Waterproof sound insulation structure for vehicle

Abstract

The utility model relates to the technical field of automobile waterproof sound insulation structures, and discloses an automobile waterproof sound insulation structure which comprises an automobile metal plate base, a waterproof sound insulation mechanism is arranged at the bottom of the automobile metal plate base, a closing mechanism is arranged in the middle of the automobile metal plate base, and the waterproof sound insulation mechanism comprises a waterproof assembly and a sound insulation assembly. The waterproof assembly is arranged at the bottom of the automobile metal plate base, and the sound insulation assembly is arranged in the automobile metal plate base. According to the waterproof and sound insulation structure for the automobile, through the arranged waterproof and sound insulation mechanism, the soft sleeve shell is tightly attached to the clamping protrusion and the bottom of the automobile metal plate base, waterproof treatment on the bottom of the automobile metal plate base is achieved, and the corrosion resistance of the automobile metal plate base is improved; and the closing mechanism is matched with the injection molding material, so that the injection molding material is distributed more uniformly after expanding in the automobile sheet metal base, and the noise blocking effect is improved after the injection molding material is filled into the automobile sheet metal base.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle waterproof and sound-insulating structures, in particular to a vehicle waterproof and sound-insulating structure. Background Art

[0002] With the development of the automobile industry, customers' requirements for automobiles are no longer simply about power and handling, but are increasingly demanding on the "safety, comfort, and environmental protection" of cars. Noise, vibration, and humidity are one of the important reasons for the decline in comfort, so they need to be controlled.

[0003] At present, automotive engineering technicians have upgraded the sound and vibration insulation technology of vehicle shock absorbers, sound insulation pads, interior sound insulation, vibration insulation carpets, body-pasted glass, and roofs, which effectively improved the vibration and noise in the car cabin. However, the cavity channel in the body structure will also generate and transmit vibration noise. This technical problem has never been well solved. The noise is transmitted to the passenger compartment through the body sheet metal cavity, causing discomfort to the passengers.

[0004] In the prior art, the purpose of reducing noise is achieved by using the heat expansion of the car body cavity sound insulation block products during the painting process, thereby blocking the mutual intercommunication of air. However, the existing sound insulation blocks still have the disadvantages of poor sound insulation effect and lack of waterproofness. Utility Model Content

[0005] The purpose of the utility model is to provide a vehicle waterproof and sound-insulating structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a vehicle waterproof and soundproof structure, including a car sheet metal base, a waterproof and soundproof mechanism is arranged at the bottom of the car sheet metal base, and a closing mechanism is arranged in the middle of the car sheet metal base.

[0007] The waterproof and soundproofing mechanism comprises a waterproof component and a soundproofing component. The waterproof component is arranged at the bottom of the automobile sheet metal base, and the soundproofing component is arranged inside the automobile sheet metal base.

[0008] The closing mechanism includes an injection molding component, a closing component and a positioning component. The injection molding component is arranged in the middle of the automobile sheet metal base. The injection plastic poured from the injection molding component fixes the automobile sheet metal base and the waterproof component. The closing component is arranged on the top of the injection molding component, and the positioning component is arranged on the outside of the closing component.

[0009] Preferably, the waterproof component includes a soft shell, which is sleeved on the outer side of the bottom of the automobile sheet metal base, and the inner side of the soft shell is in contact with the bottom of the automobile sheet metal base.

[0010] Preferably, a clamping protrusion is fixedly connected to the bottom of the soft cover shell, and the clamping protrusion is clamped to the bottom of the automobile sheet metal base, and the outer side of the clamping protrusion is in contact with the bottom of the automobile sheet metal base;

[0011] The injection molding assembly comprises an injection molding box, which is fixedly connected to the middle of the automobile sheet metal base, and a feed pipe opening is fixedly connected to the top of the injection molding box.

[0012] Preferably, the sound insulation component includes an injection plastic, a through hole is opened at the bottom of the automobile sheet metal base, the injection plastic is poured into the automobile sheet metal base from the feed pipe opening, and the injection plastic is in contact with the soft cover shell through the through hole.

[0013] Preferably, the closing component includes a closing cover, which is sleeved on the outer ring of the feed pipe opening, the bottom of the closing cover fits with the top of the injection molding box, and the bottom of the closing cover is fixedly connected with a sealed card block, which is sleeved on the inner ring of the feed pipe opening.

[0014] Preferably, the positioning assembly includes a metal sleeve block, which is sleeved on the outer ring of the closed cover, which is sleeved on the top of the injection molding box, which is fixedly connected with a magnetic block, which is magnetically connected to the magnetic block, and a disassembly and assembly paddle is fixedly connected to the top of the metal sleeve block.

[0015] Compared with the prior art, the utility model provides a vehicle waterproof and sound-insulating structure, which has the following beneficial effects:

[0016] 1. The waterproof and soundproof structure for the vehicle is provided with a waterproof and soundproof mechanism, and the soft cover shell and the clamping convex are arranged on the outer side of the bottom of the automobile sheet metal base. The soft cover shell and the clamping convex are closely fitted with the bottom of the automobile sheet metal base to complete the waterproof treatment of the bottom of the automobile sheet metal base, so that when the vehicle is assembled and used, the splashing water at the bottom will not cause corrosion to the bottom of the automobile sheet metal base, thereby increasing the corrosion resistance of the automobile sheet metal base;

[0017] The injection plastic is injected into the car sheet metal base through the injection molding process. After filling and foaming the cavity in the car sheet metal base, the conduction of the car sheet metal base to the external noise is reduced, and the internal noise when the vehicle is driving is reduced;

[0018] The injection plastic is filled in the car sheet metal base, so that water vapor cannot enter the car sheet metal base, and water vapor will not be generated inside the car sheet metal base due to alternating hot and cold, so that the inside of the car sheet metal base will not be corroded by water vapor, further increasing the waterproof and corrosion resistance of the car sheet metal base when in use.

[0019] 2. The vehicle waterproof and soundproof structure has a closing mechanism, and the magnetic block on the top of the injection molding box fixes the metal sleeve block to the top of the injection molding box through a magnetic reaction, so that the closing cover and the sealing card block can maintain their own positions to seal the top of the injection molding box, so that the injection plastic added to the automobile sheet metal base will not overflow upward through the feed pipe during the expansion process, and the injection plastic will be more evenly distributed inside the automobile sheet metal base after expansion, thereby increasing the noise blocking effect after the injection plastic is filled into the automobile sheet metal base. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0021] Figure 1 It is a front schematic diagram of the utility model;

[0022] Figure 2 This is an explosion diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the bottom of the automobile sheet metal base;

[0024] Figure 4 It is an exploded diagram of the closing mechanism part structure;

[0025] Figure 5 It is a schematic diagram of the coordination between the closing component and the positioning component;

[0026] Figure 6 It is a cross-sectional view of the partial structure of the closing mechanism.

[0027] In the figure: 1. Waterproof and soundproofing mechanism; 11. Waterproofing component; 1101. Soft cover shell; 1102. Boss; 12. Soundproofing component; 1201. Injection molding material; 1202. Through hole; 2. Closing mechanism; 21. Injection molding component; 2101. Injection molding box; 2102. Feed nozzle; 22. Closing component; 2201. Closing cover; 2202. Sealed block; 23. Positioning component; 2301. Metal cover block; 2302. Magnetic block; 2303. Disassembly and assembly paddle; 3. Automobile sheet metal base. DETAILED DESCRIPTION

[0028] 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.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The utility model provides a technical solution:

[0031] Embodiment 1: Combination Figures 1 to 4 and Figure 6 A vehicle waterproof and soundproofing structure comprises a vehicle sheet metal base 3, a waterproof and soundproofing mechanism 1 is arranged at the bottom of the vehicle sheet metal base 3, and a closing mechanism 2 is arranged in the middle of the vehicle sheet metal base 3.

[0032] The waterproof and soundproofing mechanism 1 comprises a waterproof component 11 and a soundproofing component 12 . The waterproof component 11 is arranged at the bottom of the automobile sheet metal base 3 , and the soundproofing component 12 is arranged inside the automobile sheet metal base 3 .

[0033] The waterproof component 11 includes a soft shell 1101, which is sleeved on the outer side of the bottom of the automobile sheet metal base 3, and the inner side of the soft shell 1101 is in contact with the bottom of the automobile sheet metal base 3. A clamping protrusion 1102 is fixedly connected to the bottom of the soft shell 1101, and the clamping protrusion 1102 is clamped on the bottom of the automobile sheet metal base 3, and the outer side of the clamping protrusion 1102 is in contact with the bottom of the automobile sheet metal base 3. The sound insulation component 12 includes an injection plastic 1201, and a through hole 1202 is provided at the bottom of the automobile sheet metal base 3. The injection plastic 1201 is poured into the automobile sheet metal base 3 from the feed nozzle 2102 described later, and the injection plastic 1201 contacts the soft shell 1101 through the through hole 1202.

[0034] Furthermore: after the injection plastic 1201 is filled into the automobile sheet metal base 3, it contacts the soft shell 1101 through the through hole 1202, and the soft shell 1101 is fixed to the bottom position of the automobile sheet metal base 3 by hot melting. No additional structure is required to fix the soft shell 1101. There is an oblique angle between the contact surface of the soft shell 1101 and the automobile sheet metal base 3, so that the automobile sheet metal base 3 can drain the moisture of the automobile sheet metal base 3 downward when in use, so that it will not stay on the outside of the soft shell 1101 for a long time.

[0035] Example 2: See Figures 1 to 6 , and on the basis of embodiment 1, further, the closing mechanism 2 includes an injection molding component 21, a closing component 22 and a positioning component 23, the injection molding component 21 is arranged in the middle of the automobile sheet metal base 3, the injection plastic 1201 poured from the injection molding component 21 fixes the automobile sheet metal base 3 and the waterproof component 11, the closing component 22 is arranged on the top of the injection molding component 21, and the positioning component 23 is arranged on the outside of the closing component 22.

[0036] The injection molding assembly 21 includes an injection molding box 2101, which is fixedly connected to the middle of the automobile sheet metal base 3, and a feed nozzle 2102 is fixedly connected to the top of the injection molding box 2101. The closing assembly 22 includes a closing cover 2201, which is sleeved on the outer ring of the feed nozzle 2102, and the bottom of the closing cover 2201 fits the top of the injection molding box 2101. A sealed block 2202 is fixedly connected to the bottom of the closing cover 2201, and the sealed block 2202 is sleeved on the inner ring of the feed nozzle 2102. The positioning assembly 23 includes a metal sleeve 2301, which is sleeved on the outer ring of the closing cover 2201, and the metal sleeve 2301 is sleeved on the top of the injection molding box 2101. A magnetic block 2302 is fixedly connected to the top of the injection molding box 2101, and the metal sleeve 2301 is magnetically connected to the magnetic block 2302. A disassembly and assembly paddle 2303 is fixedly connected to the top of the metal sleeve 2301. The bottom of the disassembly and assembly paddle 2303 is hollow and arranged on the top of the metal sleeve 2301, so that the staff can insert their fingers into the gap between the disassembly and assembly paddle 2303 and the metal sleeve 2301, and use the disassembly and assembly paddle 2303 as a fulcrum to plug, unplug and rotate the metal sleeve 2301.

[0037] Furthermore: the magnetic block 2302 on the top of the injection molding box 2101 fixes the metal sleeve block 2301 to the top of the injection molding box 2101 through magnetic attraction, so that the closing cover 2201 and the sealing block 2202 can maintain their own positions to seal the top of the injection molding box 2101, so that the injection plastic 1201 added to the automobile sheet metal base 3 will not overflow upward through the feed nozzle 2102 during the expansion process, and the injection plastic 1201 will be more evenly distributed after expansion inside the automobile sheet metal base 3, thereby increasing the noise blocking effect after the injection plastic 1201 is filled into the automobile sheet metal base 3.

[0038] In actual operation, when this device is used, when the injection molding material 1201 is filled and the feed nozzle 2102 needs to be closed, the staff first clamps the sealing block 2202 into the feed nozzle 2102, so that the closing cover 2201 is sleeved on the outer ring of the feed nozzle 2102 until the bottom of the closing cover 2201 is in contact with the top of the injection molding box 2101. Then the staff rotates the closing cover 2201 so that the groove on the outer ring is aligned with the magnetic block 2302. Then the staff clamps the metal sleeve block 2301 on the top of the injection molding box 2101, so that the magnetic block 2302 and the closing cover 2201 are clamped on the bottom of the metal sleeve block 2301. At this time, the magnetic block 2302 fixes the metal sleeve block 2301 through magnetic attraction, and the closing process of the feed nozzle 2102 is completed.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A vehicle waterproof and soundproof structure, comprising a vehicle sheet metal base (3), characterized in that: A waterproof and soundproofing mechanism (1) is disposed at the bottom of the automobile sheet metal base (3), and a closing mechanism (2) is disposed in the middle of the automobile sheet metal base (3); The waterproof and soundproofing mechanism (1) comprises a waterproof component (11) and a soundproofing component (12); the waterproof component (11) is arranged at the bottom of the automobile sheet metal base (3), and the soundproofing component (12) is arranged inside the automobile sheet metal base (3); The closing mechanism (2) comprises an injection molding component (21), a closing component (22) and a positioning component (23); the injection molding component (21) is arranged in the middle of the automobile sheet metal base (3); the injection plastic injected from the injection molding component (21) enables the automobile sheet metal base (3) to be fixedly connected to the waterproof component (11); the closing component (22) is arranged on the top of the injection molding component (21); and the positioning component (23) is arranged on the outside of the closing component (22).

2. A vehicle waterproof and sound-insulating structure according to claim 1, characterized in that: The waterproof component (11) comprises a soft shell (1101), wherein the soft shell (1101) is sleeved on the outer side of the bottom of the automobile sheet metal base (3), and the inner side of the soft shell (1101) is in contact with the bottom of the automobile sheet metal base (3).

3. A vehicle waterproof and sound-insulating structure according to claim 2, characterized in that: The bottom of the soft shell (1101) is fixedly connected with a clamping protrusion (1102), the clamping protrusion (1102) is clamped to the bottom of the automobile sheet metal base (3), and the outer side of the clamping protrusion (1102) is in contact with the bottom of the automobile sheet metal base (3); The injection molding assembly (21) comprises an injection molding box (2101), wherein the injection molding box (2101) is fixedly connected to the middle of the automobile sheet metal base (3), and a feed pipe opening (2102) is fixedly connected to the top of the injection molding box (2101).

4. A vehicle waterproof and sound-insulating structure according to claim 3, characterized in that: The sound insulation component (12) comprises an injection plastic (1201), a through hole (1202) is provided at the bottom of the automobile sheet metal base (3), the injection plastic (1201) is poured into the automobile sheet metal base (3) from the feed pipe opening (2102), and the injection plastic (1201) contacts the soft shell (1101) through the through hole (1202).

5. The vehicle waterproof and sound-insulating structure according to claim 3, characterized in that: The closing component (22) comprises a closing cover (2201), the closing cover (2201) is sleeved on the outer ring of the feed pipe opening (2102), the bottom of the closing cover (2201) is in contact with the top of the injection molding box (2101), and a sealing block (2202) is fixedly connected to the bottom of the closing cover (2201), and the sealing block (2202) is sleeved on the inner ring of the feed pipe opening (2102).

6. A vehicle waterproof and soundproof structure according to claim 5, characterized in that: The positioning assembly (23) comprises a metal sleeve block (2301), the metal sleeve block (2301) is sleeved on the outer ring of the closing cover (2201), the metal sleeve block (2301) is sleeved on the top of the injection molding box (2101), the top of the injection molding box (2101) is fixedly connected with a magnetic block (2302), the metal sleeve block (2301) is magnetically connected to the magnetic block (2302), and the top of the metal sleeve block (2301) is fixedly connected with a disassembly paddle (2303).

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