A back door threshold pressing plate anti-rustling assembly

Abstract

The utility model discloses a kind of automobile back door sill pressing plate anti-abnormal sound components, comprising: pressing plate main body, the pressing plate main body middle is provided with lock catch through-hole;Clamping block, lock catch through-hole opposite sides are respectively movably provided with clamping block;Elastic ring, the elastic ring is set in every clamping block mutually far side from each other.This application overcomes the problem that the prior art commonly uses the mode of increasing rubber gasket or smearing lubricating grease to relieve, but the effect is transient and easy to age. To provide a kind of automobile back door sill pressing plate anti-abnormal sound component, which can elastically clamp the lock catch of trunk door to prevent relative movement.

Description

Technical Field

[0001] This utility model relates to the field of automotive rear door sill pressure plates, specifically, to an anti-noise component for automotive rear door sill pressure plates. Background Technology

[0002] The tailgate latch of a car is usually fastened to the door sill plate by a clip. When the vehicle is in motion, due to road vibration and body torsion deformation, the latch and the door sill can easily move relative to each other, resulting in a "clicking" or "squeaking" noise.

[0003] In existing technologies, the problem is often alleviated by adding rubber gaskets or applying grease, but the effect is short-lived and prone to aging.

[0004] Therefore, providing a car rear door sill pressure plate anti-noise component that can elastically clamp the trunk door latch to prevent relative movement is a problem that this utility model urgently needs to solve. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this invention is to overcome the shortcomings of existing technologies that often employ methods such as adding rubber gaskets or applying lubricating grease to alleviate the issue, which are short-lived and prone to aging. Therefore, this invention provides a car rear door sill pressure plate anti-noise component that can elastically clamp the trunk door latch to prevent relative movement.

[0006] To achieve the above objectives, this utility model provides a car rear door sill pressure plate anti-noise component, comprising: a pressure plate body, wherein a locking hole is provided in the middle of the pressure plate body; clamping blocks, wherein clamping blocks are respectively provided on opposite sides of the locking hole and are movable relative to each other; and elastic rings, wherein the elastic rings are sleeved on the opposite side of each clamping block.

[0007] Preferably, the clamping block is provided with a limiting guide block, and the locking through hole is provided with guide grooves on opposite sides that are adapted to each limiting guide block.

[0008] Preferably, each clamping block is provided with an assembly groove adapted to the elastic ring on a side away from each other.

[0009] Preferably, each clamping block has a rubber block positioned close to one side of each other.

[0010] Preferably, the clamping block is connected to the side wall of the locking hole by a number of dampers.

[0011] Preferably, the pressure plate body has buffer blocks protruding from both sides opposite the buckle hole.

[0012] Preferably, a sound-absorbing layer is provided inside the buffer block and around the buckle perforation.

[0013] According to the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: This application absorbs high-frequency sound waves by setting a sound-absorbing layer to reduce the airborne sound transmission effect, and at the same time weakens the vibration energy through a damper and a rubber block to achieve passive noise reduction; at the same time, the elastic ring will drive the clamping block to actively clamp the latch to further weaken the vibration energy and achieve active noise reduction; specifically, by inserting the trunk door into the latch through hole, the elastic ring will drive the clamping block to move relative to achieve clamping of the latch. The clamping block is "floating", which can automatically compensate for the manufacturing tolerance of the latch rod diameter and the center position deviation of the latch mounting hole, regardless of Regardless of tolerance variations, the elastic ring always ensures a tight fit between the clamping block and the latch, guaranteeing a consistently gapless fit. Vehicle vibration is the root cause of abnormal noises. This design provides a continuous, active clamping force, rather than a passive gap fit. When vehicle vibration causes the latch to have a slight tendency to wobble, the elastic ring immediately provides a counterforce through the clamping block to suppress this wobble, transforming potential "impact noises" into "micro-deformations" absorbed by the elastic ring. Through the multiple configurations of sound-absorbing layers, rubber blocks, dampers, elastic rings, and clamping blocks, a combination of active and passive noise reduction is achieved to prevent the generation and transmission of abnormal noises.

[0014] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of a car rear door sill pressure plate anti-noise component provided in a preferred embodiment of this utility model; Figure 2 This is a partial planar cross-sectional view of a car rear door sill pressure plate anti-noise component provided in a preferred embodiment of this utility model; Figure 3 This is a partial three-dimensional representation of a car rear door sill pressure plate anti-noise component provided in a preferred embodiment of the present invention. Figure 1 ; Figure 4 This is a partial three-dimensional representation of a car rear door sill pressure plate anti-noise component provided in a preferred embodiment of the present invention. Figure 2 .

[0016] Explanation of reference numerals in the attached drawings: 1. Pressure plate body; 11. Locking hole; 12. Guide groove; 2. Clamping block; 21. Limiting guide block; 22. Assembly groove; 23. Rubber block; 3. Elastic ring; 4. Damper; 5. Buffer block. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0018] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the utility model product is in use. These are merely for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first," "second," and "third," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. Additionally, the terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0019] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] Reference Figure 1 and Figure 2A car rear door sill pressure plate anti-noise component includes: a pressure plate body 1, wherein a locking through hole 11 is provided in the middle of the pressure plate body 1; clamping blocks 2, wherein clamping blocks 2 are respectively provided on opposite sides of the locking through hole 11 and can be moved relative to each other; and elastic rings 3, wherein the elastic rings 3 are sleeved on each clamping block 2 on the side away from each other.

[0022] The elastic ring 3 of this application adopts rubber elastic ring 3, annular spring ring, etc., to ensure that the elastic ring 3 can drive the clamping block 2 to clamp the lock.

[0023] Reference Figure 2 The clamping block 2 is provided with a limiting guide block 21, and the locking through hole 11 is provided with guide grooves 12 on both sides that are adapted to each limiting guide block 21.

[0024] The guide block of this application is embedded in the guide groove 12 to form a sliding pair, ensuring smooth movement without shaking.

[0025] Reference Figure 3 and Figure 4 Each clamping block 2 is provided with an assembly groove 22 that is adapted to the elastic ring 3 on one side away from each other.

[0026] In this application, each elastic ring 3 is respectively fitted into the corresponding mounting groove 22 to prevent slippage and provide reliable clamping force.

[0027] Reference Figure 4 Each clamping block 2 has a rubber block 23 positioned close to each other on one side.

[0028] Even if the latch is macroscopically clamped, the vehicle's high-frequency, minute vibrations may still attempt to generate friction on the contact surface. The excellent damping properties of the rubber block 23 can absorb these micro-vibrations, converting kinetic energy into heat energy, thus fundamentally eliminating the "squeaking" high-frequency friction noise.

[0029] Reference Figure 2 and Figure 4 The clamping block 2 is connected to the side wall of the locking hole 11 by a number of dampers 4.

[0030] When the vehicle generates high-frequency, low-amplitude minor vibrations, these vibrations attempt to cause the clamping block 2 to vibrate slightly within the cavity. At this time, the damper 4 connected to the side of the clamping block 2 comes into play. Its viscoelastic material undergoes significant shear deformation, converting vibration energy into heat and dissipating it, thereby rapidly attenuating these minor vibrations and preventing their transmission and amplification. The stroke of the damper 4 is adapted to the stroke of the limiting guide block 21 and the guide groove 12. The damper 4 can be a conventional liquid damper 4 used in conjunction with a spring. The specific usage method is existing technology and will not be described in detail here.

[0031] Reference Figure 1 The pressure plate body 1 is provided with buffer blocks 5 protruding on both sides opposite to the buckle hole 11.

[0032] When the trunk door is closed, it will first come into contact with the buffer block 5 to avoid direct impact on the pressure plate body 1, thereby extending the service life of the pressure plate and the trunk door.

[0033] The buffer block 5 is also provided with sound-absorbing layers inside and around the buckle hole 11.

[0034] The sound-absorbing layer of this application uses aluminum fiber sound-absorbing board, with a layer of environmentally friendly polyester fiber sound-absorbing cotton in the middle or butyl rubber damping sheet, which takes into account both high-frequency sound absorption and low-frequency vibration reduction, and achieves a wider sound absorption band.

[0035] The device provided by this utility model absorbs high-frequency sound waves by setting a sound-absorbing layer to reduce airborne sound transmission, and weakens vibration energy through damper 4 and rubber block 23 to achieve passive noise reduction. Simultaneously, elastic ring 3 drives clamping block 2 to actively clamp the latch, further weakening vibration energy and achieving active noise reduction. Specifically, by inserting the trunk door into the latch through hole 11, elastic ring 3 drives clamping block 2 to move relative to it, thus clamping the latch. Clamping block 2 is "floating," automatically compensating for manufacturing tolerances in the latch rod diameter and center position deviations in the latch mounting hole. Regardless of tolerance changes, the elastic ring 3... The elastic ring 3 always pushes the clamping block 2 to fit tightly with the latch, ensuring a consistent gapless fit. Vehicle vibration is the root cause of abnormal noise. This design provides a continuous, active clamping force, rather than a passive gap fit. When vehicle vibration causes the latch to have a slight tendency to wobble, the elastic ring 3 will immediately provide a counterforce through the clamping block 2 to suppress this wobble, converting the possible "impact noise" into "micro-deformation" absorbed by the elastic ring 3. Through the multiple settings of the sound-absorbing layer, rubber block 23, damper 4, elastic ring 3 and clamping block 2, a combination of active and passive noise reduction is achieved to prevent the generation and transmission of abnormal noise.

[0036] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0038] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A car rear door sill pressure plate anti-noise component, characterized in that, include: The pressure plate body (1) has a locking hole (11) in the middle; clamping blocks (2) are provided on opposite sides of the locking hole (11); elastic rings (3) are sleeved on each clamping block (2) on the side away from each other.

2. The anti-noise component for the car rear sill plate according to claim 1, characterized in that, The clamping block (2) is provided with a limit guide block (21), and the locking through hole (11) is provided with guide grooves (12) on both sides that are adapted to each limit guide block (21).

3. The anti-noise component for the car rear sill plate according to claim 1, characterized in that, Each clamping block (2) has a mounting groove (22) that is compatible with the elastic ring (3) on one side away from each other.

4. The anti-noise component for the car rear sill plate according to claim 1, characterized in that, Each clamping block (2) has a rubber block (23) placed on one side close to each other.

5. The anti-noise component for the car rear sill plate according to claim 1, characterized in that, The clamping block (2) is connected to the side wall of the locking hole (11) by a number of dampers (4).

6. The anti-noise component for the car rear sill plate according to claim 1, characterized in that, The pressure plate body (1) is provided with buffer blocks (5) protruding on both sides opposite to the buckle hole (11).

7. The anti-noise component for the car rear sill plate according to claim 6, characterized in that, The buffer block (5) is provided with a sound-absorbing layer inside and around the buckle hole (11).

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