Multilayer composite sound insulation and heat insulation pad for automobile engine

Abstract

The utility model discloses a multilayer composite automobile engine sound insulation and heat insulation pad which comprises an automobile engine hood, and a sound insulation pad assembly is arranged on the inner side of the automobile engine hood. The sound insulation pad assembly comprises a base plate connected with the inner side of an automobile engine hood, the bottom of the base plate is connected with a flame-retardant layer, the bottom of the flame-retardant layer is connected with a third sound insulation layer, the inner side of the base plate is provided with the third sound insulation layer, the bottom of the third sound insulation layer is connected with a buffer layer, the bottom of the buffer layer is connected with a connecting plate, and the inner side of the third sound insulation layer is provided with a connecting plate. A second heat insulation layer and an engine protection assembly are arranged on the inner side of the connecting plate. The engine protection assembly comprises a first sound insulation layer connected with the connecting plate, a first heat insulation layer is arranged on the inner side of the first sound insulation layer, and a second sound insulation layer is arranged on the inner side of the first heat insulation layer. The protection position of the engine protection assembly can be adjusted according to the position of the automobile engine, and therefore the sound insulation and heat insulation effects of the engine protection assembly on the automobile engine can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior decoration, in particular to a multi-layer composite automobile engine sound insulation and heat insulation pad. Background Art

[0002] Car interior mainly refers to the car products used for car interior modification, involving all aspects of the car interior, such as car steering wheel covers, car seat cushions, car floor mats, car perfumes, car pendants, interior ornaments, storage boxes, etc. are all car interior products.

[0003] In order to prevent the engine from generating excessive heat and noise during use of the car, a sound insulation pad is usually installed on the inside of the car hood. However, the thickness and fixing position of the entire existing sound insulation pad are fixed, and the thickness and fixing position of the sound insulation pad cannot be adjusted according to the position of the engine of different vehicles, thereby reducing the use effect of the sound insulation pad and needs to be improved. Utility Model Content

[0004] The utility model aims to provide a multi-layer composite automobile engine sound insulation and heat insulation pad to solve the problem that the thickness and installation position of the sound insulation and heat insulation pad are fixed and difficult to adjust proposed by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer composite automobile engine sound insulation and heat insulation pad, comprising an automobile engine hood, wherein a sound insulation pad assembly is arranged inside the automobile engine hood;

[0006] The sound insulation pad assembly includes a base plate connected to the inner side of the automobile engine hood, a third sound insulation layer is arranged on the inner side of the base plate, a connecting plate is arranged on the inner side of the third sound insulation layer, and a second heat insulation layer and an engine protection assembly are arranged on the inner side of the connecting plate;

[0007] The engine protection component comprises a first sound insulation layer connected to the connecting plate, a first heat insulation layer is arranged inside the first sound insulation layer, and a second sound insulation layer is arranged inside the first heat insulation layer.

[0008] Preferably, a flame retardant layer is connected to the bottom of the substrate, and a third sound insulation layer is connected to the bottom of the flame retardant layer.

[0009] Preferably, a buffer layer is connected to the bottom of the third sound insulation layer, and a connecting plate is connected to the bottom of the buffer layer.

[0010] Preferably, through holes are provided on both sides of the flame retardant layer, the second heat insulation layer, the connecting plate, the buffer layer, the third sound insulation layer and the substrate, and connecting rods are inserted into the through holes.

[0011] Preferably, one end of the connecting rod is connected to a limiting rod, the limiting rod and the connecting rod are connected via a rotating shaft, and the connecting rod is clamped at the bottom of the second thermal insulation layer.

[0012] Preferably, one end of the first sound insulation layer is fixedly connected to a plug rod, and one end of the plug rod is in an arc-shaped structure.

[0013] Preferably, a through hole is provided on the connecting plate, and an insertion rod is inserted into the through hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The device can adjust the protection position of the engine protection component according to the position of the automobile engine, thereby improving the sound insulation and heat insulation effect of the engine protection component on the automobile engine.

[0016] (2) The device is provided with a connecting plate at the bottom of the base plate, the connecting plate is provided with a through hole, and a plug rod is provided at one end of the first sound insulation layer of the engine protection component. By inserting the plug rod into the through hole of the connecting plate, the position of the engine protection component can be accurately adjusted and installed according to the position of the automobile engine, so that the engine protection component can achieve the best effect.

[0017] (3) The device is provided with a connecting rod, and a connecting limit rod is rotated on the connecting rod. By arranging the through holes on both sides of the flame retardant layer, the second thermal insulation layer, the connecting plate, the buffer layer, the third sound insulation layer and the base plate to correspond to the position of the connecting rod, and inserting the connecting rod into both sides of the flame retardant layer, the second thermal insulation layer, the connecting plate, the buffer layer, the third sound insulation layer and the base plate, and rotating the limit rod in a longitudinal state, the flame retardant layer, the second thermal insulation layer, the connecting plate, the buffer layer, the third sound insulation layer and the base plate can be fixedly connected to the automobile engine hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a multi-layer composite automobile engine sound insulation and heat insulation pad of the utility model;

[0019] Figure 2 The utility model is a multi-layer composite automobile engine sound insulation and heat insulation pad Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a top view of an engine protection component of a multi-layer composite automobile engine sound insulation and heat insulation pad of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the connecting plate and the plug rod of a multi-layer composite automobile engine sound insulation and heat insulation pad of the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the connection structure of a connecting rod and a limiting rod of a multi-layer composite automobile engine sound insulation and heat insulation pad.

[0023] In the figure: 1. Automobile hood; 2. Sound insulation pad assembly; 21. Flame retardant layer; 22. Second heat insulation layer; 23. Connecting plate; 24. Buffer layer; 25. Third sound insulation layer; 26. Engine protection assembly; 261. Insert rod; 262. First sound insulation layer; 263. First heat insulation layer; 264. Second sound insulation layer; 27. Base plate; 28. Connecting rod; 29. ​​Limit rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution: a multi-layer composite automobile engine sound insulation and heat insulation pad, comprising an automobile engine hood 1, and a sound insulation pad assembly 2 is arranged inside the automobile engine hood 1;

[0026] The sound insulation pad assembly 2 includes a substrate 27 connected to the inner side of the automobile hood 1, a flame retardant layer 21 is connected to the bottom of the substrate 27, and a third sound insulation layer 25 is connected to the bottom of the flame retardant layer 21; the third sound insulation layer 25 of this structure is a sound insulation sponge; a buffer layer 24 is connected to the bottom of the third sound insulation layer 25, and a connecting plate 23 is connected to the bottom of the buffer layer 24; this structure soundproofs and buffers a part of the vibration generated between the engine and the automobile hood 1 by setting the buffer layer 24; the flame retardant layer 21, the second heat insulation layer 22, the connecting plate 23, the buffer layer 24, the third sound insulation layer 25 and the two sides of the substrate 27 Through holes are provided on both sides, and connecting rods 28 are inserted into the through holes, and one end of the connecting rod 28 is fixedly connected to the automobile engine cover 1; the flame retardant layer 21 of this structure is flame retardant cotton; the material of the second heat insulation layer 22 is a heat insulation board; the buffer layer 24 is sponge; the third sound insulation layer 25 is sound insulation rock wool; one end of the connecting rod 28 is connected to a limiting rod 29, and the limiting rod 29 is connected to the connecting rod 28 through a rotating shaft, and the connecting rod 28 is stuck at the bottom of the second heat insulation layer 22; the limiting rod 29 of this structure is in an "I" shape, and the limiting rod 29 can be rotated to make the limiting rod 29 in a longitudinal state or The through holes on both sides of the flame retardant layer 21, the second heat insulation layer 22, the connecting plate 23, the buffer layer 24, the third sound insulation layer 25 and the substrate 27 are convex on both sides, and the length of the convex part is greater than the length of the limiting rod 29. Therefore, when the limiting rod 29 is in a horizontal state, the limiting rod 29 and the connecting rod 28 can be disengaged from the inside of the through hole, and when the limiting rod 29 is in a longitudinal state, the limiting rod 29 is stuck at the bottom of the second heat insulation layer 22, so that the flame retardant layer 21, the second heat insulation layer 22, the connecting plate 23, the buffer layer 24, the third sound insulation layer 25 and the substrate 27 are in a convex shape with the automobile engine cover. 1 fixed connection; a third sound insulation layer 25 is arranged on the inner side of the base plate 27, a connecting plate 23 is arranged on the inner side of the third sound insulation layer 25, a through hole is opened on the connecting plate 23, and a plug rod 261 is inserted in the through hole; this structure can quickly connect the first sound insulation layer 262 with the connecting plate 23 by setting the plug rod 261; a second heat insulation layer 22 and an engine protection component 26 are arranged on the inner side of the connecting plate 23; the second heat insulation layer 22 and the first sound insulation layer 262 can be adjusted and fixed according to the position of the engine by opening a through hole on the connecting plate 23;

[0027] The engine protection assembly 26 includes a first sound insulation layer 262 connected to the connecting plate 23, and one end of the first sound insulation layer 262 is fixedly connected to a plug rod 261, and one end of the plug rod 261 is an arc-shaped structure; the material of the first sound insulation layer 262 of this structure is sound insulation rock wool; a first thermal insulation layer 263 is arranged on the inner side of the first sound insulation layer 262, and a second sound insulation layer 264 is arranged on the inner side of the first thermal insulation layer 263; one end of the second thermal insulation layer 22 is also provided with a plug rod 261, so that the second thermal insulation layer 22 can be fixed to the connecting plate 23.

[0028] Working principle: When using the multi-layer composite automobile engine sound insulation and heat insulation pad, first install the engine protection component 26 according to the position of the automobile engine. During installation, the insertion rod 261 at one end of the first sound insulation layer 262 corresponds to the position of the through hole on the connecting plate 23, and then press the engine protection component 26 to insert the insertion rod 261 into the inside of the through hole of the connecting plate 23. After the engine protection component 26 is fixed, the second heat insulation layer 22 is fixed to the connecting plate 23 in the same way, so that the second heat insulation layer 22 is located on both sides of the engine protection component 26. After the heat insulation layer 22 is fixed, the through holes on both sides of the flame retardant layer 21, the second heat insulation layer 22, the connecting plate 23, the buffer layer 24, the third sound insulation layer 25 and the substrate 27 are aligned with the positions of the connecting rod 28 on the automobile hood 1, so that the connecting rod 28 is inserted into the flame retardant layer 21, the second heat insulation layer 22, the connecting plate 23, the buffer layer 24, the third sound insulation layer 25 and the substrate 27, and then the limit rod 29 is rotated to make the limit rod 29 in a longitudinal state. At this time, the limit rod 29 is stuck at the bottom of the second heat insulation layer 22, thereby completing the quick connection between the device and the automobile hood 1.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-layer composite automobile engine sound insulation and heat insulation pad, comprising an automobile engine hood (1), characterized in that: A sound insulation pad assembly (2) is arranged on the inner side of the automobile engine hood (1); The sound insulation pad assembly (2) comprises a base plate (27) connected to the inner side of the automobile engine hood (1); a third sound insulation layer (25) is arranged on the inner side of the base plate (27); a connecting plate (23) is arranged on the inner side of the third sound insulation layer (25); and a second heat insulation layer (22) and an engine protection assembly (26) are arranged on the inner side of the connecting plate (23); The engine protection assembly (26) comprises a first sound insulation layer (262) connected to the connection plate (23), a first heat insulation layer (263) is arranged inside the first sound insulation layer (262), and a second sound insulation layer (264) is arranged inside the first heat insulation layer (263).

2. A multi-layer composite automobile engine sound insulation and heat insulation pad according to claim 1, characterized in that: The bottom of the substrate (27) is connected to a flame retardant layer (21), and the bottom of the flame retardant layer (21) is connected to a third sound insulation layer (25).

3. The multi-layer composite automobile engine sound insulation and heat insulation pad according to claim 1, characterized in that: The bottom of the third sound insulation layer (25) is connected to a buffer layer (24), and the bottom of the buffer layer (24) is connected to a connecting plate (23).

4. The multi-layer composite automobile engine sound insulation and heat insulation pad according to claim 2, characterized in that: Through holes are provided on both sides of the flame retardant layer (21), the second heat insulation layer (22), the connecting plate (23), the buffer layer (24), the third sound insulation layer (25) and the base plate (27), and connecting rods (28) are inserted into the through holes.

5. The multi-layer composite automobile engine sound insulation and heat insulation pad according to claim 4, characterized in that: One end of the connecting rod (28) is connected to a limiting rod (29), the limiting rod (29) and the connecting rod (28) are connected via a rotating shaft, and the connecting rod (28) is clamped at the bottom of the second heat insulation layer (22).

6. The multi-layer composite automobile engine sound insulation and heat insulation pad according to claim 1, characterized in that: One end of the first sound insulation layer (262) is fixedly connected to an insertion rod (261), and one end of the insertion rod (261) is in an arc-shaped structure.

7. The multi-layer composite automobile engine sound insulation and heat insulation pad according to claim 1, characterized in that: The connecting plate (23) is provided with a through hole, and an insertion rod (261) is inserted into the through hole.

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