Anti-falling sound insulation board for engine hood

Abstract

The utility model discloses an anti-drop sound insulation board for an engine hood, which comprises a sound insulation board body, the sound insulation board body is composed of a fixing board and a sound absorption board, the sound absorption board is fixed at the bottom of the fixing board through bolts, and a plurality of connecting lug boards are arranged on the periphery of the fixing board side by side at intervals. And each connecting lug plate is fixedly connected with the engine cover through the corresponding first fixing mechanism. The multi-stage fixing mechanisms are arranged at the joint of the sound insulation board body and the engine hood, so that the sound insulation board body is fixed from top to bottom through the first fixing mechanisms, and the sound insulation board body is fixed from bottom to top through the second fixing mechanisms; the first fixing mechanism and the second fixing mechanism are used for fixing the sound insulation board in a multi-stage mode, the situation that the sound insulation board falls off due to the fact that the bolts fall off slowly due to vibration generated during engine starting is prevented, and the dust prevention, sound insulation, heat insulation and protection efficiency of the sound insulation board on the automobile engine in the engine hood is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle noise reduction, in particular to an anti-falling sound insulation board for an engine hood. Background Art

[0002] When the vehicle is idling or driving, the engine, as one of the main noise sources, radiates noise into the vehicle through the air and body panels. The engine hood, also called the engine cover, is another layer of protection outside the car hood. It is usually installed in the engine compartment and covers the engine to prevent dust, sound, heat, protect and beautify the engine compartment.

[0003] The Chinese utility patent of the prior art discloses an engine sound-absorbing and insulating panel (application number 2020212487279), which directly fixes the sound-absorbing and insulating panel to the engine hood by a single bolt fixing method, and does not provide a multi-stage fixing mechanism on the sound-absorbing and insulating panel, so that the vibration generated when the engine is started will cause the bolts to slowly fall off, thereby causing the sound-absorbing and insulating panel to fall off, affecting the protective effect of the engine hood on the engine compartment. Utility Model Content

[0004] In view of the above defects or shortcomings in the prior art, it is desired to provide an anti-falling sound insulation board for an engine hood, which is used to solve the technical problem that the existing sound insulation board for an engine hood is fixed to the engine hood by a single bolt fixing method, and a multi-stage fixing mechanism is not provided on the sound insulation board, so that the vibration generated when the engine is started will cause the bolts to fall off slowly, thereby causing the sound insulation board to fall off, thereby affecting the protective effect of the engine hood on the engine compartment.

[0005] According to the technical solution provided in the embodiment of the present application, an anti-dropping sound insulation board for an engine hood includes a sound insulation board body, which is composed of a fixing plate and a sound absorbing board, wherein the sound absorbing board is fixed to the bottom of the fixing plate by bolts, and the fixing plate is provided with a plurality of connecting ear plates arranged in parallel and in between around the fixing plate, and each of the connecting ear plates is fixedly connected to the engine hood by a corresponding first fixing mechanism, so that the first fixing mechanisms perform primary fixing on the sound insulation board body, and the fixing plate is also evenly provided with a plurality of connecting holes inside, and each of the connecting holes is installed with a corresponding second fixing mechanism, so that each of the second fixing mechanisms performs secondary fixing on the sound insulation board body;

[0006] The first fixing mechanism comprises a first fixing bolt and a first elastic member, the first fixing bolt is screwed into a fixing groove provided on the engine hood, the connecting ear plate is installed in the fixing groove, the connecting ear plate is movably sleeved on the first fixing bolt, and the first elastic member is sleeved on the upper part of the connecting ear plate on the first fixing bolt, so that the first fixing mechanism fixes the sound insulation board body;

[0007] The second fixing mechanism includes a second fixing bolt, a connecting block and a second elastic member. A movable groove is provided on the engine hood, and the connecting block is slidably installed in the movable groove. The second elastic member is installed on the top of the connecting block in the movable groove. The second fixing bolt passes through the connecting hole on the fixing plate from the bottom and is screwed to the connecting block, so that the second fixing mechanism fixes the sound insulation board body.

[0008] Furthermore, a mounting groove is provided at the bottom of the engine hood, and the sound insulation board body is installed in the mounting groove.

[0009] Furthermore, the sound absorbing panel is made of sponge material.

[0010] Furthermore, the first fixing bolt is screwed into the fixing groove from top to bottom.

[0011] Furthermore, the first elastic member and the second elastic member are springs made of metal material.

[0012] In summary, the beneficial effects of this application are:

[0013] First, by arranging a multi-stage fixing mechanism at the connection between the sound insulation board body and the engine hood, a plurality of first fixing mechanisms fix the sound insulation board body from top to bottom, and a plurality of second fixing mechanisms fix the sound insulation board body from bottom to top, so that the first fixing mechanism and the second fixing mechanism fix the sound insulation board at multiple levels, preventing the vibration generated when the engine is started from causing the bolts to fall off slowly, thereby causing the sound insulation board to fall off, thereby improving the dustproof, soundproof, heat-insulating and protective efficiency of the sound insulation board for the automobile engine in the engine hood;

[0014] Second, by arranging the first elastic member and the second elastic member on the first fixing mechanism and the second fixing mechanism, when the engine hood is installed on the outside of the automobile engine, the sound insulation board is pushed to move along the installation groove on the engine hood, and the first elastic member and the second elastic member metal springs are compressed so that the first elastic member and the second elastic member metal springs absorb the vibration generated when the automobile engine is started, thereby improving the dustproof, soundproof, heat-insulating and protective efficiency of the sound insulation board for the automobile engine in the engine hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 This is a schematic diagram of the connection structure between the sound insulation board and the engine hood of the utility model;

[0017] Figure 2This is a schematic diagram of the cross-sectional structure of the engine hood of the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0020] Reference numerals in the figure: sound insulation board body -100, fixing plate -110, connecting ear plate -111, sound absorbing board -120, first fixing mechanism -200, first fixing bolt -210, first elastic member -220, engine cover -300, fixing groove -310, movable groove -320, installation groove -330, second fixing mechanism -400, second fixing bolt -410, connecting block -420, second elastic member -430. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] An anti-dropping sound insulation board for an engine hood, the structure of which is as follows Figure 1-Figure 4As shown, the sound insulation board body 100 is composed of a fixing plate 110 and a sound absorbing plate 120. The sound absorbing plate 120 is fixed to the bottom of the fixing plate 110 by bolts, and the fixing plate 110 is surrounded by a plurality of connecting ear plates 111 arranged in parallel and arranged in between. Each connecting ear plate 111 is fixedly connected to the engine hood 300 through a corresponding first fixing mechanism 200, so that the first fixing mechanisms 200 perform primary fixing on the sound insulation board body 100, and the fixing plate 110 is evenly provided with a plurality of connecting holes, each of which has a plurality of connecting holes. The corresponding second fixing mechanism 400 is installed, so that each second fixing mechanism 400 performs secondary fixing on the sound insulation board body 100, so that the first fixing mechanism 200 and the second fixing mechanism 400 perform multi-level fixing on the sound insulation board body 100, thereby preventing the sound insulation board from falling off from the engine hood 300; the first fixing mechanism 200 includes a first fixing bolt 210 and a first elastic member 220, the first fixing bolt 210 is screwed into a fixing groove 310 provided on the engine hood 300, and the fixing groove 310 is installed with a connecting ear plate 11 1, the connecting ear plate 111 is movably sleeved on the first fixing bolt 210, and the first elastic member 220 is sleeved on the upper part of the connecting ear plate 111 on the first fixing bolt 210, so that the first elastic member 220 elastically abuts against the connecting ear plate 111, so that the first fixing mechanism 200 fixes the sound insulation board body 100; the second fixing mechanism 400, which includes a second fixing bolt 410, a connecting block 420 and a second elastic member 430, a moving groove 320 is provided on the engine hood 300, and the connecting block 420 is slidably installed in the moving groove 320, The second elastic member 430 is installed on the top of the connecting block 420 in the movable groove 320, so that the second elastic member 430 elastically abuts against the connecting block 420, and a positioning groove is also provided in the movable groove 320, and a corresponding positioning block is provided on the connecting block 420, so that the connecting block 420 is positioned and clamped in the positioning groove, so that it can be positioned and moved along the positioning groove, and the second fixing bolt 410 passes through the connecting hole on the fixing plate 110 from the bottom and is screwed on the connecting block 420, so that the second fixing mechanism 400 fixes the sound insulation board body 100.

[0024] When the sound insulation board is installed in the engine hood 300, the sound absorbing board 120 on the sound insulation board is fixedly installed on the bottom of the fixing plate 110 by bolts, and a plurality of connecting ear plates 111 are evenly arranged around the fixing plate 110, each connecting ear plate 111 is clamped in a corresponding fixing groove 310 arranged on the engine hood 300, and each fixing groove 310 is installed with a first elastic member 220 on the first fixing mechanism 200, and the first fixing bolt 210 on the first fixing mechanism 200 passes through the first elastic member 220 and the through hole on the connecting ear plate 111 from top to bottom, and is screwed on the fixing groove 310, so that the first fixing mechanism The structure 200 performs primary fixing on the fixing plate 110 on the sound insulation board body 100, and at the same time, the bolts on the second fixing mechanism 400 pass through the connecting holes on the fixing plate 110 from bottom to top, and are screwed on the connecting block 420 movably installed on the moving groove 320 of the engine hood 300, so that the second fixing mechanism 400 performs secondary fixing on the sound insulation board body 100, so that the sound insulation board is fixedly installed in the engine hood 300, preventing the vibration generated when the engine is started from causing the bolts to slowly fall off, thereby causing the sound insulation board to fall off, thereby improving the dustproof, soundproof, heat-insulating and protective efficiency of the sound insulation board on the automobile engine in the engine hood 300.

[0025] As a preferred embodiment, please refer to Figure 1 and Figure 2 A mounting groove 330 is provided at the bottom of the engine cover 300 , and the sound insulation board body 100 is installed in the mounting groove 330 , so that the sound insulation board body 100 can move along the mounting groove 330 .

[0026] As a preferred embodiment, please refer to Figure 1 and Figure 2 The sound absorbing plate 120 is made of sponge material and is used to absorb the noise generated by the operation of the engine in the engine cover 300.

[0027] As a preferred embodiment, please refer to Figure 2 and Figure 3 The first fixing bolt 210 is screwed into the fixing groove 310 from top to bottom, so that the first fixing mechanism 200 fixes the sound insulation board body 100 from top to bottom.

[0028] As a preferred embodiment, please refer to Figure 3 and Figure 4 The first elastic member 220 and the second elastic member 430 are metal springs, so that the first elastic member 220 and the second elastic member 430 can absorb the vibration generated when the automobile engine is started.

[0029] The working principle of the anti-falling sound insulation board for engine hood of the utility model is:

[0030] When the sound insulation board is installed in the engine hood 300, the sound absorbing board 120 on the sound insulation board is fixedly installed on the bottom of the fixing plate 110 by bolts, and a plurality of connecting ear plates 111 are evenly arranged around the fixing plate 110, each connecting ear plate 111 is clamped in a corresponding fixing groove 310 arranged on the engine hood 300, and a first elastic member 220 on the first fixing mechanism 200 is installed in each fixing groove 310, and the first fixing bolt 210 on the first fixing mechanism 200 passes through the through holes on the first elastic member 220 and the connecting ear plate 111 from top to bottom, and is screwed to the fixing groove 310, so that the first fixing mechanism 200 performs primary fixing on the fixing plate 110 on the sound insulation board body 100, and at the same time, the bolt on the second fixing mechanism 400 passes through the connecting hole on the fixing plate 110 from bottom to top, and is screwed to the movable groove 310 of the engine hood 300. The second fixing mechanism 400 is mounted on the connecting block 420 movably installed on the engine hood 320, so that the second fixing mechanism 400 performs secondary fixing on the sound insulation board body 100, so that the sound insulation board is fixedly installed in the engine hood 300, so as to prevent the vibration generated when the engine is started from causing the bolts to slowly fall off, thereby causing the sound insulation board to fall off, thereby improving the dustproof, soundproof, heat-insulating and protective efficiency of the sound insulation board for the automobile engine in the engine hood 300. At the same time, when the engine hood 300 is installed on the outside of the automobile engine, the sound insulation board is pushed to move along the installation groove 330 on the engine hood 300, and the first elastic member 220 and the second elastic member 430 metal springs are compressed, so that the first elastic member 220 and the second elastic member 430 metal springs absorb the vibration generated when the automobile engine is started, thereby improving the dustproof, soundproof, heat-insulating and protective efficiency of the sound insulation board for the automobile engine in the engine hood 300.

[0031] The beneficial effects of the anti-falling sound insulation board for the engine hood of the utility model are:

[0032] First, a multi-stage fixing mechanism is provided at the connection between the sound insulation board body 100 and the engine hood 300, so that a plurality of first fixing mechanisms 200 fix the sound insulation board body 100 from top to bottom, and a plurality of second fixing mechanisms 400 fix the sound insulation board body 100 from bottom to top, so that the first fixing mechanism 200 and the second fixing mechanism 400 fix the sound insulation board at multiple levels, thereby preventing the vibration generated when the engine is started from causing the bolts to fall off slowly, thereby causing the sound insulation board to fall off, thereby improving the dustproof, soundproof, heat-insulating and protective efficiency of the sound insulation board for the automobile engine in the engine hood 300;

[0033] Second, by arranging the first elastic member 220 and the second elastic member 430 on the first fixing mechanism 200 and the second fixing mechanism 400, when the engine hood 300 is installed on the outside of the automobile engine, the sound insulation board is pushed to move along the installation groove 330 on the engine hood 300, and the metal springs of the first elastic member 220 and the second elastic member 430 are compressed, so that the metal springs of the first elastic member 220 and the second elastic member 430 absorb the vibration generated when the automobile engine is started, thereby improving the dustproof, soundproof, heat-insulating and protective efficiency of the sound insulation board on the automobile engine in the engine hood 300.

[0034] The above description is only an explanation of the preferred embodiments of the present application and the technical principles and other schemes used. At the same time, the scope of the utility model involved in the present application is not limited to the technical scheme formed by a specific combination of the above technical features, but also includes other technical schemes formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical scheme.

Claims

1. An anti-falling sound insulation board for an engine hood, characterized by: The invention comprises a sound insulation board body (100), which is composed of a fixing plate (110) and a sound absorbing plate (120), wherein the sound absorbing plate (120) is fixed to the bottom of the fixing plate (110) by bolts, and the fixing plate (110) is provided with a plurality of connecting ear plates (111) arranged in parallel and spaced apart around the fixing plate (110), and each of the connecting ear plates (111) is fixedly connected to an engine hood (300) by a corresponding first fixing mechanism (200), so that the plurality of first fixing mechanisms (200) perform primary fixing on the sound insulation board body (100), and the fixing plate (110) is evenly provided with a plurality of connecting holes inside, and each of the connecting holes is provided with a corresponding second fixing mechanism (400), so that each of the second fixing mechanisms (400) performs secondary fixing on the sound insulation board body (100); The first fixing mechanism (200) comprises a first fixing bolt (210) and a first elastic member (220), wherein the first fixing bolt (210) is screwed into a fixing groove (310) provided on the engine hood (300), and the connecting ear plate (111) is installed in the fixing groove (310), and the connecting ear plate (111) is movably sleeved on the first fixing bolt (210), and the first elastic member (220) is sleeved on the upper part of the connecting ear plate (111) on the first fixing bolt (210), so that the first fixing mechanism (200) fixes the sound insulation board body (100); The second fixing mechanism (400) comprises a second fixing bolt (410), a connecting block (420) and a second elastic member (430); a movable groove (320) is provided on the engine hood (300); the connecting block (420) is slidably installed in the movable groove (320); the second elastic member (430) is installed on the top of the connecting block (420) in the movable groove (320); the second fixing bolt (410) passes through the connecting hole on the fixing plate (110) from the bottom and is screwed on the connecting block (420), so that the second fixing mechanism (400) fixes the sound insulation board body (100).

2. The anti-falling sound insulation board for engine hood according to claim 1, characterized in that: The bottom of the engine cover (300) is provided with a mounting groove (330), and the sound insulation board body (100) is mounted in the mounting groove (330).

3. The anti-falling sound insulation board for engine hood according to claim 1, characterized in that: The sound absorbing plate (120) is made of sponge material.

4. The anti-falling sound insulation board for engine hood according to claim 1, characterized in that: The first fixing bolt (210) is screwed into the fixing groove (310) from top to bottom.

5. The anti-falling sound insulation board for engine hood according to claim 1, characterized in that: The first elastic member (220) and the second elastic member (430) are springs made of metal material.

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