Automobile exhaust pipe sealing ring structure not prone to falling off
By designing a sealing ring structure for automobile exhaust pipes including rubber ring, limit ring, fixed cylinder, telescopic spring, slip ring, slide column, clamp plate and arc rod, the sealing ring is solved to remove the exhaust after being heated for a long time. The problem of pipes ensures the circulation effect of exhaust emissions.
Patent Information
- Application Number
- CN202420003297.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-01-02
AI Technical Summary
The sealing ring of the exhaust pipe of the automobile is prone to thermal expansion after being heated for a long time, resulting in a deviation of the axis position and the sealing ring from the pipe fittings, affecting the exhaust gas emission and circulation effect.
A sealing ring structure including rubber ring, limit ring, fixed cylinder, telescopic spring, slip ring, slide column, clamp plate and arc rod are designed. Through the reset force of telescopic spring and arc rod structure of clamp plate, the arc rod structure of clamp plate is ensured. The seal ring shaft center and the exhaust pipe shaft center are in line to prevent disengagement.
Effectively prevent the sealing ring from leaving the exhaust pipe after being heated, maintain the sealing effect, and ensure the circulation effect of exhaust gas emissions.
Smart Images
Figure CN222458347U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile exhaust pipes, in particular to an automobile exhaust pipe sealing ring structure which is not easy to fall off. Background Art
[0002] The automobile exhaust pipe sealing ring is a component device installed between the exhaust pipe and the cylinder head exhaust port to seal the exhaust gas flowing through the automobile exhaust pipe and prevent the high-temperature gas after combustion from leaking from the connection between the two.
[0003] During the use of the automobile exhaust pipe, the automobile exhaust pipe serves as an exhaust device for automobile exhaust gas, which mainly discharges the exhaust gas with a certain amount of heat generated by the operation of the automobile. While the automobile exhaust gas with a certain amount of heat is discharged from the exhaust pipe, part of the heat in the automobile exhaust gas is transferred to the automobile exhaust pipe, and then transferred to the sealing ring of the automobile exhaust pipe sleeve through the automobile exhaust pipe. As a result, the sealing ring sleeved on the inner side of the automobile exhaust pipe expands due to long-term heat, resulting in a certain degree of gap between the sealing ring tightly attached to the automobile exhaust pipe and the wall of the automobile exhaust pipe. The axial position of the sealing ring is easily offset from the axial position of the automobile exhaust pipe on which it acts, and the sealing ring is easily changed into a special shape when heated and separated from the outer side of the automobile exhaust pipe fitting on which it acts, thereby affecting the subsequent emission and circulation effect of the automobile exhaust gas inside the automobile exhaust pipe. Therefore, in view of the above problems, a sealing ring structure for an automobile exhaust pipe that is not easy to fall off is proposed. Utility Model Content
[0004] The utility model aims to provide a sealing ring structure for automobile exhaust pipe which is not easy to fall off, so as to solve the problem that the sealing ring expands due to long-term heating, the axial position of the sealing ring is easily offset from the axial line position of the automobile exhaust pipe on which it acts, and the sealing ring is easily changed into a special shape due to heat and separated from the outer side of the automobile exhaust pipe fitting on which it acts, thereby affecting the subsequent emission and circulation effect of automobile exhaust gas inside the automobile exhaust pipe.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A sealing ring structure for an automobile exhaust pipe which is not easy to fall off comprises a ring body, a rubber ring is fixedly connected to one side of the inner ring of the ring body, a limiting ring is fixedly connected to the side of the rubber ring close to the center of the ring body, a fixing cylinder is fixedly connected to the inner side of the rubber ring, a telescopic spring is arranged on the inner side of the fixing cylinder, a sliding ring is slidably connected to the inner side of the fixing cylinder, a sliding column is fixedly connected to the side of the sliding ring close to the center of the ring body, a clamping plate is fixedly connected to the other end of the sliding column, and an arc rod is fixedly connected to the side of the clamping plate away from the horizontal center of the ring body.
[0007] Preferably, there are four fixed cylinders in total, and the fixed cylinders are evenly distributed inside the ring body. The telescopic spring inside the fixed cylinder is in close contact with the side of the slip ring away from the sliding column, and the sliding column slides inside the fixed cylinder.
[0008] Preferably, the number of the rubber rings and the limiting rings is the same, and the rubber rings are symmetrically arranged on the inner ring of the ring body. The rubber rings are respectively on the same horizontal plane as the upper and lower sections of the ring body. The limiting rings are respectively arranged on the outsides of the two rubber rings. The outer diameter of the limiting ring is the same as the inner diameter of the rubber ring, and the inner diameter of the limiting ring is much smaller than the outer diameter of the rubber ring.
[0009] Preferably, there are four clamping plates, and each of the clamping plates is symmetrically fixed with an arc rod on its outer side. The arc rod and the side of the clamping plate away from the center of the ring body can be completely fitted with the inner wall of the ring body, and the radius of the arc surface of the arc rod close to the ring body to its arc center is much larger than the maximum radius of the limit ring.
[0010] Preferably, the height of the arc rod is the same as that of the limiting ring, the side of the arc rod away from the clamping plate is in close contact with the rubber ring, the side of the limiting ring away from the rubber ring is in close contact with the clamping plate, and the arc rod slides between the two rubber rings.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, by providing the rubber ring, the limit ring, the fixing tube, the telescopic spring, the sliding column, the clamping plate and the arc rod, when the sealing ring is used in the automobile exhaust pipe, the sealing ring gradually expands due to the temperature transmitted by the exhaust gas inside the automobile exhaust pipe, and when the sealing ring is deformed and a gap is generated between the sealing ring and the internal pipe fittings of the automobile exhaust pipe, the clamping plate exerts a compressive force on the telescopic spring inside the fixing tube because the inner ring of the sealing ring is in close contact with the pipe fittings at the action position. Therefore, when a gap is generated between the sealing ring and the internal pipe fittings of the automobile exhaust pipe, the telescopic spring can push the clamping plate to always be closed by its own restoring force. It is closely attached to the outside of the automobile exhaust pipe fitting where the sealing ring acts. At the same time, the arc rod on the outside of the clamping plate slides on the outside of the rubber ring and gradually approaches the limit ring, and is finally restricted by the limit ring to prevent it from detaching. At this time, the clamping plates in four directions are simultaneously subjected to the same telescopic spring force and closely attached to the outside of the automobile exhaust pipe fitting, so as to ensure that the axial position of the sealing ring and the axial center line position of the automobile exhaust pipe fitting where it acts are on the same straight line, preventing the sealing ring from being deformed by heat and detaching from the outside of the automobile exhaust pipe fitting where it acts, thereby affecting the subsequent emission and circulation effect of automobile exhaust gas inside the automobile exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 For this utility model Figure 1Schematic diagram of the structure at A in the middle;
[0015] Figure 3 This is a schematic diagram of the internal structure of the ring body of the utility model;
[0016] Figure 4 For this utility model Figure 3 Schematic diagram of the structure at B in the middle;
[0017] Figure 5 This is a schematic diagram of the structure of the card board of the utility model.
[0018] In the figure: 1, ring body; 2, rubber ring; 3, limit ring; 4, fixing tube; 5, telescopic spring; 6, sliding ring; 7, sliding column; 8, clamping plate; 9, arc rod. DETAILED DESCRIPTION
[0019] 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.
[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0021] See also Figure 1-5 , the utility model provides a technical solution:
[0022] The invention discloses a sealing ring structure for an automobile exhaust pipe which is not easy to fall off, comprising a ring body 1, a rubber ring 2 is fixedly connected to one side of the inner ring of the ring body 1, a limiting ring 3 is fixedly connected to the side of the rubber ring 2 close to the center of the ring body 1, a fixing cylinder 4 is fixedly connected to the inner side of the rubber ring 2, a telescopic spring 5 is arranged inside the fixing cylinder 4, a slip ring 6 is slidably connected to the inner side of the fixing cylinder 4, a sliding column 7 is fixedly connected to the side of the slip ring 6 close to the center of the ring body 1, a clamping plate 8 is fixedly connected to the other end of the clamping plate 7, and an arc rod 9 is fixedly connected to the side of the clamping plate 8 away from the horizontal center of the ring body 1.
[0023] There are 4 fixing tubes 4 in total, and the fixing tubes 4 are evenly distributed on the inner side of the ring body 1. The telescopic spring 5 on the inner side of the fixing tube 4 is in close contact with the side of the sliding ring 6 away from the sliding column 7. The sliding column 7 slides on the inner side of the fixing tube 4, which is convenient for pushing the card plate 8 to be in close contact with the outer side of the automobile exhaust pipe fitting; the number of rubber rings 2 and the limiting rings 3 is the same, and the rubber rings 2 are symmetrically arranged on the inner ring of the ring body 1. The rubber rings 2 are respectively on the same horizontal plane as the upper and lower sections of the ring body 1. The limiting rings 3 are respectively arranged on the outer sides of the two rubber rings 2. The outer diameter of the limiting ring 3 is the same as the inner diameter of the rubber ring 2, and the inner diameter of the limiting ring 3 is much smaller than the outer diameter of the rubber ring 2, which is convenient for assisting the movement stability of the card plate 8 between the two rubber rings 2 The arc rod 9 and the arc rod 9 are symmetrically fixedly connected to the outer side of the card plate 8. The arc rod 9 and the card plate 8 can be completely fitted with the inner wall of the ring body 1 on the side away from the center of the ring body 1. The radius of the arc surface of the arc rod 9 close to the ring body 1 to its arc center is much larger than the maximum radius of the limiting ring 3, which is convenient for limiting the axis of the sealing ring body 1 and the axis of the automobile exhaust pipe fitting to the same position; the height of the arc rod 9 is the same as the height of the limiting ring 3, the side of the arc rod 9 away from the card plate 8 is in close contact with the rubber ring 2, and the side of the limiting ring 3 away from the rubber ring 2 is in close contact with the card plate 8, and the arc rod 9 slides between the two rubber rings 2, which can ensure the stability of the card plate 8 moving between the two rubber rings 2.
[0024] Working process: When the automobile exhaust pipe sealing ring is used, pressure is applied to the card plate 8 between the two rubber rings 2, so that the card plate 8 applies a compressive force to the telescopic spring 5 inside the fixed tube 4 through the sliding column 7 fixedly connected thereto. At the same time, the arc rod 9 on the outside of the card plate 8 that is tightly attached to the limit ring 3 moves with the card plate 8 and moves tightly against the rubber ring 2 until the card plate 8 is completely hidden between the two rubber rings 2. At this time, the sealing ring body 1 can be applied to the outside of the pipe fittings of the automobile exhaust pipe. When the pipe fittings of the automobile exhaust pipe transport high-temperature exhaust gas, part of the exhaust gas heat is transferred to the inside of the sealing ring body 1, so that the ring body 1 expands due to the heat and creates a certain degree of gap with the automobile exhaust pipe fittings it acts on. At this time, the expanded and deformed ring body 1 drives the fixed tube 4 fixedly connected thereto inside to be displaced, so that the telescopic spring 5 inside the fixed tube 4 has expansion space, which can passively push the sliding column 7 in The fixed cylinder 4 moves inside, and at the same time, the sliding columns 7 in four directions push the fixedly connected cardboard 8 to passively move toward the center position of the automobile exhaust pipe fitting where the sealing ring acts under the force of the telescopic spring 5, so as to ensure that the cardboard 8 is always close to the outside of the automobile exhaust pipe fitting. During the movement of the cardboard 8, the arc rods 9 fixedly connected on both sides of the cardboard 8 respectively move close to the two rubber rings 2, and the arc rods 9 gradually move toward the limiting rings 3 fixedly connected to the rubber rings 2. The limiting rings 3 can limit the movement range of the arc rods 9. Under the action of the cardboards 8 in four directions acting at the same time, the axis of the ring body 1 of the sealing ring is always on the same straight line with the axis of the automobile exhaust pipe body, which can effectively prevent the sealing ring from being transformed into a special shape due to expansion, reduce the probability of the sealing ring detaching from the automobile exhaust pipe fitting, and ensure the subsequent discharge and circulation effect of automobile exhaust gas inside the automobile exhaust pipe.
[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 sealing ring structure for an automobile exhaust pipe which is not easy to fall off, comprising a ring body (1), characterized in that: A rubber ring (2) is fixedly connected to one side of the inner ring of the ring body (1); a limit ring (3) is fixedly connected to the side of the rubber ring (2) close to the center of the ring body (1); a fixed cylinder (4) is fixedly connected to the inner side of the rubber ring (2); a telescopic spring (5) is provided on the inner side of the fixed cylinder (4); a slip ring (6) is slidably connected to the inner side of the fixed cylinder (4); a sliding column (7) is fixedly connected to the side of the slip ring (6) close to the center of the ring body (1); a clamping plate (8) is fixedly connected to the other end of the sliding column (7); and an arc rod (9) is fixedly connected to the side of the clamping plate (8) away from the horizontal center of the ring body (1).
2. The automobile exhaust pipe sealing ring structure that is not easy to fall off according to claim 1 is characterized in that: There are four fixed cylinders (4) in total. The fixed cylinders (4) are evenly distributed inside the ring body (1). The telescopic springs (5) inside the fixed cylinders (4) are in close contact with the side of the slip ring (6) away from the sliding column (7), and the sliding column (7) slides inside the fixed cylinder (4).
3. The automobile exhaust pipe sealing ring structure that is not easy to fall off according to claim 1 is characterized in that: The number of the rubber rings (2) and the limiting rings (3) is the same, two. The rubber rings (2) are symmetrically arranged on the inner ring of the ring body (1). The rubber rings (2) are respectively located on the same horizontal plane as the upper and lower sections of the ring body (1). The limiting rings (3) are respectively arranged on the outside of the two rubber rings (2). The outer diameter of the limiting rings (3) is the same as the inner diameter of the rubber rings (2), and the inner diameter of the limiting rings (3) is much smaller than the outer diameter of the rubber rings (2).
4. The automobile exhaust pipe sealing ring structure that is not easy to fall off according to claim 1 is characterized in that: There are four clamping plates (8) in total. The outer sides of the clamping plates (8) are symmetrically fixedly connected with arc rods (9). The arc rods (9) and the side of the clamping plates (8) away from the center of the ring body (1) can be completely fitted with the inner wall of the ring body (1). The radius from the arc surface of the arc rod (9) close to the ring body (1) to its arc center is much larger than the maximum radius of the limit ring (3).
5. The automobile exhaust pipe sealing ring structure that is not easy to fall off according to claim 1 is characterized in that: The height of the arc rod (9) is the same as that of the limiting ring (3); the side of the arc rod (9) away from the clamping plate (8) is in close contact with the rubber ring (2); the side of the limiting ring (3) away from the rubber ring (2) is in close contact with the clamping plate (8); and the arc rod (9) slides between the two rubber rings (2).