Segmented exhaust pipe sealing ring

Abstract

The utility model relates to a sectional type exhaust pipe sealing ring, which belongs to the technical field of sealing rings and comprises a sealing ring body, a rubber pad and a wave spring, the rubber pad is mounted on the outer side of the sealing ring body through a mounting component, the mounting component comprises an arc-shaped metal strip, annular grooves are arranged at two ends of the outer side of the rubber pad, and the arc-shaped metal strip is mounted in the annular grooves. A square groove is formed in one end of the arc-shaped metal strip, a first arc-shaped strip is fixedly installed at the other end of the arc-shaped metal strip, circular cavities are formed in the rubber pad in a circumferential array mode, the wave springs are fixedly installed in the circular cavities, and limiting columns are symmetrically installed in the circular cavities. The impact load of high-frequency bumping on the sealing ring body is remarkably reduced, so that fatigue damage caused by vibration of the sealing ring body is reduced, the service life is prolonged, the limiting columns can limit excessive compression or deviation of the wave springs, it is guaranteed that force transmission is uniform in the buffering process, the rubber pad is convenient to disassemble and replace, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, and in particular to a segmented exhaust pipe sealing ring. Background Technology

[0002] A segmented exhaust pipe sealing ring is a component used to seal the joints of segmented exhaust pipes, ensuring that the exhaust gases emitted by the engine flow along the designed path and preventing leakage at the joints. If the joint gap is too large, it will lead to serious leakage, deteriorating engine combustion, performance, and emissions. The exhaust pipe temperature fluctuates greatly during engine operation, and the sealing ring must adapt to this thermal expansion and contraction, maintaining good sealing performance at different temperatures.

[0003] For example, the announcement number CN219888718U describes a segmented exhaust pipe sealing ring, belonging to exhaust pipe sealing technology. It includes a hollow sealing ring, a pushing sealing ring, a telescopic connecting belt, and a telescopic annular airbag. The hollow sealing ring is fixedly installed at one end of the telescopic connecting belt, and the pushing sealing ring is fixedly installed at the other end. The hollow sealing ring is fixedly connected to the pushing sealing ring via the telescopic connecting belt. An annular receiving groove is provided on the outer side of the hollow sealing ring, and the telescopic airbag is fixedly installed inside the annular receiving groove. A compression telescopic rod is provided on one outer wall of the pushing sealing ring, and the telescopic end of the compression telescopic rod is connected to the outer wall of the hollow sealing ring. The inner cavity of the compression telescopic rod is connected to the telescopic annular airbag. A corrosion-resistant membrane is provided on the outer side of the telescopic annular airbag. This utility model combines multiple sealing methods, can adapt to different sealing environments, and can ensure a high-efficiency sealing effect. It is simple and convenient to use and highly practical.

[0004] Currently, common segmented exhaust pipe sealing rings have certain problems in practical applications. First, the sealing rings have poor shock resistance. When vehicles are driving under complex road conditions, the high-frequency impacts generated by road vibrations and bumps can easily damage the sealing ring structure, leading to seal failure. Second, the rubber gaskets are usually fixedly installed, tightly fitting to the outside of the sealing ring. When the rubber gaskets wear out or age due to long-term use, the disassembly process is cumbersome and complicated, which is not only time-consuming and labor-intensive, but also increases maintenance costs and replacement difficulty. Utility Model Content

[0005] To overcome the technical defects of the existing technology, this utility model provides a segmented exhaust pipe sealing ring, which can improve the shock resistance and facilitate the replacement of the rubber gasket.

[0006] The technical solution adopted in this utility model is as follows: It includes a sealing ring body, a rubber pad, and a wave spring. The rubber pad is installed on the outside of the sealing ring body via an installation assembly. The installation assembly includes an arc-shaped metal strip. Annular grooves are formed at both ends of the outer side of the rubber pad. The arc-shaped metal strip is installed in the annular grooves. A square groove is formed at one end of the arc-shaped metal strip. A first arc-shaped strip is fixedly installed at the other end of the arc-shaped metal strip. One end of the first arc-shaped strip is detachably installed in the square groove. Circular cavities are arranged in a circumferential array inside the rubber pad. The wave spring is fixedly installed in the circular cavity. Limiting posts are symmetrically installed inside the circular cavity. The limiting posts contact the inner side of the wave spring. During use, the limiting posts restrict the position of the wave spring. Several sets of circular cavities are provided. The installation assembly is used to install and fix the rubber pad.

[0007] Preferably, in order to maximize the elastic deformation capability of the rubber pad, both the arc-shaped metal strip and the first arc-shaped strip are made of anodized aluminum alloy.

[0008] Preferably, in order to improve the high temperature resistance of the rubber pad, both the rubber pad and the limiting post are made of fluororubber.

[0009] Preferably, in order to improve the service life of the wave spring, the surface of the wave spring is galvanized to form a zinc plating layer, and the thickness of the zinc plating layer is 10μm.

[0010] Preferably, in order to fix the first arc-shaped strip, a positioning screw is rotatably installed at one end of the arc-shaped metal strip, and a positioning screw hole matching the positioning screw is opened at one end of the first arc-shaped strip, with one end of the positioning screw extending into the positioning screw hole.

[0011] Preferably, in order to ensure that the elastic potential energy generated by the wave spring can be stably released during repeated compression, the wave spring is made of stainless steel.

[0012] The beneficial effects of this utility model are as follows: When in use, the rubber pad and its internal wave spring can absorb the vibration energy during vehicle operation, significantly reducing the impact load of high-frequency bumps on the sealing ring body, thereby reducing fatigue damage to the sealing ring body caused by vibration and extending its service life. The limiting post can limit the excessive compression or displacement of the wave spring, ensuring uniform force transmission during the buffering process, further improving the anti-vibration stability. At the same time, it is also convenient to disassemble and replace the rubber pad, saving time and effort and greatly reducing the difficulty of replacement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2This is a schematic diagram of the rubber pad connection structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the wave spring connection structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the connection structure of the mounting components of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Sealing ring body; 2. Rubber pad; 3. Wave spring; 4. Mounting assembly; 401. Arc-shaped metal strip; 402. First arc-shaped strip; 403. Positioning screw; 5. Annular groove; 6. Limiting post. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0019] like Figures 1-4As shown, this embodiment provides a segmented exhaust pipe sealing ring, including a sealing ring body 1, a rubber pad 2, and a wave spring 3. The rubber pad 2 is installed on the outside of the sealing ring body 1 via a mounting assembly 4. The mounting assembly 4 includes an arc-shaped metal strip 401. Annular grooves 5 are formed at both ends of the outer side of the rubber pad 2. The arc-shaped metal strip 401 is installed in the annular grooves 5. A square groove is formed at one end of the arc-shaped metal strip 401. A first arc-shaped strip 402 is fixedly installed at the other end of the arc-shaped metal strip 401. One end of the first arc-shaped strip 402 is detachably installed in the square groove. Circular cavities are formed in a circumferential array inside the rubber pad 2. The wave spring 3 is fixedly installed in the circular cavities. A limiting post 6 is symmetrically installed inside the circular cavity. The limiting post 6 contacts the inner side of the wave spring 3. The arc-shaped metal strip 401 and the first arc-shaped strip 402 are both made of anodized aluminum alloy. The rubber pad 2 and the limiting post 6 are both made of fluororubber. The surface of the wave spring 3 is galvanized to form a zinc layer with a thickness of 10μm. The wave spring 3 is made of stainless steel. In use, the arc-shaped metal strip 401 and the first arc-shaped strip 402 are made of anodized aluminum alloy. This ensures structural strength while reducing the overall weight, avoiding the bulkiness of traditional metal parts. The anodizing treatment further improves surface hardness and corrosion resistance, preventing rust. To prevent disassembly jamming caused by corrosion, the fluororubber pad 2 and the limiting post 6, made of fluororubber, possess excellent high-temperature resistance, oil resistance, and chemical corrosion resistance. They maintain good elasticity and sealing performance under harsh working conditions, reducing the risk of leakage due to material aging. The 10μm thick galvanized layer on the surface of the wave spring 3 forms a dense anti-corrosion layer through electrochemical deposition, effectively resisting corrosion from moisture, salt spray, and other corrosive media, extending the service life of the wave spring 3, and ensuring long-term stable seismic performance. Moreover, the wave spring 3 is made of stainless steel, which combines high strength and fatigue resistance, maintaining elastic deformation capacity under long-term vibration environments. When subjected to road vibration and bumps... During impact, the rubber pad 2 and the wave spring 3 absorb the vibration energy during vehicle operation. The rubber pad 2 absorbs high-frequency, small-amplitude vibrations, while the wave spring 3 handles low-frequency, large loads. Together, they achieve wide-frequency vibration reduction, which can significantly reduce the impact load of bumps on the sealing ring body 1, thereby reducing fatigue damage to the sealing ring body 1 caused by vibration and extending its service life. The limiting post 6 can limit the excessive compression or displacement of the wave spring 3, ensuring uniform force transmission during the buffering process and further improving the seismic stability. When it is necessary to disassemble and replace the rubber pad 2 and the wave spring 3, they can be disassembled through the mounting component 4, which is convenient, quick, time-saving, labor-saving, and easy to replace.

[0020] like Figure 4As shown, a positioning screw 403 is rotatably installed at one end of the arc-shaped metal strip 401, and a positioning screw hole matching the positioning screw 403 is opened at one end of the first arc-shaped strip 402. One end of the positioning screw 403 extends into the positioning screw hole. When it is necessary to disassemble and replace the rubber pad 2 and the wave spring 3, first manually rotate the positioning screw 403 to disengage one end from the positioning screw hole, thereby releasing the fixing effect on the first arc-shaped strip 402. Then, move the first arc-shaped strip 402 out of the square groove to release the fixing effect on the rubber pad 2. Finally, it can be disassembled, which greatly reduces the replacement time.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A segmented exhaust pipe seal ring comprising a seal ring body (1), a rubber pad (2) and a wave spring (3), characterized in that: The rubber pad (2) is installed outside the sealing ring body (1) through a mounting assembly (4), the mounting assembly (4) comprises an arc-shaped metal strip (401), annular grooves (5) are formed at both ends of the outer side of the rubber pad (2), the arc-shaped metal strip (401) is installed in the annular grooves (5), a square groove is formed at one end of the arc-shaped metal strip (401), a first arc-shaped strip (402) is fixedly installed at the other end of the arc-shaped metal strip (401), one end of the first arc-shaped strip (402) is detachably installed in the square groove, circular cavities are formed in a circular array inside the rubber pad (2), the wave-shaped spring (3) is fixedly installed in the circular cavities, limit posts (6) are symmetrically installed inside the circular cavities, and the limit posts (6) are in contact with the inner side of the wave-shaped spring (3).

2. The segmented tailpipe seal ring of claim 1, wherein: The arc-shaped metal strip (401) and the first arc-shaped strip (402) are both made of an anodized aluminum alloy material.

3. The segmented tailpipe seal ring of claim 1, wherein: The rubber pad (2) and the limit posts (6) are both made of a fluorine rubber material.

4. The segmented tailpipe seal ring of claim 1, wherein: The surface of the wave-shaped spring (3) is subjected to a galvanizing treatment to form a galvanized layer, and the thickness of the galvanized layer is 10 micrometers.

5. The segmented tailpipe seal ring of claim 1, wherein: One end of the arc-shaped metal strip (401) is rotatably installed with a positioning screw (403), a positioning screw hole matched with the positioning screw (403) is formed at one end of the first arc-shaped strip (402), and one end of the positioning screw (403) extends into the positioning screw hole.

6. The segmented tailpipe seal ring of claim 1, wherein: The wave-shaped spring (3) is made of a stainless steel material.

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