An engine compartment sound-absorbing felt

Abstract

This utility model discloses an engine compartment sound-absorbing felt, relating to the field of sound-absorbing felt technology. It includes a limiting strip and a felt body. The felt body is disposed inside the limiting strip. A protective pad is disposed above the felt body, and a base pad is disposed below the felt body. The top surface of the protective pad extends to the outside of the limiting strip, and the bottom surface of the base pad is flush with the bottom surface of the limiting strip. A vacuum adsorption structure connects the limiting strip and the base pad. The vacuum adsorption structure includes a retainer, an adsorption plate, a vacuum pipe, and a connector. This engine compartment sound-absorbing felt can perform vacuum adsorption at the bottom of the sound-absorbing felt, preventing displacement and improving the relative stability of the sound-absorbing felt. It also provides limiting at the internal joints of the sound-absorbing felt, preventing misalignment within the felt.

Description

Technical Field

[0001] This utility model relates to the field of sound-absorbing felt technology, and in particular to a sound-absorbing felt for an engine compartment. Background Technology

[0002] Felt, a common industrial tool, is mostly made of wool, but can also be made of cow hair or fibers. It is made by processing and bonding. Its main characteristics are that it is highly elastic and can be used as a material for shock absorption, sealing, padding, and elastic steel wire needle cloth base felt. Sound-absorbing felt is a new type of felt made of sound-absorbing material. It is needed to be laid in the engine compartment as a padding.

[0003] Chinese Patent Publication No. CN208085139U discloses a needle-punched felt nonwoven fabric for automotive seats, relating to the field of automotive seats. This needle-punched felt nonwoven fabric for automotive seats includes an upper nonwoven fabric body. A left retaining strip is fixedly connected to the left side of the upper nonwoven fabric body, and a right retaining strip is fixedly connected to the right side of the upper nonwoven fabric body. An upper adhesive layer is adhered to the bottom of the upper nonwoven fabric body, and an upper antibacterial layer is adhered to the bottom of the upper adhesive layer. A first activated carbon layer is fixedly connected to the bottom of the upper antibacterial layer, and an elastic fiber layer is fixedly connected to the bottom of the first activated carbon layer. A lower antibacterial layer is fixedly connected to the bottom of the elastic fiber layer. Through the combined use of the upper antibacterial layer, the first activated carbon layer, the lower antibacterial layer, the second activated carbon layer, activated carbon particles, and separators, the activated carbon particles can absorb moisture and odors, preventing a damp environment that provides a growth environment for bacteria and thus preventing bacterial proliferation.

[0004] Traditional sound-absorbing felts, lacking an effective adsorption structure, are prone to displacement under long-term external pressure, severely affecting their stability and reliability after installation. Furthermore, the lack of necessary limiting components at internal joints makes them susceptible to interlayer misalignment and structural instability during use, reducing sound absorption performance and shortening their lifespan. Utility Model Content

[0005] The main objective of this invention is to provide an engine compartment sound-absorbing felt that effectively solves the problems mentioned in the background art. Traditional sound-absorbing felts, due to the lack of an effective adsorption structure, are prone to positional displacement under long-term external pressure, severely affecting the stability and reliability of the sound-absorbing felt after installation. At the same time, the lack of necessary limiting components at the internal joints of the sound-absorbing felt makes it prone to interlayer misalignment and structural instability during use, which not only reduces the sound-absorbing performance of the product but also shortens its actual service life.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An engine compartment sound-absorbing felt includes a limiting strip and a felt body. The felt body is disposed inside the limiting strip. A protective pad is disposed above the felt body, and a base pad is disposed below the felt body. The top surface of the protective pad extends to the outside of the limiting strip. The bottom surface of the base pad is flush with the bottom surface of the limiting strip. An air extraction and adsorption structure connects the limiting strip and the base pad.

[0008] As a further embodiment of this utility model, the air extraction and adsorption structure includes a retainer, an adsorption plate, an air extraction pipe, and a connector. The retainer is disposed on the outside of the limiting strip, the adsorption plate is fixed to the bottom of the base pad, one end of the air extraction pipe is connected to the adsorption plate, and the other end of the air extraction pipe extends to the outside of the limiting strip. The connector is fixed at the end of the air extraction pipe.

[0009] As a further embodiment of this utility model, a connecting sleeve is fixedly connected to the end of the retainer, the connecting sleeve is sleeved on the outer surface of the air extraction pipe, a mounting bracket is fixedly connected to the outer surface of the retainer, a mounting pin is connected through the interior of the mounting bracket, and the mounting bracket is in contact with the limiting strip.

[0010] As a further embodiment of this utility model, the retainer is fixedly connected to the limiting strip by a mounting bracket and a mounting pin, and the air extraction pipe is fixedly connected to the retainer by a connecting sleeve.

[0011] As a further embodiment of this utility model, a first connecting pad is adhered to the top surface of the felt body, and a second connecting pad is adhered to the bottom surface of the protective pad, wherein the first connecting pad and the second connecting pad have the same thickness.

[0012] As a further embodiment of this utility model, the outer surface of the first connecting pad is fixedly connected with a plurality of connecting protrusions, and the interior of the second connecting pad is provided with a connecting groove that matches the connecting protrusions.

[0013] The beneficial effects of this utility model are as follows: by setting up an air extraction and adsorption structure, air extraction and adsorption can be performed at the bottom of the sound-absorbing felt, which can prevent the sound-absorbing felt from shifting and improve the relative stability of the sound-absorbing felt placement.

[0014] By setting a No. 1 connecting pad, a No. 2 connecting pad, a connecting protrusion, and a connecting groove, the internal joint of the sound-absorbing felt can be limited, which can prevent misalignment of the internal joint of the sound-absorbing felt. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an engine compartment sound-absorbing felt according to the present invention;

[0016] Figure 2This is a schematic diagram showing the disassembled parts of the felt body, protective pad, and base pad of the engine compartment sound-absorbing felt according to this utility model.

[0017] Figure 3 This is a schematic diagram of the air extraction and adsorption structure of an engine compartment sound-absorbing felt according to the present invention.

[0018] Figure 4 This is a schematic diagram showing the connection of the No. 1 connecting pad, No. 2 connecting pad, connecting protrusion and connecting groove of the engine compartment sound-absorbing felt according to this utility model.

[0019] In the diagram: 1. Limiting strip; 2. Felt body; 3. Protective pad; 4. Base pad; 5. Air extraction and adsorption structure; 6. Holder; 7. Adsorption plate; 8. Air extraction pipe; 9. Connecting joint; 10. Connecting sleeve; 11. Mounting bracket; 12. Mounting pin; 13. Connecting pad No. 1; 14. Connecting pad No. 2; 15. Connecting protrusion; 16. Connecting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Combination Figures 1-4 An engine compartment sound-absorbing felt includes a limiting strip 1 and a felt body 2. The felt body 2 is disposed inside the limiting strip 1. A protective pad 3 is disposed above the felt body 2, and a base pad 4 is disposed below the felt body 2. The top surface of the protective pad 3 extends to the outside of the limiting strip 1. The bottom surface of the base pad 4 is flush with the bottom surface of the limiting strip 1. An air extraction and adsorption structure 5 connects the limiting strip 1 and the base pad 4.

[0023] See Figure 1 and Figure 3 Furthermore, the suction adsorption structure 5 includes a retainer 6, an adsorption plate 7, a suction pipe 8, and a connector 9. The retainer 6 is located on the outside of the limiting strip 1. The adsorption plate 7 is fixed to the bottom of the base pad 4. One end of the suction pipe 8 is connected to the adsorption plate 7, and the other end of the suction pipe 8 extends to the outside of the limiting strip 1. The connector 9 is fixed to the end of the suction pipe 8.

[0024] Specifically, the suction pipe 8 is connected to the negative pressure device through the connector 9. The negative pressure device works by suctioning air from the suction pipe 8 to the adsorption plate 7. The adsorption plate 7 is then firmly attached to the bottom of the base pad 4, which can prevent the sound-absorbing felt from shifting and improve the relative stability of the sound-absorbing felt.

[0025] See Figure 3 Furthermore, a connecting sleeve 10 is fixedly connected to the end of the retainer 6. The connecting sleeve 10 is sleeved on the outer surface of the suction pipe 8. A mounting bracket 11 is fixedly connected to the outer surface of the retainer 6. A mounting pin 12 is connected through the inside of the mounting bracket 11. The mounting bracket 11 is in contact with the limiting strip 1. The retainer 6 is fixedly connected to the limiting strip 1 through the mounting bracket 11 and the mounting pin 12. The suction pipe 8 is fixedly connected to the retainer 6 through the connecting sleeve 10.

[0026] Specifically, the retainer 6 is fixed to the limit strip 1 by the mounting bracket 11 and the mounting pin 12. The retainer 6, together with the connecting sleeve 10, limits and fixes the air extraction pipe 8, which can prevent the air extraction pipe 8 from falling off.

[0027] Example 2

[0028] See Figure 4 Furthermore, based on Embodiment 1, the top surface of the felt body 2 is bonded with a first connecting pad 13, and the bottom surface of the protective pad 3 is bonded with a second connecting pad 14. The first connecting pad 13 and the second connecting pad 14 have the same thickness. The outer surface of the first connecting pad 13 is fixedly connected with multiple connecting protrusions 15, and the interior of the second connecting pad 14 is provided with a connecting groove 16 that matches the connecting protrusions 15.

[0029] Specifically, the connecting protrusion 15 on the surface of the first connecting pad 13 is inserted into the connecting groove 16 inside the second connecting pad 14. The engagement of the connecting protrusion 15 and the connecting groove 16 can limit the connection between the felt body 2 and the protective pad 3, and can prevent misalignment inside the sound-absorbing felt.

[0030] It should be noted that this utility model is an engine compartment sound-absorbing felt. In use, the felt body 2, the protective pad 3, and the base pad 4 constitute the main body of the entire engine compartment sound-absorbing felt. The connecting protrusion 15 on the surface of the first connecting pad 13 is inserted into the connecting groove 16 inside the second connecting pad 14. The engagement of the connecting protrusion 15 and the connecting groove 16 can limit the connection between the felt body 2 and the protective pad 3, preventing misalignment inside the sound-absorbing felt. The retainer 6 is fixed to the limiting strip 1 through the mounting bracket 11 and the mounting pin 12. The retainer 6, together with the connecting sleeve 10, limits and fixes the suction pipe 8, preventing the suction pipe 8 from falling off. The suction pipe 8 is connected to the negative pressure device through the connector 9. The negative pressure device works by suctioning air from the suction plate 7 through the suction pipe 8. The suction plate 7 is tightly adhered to the bottom of the base pad 4, preventing the sound-absorbing felt from shifting and improving the relative stability of the sound-absorbing felt placement.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An engine compartment sound-absorbing felt, comprising a limiting strip (1) and a felt body (2), characterized in that: The felt body (2) is located inside the limiting strip (1). A protective pad (3) is provided above the felt body (2), and a base pad (4) is provided below the felt body (2). The top surface of the protective pad (3) extends to the outside of the limiting strip (1). The bottom surface of the base pad (4) is flush with the bottom surface of the limiting strip (1). An air extraction and adsorption structure (5) is connected between the limiting strip (1) and the base pad (4).

2. The engine compartment sound-absorbing felt according to claim 1, characterized in that: The suction adsorption structure (5) includes a retainer (6), an adsorption plate (7), a suction pipe (8), and a connector (9). The retainer (6) is located on the outside of the limiting strip (1). The adsorption plate (7) is fixed to the bottom of the base pad (4). One end of the suction pipe (8) is connected to the adsorption plate (7), and the other end of the suction pipe (8) extends to the outside of the limiting strip (1). The connector (9) is fixed at the end of the suction pipe (8).

3. The engine compartment sound-absorbing felt according to claim 2, characterized in that: A connecting sleeve (10) is fixedly connected to the end of the retainer (6). The connecting sleeve (10) is sleeved on the outer surface of the air extraction pipe (8). A mounting bracket (11) is fixedly connected to the outer surface of the retainer (6). A mounting pin (12) is connected through the inside of the mounting bracket (11), and the mounting bracket (11) is in contact with the limiting strip (1).

4. The engine compartment sound-absorbing felt according to claim 3, characterized in that: The retainer (6) is fixedly connected to the limiting strip (1) via the mounting bracket (11) and the mounting pin (12), and the air extraction pipe (8) is fixedly connected to the retainer (6) via the connecting sleeve (10).

5. The engine compartment sound-absorbing felt according to claim 1, characterized in that: The top surface of the felt body (2) is bonded with a first connecting pad (13), and the bottom surface of the protective pad (3) is bonded with a second connecting pad (14). The first connecting pad (13) and the second connecting pad (14) have the same thickness.

6. The engine compartment sound-absorbing felt according to claim 5, characterized in that: The outer surface of the first connecting pad (13) is fixedly connected with multiple connecting protrusions (15), and the interior of the second connecting pad (14) is provided with a connecting groove (16) that matches the connecting protrusions (15).

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