Car body tail door buffer block for shock absorption and noise reduction

Abstract

The utility model discloses a car body tail door buffer block for shock absorption and noise reduction, which comprises a buffer shaft sleeve, the top of the buffer shaft sleeve is provided with a shaft sleeve mounting seat, the top of the inner side of the buffer shaft sleeve is provided with a buffer screw rod, and the top of the buffer screw rod is provided with a nut adjusting block. A buffer limiting inner rod is mounted at the top of the inner side of the buffer screw rod, secondary buffer limiting blocks are arranged on the two sides of the buffer limiting inner rod, and secondary buffer limiting grooves are formed in the two sides of the interior of the buffer screw rod; when the device is installed on the tail door of the vehicle for buffering and damping, primary damping can be achieved through the effect of the buffering rubber sleeve, if the force when the vehicle door is closed is large and the received collision force is large, after a secondary buffering spring in the installed secondary damping device is stressed and deformed, the same buffering effect can be achieved, buffering is enhanced, and meanwhile the buffering effect is improved. And the buffering performance of the buffering block is improved, so that the functionality and practicability of the buffering block are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of buffer blocks, and in particular relates to a vehicle tailgate buffer block for shock absorption and noise reduction. Background Art

[0002] The buffer block is a device used to reduce shock and vibration, and is widely used in various machinery, equipment and vehicles. Its main function is to absorb and disperse energy to prevent damage between components due to direct contact, and it can also improve the stability and durability of the system. The tailgate buffer block is a device installed inside the tailgate of the car. Its main function is to reduce the impact and noise when the tailgate is closed, while maintaining a uniform gap between the tailgate and the body, improving the smoothness and aesthetics of closing.

[0003] The patent with application number 202223380858.4 discloses a buffer block for a car door. By setting the outer end face of the impact buffer block to an inclined surface, the noise generated when closing the door is reduced, and at the same time, the rubber rebound force received when closing the door is made larger and larger, which plays a stable buffering role to close the car door; the snap-in block is set to an inclined surface to play a guiding role, which is convenient for inserting into the mounting hole. At the same time, the guiding effect of the inclined surface itself facilitates the insertion of the snap-in block into the interior of the door panel until the door panel is snapped into the slot; in combination with the above application, and in connection with the existing buffer block structure, when the existing buffer block is installed and used, it is usually directly embedded between the car door and the car body. After installation, the buffering effect is single and it cannot play multiple buffering roles. Moreover, when the gap between the car door and the car body is different, it cannot be installed and adapted, which affects the practicality and functionality of the buffer block. For this reason, we propose a car tailgate buffer block for shock absorption and noise reduction. Utility Model Content

[0004] The utility model aims to provide a vehicle tailgate buffer block for shock absorption and noise reduction, so as to solve the problem raised in the above-mentioned background technology that when the existing buffer blocks are installed and used, they are usually directly embedded between the vehicle door and the vehicle body, and the buffering effect is single after installation, and it cannot play multiple buffering roles. Moreover, when the gap between the vehicle door and the vehicle body is different, it is impossible to install and adapt, thereby affecting the practicality and functionality of the buffer blocks.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle tailgate buffer block for shock absorption and noise reduction, comprising a buffer sleeve, a sleeve mounting seat is installed on the top of the buffer sleeve, a buffer screw is installed on the inner top of the buffer sleeve, a nut adjustment block is installed on the top of the buffer screw, a buffer limit inner rod is installed on the inner top of the buffer screw, secondary buffer limit blocks are arranged on both sides of the buffer limit inner rod, secondary buffer limit grooves are opened on both sides of the interior of the buffer screw, and a secondary buffer spring is also installed on the buffer limit inner rod at the top of the buffer screw, and a buffer rubber sleeve is installed on the top of the buffer limit inner rod.

[0006] Preferably, the buffer limit inner rod and the buffer screw rod are limited by a secondary buffer limit block and a secondary buffer limit groove.

[0007] Preferably, an integrated insert is provided on the top of the buffer limit inner rod, an annular protrusion is installed on the outer side of the insert, an insert groove is provided on the inner side of the buffer rubber sleeve, and an annular groove is provided on the inner side of the insert groove.

[0008] Preferably, the buffer rubber sleeve and the buffer limit inner rod are installed in alignment via an embedding groove and an embedding block, and the embedding groove and the embedding block are clamped via an annular protrusion and an annular groove.

[0009] Preferably, the outer surface of the buffer screw is provided with an external thread, the inner side of the buffer sleeve is provided with an internal thread, and the buffer screw and the buffer sleeve are mounted and fixed via the internal thread and the external thread.

[0010] Preferably, the buffer screw is screwed into the buffer sleeve by an external thread to adjust the installation spacing.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) With the multi-stage buffer structure, when the device is installed on the tailgate of a vehicle for buffering and shock absorption, the buffer rubber sleeve can play a primary role in shock absorption. If the door is closed with a large force and the collision force is large, the secondary buffer spring in the secondary shock absorption device can play the same role in shock absorption after being deformed by the force. While strengthening the buffer, the buffer performance of the buffer block is improved, thereby improving the functionality and practicality of the buffer block.

[0013] (2) When the buffer block is installed on a vehicle, if the gaps between the door and the vehicle body at different positions are different when the tailgate of the vehicle is closed, the installation depth of the buffer screw can be adjusted by a threaded adjustment structure. By adjusting the installation length, the structure can be applied to different gaps, thereby achieving better buffering performance and improving the functionality and practicality of the buffer block. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the buffer screw of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the buffer screw of the utility model;

[0017] In the figure: 100, buffer sleeve; 101, sleeve mounting seat; 200, buffer screw; 201, nut adjustment block; 202, external thread; 203, secondary buffer limit block; 204, secondary buffer limit groove; 300, buffer limit inner rod; 301, secondary buffer spring; 400, buffer rubber sleeve; 401, embedded groove; 402, annular groove; 403, embedded block; 404, annular protrusion. DETAILED DESCRIPTION

[0018] 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.

[0019] Example 1

[0020] See also Figure 1 , Figure 2 and Figure 3The utility model provides a technical solution: the buffer block is usually made of rubber or other elastic materials, has certain elasticity and durability, and its structural design and installation position are carefully calculated and adjusted to ensure that it can effectively play a buffering role when the tailgate is closed. A vehicle tailgate buffer block for shock absorption and noise reduction includes a buffer sleeve 100, an integrally formed sleeve mounting seat 101 is arranged on the top of the buffer sleeve 100, a buffer screw 200 is installed on the inner top of the buffer sleeve 100, an integral nut adjustment block 201 is arranged on the top of the buffer screw 200, a buffer limit inner rod 300 is installed on the inner top of the buffer screw 200, and an integral secondary buffer limit block 203 is arranged on both sides of the buffer limit inner rod 300, and secondary buffer limit grooves 204 are opened on both sides of the interior of the buffer screw 200, and a secondary buffer spring 301 is also sleeved and installed on the top of the buffer screw 200 on the buffer limit inner rod 300. When the buffer screw 200 is subjected to force, the secondary buffer spring 301 will be squeezed. A buffer rubber sleeve 400 is installed on the top of the buffer limit inner rod 300. When the buffer block in the application is installed in a vehicle for use, the buffer sleeve 100 is fixed to the vehicle through the sleeve mounting seat 101. After installation, the nut adjustment block 201 is rotated using a tool, and the buffer screw 200 is screwed into the interior of the buffer sleeve 100 through the external thread 202. After the installation is completed, when the tailgate of the vehicle is closed and colliding, it will pre-collide on the buffer rubber sleeve 400. The buffer rubber sleeve 400 is deformed by force and plays a certain buffering and rebounding role. If the closing impact force is large, the buffer limit inner rod 300 is stressed, and one end is pushed and squeezed to the inner side of the nut adjustment block 201. When displaced, it is limited by the secondary buffer limit block 203 and the secondary buffer limit groove 204. At the same time, the secondary buffer spring 301 mounted on the buffer limit inner rod 300 will be squeezed to deform. The deformed secondary buffer spring 301 provides a certain rebound force, thereby playing a secondary buffering role, better buffering and shock absorption, and reducing the noise caused by bumps.

[0021] Specifically, the buffer limit inner rod 300 and the buffer screw 200 are limited by a secondary buffer limit block 203 and a secondary buffer limit groove 204. The limiting method can ensure the elastic limit of the buffer screw 200, while ensuring the stability of the structure and avoiding unstable installation of the structure.

[0022] Example 2

[0023] See also Figure 1 , Figure 2 and Figure 3The utility model provides a technical solution: a vehicle tailgate buffer block for shock absorption and noise reduction, the top of the buffer limit inner rod 300 is provided with an integrated embedded block 403, the outer side of the embedded block 403 is provided with an integrated annular protrusion 404, the inner side of the buffer rubber sleeve 400 is provided with an embedded groove 401, the inner side of the embedded groove 401 is provided with an annular groove 402, the buffer rubber sleeve 400 and the buffer limit inner rod 300 are installed in alignment through the embedded groove 401 and the embedded block 403, and the embedded groove 401 and the embedded block 403 are clamped by the annular protrusion 404 and the annular groove 402. After a period of use, if the buffer rubber sleeve 400 is aged or deformed, it is convenient to disassemble and replace, thereby improving the practicality of the structure.

[0024] Specifically, an outer surface of the buffer screw 200 is provided with an external thread 202, and an inner side of the buffer sleeve 100 is provided with an internal thread. The buffer screw 200 and the buffer sleeve 100 are fixed by the internal thread and the external thread 202, and the buffer screw 200 is screwed into the buffer sleeve 100 by the external thread 202 to adjust the installation distance. When the buffer block is installed, if the distance between the tailgate and the vehicle body at different positions is different, when the buffer screw 200 is screwed into the buffer sleeve 100, the depth of rotation can also be adjusted. The depth of the screwed buffer screw 200 is different, so that it is suitable for installation at different distances and can play the same shock-absorbing and buffering role, thereby improving the practicability and functionality of the buffer block and better shock-absorbing and buffering use.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle tailgate buffer block for shock absorption and noise reduction, comprising a buffer sleeve (100), characterized in that: A sleeve mounting seat (101) is installed on the top of the buffer sleeve (100), a buffer screw (200) is installed on the inner top of the buffer sleeve (100), a nut adjustment block (201) is installed on the top of the buffer screw (200), a buffer limit inner rod (300) is installed on the inner top of the buffer screw (200), two-level buffer limit blocks (203) are arranged on both sides of the buffer limit inner rod (300), two-level buffer limit grooves (204) are opened on both sides of the inside of the buffer screw (200), and a two-level buffer spring (301) is also installed on the buffer limit inner rod (300) at the top of the buffer screw (200), and a buffer rubber sleeve (400) is installed on the top of the buffer limit inner rod (300).

2. A vehicle tailgate buffer block for shock absorption and noise reduction according to claim 1, characterized in that: The buffer limiting inner rod (300) and the buffer screw rod (200) are limitedly installed via a secondary buffer limiting block (203) and a secondary buffer limiting groove (204).

3. The vehicle tailgate buffer block for shock absorption and noise reduction according to claim 1, characterized in that: An integrated insert (403) is provided on the top of the buffer limit inner rod (300), an annular protrusion (404) is installed on the outer side of the insert (403), an insert groove (401) is provided on the inner side of the buffer rubber sleeve (400), and an annular groove (402) is provided on the inner side of the insert groove (401).

4. A vehicle tailgate buffer block for shock absorption and noise reduction according to claim 3, characterized in that: The buffer rubber sleeve (400) and the buffer limit inner rod (300) are installed in alignment via an embedding groove (401) and an embedding block (403), and the embedding groove (401) and the embedding block (403) are clamped via an annular protrusion (404) and an annular groove (402).

5. The vehicle tailgate buffer block for shock absorption and noise reduction according to claim 1, characterized in that: The outer surface of the buffer screw (200) is provided with an external thread (202), and the inner side of the buffer sleeve (100) is provided with an internal thread. The buffer screw (200) and the buffer sleeve (100) are installed and fixed via the internal thread and the external thread (202).

6. A vehicle tailgate buffer block for shock absorption and noise reduction according to claim 5, characterized in that: The buffer screw (200) is screwed into the buffer sleeve (100) via the external thread (202) to adjust the installation spacing.

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