Shock absorption and noise reduction device of automobile corrugated flexible joint

Abstract

The utility model relates to the technical field of corrugated flexible joints, in particular to a shock absorption and noise reduction device of an automobile corrugated flexible joint, which comprises a corrugated flexible joint and an exhaust pipe, the exhaust pipe is arranged on one side of the corrugated flexible joint, a connecting component is arranged at one end of the corrugated flexible joint, and a threaded sleeve is arranged at the other end of the corrugated flexible joint. The exhaust pipe is movably installed on the corrugated flexible joint through a threaded sleeve, a damping mechanism is arranged at one end of the corrugated flexible joint, a first movable sleeve is arranged in the damping mechanism, a first telescopic rod is arranged on one side of the first movable sleeve, a first spring is arranged on the first telescopic rod, and a first fixing sleeve is arranged on the first telescopic rod. A first hinge is arranged on one side of the first fixing sleeve, a noise reduction mechanism is arranged on the exhaust pipe, a second movable sleeve is arranged in the noise reduction mechanism, and a high-temperature-resistant damping pad is arranged on one side of the second movable sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated flexible joints, and more specifically, to a shock-absorbing and noise-reducing device for automobile corrugated flexible joints. Background Art

[0002] Automotive corrugated flexible joints, also known as automotive exhaust bellows, are important connecting components in the automotive industry. They primarily serve as connectors. Leveraging their unique airtightness, and through a double-layer hydraulic and water-based forming process, the bellows are manufactured to facilitate exhaust emissions and minimize environmental pollution caused by engine exhaust. Furthermore, the flexible joint absorbs vibrations from the exhaust system and prevents excessive thermal deformation, thereby providing a comfortable ride. Stainless steel is the primary material for the flexible joint because it can withstand high temperatures and salt corrosion. Metal flexible joints in automotive exhaust systems, also known as bellows or flexible joints, not only reduce vibration and noise, but also compensate for thermal expansion and contraction, protecting other exhaust system components.

[0003] In this regard, China has applied for patent number: CN214404491 U, which discloses a metal bellows flexible joint with a vibration damping device, which relates to the technical field of flexible joints, specifically a metal bellows flexible joint with a vibration damping device, comprising a body, an end ring, and a mounting tube. End rings are provided at both ends of the body, and one end of the end ring is fixedly connected to a connecting tube. The metal bellows flexible joint with a vibration damping device uses a metal hose, a mounting plate, a sleeve, a side shock-absorbing pad, and a limiting column to connect the connecting tube and the mounting tube using the metal hose. At the same time, the position between the mounting plates is limited by the limiting column, thereby limiting the degree of deformation of the metal hose. In combination with the side shock-absorbing pad and the sleeve, the limiting column can be moved within a certain range, thereby playing a role in vibration reduction, preventing the body from being damaged by strong vibration, and improving the stability of the metal bellows flexible joint with a vibration damping device.

[0004] However, the existing shock-absorbing and noise-reducing device for automobile corrugated flexible joints may cause the bellows to have small cracks or fissures on its surface due to the up and down shock-absorbing effect of the existing device during the use of automobile corrugated flexible joints in real life. These small cracks will more easily become large cracks during use, resulting in serious air leakage, which in turn affects the use.

[0005] Therefore, in order to solve the above technical problems, the present application proposes a multi-way valve stem dust prevention device. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a shock-absorbing and noise-reducing device for automobile corrugated flexible joints to solve the problems of the shock-absorbing and noise-reducing device for automobile corrugated flexible joints in the existing technology mentioned in the above background technology. In real life, during the use of automobile corrugated flexible joints, the upper and lower shock-absorbing effects of the existing device may cause the bellows to have small cracks or cracks on its surface due to extrusion or other reasons. These small cracks will more easily become large cracks during use, thereby causing serious air leakage, which in turn affects the use.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a shock-absorbing and noise-reducing device for a corrugated flexible joint of an automobile, comprising a corrugated winding joint, an exhaust pipe, an exhaust pipe being provided on one side of the corrugated winding joint, a connecting assembly being provided at one end of the corrugated winding joint, and a threaded sleeve being provided at the other end of the corrugated winding joint, the exhaust pipe being movably mounted on the corrugated winding joint through the threaded sleeve, a shock-absorbing mechanism being provided at one end of the corrugated winding joint, a first movable sleeve being provided in the shock-absorbing mechanism, a first telescopic rod being provided on one side of the first movable sleeve, a first spring being provided on the first telescopic rod, and a first fixed sleeve being provided on the first telescopic rod, a first hinge being provided on one side of the first fixed sleeve, a noise reduction mechanism being provided on the exhaust pipe, a second movable sleeve being provided in the noise reduction mechanism, and a high-temperature resistant shock-absorbing pad being provided on one side of the second movable sleeve.

[0008] Preferably, a second telescopic rod is movably mounted on one side of the high-temperature resistant shock-absorbing pad, and a second spring is movably mounted on the second telescopic rod.

[0009] Preferably, a second fixing sleeve is fixedly mounted on the telescopic end of the second telescopic rod, and one end of the second spring is fixedly mounted on the second fixing sleeve.

[0010] Preferably, a second hinge is movably mounted on the telescopic end of the second telescopic rod, a limiting sleeve is movably mounted on one side of the second hinge, and the limiting sleeve is fixedly mounted on the exhaust pipe.

[0011] Preferably, the first movable sleeve is movably mounted on the exhaust pipe, the bottom end of the first telescopic rod is movably mounted on the first movable sleeve, and the first spring is movably mounted on the first telescopic rod.

[0012] Preferably, the first fixing sleeve is fixedly mounted on the telescopic end of the first telescopic rod, one end of the first spring is fixedly mounted on the first fixing sleeve, one end of the first hinge is fixedly mounted on the first telescopic rod, and the other end of the first hinge is movably mounted on the threaded sleeve.

[0013] Preferably, the second movable sleeve is movably mounted on the exhaust pipe, and the second movable sleeve is in contact with the first movable sleeve, and the high-temperature resistant shock-absorbing pad is fixedly mounted on the second movable sleeve.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the utility model, a shock-absorbing mechanism is provided, through which one end of the automobile corrugated flexible joint can be shock-absorbing. The first movable sleeve in the mechanism is movable during use, and then the first telescopic rod is telescoped to cause the first spring to contract and buffer. In this process, the first spring can be limited and fixed by the first fixed sleeve, thereby providing a buffering and shock-absorbing effect on the automobile corrugated flexible joint. During the installation process, the inclination angle of the first telescopic rod can be changed as needed through the first hinge to adapt to the installation of various models of automobile corrugated flexible joints, thereby improving the practicality of the device.

[0016] 2. In the utility model, a noise reduction mechanism is provided to reduce noise during use. The second movable sleeve in the mechanism drives the high-temperature resistant shock-absorbing pad to move, thereby driving the second telescopic rod to extend and retract. The second telescopic rod drives the second spring to contract, thereby playing a role in noise reduction. This process can also be buffered by the high-temperature resistant shock-absorbing pad, and the second spring is limited and fixed by the second fixed sleeve, thereby improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is a front perspective view of the utility model;

[0019] Figure 2 It is a side perspective view of the utility model;

[0020] Figure 3 This is a front view structural stereogram of the shock absorbing mechanism of the utility model;

[0021] Figure 4 This is a top view of the noise reduction mechanism of the utility model;

[0022] 1. Bellows joint; 2. Exhaust pipe; 3. Connecting assembly; 4. Threaded sleeve; 5. Shock-absorbing mechanism; 51. First movable sleeve; 52. First telescopic rod; 53. First spring; 54. First fixed sleeve; 55. First hinge; 6. Noise reduction mechanism; 61. Second movable sleeve; 62. High-temperature resistant shock-absorbing pad; 63. Second telescopic rod; 64. Second spring; 65. Second fixed sleeve; 66. Second hinge; 67. Limit sleeve. DETAILED DESCRIPTION

[0023] like Figure 1-4As shown, the utility model provides a shock-absorbing and noise-reducing device for a corrugated flexible joint of an automobile, comprising a corrugated flexible joint 1, an exhaust pipe 2, an exhaust pipe 2 being provided on one side of the corrugated flexible joint 1, a connecting assembly 3 being provided at one end of the corrugated flexible joint 1, and a threaded sleeve 4 being provided at the other end of the corrugated flexible joint 1, the exhaust pipe 2 being movably mounted on the corrugated flexible joint 1 through the threaded sleeve 4, a shock-absorbing mechanism 5 being provided at one end of the corrugated flexible joint 1, a first movable sleeve 51 being provided in the shock-absorbing mechanism 5, and a first extension sleeve 51 being provided on one side of the first movable sleeve 51 A retractable rod 52, a first spring 53 is provided on the first telescopic rod 52, and a first fixed sleeve 54 is provided on the first telescopic rod 52, a first hinge 55 is provided on one side of the first fixed sleeve 54, a noise reduction mechanism 6 is provided on the exhaust pipe 2, a second movable sleeve 61 is provided in the noise reduction mechanism 6, and a high-temperature resistant shock-absorbing pad 62 is provided on one side of the second movable sleeve 61. By setting this component, the shock-absorbing mechanism 5 can be used to reduce the vibration of the corrugated coil joint 1, and the noise reduction mechanism 6 can be used to reduce the noise of the corrugated coil joint 1.

[0024] As a further feature of the present invention, a second telescopic rod 63 is movably mounted on one side of the high-temperature resistant shock-absorbing pad 62, and a second spring 64 is movably mounted on the second telescopic rod 63. By setting this component, the high-temperature resistant shock-absorbing pad 62 can be used to reduce noise and perform preliminary shock absorption, and the second telescopic rod 63 and the second spring 64 cooperate with each other to achieve noise reduction.

[0025] As a further feature of the present invention, a second fixing sleeve 65 is fixedly installed at the telescopic end of the second telescopic rod 63, and one end of the second spring 64 is fixedly installed on the second fixing sleeve 65. By setting this component, the second spring 64 can be limited and fixed by the second fixing sleeve 65 on the second telescopic rod 63.

[0026] As a further feature of the present invention, a second hinge 66 is movably installed at the telescopic end of the second telescopic rod 63, and a limiting sleeve 67 is movably installed on one side of the second hinge 66. The limiting sleeve 67 is fixedly installed on the exhaust pipe 2. By setting this component, the second hinge 66 can be used to adjust the work as needed.

[0027] As a further feature of the present invention, the first movable sleeve 51 is movably mounted on the exhaust pipe 2, the bottom end of the first telescopic rod 52 is movably mounted on the first movable sleeve 51, and the first spring 53 is movably mounted on the first telescopic rod 52. By setting this component, the first movable sleeve 51 can movably drive the first telescopic rod 52 to extend and retract, and the first telescopic rod 52 can drive the first spring 53 to contract.

[0028] As a further feature of the present invention, the first fixing sleeve 54 is fixedly mounted on the telescopic end of the first telescopic rod 52, one end of the first spring 53 is fixedly mounted on the first fixing sleeve 54, one end of the first hinge 55 is fixedly mounted on the first telescopic rod 52, and the other end of the first hinge 55 is movably mounted on the threaded sleeve 4. By setting this component, the first spring 53 can be limited and fixed by the first fixing sleeve 54.

[0029] As a further feature of the present invention, the second movable sleeve 61 is movably installed on the exhaust pipe 2, and the second movable sleeve 61 is in contact with the first movable sleeve 51. The high-temperature resistant shock-absorbing pad 62 is fixedly installed on the second movable sleeve 61. By setting this component, the high-temperature resistant shock-absorbing pad 62 and the second telescopic rod 63 can be driven by the second movable sleeve 61 to move.

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A vibration reduction and noise reduction device for a corrugated flexible joint of an automobile, comprising a corrugated flexible joint (1), an exhaust pipe (2), an exhaust pipe (2) provided on one side of the corrugated flexible joint (1), a connecting assembly (3) provided on one end of the corrugated flexible joint (1), and a threaded sleeve (4) provided on the other end of the corrugated flexible joint (1), the exhaust pipe (2) being movably mounted on the corrugated flexible joint (1) via the threaded sleeve (4), characterized in that: A shock absorbing mechanism (5) is provided at one end of the corrugated coil joint (1), a first movable sleeve (51) is provided in the shock absorbing mechanism (5), a first telescopic rod (52) is provided on one side of the first movable sleeve (51), a first spring (53) is provided on the first telescopic rod (52), and a first fixed sleeve (54) is provided on the first telescopic rod (52), a first hinge (55) is provided on one side of the first fixed sleeve (54), a noise reduction mechanism (6) is provided on the exhaust pipe (2), a second movable sleeve (61) is provided in the noise reduction mechanism (6), and a high-temperature resistant shock-absorbing pad (62) is provided on one side of the second movable sleeve (61).

2. The vibration and noise reduction device for a corrugated flexible joint of an automobile according to claim 1, characterized in that: A second telescopic rod (63) is movably mounted on one side of the high-temperature resistant shock-absorbing pad (62), and a second spring (64) is movably mounted on the second telescopic rod (63).

3. The vibration and noise reduction device for a corrugated flexible joint of an automobile according to claim 2, characterized in that: A second fixing sleeve (65) is fixedly mounted on the telescopic end of the second telescopic rod (63), and one end of the second spring (64) is fixedly mounted on the second fixing sleeve (65).

4. The vibration and noise reduction device for a corrugated flexible joint of an automobile according to claim 3, characterized in that: A second hinge (66) is movably mounted on the telescopic end of the second telescopic rod (63), and a limiting sleeve (67) is movably mounted on one side of the second hinge (66), wherein the limiting sleeve (67) is fixedly mounted on the exhaust pipe (2).

5. The vibration and noise reduction device for a corrugated flexible joint of an automobile according to claim 1, characterized in that: The first movable sleeve (51) is movably mounted on the exhaust pipe (2), the bottom end of the first telescopic rod (52) is movably mounted on the first movable sleeve (51), and the first spring (53) is movably mounted on the first telescopic rod (52).

6. The vibration and noise reduction device for a corrugated flexible joint of an automobile according to claim 1, characterized in that: The first fixing sleeve (54) is fixedly mounted on the telescopic end of the first telescopic rod (52), one end of the first spring (53) is fixedly mounted on the first fixing sleeve (54), one end of the first hinge (55) is fixedly mounted on the first telescopic rod (52), and the other end of the first hinge (55) is movably mounted on the threaded sleeve (4).

7. The vibration and noise reduction device for a corrugated flexible joint of an automobile according to claim 1, characterized in that: The second movable sleeve (61) is movably mounted on the exhaust pipe (2), and the second movable sleeve (61) is fitted with the first movable sleeve (51), and the high-temperature resistant shock-absorbing pad (62) is fixedly mounted on the second movable sleeve (61).

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