Vehicle bottom plate assembly with noise reduction function

Abstract

The vehicle bottom plate assembly with the noise reduction function comprises a vehicle bottom plate body, a protection mechanism is arranged at the bottom of the vehicle bottom plate body, the protection mechanism comprises a protection shell fixedly connected with the vehicle bottom plate body, a partition plate is fixedly connected into the protection shell, a noise reduction layer is arranged on the top of the partition plate, and a noise reduction layer is arranged on the noise reduction layer. A cavity is formed in the side, opposite to the vehicle bottom plate body, of the heat preservation layer, the bottom of the partition plate is fixedly connected with a damper, the damper is sleeved with a buffer spring, the bottom end of the damper is fixedly connected with an anti-collision plate, and a protective armor layer is arranged at the bottom of the anti-collision plate; an elastic buffer block is arranged between the partition plate and the anti-collision plate, and the outer portion of the vehicle bottom plate body is coated with an anti-corrosion layer in a spraying mode. By arranging the protection mechanism, the noise reduction, heat preservation and anti-collision effects of the vehicle assembly are enhanced, loosening and deformation of components caused by collision of road surface protrusions and the vehicle bottom plate assembly are reduced, and potential safety hazards in use of the vehicle bottom plate assembly are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle bottom plates, in particular to a vehicle bottom plate assembly with a noise reduction function. Background Art

[0002] The floor is an important component of various vehicles and one of the main load-bearing parts of the vehicle. It is used to assemble various accessories on the bottom of the vehicle. Its performance is very important to the overall performance of the vehicle. At present, the floor is usually divided into multiple areas by multiple frame members, and these frame members are configured to be symmetrical with the center line of the bottom of the vehicle as the center. The resonance between the left and right sides of the floor during driving will cause greater noise. At present, in order to reduce the impact of noise, noise reduction function is usually added to the vehicle floor.

[0003] The inventor discovered during the process of implementing the utility model:

[0004] The patent document with announcement number CN214565080U discloses a vehicle floor assembly with noise reduction function, including a floor assembly, wherein the floor assembly is composed of a left floor assembly, a right floor assembly and a frame, wherein the left floor assembly and the right floor assembly are respectively fixedly arranged on the left and right sides of the frame, and the left and right sides of the lower end of the right floor assembly are fixedly connected with counterweight protrusions, and the lower end of the left floor assembly is provided with a groove, and the floor assembly can be formed by the mutual cooperation of the left floor assembly, the right floor assembly and the frame, and the sound insulation, heat insulation and anti-seismic performance of the floor assembly can be improved by the mutual cooperation of the upper floor, the lower floor, the sound insulation board, the heat insulation board and the shock-absorbing board, and the overall strength can meet the use requirements, and the resonance formed by the left and right floor plates can be effectively reduced by the mutual cooperation of the counterweight protrusions and the grooves, thereby reducing the generation of noise, so as to further reduce the impact of noise on occupants in the vehicle and improve the comfort of use.

[0005] However, this patent does not have an anti-collision structure. When a bump on the road hits the vehicle floor assembly during use, it is easy to cause the components on the vehicle floor assembly to loosen or deform, increasing the safety hazard of using the vehicle floor assembly. Summary of the invention

[0006] In order to solve the deficiencies in the prior art, the utility model provides a vehicle floor assembly with a noise reduction function, which has the advantages of noise reduction, heat preservation and collision prevention.

[0007] To this end, the technical solution of the utility model is: a vehicle floor assembly with a noise reduction function, comprising a vehicle floor body, a protective mechanism being arranged at the bottom of the vehicle floor body;

[0008] The protection mechanism includes a protection shell fixedly connected to the vehicle floor body, a partition is fixedly connected to the inside of the protection shell, a sound-absorbing layer is arranged on the top of the partition, a heat-insulating layer is arranged on the top of the sound-absorbing layer, a cavity is arranged on the side of the heat-insulating layer opposite to the vehicle floor body, a damper is fixedly connected to the bottom of the partition, a buffer spring is sleeved on the outside of the damper, a bumper plate is fixedly connected to the bottom end of the damper, a protective armor layer is arranged on the bottom of the bumper plate, an elastic buffer block is fixedly connected to the side of the partition opposite to the bumper plate, and an anti-corrosion layer is sprayed on the outside of the vehicle floor body.

[0009] Furthermore, both left and right sides of the protective shell are fixedly connected with connecting seats, and the internal threads of the connecting seats are connected with fixing screws that are threadedly connected to the vehicle floor body.

[0010] Furthermore, the thickness of the sound-absorbing layer is two centimeters, and the thickness of the heat-insulating layer is one centimeter.

[0011] Furthermore, there are a plurality of dampers, and the plurality of dampers are symmetrically distributed.

[0012] Furthermore, a through groove is provided at the bottom of the protective shell, and the anti-collision plate passes through the protective shell through the through groove.

[0013] Furthermore, there are two elastic buffer blocks, and the top and bottom of the elastic buffer blocks are fixedly connected to the partition plate and the anti-collision plate respectively.

[0014] Beneficial effects: Compared with the prior art, the utility model enhances the noise reduction, heat preservation and anti-collision effects of the vehicle assembly by setting a protective mechanism, reduces the loosening and deformation of components caused by the collision of road protrusions with the vehicle floor assembly, and solves the problem that when the vehicle floor assembly is not equipped with an anti-collision structure and road protrusions collide with the vehicle floor assembly during use, it is easy to cause the loosening or deformation of components on the vehicle floor assembly, thereby increasing the potential safety hazards in the use of the vehicle floor assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the utility model.

[0016] Figure 2 It is a stereogram of the utility model.

[0017] As shown in the figure: 1. Vehicle floor body; 101. Anti-corrosion layer; 2. Protective shell; 201. Through groove; 21. Connecting seat; 22. Fixing screw; 3. Partition; 4. Sound-absorbing layer; 5. Insulation layer; 6. Cavity; 7. Damper; 8. Buffer spring; 9. Anti-collision plate; 10. Protective armor layer; 11. Elastic buffer block. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings, but this embodiment should not be understood as a limitation to the present invention.

[0019] The utility model Figure 1 and Figure 2 As shown:

[0020] A vehicle floor assembly with a noise reduction function comprises a vehicle floor body 1, the bottom of which is provided with a protection mechanism.

[0021] In this embodiment, the protection mechanism includes a protection shell 2 fixedly connected to the vehicle floor body 1, and the left and right sides of the protection shell 2 are fixedly connected with a connection seat 21, and the internal thread of the connection seat 21 is connected to a fixing screw 22 threadedly connected to the vehicle floor body 1, and the protection shell 2 is installed and fixed, which is convenient for maintenance personnel to disassemble, inspect or replace the protection shell 2, and reduces the work intensity of the maintenance personnel. The interior of the protection shell 2 is fixedly connected with a partition 3, and the top of the partition 3 is provided with a sound-absorbing layer 4, and the top of the sound-absorbing layer 4 is provided with a heat-insulating layer 5;

[0022] Among them, the thickness of the sound-absorbing layer 4 is two centimeters, and the sound-absorbing layer 4 is sound-absorbing cotton. The sound-absorbing cotton mainly reduces the reflection and propagation of sound by sound absorption, so that the intensity and sound quality of sound are improved. The sound-absorbing cotton is usually used to reduce the noise generated by space, machines and equipment, so that the sound waves in the air can be absorbed by the sound-absorbing cotton instead of being reflected back. The thickness of the thermal insulation layer 5 is one centimeter, and the thermal insulation layer 5 is polyurethane. Polyurethane is an excellent thermal insulation material with low thermal conductivity. The polyurethane foam material is not only waterproof, high in strength and strong in integrity, but also has the characteristics of green environmental protection, flame retardancy and strong anti-deformation ability. The thermal insulation layer 5 is provided with a cavity 6 on the side opposite to the vehicle floor body 1. The noise is repeatedly reflected inside the cavity 6, which reduces the noise propagation and improves the noise reduction effect of the vehicle floor body 1.

[0023] In addition, a damper 7 is fixedly connected to the bottom of the partition 3, a buffer spring 8 is sleeved on the outside of the damper 7, and an anti-collision plate 9 is fixedly connected to the bottom end of the damper 7. There are several dampers 7, and the dampers 7 are symmetrically distributed. The anti-collision plate 9 is buffered by the mutual coordination of the damper 7 and the buffer spring 8, so as to reduce the damage to the vehicle floor assembly caused by the impact of road bumps and strengthen the protection of the vehicle floor assembly. A protective armor layer 10 is arranged at the bottom of the anti-collision plate 9, and a through groove 201 is opened at the bottom of the protective shell 2. The anti-collision plate 9 penetrates the protective shell 2 through the through groove 201. The protective armor layer 10 is located at the bottom of the protective shell 2. The protective armor layer 10 is a water-soluble chassis anti-rust glue, also known as an environmentally friendly chassis anti-rust glue. The water-soluble chassis anti-rust glue has strong adhesion, good elasticity of the glue layer, and significant chassis sound insulation effect. It is the preferred material for chassis armor, which increases the sound insulation effect of the automobile floor assembly and reduces the rust of the automobile floor assembly.

[0024] Specifically, an elastic buffer block 11 is fixedly connected to the side of the partition 3 opposite to the anti-collision plate 9. There are two elastic buffer blocks 11. The top and bottom of the elastic buffer block 11 are respectively fixedly connected to the partition 3 and the anti-collision plate 9. When the anti-collision plate 9 is hit by a bump on the road surface, the anti-collision plate 9 squeezes the damper 7, the buffer spring 8 and the elastic buffer block 11, causing the buffer spring 8 and the elastic buffer block 11 to deform, thereby buffering the anti-collision plate 9 and reducing the damage to the vehicle floor assembly caused by the impact force. The outside of the vehicle floor body 1 is sprayed with an anti-corrosion layer 101.

[0025] The working principle of this utility model:

[0026] During the use of the vehicle floor assembly, when the anti-collision plate 9 is hit by a bump on the road surface, the anti-collision plate 9 squeezes the damper 7, the buffer spring 8 and the elastic buffer block 11, causing the buffer spring 8 and the elastic buffer block 11 to deform, thereby buffering the anti-collision plate 9 and reducing the transmission of impact force and damage to the vehicle floor assembly. In addition, by providing the sound-absorbing layer 4, the thermal insulation layer 5, the cavity 6 and the protective armor layer 10, the noise reduction and sound insulation effects and the thermal insulation effects of the vehicle floor assembly are enhanced, thereby achieving the purpose of improving the comfort inside the vehicle and reducing deformation or damage to the vehicle floor assembly.

[0027] Parts not described in detail in this specification are well-known technologies in the art.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle floor assembly with noise reduction function, comprising a vehicle floor body (1), characterized in that: A protective mechanism is provided at the bottom of the vehicle floor plate body (1). The protective mechanism comprises a protective shell (2) fixedly connected to a vehicle floor body (1); a partition (3) is fixedly connected inside the protective shell (2); a sound-absorbing layer (4) is arranged on the top of the partition (3); a heat-insulating layer (5) is arranged on the top of the sound-absorbing layer (4); a cavity (6) is arranged on the side of the heat-insulating layer (5) opposite to the vehicle floor body (1); a damper (7) is fixedly connected to the bottom of the partition (3); a buffer spring (8) is sleeved on the outside of the damper (7); an anti-collision plate (9) is fixedly connected to the bottom end of the damper (7); a protective armor layer (10) is arranged on the bottom of the anti-collision plate (9); an elastic buffer block (11) is fixedly connected to the side of the partition (3) opposite to the anti-collision plate (9); and an anti-corrosion layer (101) is sprayed on the outside of the vehicle floor body (1).

2. A vehicle floor assembly with noise reduction function according to claim 1, characterized in that: The left and right sides of the protective shell (2) are both fixedly connected to a connecting seat (21), and the internal thread of the connecting seat (21) is connected to a fixing screw (22) which is threadedly connected to the vehicle floor plate body (1).

3. A vehicle floor assembly with noise reduction function according to claim 1 or 2, characterized in that: The thickness of the sound-absorbing layer (4) is two centimeters, and the thickness of the heat-insulating layer (5) is one centimeter.

4. The vehicle floor assembly with noise reduction function according to claim 3, characterized in that: There are a plurality of dampers (7), and the plurality of dampers (7) are symmetrically distributed.

5. A vehicle floor assembly with noise reduction function according to claim 1, 2 or 4, characterized in that: A through groove (201) is provided at the bottom of the protective shell (2), and the anti-collision plate (9) passes through the through groove (201) through the protective shell (2).

6. The vehicle floor assembly with noise reduction function according to claim 5, characterized in that: The number of the elastic buffer blocks (11) is two, and the top and bottom of the elastic buffer blocks (11) are fixedly connected to the partition plate (3) and the anti-collision plate (9) respectively.

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