A sound insulation rubber block structure for avoiding motion interference

Abstract

The present invention discloses a sound insulation rubber block structure for avoiding motion interference, wherein a movable sheet metal is arranged on the outer side of the inner sheet metal of the A-pillar, a foaming chamber is arranged between the inner sheet metal of the A-pillar and the movable sheet metal, a mounting frame is arranged on the inner sheet metal of the A-pillar in the foaming chamber, a first foaming groove is arranged on one side of the mounting frame, a second foaming groove is arranged on the other side of the mounting frame, a first foaming glue is arranged in the first foaming groove, a second foaming glue is arranged in the second foaming groove, a foaming groove is arranged in the middle of the mounting frame, and a main foaming glue is arranged in the foaming groove; the present invention limits the foaming expansion of the foaming glue through three groups of different foaming grooves, and cooperates with three groups of independent foaming glue structures to achieve multi-directional foaming blocking, thereby achieving the blocking of the motion interference cavity, and well achieving a balance between product performance and cost, which can not only achieve the effect of improving NVH, but also achieve the effect of reducing costs and simplifying the process.

Description

Technical Field

[0001] The present invention relates to the technical field of sound insulation rubber blocks, and in particular to a sound insulation rubber block structure for avoiding motion interference. Background Art

[0002] Sound insulation rubber block is a rubber sheet that can block the conduction of sound. The product has a porous structure and a very low density. It is generally made of foamed rubber and is used as a wall partition in various vehicles and buildings to play a role in sound insulation and noise reduction.

[0003] The existing automobile A-pillar cavity sealing rubber block has a single foaming direction. The large outer cavity of the A-pillar needs to avoid interference with the mechanical movement of the sheet metal, and the interfering part has to be cut off, which leads to poor air tightness of the upper body and affects the NVH performance of the body, or the parts are installed on the side outer panel, which increases the manufacturing cost. Therefore, the present invention proposes a sound insulation rubber block structure that avoids movement interference to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose a sound insulation rubber block structure for avoiding motion interference. The sound insulation rubber block structure for avoiding motion interference can limit the foaming expansion of the foamed rubber by three groups of different foaming grooves, and can realize multi-directional foaming and blocking in conjunction with three groups of independent foamed rubber structures, thereby achieving the blocking of the motion interference cavity, and achieving a good balance between product performance and cost, which can not only achieve the effect of improving NVH, but also achieve the effect of reducing costs and simplifying the process.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a sound insulation rubber block structure for avoiding motion interference, including a sheet metal mechanism and a foaming mechanism, the sheet metal mechanism includes an A-pillar inner sheet metal, a movable sheet metal and a foaming bin, a movable sheet metal is provided on the outer side of the A-pillar inner sheet metal, a foaming bin is provided between the A-pillar inner sheet metal and the movable sheet metal, the foaming mechanism includes a mounting frame, a first foaming groove, a first foam glue, a second foaming groove, a second foam glue, a foaming groove and a main foam glue, a mounting frame is provided on the A-pillar inner sheet metal in the foaming bin, a first foaming groove is provided on one side of the mounting frame, a second foaming groove is provided on the other side of the mounting frame, a first foam glue is provided in the first foaming groove, a second foam glue is provided in the second foaming groove, a foaming groove is provided in the middle of the mounting frame, and a main foam glue is provided in the foaming groove.

[0006] A further improvement is that mounting ears are provided on both sides of the mounting frame, mounting holes are provided on the mounting ears, and the mounting frame is mounted on the outer surface of the inner sheet metal of the A-pillar in the foaming chamber through fixing screws in the mounting holes.

[0007] A further improvement is that the first foaming groove is opened upward, and when the first foaming glue foams, it is restricted by the first foaming groove to foam and expand upward.

[0008] A further improvement is that: the second foaming groove is opened to the front side, and when the second foaming glue foams, it is restricted by the second foaming groove to foam and expand toward the front side.

[0009] A further improvement is that the main foam is fixedly connected to the foaming groove and extends and tilts toward the upper end and the rear end, the rear end of the main foam is close to the sheet metal surface inside the A-pillar, and the main foam expands without restriction when foaming.

[0010] A further improvement is that a reinforcing column is provided on the inner sheet metal of the A-pillar in front of the second foaming groove, and the second foaming glue wraps the reinforcing column after foaming and expansion.

[0011] A further improvement is that the installation frame is made of nylon, and the first foam glue, the second foam glue and the main foam glue are high molecular foam materials.

[0012] The beneficial effects of the present invention are as follows: the present invention limits the foaming expansion of the foaming glue through three groups of different foaming grooves, and cooperates with three groups of independent foaming glue structures to achieve multi-directional foaming blocking, thereby achieving the blocking of the motion interference cavity, and achieving a good balance between product performance and cost, which can not only achieve the effect of improving NVH, but also achieve the effect of reducing costs and simplifying the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 This is a cross-sectional view of the installation structure of the present invention.

[0015] Figure 2 It is a front schematic diagram of the foaming mechanism of the present invention.

[0016] Figure 3 It is a schematic side view of the foaming mechanism of the present invention.

[0017] Among them: 1. Sheet metal inside the A-pillar; 2. Movable sheet metal; 3. Foaming chamber; 4. Mounting frame; 5. First foaming groove; 6. First foam glue; 7. Second foaming groove; 8. Second foam glue; 9. Foaming groove; 10. Main foam glue; 11. Mounting ear; 12. Mounting hole; 13. Fixing screw; 14. Reinforcement column. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] according to Figure 1 , 2 As shown in Figure 3, this embodiment provides a sound insulation rubber block structure for avoiding motion interference, including a sheet metal mechanism and a foaming mechanism, the sheet metal mechanism includes an A-pillar inner sheet metal 1, a movable sheet metal 2 and a foaming bin 3, a movable sheet metal 2 is provided on the outer side of the A-pillar inner sheet metal 1, a foaming bin 3 is provided between the A-pillar inner sheet metal 1 and the movable sheet metal 2, the foaming mechanism includes a mounting frame 4, a first foaming groove 5, a first foam glue 6, a second foaming groove 7, a second foam glue 8, a foaming groove 9 and a main foam glue 10, a mounting frame 4 is provided on the A-pillar inner sheet metal 1 in the foaming bin 3, a first foaming groove 5 is provided on one side of the mounting frame 4, a second foaming groove 7 is provided on the other side of the mounting frame 4, a first foaming groove 5 is provided in the first foaming groove 6, a second foaming groove 7 is provided in the second foaming groove 8, a foaming groove 9 is provided in the middle of the mounting frame 4, and a main foam glue 10 is provided in the foaming groove 9.

[0022] Mounting ears 11 are provided on both sides of the mounting frame 4 , and mounting holes 12 are provided on the mounting ears 11 . The mounting frame 4 is mounted on the outer surface of the inner sheet metal 1 of the A-pillar in the foaming chamber 3 through fixing screws 13 in the mounting holes 12 .

[0023] The first foaming groove 5 is opened upward, and the first foaming glue 6 is restricted by the first foaming groove 5 to expand upward when foaming.

[0024] The second foaming groove 7 is opened to the front side, and the second foaming glue 8 is restricted by the second foaming groove 7 to foam and expand toward the front side when foaming.

[0025] The main foam glue 10 is fixedly connected to the foaming groove 9 and extends and tilts toward the upper end and the rear end. The rear end of the main foam glue 10 is close to the surface of the sheet metal 1 inside the A-pillar. The main foam glue 10 expands without restriction when foaming.

[0026] A reinforcing column 14 is provided on the A-pillar inner sheet metal 1 in front of the second foaming groove 7 , and the second foam glue 8 wraps the reinforcing column 14 after foaming and expansion.

[0027] The installation frame 4 is made of nylon, and the first foam glue 6, the second foam glue 8 and the main foam glue 10 are polymer foam materials.

[0028] The sound insulation rubber block structure for avoiding motion interference limits the foaming expansion of the foamed rubber through three groups of different foaming grooves. With the three groups of independent foamed rubber structures, multi-directional foaming and blocking can be achieved, thereby blocking the motion interference cavity. It is a good balance between product performance and cost, which can not only achieve the effect of improving NVH, but also reduce costs and simplify the process.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sound insulation rubber block structure for avoiding motion interference, characterized in that: The invention comprises a sheet metal mechanism and a foaming mechanism, wherein the sheet metal mechanism comprises an A-pillar inner sheet metal (1), a movable sheet metal (2) and a foaming chamber (3), wherein the movable sheet metal (2) is arranged on the outer side of the A-pillar inner sheet metal (1), and a foaming chamber (3) is arranged between the A-pillar inner sheet metal (1) and the movable sheet metal (2), wherein the foaming mechanism comprises a mounting frame (4), a first foaming groove (5), a first foaming glue (6), a second foaming groove (7), a second foaming glue (8), a foaming groove (9) and a main foaming glue (10), wherein a mounting frame (4) is arranged on the A-pillar inner sheet metal (1) in the foaming chamber (3), wherein the mounting frame (4) is arranged on one side of the mounting frame (4), and wherein the second foaming groove (7) is arranged on the other side of the mounting frame (4), wherein a first foaming glue (6) is arranged in the first foaming groove (5), and wherein the first foaming groove (5) is opened upward, and when the first foaming glue (6) is foamed, the first foaming groove (5) is pressed against the first foaming groove (6) and the second foaming groove (7) is pressed against the first foaming groove (6). 5) to expand upwards under the restriction of foaming, a second foaming glue (8) is provided in the second foaming groove (7), the second foaming groove (7) is opened to the front side, and the second foaming glue (8) is restricted by the second foaming groove (7) to expand toward the front side when foaming, a foaming groove (9) is provided in the middle of the mounting frame (4), a main foaming glue (10) is provided in the foaming groove (9), the main foaming glue (10) is fixedly connected to the foaming groove (9) and extends and tilts toward the upper end and the rear end, the rear end of the main foaming glue (10) is close to the surface of the inner sheet metal (1) of the A-pillar, and the main foaming glue (10) expands without restriction when foaming, mounting ears (11) are provided on both sides of the mounting frame (4), and mounting holes (12) are provided on the mounting ears (11), and the mounting frame (4) is mounted on the outer surface of the inner sheet metal (1) of the A-pillar in the foaming chamber (3) through fixing screws (13) in the mounting holes (12).

2. The sound insulation rubber block structure for avoiding motion interference according to claim 1 is characterized by: A reinforcing column (14) is provided on the inner sheet metal (1) of the A-pillar in front of the second foaming groove (7), and the second foaming glue (8) wraps the reinforcing column (14) after foaming and expansion.

3. The sound insulation rubber block structure for avoiding motion interference according to claim 1 is characterized in that: The installation frame (4) is made of nylon material, and the first foam glue (6), the second foam glue (8) and the main foam glue (10) are polymer foam materials.

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