruding blocks (14) are symmetrically and fixedly arranged on the concave wall of the sound insulation rubber layer (6), and the inserting rods (13) are inserted and installed inside the protruding blocks (14) and the sound insulation rubber layer (6).
  7. 7. The automobile lining board noise reduction device with the sound absorption cavity as claimed in claim 1, wherein the two ends of the inside of the lining board body (1) are symmetrically provided with mounting holes (9), and the inside of the sound insulation cotton layer (7) is provided with the mounting holes (9).
  8. 8. The automobile lining board noise reduction device with the sound absorption cavity as claimed in claim 7, wherein a rear baffle plate (8) is fixedly arranged on a concave wall corresponding to the rear end of the lining board body (1), and a through hole is formed in the inner portion of the lower end of the rear baffle plate (8).

Description

Automobile lining plate noise reduction device with sound absorption cavity Technical Field The utility model relates to the technical field of automobile lining plates, in particular to an automobile lining plate noise reduction device with a sound absorption cavity. Background The automobile interior lining plate is a layer of semicircular plastic plate arranged on the automobile body above the tire, namely the wheel interior lining plate, mainly plays roles of isolating sediment, reducing wind resistance and isolating chassis noise, can reduce road noise of the tire, shields damage to sheet metal parts caused by muddy water, stones and the like which are thrown in the rolling process of the tire, and reduces wind resistance in the high-speed driving process. The interior lining board of the automobile in the prior art is usually a relatively thin plastic plate, and the top of the interior lining board is provided with soundproof cotton, but the soundproof effect is poor, stones carried by tires are easy to impact the interior lining board of the automobile in the running process of the automobile, the generated noise is transmitted to a cab, the influence on the driver is easy to occur, the concentration of the driver is influenced, and the practicability of the interior lining board of the automobile is reduced. Therefore, the utility model provides the automobile lining board noise reduction device with the sound absorption cavity. Disclosure of utility model Aiming at the defects existing in the prior art, the utility model aims to provide the noise reduction device of the automobile lining plate with the sound absorption cavity so as to solve the problems in the prior art, the utility model is characterized in that the sound absorption cavity is arranged in the lining plate body and the porous rock wool material is arranged, simultaneously with the cooperation on sound insulation rubber layer and soundproof cotton layer, can improve the device's effect of making an uproar that gives sound insulation to can cushion the stone that the wheel was taken up through the sound insulation rubber layer that sets up, prevent to take place the striking between stone and the welt body, thereby can the noise reduction, conveniently improve the practicality of device. In order to achieve the aim, the automobile lining board noise reduction device with the sound absorption cavity comprises a lining board body, a sound insulation rubber layer and a sound insulation cotton layer, wherein the lining board body is arc-shaped, a first mounting plate and a second mounting plate are respectively and fixedly arranged at two ends of the lining board body, the sound absorption cavity is formed in the lining board body, porous rock wool materials are fixedly arranged in the sound absorption cavity, the sound insulation rubber layer is arranged on a concave wall of the lining board body through a fixing mechanism, and the sound insulation cotton layer is fixed on a convex wall of the lining board body through an adhesive layer. Further, first mounting panel, second mounting panel and welt body integrated into one piece, the fixed orifices has been seted up to the inside symmetry of the one end of first mounting panel and second mounting panel. Further, slots are formed in the tops of the other ends of the first mounting plate and the second mounting plate, and two ends of the sound insulation rubber layer are inserted and mounted in the slots. Further, the shape of the sound insulation rubber layer is arc-shaped, and the fixing mechanism comprises an inserting rod and a protruding block. Furthermore, one end of the inserted link is spherical, and the inserted link is symmetrically and fixedly arranged on the concave wall of the lining plate body. Further, the convex blocks are symmetrically and fixedly arranged on the concave wall of the sound insulation rubber layer, and the inserting rods are inserted and installed in the convex blocks and the sound insulation rubber layer. Further, the inside both ends symmetry of welt body have been seted up the mounting hole, the inside of soundproof cotton layer is provided with the mounting hole. Further, a rear baffle is fixedly arranged on the concave wall corresponding to the rear end of the lining plate body, and a through hole is formed in the lower end of the rear baffle. The automobile lining plate noise reduction device with the sound absorption cavity has the advantages that the sound absorption cavity is formed in the lining plate body, the porous rock wool material is arranged, meanwhile, the sound insulation noise reduction effect of the device can be improved through the matching of the sound insulation rubber layer and the sound insulation cotton layer, stones carried by wheels can be buffered through the arranged sound insulation rubber layer, the stones are prevented from being impacted with the lining plate body, accordingly, the noise can be reduced, the practicability