A luggage case sound deadening mat
By incorporating a waterproof layer and absorbent blocks into the sound insulation pad in the car trunk, the problem of liquid leakage and accumulation is solved, achieving improved rust prevention and safety while maintaining sound insulation and wear resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI TIANYI SAKURA AUTOMOBILE PARTS MANUFACTURING CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing car trunk sound insulation pads cannot effectively handle leaked liquids, leading to moisture accumulation that causes rust and corrosion, affecting the car's lifespan and safety.
It adopts a combination structure of polyurethane soft foam sound-absorbing layer, hot melt felt damping sound-absorbing cotton layer, sound insulation layer, moisture-proof layer, waterproof layer and water-absorbing block. The water-absorbing block is wrapped by the waterproof layer and the water-absorbing block is used to absorb liquid. Combined with reinforcement and protection mechanism, it ensures stable fixation and protection.
It effectively prevents liquid accumulation, rust and corrosion, and improves the lifespan and safety of automobiles, while maintaining sound insulation and possessing waterproof, dustproof and wear-resistant properties.
Smart Images
Figure CN224296778U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sound insulation pad technology, and relates to luggage, particularly a luggage sound insulation pad. Background Technology
[0002] A car trunk soundproofing mat is a sound-absorbing material installed inside a car's trunk to reduce interior noise and vibration, improving driving comfort. These mats are typically made of high-density rubber, foam materials, or composite materials, offering excellent sound absorption and vibration damping effects, effectively blocking noise from the road surface, engine, and exhaust system. Installing a trunk soundproofing mat not only reduces noise interference inside the car but also improves the sound quality of the audio system, enhancing the overall driving experience. Furthermore, high-quality soundproofing mats are moisture-proof, dust-proof, and wear-resistant, helping to protect the trunk structure and extend its lifespan. Overall, car trunk soundproofing mats are a practical and comfortable automotive accessory, highly favored by car owners.
[0003] However, some existing car trunk sound insulation mats cannot handle leaked liquids. If liquid is accidentally spilled inside the trunk, moisture may accumulate under the mat, leading to rust and corrosion, which can affect the car's lifespan and safety. Therefore, this problem needs to be solved. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a luggage compartment sound insulation mat. The technical problem this utility model aims to solve is that it cannot handle leaked liquids. If liquid is accidentally spilled inside the luggage compartment, moisture may accumulate under the mat, leading to rust and corrosion, which affects the lifespan and safety of the car.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A luggage sound insulation pad includes a polyurethane flexible foam sound-absorbing layer, a hot-melt felt damping sound-absorbing cotton layer on top of the polyurethane flexible foam sound-absorbing layer, a reinforcement mechanism for reinforcing the polyurethane flexible foam sound-absorbing layer at the bottom of the polyurethane flexible foam sound-absorbing layer, a sound insulation layer on top of the hot-melt felt damping sound-absorbing cotton layer, a moisture-proof layer on top of the sound insulation layer, a waterproof layer on top of the moisture-proof layer, a water-absorbing block inside the waterproof layer, and a protective mechanism for protecting the water-absorbing block on top of the waterproof layer. The water-absorbing block prevents liquid from accumulating under the pad.
[0007] As a further embodiment of this utility model, the reinforcement mechanism includes a plurality of first anti-slip blocks, all of which are fixedly connected to the polyurethane soft foam sound-absorbing layer, and the plurality of first anti-slip blocks are arranged in a square and uniform manner. The bottom of the polyurethane soft foam sound-absorbing layer is fixedly connected to a plurality of suction cups, which are also arranged in a square and uniform manner. The suction cups ensure that the sound insulation pad can be stably fixed.
[0008] As a further embodiment of this utility model, the protective mechanism includes four first hook and loop fasteners, all of which are fixedly connected to the top of the waterproof layer and are evenly arranged in a square shape. Each of the four first hook and loop fasteners is fitted with a second hook and loop fastener on top. The top of the four second hook and loop fasteners is fixedly connected to the same anti-wear layer. The top of the anti-wear layer is fixedly connected to a top layer, and the top of the top layer is fixedly connected to multiple second protective blocks. By setting the anti-wear layer, the water-absorbing blocks can be protected.
[0009] The beneficial effects of this utility model are as follows:
[0010] 1. This utility model employs a liquid-absorbing block technology to prevent liquid accumulation under the pad, effectively solving the problem of unmanageable leaked liquids. If liquid is accidentally spilled in the trunk, moisture may accumulate under the pad, leading to rust and corrosion, affecting the car's lifespan and safety. The sound insulation pad has a waterproof layer inside, with absorbent blocks within it. When liquid leaks, the absorbent blocks fully absorb the liquid, and the waterproof layer completely covers all four sides of the absorbent blocks, preventing leakage around them. An anti-wear layer is installed on top of the waterproof layer, connected to it via a second Velcro strap. This allows for flexible drainage options, allowing either the absorbent blocks or the entire sound insulation pad to be removed for drainage. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of a luggage sound insulation pad proposed in this utility model;
[0012] Figure 2 This is an exploded structural diagram of a luggage sound insulation pad proposed in this utility model;
[0013] Figure 3 This is a schematic diagram of a reinforcement mechanism for a luggage sound insulation pad proposed in this utility model;
[0014] Figure 4 This is a schematic diagram of the protective mechanism of a luggage sound insulation pad proposed in this utility model.
[0015] In the diagram: 1. Polyurethane flexible foam sound-absorbing layer; 2. Hot melt felt damping sound-absorbing cotton layer; 3. Sound insulation layer; 4. Moisture-proof layer; 5. Waterproof layer; 6. Abrasion-resistant layer; 7. Top layer; 101. First anti-slip block; 102. Suction cup; 501. Water-absorbing block; 502. First Velcro; 601. Second Velcro; 701. Second protective block. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] Reference Figures 1-4 A luggage sound insulation pad includes a polyurethane soft foam sound-absorbing layer 1, a hot-melt felt damping sound-absorbing cotton layer 2 on top of the polyurethane soft foam sound-absorbing layer 1, a reinforcement mechanism for reinforcing the polyurethane soft foam sound-absorbing layer 1 at the bottom, a sound insulation layer 3 on top of the hot-melt felt damping sound-absorbing cotton layer 2, a moisture-proof layer 4 on top of the sound insulation layer 3, a waterproof layer 5 on top of the moisture-proof layer 4, and a water-absorbing block 501 inside the waterproof layer 5. The waterproof layer 5 prevents leakage around the water-absorbing block 501. The top of the waterproof layer 5 has a protective mechanism for protecting the water-absorbing block 501, which prevents liquid from accumulating under the pad.
[0018] Preferably, the reinforcement mechanism includes a plurality of first anti-slip blocks 101, which are all fixedly connected to the polyurethane soft foam sound-absorbing layer 1, and the plurality of first anti-slip blocks 101 are arranged in a square and uniform manner. A plurality of suction cups 102 are fixedly connected to the bottom of the polyurethane soft foam sound-absorbing layer 1, and the plurality of suction cups 102 are arranged in a square and uniform manner. The arrangement of the suction cups 102 can ensure that the sound insulation pad can be stably fixed.
[0019] Preferably, the protective mechanism includes four first hook and loop fasteners 502, all of which are fixedly connected to the top of the waterproof layer 5 and are evenly arranged in a square shape. Each of the four first hook and loop fasteners 502 is fitted with a second hook and loop fastener 601. The same anti-abrasion layer 6 is fixedly connected to the top of the four second hook and loop fasteners 601. The anti-abrasion layer 6 can be removed by means of the hook and loop fasteners. A top layer 7 is fixedly connected to the top of the anti-abrasion layer 6. Multiple second protective blocks 701 are fixedly connected to the top of the top layer 7. The anti-abrasion layer 6 can protect the water-absorbing blocks 501.
[0020] Working principle: In use, the sound-absorbing pad is first placed inside the suitcase. Multiple suction cups 102 are located at the bottom of the pad. Because the surface of the suitcase is relatively smooth and flat, the suction cups 102 can fix the sound-absorbing pad in place. Once fixed, it can be used normally. Multiple second protective blocks 701 are also installed on the top of the sound-absorbing pad, and these blocks are raised to increase the contact area between the sound-absorbing pad and the placed object, thereby increasing friction. The greater the friction, the more difficult it is for the placed object to slide on the surface, thus reducing the possibility of sliding and achieving sound insulation. For the purpose of protection, a waterproof layer 5 is installed inside the sound insulation pad, and an absorbent block 501 is installed inside the waterproof layer 5. When liquid leaks, the absorbent block 501 can fully absorb the liquid. The waterproof layer 5 also wraps the absorbent block 501 on all four sides, thus preventing leakage around the absorbent block 501. An anti-wear layer 6 is installed on top of the waterproof layer 5, and the anti-wear layer 6 is connected to the waterproof layer 5 by a second Velcro 601. Therefore, during use, the absorbent block 501 can be removed to drain water, or the entire sound insulation pad can be removed to drain water, depending on the requirements.
[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A luggage sound insulation pad, comprising a polyurethane soft foam sound-absorbing layer (1), characterized in that, The top of the polyurethane soft foam sound-absorbing layer (1) is provided with a hot melt felt damping sound-absorbing cotton layer (2), the bottom of the polyurethane soft foam sound-absorbing layer (1) is provided with a reinforcement mechanism for reinforcing the polyurethane soft foam sound-absorbing layer (1), the top of the hot melt felt damping sound-absorbing cotton layer (2) is provided with a sound insulation layer (3), the top of the sound insulation layer (3) is provided with a moisture-proof layer (4), the top of the moisture-proof layer (4) is provided with a waterproof layer (5), the inside of the waterproof layer (5) is provided with a water-absorbing block (501), and the top of the waterproof layer (5) is provided with a protective mechanism for protecting the water-absorbing block (501).
2. The luggage sound insulation pad according to claim 1, characterized in that, The reinforcement mechanism includes a plurality of first anti-slip blocks (101), all of which are fixedly connected to the polyurethane soft foam sound-absorbing layer (1).
3. The luggage sound insulation pad according to claim 2, characterized in that, Furthermore, multiple first anti-slip blocks (101) are arranged in a square and uniform manner, and multiple suction cups (102) are fixedly connected to the bottom of the polyurethane soft foam sound-absorbing layer (1), and the multiple suction cups (102) are arranged in a square and uniform manner.
4. The luggage sound insulation pad according to claim 3, characterized in that, The protective mechanism includes four first hook and loop fasteners (502), all of which are fixedly connected to the top of the waterproof layer (5), and the four first hook and loop fasteners (502) are evenly arranged in a square shape. Each of the four first hook and loop fasteners (502) is fitted with a second hook and loop fastener (601) on top.
5. The luggage sound insulation pad according to claim 4, characterized in that, The top of each of the four second Velcro straps (601) is fixedly connected to the same anti-wear layer (6), the top of the anti-wear layer (6) is fixedly connected to a top layer (7), and the top of the top layer (7) is fixedly connected to a plurality of second protective blocks (701).