Sound-absorbing cotton for automobile door panel

Abstract

The utility model discloses automobile door panel sound-absorbing cotton which comprises an automobile door panel, a containing groove is formed in the inner side of the automobile door panel, a sound-absorbing panel is arranged on the inner side of the containing groove, a sealing cover plate is fixedly arranged on one side of the sound-absorbing panel, a fixing piece is arranged above the sealing cover plate, and a rubber strip plate is fixedly arranged on the back face of the sound-absorbing panel. Sound-absorbing cotton is fixedly arranged in the sound-absorbing plate, and a vacuum cavity is formed between the sound-absorbing cotton; through the synergistic effect of the connecting plate, the fixed rod, the movable seat, the rotating rod and the fixed clamping jaw, the sound absorption plate can smoothly move and be accurately positioned on the inner wall of the vehicle door plate, the angle of the rotating rod is flexibly adjusted, the fixed clamping jaw can be easily inserted into a notch in the fixed rod, the position of the connecting plate is locked, and the sound absorption plate is fixed. Therefore, it is ensured that the acoustic panel is stably attached to the inner wall of the vehicle door panel, and loosening or falling caused by vibration or bumping is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a sound-absorbing cotton for an automobile door panel. Background Art

[0002] Car door panel sound-absorbing cotton is a sound insulation material designed specifically for car door panels. It aims to reduce the impact of external noise on the interior environment of the car and improve driving and riding comfort. It effectively reduces wind noise, road noise and engine noise by absorbing and isolating sound, providing passengers with a quieter riding space.

[0003] Some existing car door panel sound-absorbing cotton is pasted, which is prone to aging and weakening of the adhesive layer due to long-term use, frequent opening and closing of car doors and external environmental factors (such as temperature changes, humidity, etc.), which in turn causes the sound-absorbing cotton to loosen or fall off, affecting the sound insulation effect and the integrity of the door panel structure; in addition, the fixing effect of the sound-absorbing cotton will be greatly reduced when encountering collisions or severe vibrations, and it may not be able to effectively isolate noise. Utility Model Content

[0004] The purpose of the present invention is to provide a car door panel sound-absorbing cotton in order to solve the problems mentioned in the above background.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a car door panel sound-absorbing cotton, comprising: a car door panel, an installation groove is opened on the inner side of the car door panel, a sound-absorbing panel is arranged inside the installation groove, a sealing cover plate is fixedly arranged on one side of the sound-absorbing panel, a fixing part is arranged above the sealing cover plate, a rubber strip plate is fixedly arranged on the back side of the sound-absorbing panel, sound-absorbing cotton is fixedly arranged inside the sound-absorbing panel, and a vacuum cavity is opened between the sound-absorbing cottons.

[0006] As a further solution of the present invention: the fixing part includes a connecting plate fixedly arranged on the side of the sealing cover plate, a connecting groove is opened in the middle of the connecting plate, a fixing rod is fixedly arranged on one side of the door panel, a movable seat is fixedly arranged on one side of the fixed rod, a first rotating rod is rotatably arranged on one side of the movable seat, a second rotating rod is rotatably arranged on one side of the first rotating rod, and a fixed claw is rotatably arranged on the other side of the second rotating rod.

[0007] As a further solution of the present invention: a docking plug plate is fixedly provided on the left side of the sound absorbing panel, a fixing hole is provided on the surface of the docking plug plate, a docking slot plate is fixedly provided on the right side of the sound absorbing panel, a card slot is provided on the inner side of the docking slot plate, and an insertion rod is screwed on the top of the docking slot plate.

[0008] As a further solution of the present invention: multiple groups of sound-absorbing panels can be arranged inside the placement groove, multiple groups of sound-absorbing cotton can be arranged inside the sound-absorbing panel, and a vacuum cavity with a certain space is reserved between the sound-absorbing cotton. The rubber strip plate can make the sound-absorbing panel and the door panel fit tightly. The arrangement of multiple groups of sound-absorbing cotton and the vacuum cavity can effectively slow down the transmission of external noise into the interior of the vehicle through solid media.

[0009] As a further solution of the present invention: multiple groups of fixing parts are fixedly provided on the upper and lower sides of the sound-absorbing panel, the size of the connecting groove is adapted to the size of the fixing rod, so that the sound-absorbing panel is conveniently fixed to the inner wall of the vehicle door panel, the first rotating rod, the second rotating rod and the fixing claw constitute a group of movable claws, and a notch is provided on one side of the fixing rod to adapt to the size of the fixing claw. The movable claw is rotated at an angle so that the fixing claw is inserted into the notch provided on one side of the fixing rod, thereby limiting the sliding of the connecting plate on the fixing rod, so that the sound-absorbing panel is further stably installed on the inner wall of the vehicle door panel. The provision of the movable claw can quickly disassemble and install the sound-absorbing panel.

[0010] As a further solution of the present invention: the size of the docking plug plate is adapted to the size of the docking slot plate. When the docking plug plate is connected to the docking slot plate, the insertion rod passes through the fixing hole opened on the surface of the docking plug plate, so that the two groups of sound absorbing panels are tightly connected together.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the present invention, the sound absorbing panel can move smoothly and be precisely positioned on the inner wall of the door panel through the coordinated action of the connecting plate, the fixing rod, the movable seat, the rotating rod and the fixing claws. By flexibly adjusting the angle of the rotating rod, the fixing claws can be easily inserted into the notches on the fixing rod to lock the position of the connecting plate, thereby ensuring that the sound absorbing panel is stably fitted to the inner wall of the door panel and avoiding loosening or falling off due to vibration or bumps.

[0013] By installing docking plugs and docking slots on the left and right sides of the sound-absorbing panels, multiple sound-absorbing panels can be conveniently and tightly connected together. This splicing mechanism not only makes the installation of the sound-absorbing panels more flexible and convenient, but also allows the number and position of the sound-absorbing panels to be adjusted according to actual needs to achieve the best sound insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the automobile door panel sound-absorbing cotton described in the utility model;

[0015] Figure 2 This is a structural schematic diagram of the front side of the sound-absorbing board in the sound-absorbing cotton of a car door panel described in the utility model;

[0016] Figure 3 This is a structural schematic diagram of the back side of the sound-absorbing board in the automobile door panel sound-absorbing cotton described in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the interior of the sound-absorbing panel in the sound-absorbing cotton of a car door panel described in the utility model;

[0018] Figure 5 It is a structural schematic diagram of a fixing part in the sound-absorbing cotton of an automobile door panel described in the utility model.

[0019] In the figure: 1. Door panel; 2. Mounting groove; 3. Sound-absorbing panel; 4. Sealing cover plate; 5. Fixing part; 51. Connecting plate; 52. Connecting groove; 53. Fixing rod; 54. Movable seat; 55. First rotating rod; 56. Second rotating rod; 57. Fixing claw; 6. Rubber strip plate; 7. Sound-absorbing cotton; 8. Vacuum chamber; 9. Docking plug plate; 10. Fixing hole; 11. Docking slot plate; 12. Slot; 13. Insertion rod. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] 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 directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or connected in an integral manner; they can be mechanically connected or electrically connected; they can be directly connected, indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The following describes the embodiments of the present invention based on its overall structure.

[0022] Reference Figures 1 to 5 In an embodiment of the utility model, a car door panel sound-absorbing cotton comprises: a door panel 1, an installation groove 2 is opened on the inner side of the door panel 1 for installing a sound-absorbing component, and a sound-absorbing panel 3 is arranged inside the installation groove 2, which is the core part of the sound insulation system, which can effectively absorb and isolate external noise. A fixing part 5 is provided above the sealing cover plate 4 for firmly mounting the sound-absorbing panel 3 on the door panel 1, and a rubber strip plate 6 is fixedly provided on the back of the sound-absorbing panel 3. The softness and stickiness of the rubber strip plate 6 enable the sound-absorbing panel 3 to fit tightly on the door panel 1, further improving the sound insulation effect. In addition, sound-absorbing cotton 7 is fixedly arranged inside the sound-absorbing panel 3, and a vacuum cavity 8 is opened between the sound-absorbing cotton 7. This combination design of multi-layer sound-absorbing cotton and vacuum cavity can significantly reduce the transmission of external noise.

[0023] Multiple sets of fixing parts 5 are fixed on the upper and lower sides of the sound-absorbing panel 3 to ensure that it is firmly installed on the vehicle door panel 1. The size of the connecting groove 52 is adapted to the size of the fixing rod 53, so that the connecting plate 51 can move smoothly along the fixing rod 53 and be accurately positioned. During the installation process, the angles of the first rotating rod 55 and the second rotating rod 56 are first adjusted so that the fixing claws 57 are in the open state. Then, the connecting plate 51 is moved to the desired position along the fixing rod 53. Next, the angle is rotated by combining the movable claws so that the fixing claws 57 are inserted into the notch opened on one side of the fixing rod 53. In this way, the connecting plate 51 is locked on the fixing rod 53, and the sound-absorbing panel 3 is stably installed on the inner wall of the vehicle door panel 1.

[0024] The disassembly process is the opposite of the installation process. It is only necessary to rotate the fixed claw 57 in the opposite direction through the movable claw to make it disengage from the notch of the fixed rod 53. This design allows the sound absorbing panel 3 to be quickly disassembled and installed, and is convenient for maintenance and replacement.

[0025] When two or more sound absorbing panels 3 need to be spliced ​​together, first ensure that the size of the docking plug board 9 matches the size of the docking groove board 11, and then insert the docking plug board 9 into the docking groove board 11 until they are fully fitted together.

[0026] Next, rotate the insertion rod 13 so that it passes through the fixing hole 10 on the surface of the docking plug plate 9, and the threaded part of the insertion rod 13 cooperates with the screw hole above the docking slot plate 11. By rotating the insertion rod 13, it can be tightened and fixed between the docking plug plate 9 and the docking slot plate 11. In this way, the two groups of sound-absorbing panels 3 are tightly connected together. Through this splicing mechanism, multiple sound-absorbing panels 3 can be flexibly combined according to actual needs to achieve the best sound insulation effect. At the same time, this splicing method also facilitates the disassembly and replacement of a single sound-absorbing panel 3, which facilitates the maintenance and upgrading of the sound insulation system.

[0027] The working principle of this utility model is:

[0028] A sound-absorbing panel 3 is installed in the placement groove 2. As the main part of the sound insulation system, it plays a vital role. In order to maintain the airtightness and sound insulation performance of the sound-absorbing component, one side of the sound-absorbing panel 3 is connected to a sealing cover plate 4 by fastening means.

[0029] In order to achieve a stable installation of the sound absorbing panel 3 on the inner wall of the door panel 1, a fixing mechanism is designed. This mechanism includes a connecting plate 51, a fixing rod 53, a movable seat 54, a rotating rod and a fixing claw 57. The connecting plate 51 is fixedly set on the side of the sealing cover plate 4, and the connecting groove 52 thereon is adapted to the fixing rod 53 on the door panel 1, so that the connecting plate 51 can move smoothly along the fixing rod 53. The movable seat is fixed to one side of the fixing rod 53, on which a rotatable rotating rod is assembled, and the other end of the rotating rod is connected to the fixing claw 57. By flexibly adjusting the angle of the rotating rod, we can easily insert the fixing claw 57 into the preset notch on the fixing rod 53, thereby locking the position of the connecting plate 51 and ensuring that the sound absorbing panel 3 is stably attached to the inner wall of the door panel 1;

[0030] A rubber strip 6 is attached to the back of the sound-absorbing panel 3. This design not only enhances the fit between the sound-absorbing panel 3 and the door panel 1, but also further improves the sound insulation effect. The interior of the sound-absorbing panel 3 is filled with multiple layers of sound-absorbing cotton 7, and vacuum cavities 8 are reserved between the sound-absorbing cotton 7. This combination of multiple layers of sound-absorbing cotton 7 and vacuum cavities 8 can significantly reduce the transmission of external noise into the vehicle through solid media;

[0031] In addition, in order to meet the needs of different car models or sound insulation, we have also designed a splicing mechanism for the sound-absorbing panels 3. On the left and right sides of the sound-absorbing panels 3, we installed docking plug plates 9 and docking slot plates 11 respectively. The sizes of the two are adapted. When the docking plug plates 9 are inserted into the docking slot plates 11, the insertion rods 13 will pass through the fixing holes 10 on the docking plug plates 9, tightly connecting the two sets of sound-absorbing panels 3 together. This splicing mechanism allows for flexible combination of multiple sound-absorbing panels 3 according to actual needs to achieve the best sound insulation effect.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A car door panel sound-absorbing cotton, characterized in that: include: A vehicle door panel (1) is provided with a placement groove (2) on the inner side of the vehicle door panel (1), a sound absorbing panel (3) is provided on the inner side of the placement groove (2), a sealing cover plate (4) is fixedly provided on one side of the sound absorbing panel (3), a fixing member (5) is provided above the sealing cover plate (4), a rubber strip plate (6) is fixedly provided on the back side of the sound absorbing panel (3), sound absorbing cotton (7) is fixedly provided inside the sound absorbing panel (3), and a vacuum cavity (8) is provided between the sound absorbing cotton (7).

2. The automobile door panel sound-absorbing cotton according to claim 1, characterized in that: The fixing member (5) comprises a connecting plate (51) fixedly arranged on the side of the sealing cover plate (4), a connecting groove (52) is provided in the middle of the connecting plate (51), a fixing rod (53) is fixedly arranged on one side of the door panel (1), a movable seat (54) is fixedly arranged on one side of the fixing rod (53), a first rotating rod (55) is rotatably arranged on one side of the movable seat (54), a second rotating rod (56) is rotatably arranged on one side of the first rotating rod (55), and a fixing claw (57) is rotatably arranged on the other side of the second rotating rod (56).

3. The automobile door panel sound-absorbing cotton according to claim 1, characterized in that: A docking plug plate (9) is fixedly provided on the left side of the sound absorbing panel (3), and a fixing hole (10) is provided on the surface of the docking plug plate (9). A docking slot plate (11) is fixedly provided on the right side of the sound absorbing panel (3), and a clamping slot (12) is provided on the inner side of the docking slot plate (11). An inserting rod (13) is screwed on the top of the docking slot plate (11).

4. The automobile door panel sound-absorbing cotton according to claim 1, characterized in that: A plurality of groups of the sound-absorbing panels (3) can be arranged inside the placement groove (2), and a plurality of groups of the sound-absorbing cotton (7) can be arranged inside the sound-absorbing panels (3). A vacuum cavity (8) with a certain space is reserved between the sound-absorbing cotton (7). The rubber strip plate (6) can make the sound-absorbing panels (3) and the door panel (1) fit tightly together. The arrangement of the plurality of groups of the sound-absorbing cotton (7) and the vacuum cavity (8) can effectively slow down the transmission of external noise into the interior of the vehicle body through the solid medium.

5. The automobile door panel sound-absorbing cotton according to claim 2, characterized in that: The sound absorbing panel (3) is fixed with a plurality of sets of fixing members (5) on both upper and lower sides. The size of the connecting groove (52) matches the size of the fixing rod (53), so that the sound absorbing panel (3) is conveniently fixed to the inner wall of the vehicle door panel (1). The first rotating rod (55), the second rotating rod (56) and the fixing claw (57) constitute a set of movable claws. A notch is provided on one side of the fixing rod (53) and matches the size of the fixing claw (57). The fixing claw (57) is inserted into the notch provided on one side of the fixing rod (53) by rotating the movable claw at an angle, thereby limiting the sliding of the connecting plate (51) on the fixing rod (53) and making the sound absorbing panel (3) further stably installed on the inner wall of the vehicle door panel (1). The provision of the movable claw allows the sound absorbing panel (3) to be quickly disassembled and installed.

6. The automobile door panel sound-absorbing cotton according to claim 3, characterized in that: The size of the docking plug plate (9) is adapted to the size of the docking slot plate (11). When the docking plug plate (9) is connected to the docking slot plate (11), the insertion rod (13) passes through the fixing hole (10) provided on the surface of the docking plug plate (9), so that the two groups of the sound absorbing panels (3) are tightly connected together.

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