Strong sealing flange of automobile engine exhaust system

Abstract

The utility model relates to the technical field of automobile engine exhaust systems, and discloses an automobile engine exhaust system strong sealing flange which comprises a first flange and a second flange, a clamping block is fixed to the bottom end of the second flange, a clamping groove matched with the clamping block in width is formed in the first flange, and the clamping groove is matched with the clamping block in width. A clamping groove is formed in the first flange, a movable clamping plate is arranged in the clamping groove in a sliding mode, a movable rod is fixed to one end of the movable clamping plate, a sliding groove matched with the movable rod in shape is formed in the first flange, and a sealing top plate is fixed to the top face of the clamping groove. The clamping block is arranged in the first flange, and the clamping groove matched with the clamping block is formed in the first flange, so that when the first flange and the second flange are connected again, the clamping block is clamped into the clamping groove, the clamping block is limited by moving the clamping plate, and the problems that according to traditional flange design, sealing is not tight, leakage is prone to occurring, normal work of an exhaust system is affected, and the service life of the exhaust system is prolonged are solved. And the negative influence on the performance of the engine is even caused.

Description

Technical Field

[0001] The utility model application relates to the technical field of automobile engine exhaust systems, in particular to a strong sealing flange for automobile engine exhaust systems. Background Art

[0002] An automobile engine is a machine that converts other forms of energy into mechanical energy, which is then used to propel the vehicle. It is a core component of the vehicle, responsible for providing the power it needs to operate. The exhaust system is a comprehensive system that collects and processes exhaust gases to reduce pollution, quiet the environment, and ensure efficient exhaust emissions. The strong sealing flange is a type of sealing device used to connect exhaust systems.

[0003] As a key connecting component in the exhaust system, the sealing performance of the flange directly affects the overall efficiency and performance of the exhaust system. Traditional flange designs often have problems such as poor sealing and easy leakage, which affect the normal operation of the exhaust system and even have a negative impact on engine performance. Summary of the Invention

[0004] In order to solve the problems that traditional flange designs often have such as loose sealing and easy leakage, which affect the normal operation of the exhaust system and even have a negative impact on engine performance, the utility model provides a strong sealing flange for an automobile engine exhaust system to solve the above problems.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A strong sealing flange for an automobile engine exhaust system comprises a first flange and a second flange, wherein a snap block is fixed to the bottom end of the second flange, a slot matching the width of the snap block is provided inside the first flange, a movable card plate is slidably provided inside the slot, a movable rod is fixed to one end of the movable card plate, a sliding groove matching the shape of the movable rod is provided inside the first flange, a sealing top plate is fixed to the top surface of the slot, and the snap block and the movable card plate are both provided with rounded corners on their sides close to each other.

[0007] Furthermore, a spring is sleeved on the movable rod, and a limiting plate is fixed on a side of the movable clamping plate away from the movable rod.

[0008] Furthermore, the bottom end of the sealing top plate is in contact with the top surface of the movable clamping plate, and the top surface of the sealing top plate and the top surface of the first flange are located in the same plane.

[0009] Furthermore, the height of the engaging block is the same as that of the engaging slot, and the shape of the movable card plate matches the shape of the engaging block.

[0010] Furthermore, the upper half of the engaging block is shaped as an arc-shaped plate, and the width of the top surface of the engaging block is the same as the width from one side of the sealing top plate to the inner wall of the engaging groove.

[0011] Furthermore, one end of the spring is fixedly connected to the movable clamping plate, and the other end of the spring is fixedly connected to the inner wall of the clamping slot.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. In the utility model, a locking block is provided on the second flange, and a locking groove cooperating with the locking block is formed inside the first flange. When the first flange and the second flange are reconnected, the locking block is locked into the locking groove, and the locking block is limited by moving the clamping plate. This solves the problems of traditional flange design such as poor sealing and easy leakage, which affect the normal operation of the exhaust system and even have a negative impact on engine performance.

[0014] 2. In the present invention, rounded corners are provided on the sides of the locking block and the movable card plate close to each other, so that when the staff rotates the second flange, the locking block can be easily pushed into the interior of the movable card plate. At the same time, a limit plate is provided on the movable card plate to prevent the spring from pushing the movable card plate to fit inside the card slot, which would cause the locking block to be difficult to fit under the movable card plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 is a schematic diagram of a three-dimensional structure according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the structure after opening in the embodiment shown;

[0018] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the structure after opening in the embodiment shown;

[0019] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the locking assembly structure in the embodiment shown.

[0020] The meanings of the reference numerals in the figure are: 1. first flange; 2. second flange; 3. snap-fit ​​block; 4. snap-fit ​​groove; 5. sealing top plate; 6. movable snap-fit ​​plate; 7. movable rod; 8. spring; 9. sliding groove; 10. limit plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, features, and advantages of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A strong sealing flange for an automobile engine exhaust system comprises a first flange 1 and a second flange 2, a locking block 3 is fixed to the bottom end of the second flange 2, a locking groove 4 is provided inside the first flange 1 and the width of the locking block 3 is matched, a movable card plate 6 is slidingly provided inside the slot 4, a movable rod 7 is fixed to one end of the movable card plate 6, a sliding groove 9 is provided inside the first flange 1 and the shape of the movable rod 7 is matched, a sealing top plate 5 is fixed to the top surface of the slot 4, and the locking block 3 and the movable card plate 6 are both provided with rounded corners on the sides close to each other, so that the locking block 3 and the movable card plate 6 are engaged with each other.

[0023] Specifically, the bottom end of the sealing top plate 5 is in contact with the top surface of the movable card plate 6, the top surface of the sealing top plate 5 and the top surface of the first flange 1 are located in the same plane, the height of the locking block 3 is the same as the height of the card slot 4, the shape of the movable card plate 6 is matched with the shape of the locking block 3, the shape of the upper half of the locking block 3 is an arc-shaped plate, the width of the top surface of the locking block 3 is the same as the width from one side of the sealing top plate 5 to the inner wall of the card slot 4, thereby ensuring the sealing between the locking block 3 and the movable card plate 6.

[0024] As an optimization solution, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a spring 8 is sleeved on the movable rod 7, and a limiting plate 10 is fixed to the side of the movable clamping plate 6 away from the movable rod 7, so that the clamping block 3 is more easily clamped into the interior of the movable clamping plate 6.

[0025] Specifically, one end of the spring 8 is fixedly connected to the movable card plate 6 , and the other end of the spring 8 is fixedly connected to the inner wall of the card slot 4 , thereby improving the sealing performance between the engaging block 3 and the movable card plate 6 .

[0026] Working principle: After the staff aligns the locking block 3 with the locking slot 4, the second flange 2 is covered on the first flange 1, and then the second flange 2 is rotated to drive the locking block 3 to rotate, so that the locking block 3 moves toward the inside of the movable card plate 6. At the same time, the rounded corners on one side of the locking block 3 and the movable card plate 6 allow the locking block 3 to easily slide into the inside of the movable card plate 6. At the same time, the locking block 3 pushes the movable card plate 6 into the sliding groove 9. At this time, the spring 8 is compressed and accumulates force, so that the spring 8 pushes the movable card plate 6 toward the locking block 3, so that the movable card plate 6 and the locking block 3 are locked and fixed, thereby making the first flange 1 and the second flange 2 locked and sealed.

[0027] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and scope of the appended claims are intended to be included herein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A strong sealing flange for an automobile engine exhaust system, comprising a first flange (1) and a second flange (2), characterized in that: A locking block (3) is fixed to the bottom end of the second flange (2), a locking groove (4) matching the width of the locking block (3) is provided inside the first flange (1), a movable card plate (6) is slidably provided inside the locking groove (4), a movable rod (7) is fixed to one end of the movable card plate (6), a sliding groove (9) matching the shape of the movable rod (7) is provided inside the first flange (1), a sealing top plate (5) is fixed to the top surface of the locking groove (4), and the locking block (3) and the movable card plate (6) are both provided with rounded corners on their sides close to each other.

2. The strong sealing flange for automobile engine exhaust system according to claim 1, characterized in that: A spring (8) is sleeved on the movable rod (7), and a limiting plate (10) is fixed on the side of the movable clamping plate (6) away from the movable rod (7).

3. The strong sealing flange for automobile engine exhaust system according to claim 1, characterized in that: The bottom end of the sealing top plate (5) is in contact with the top surface of the movable clamping plate (6), and the top surface of the sealing top plate (5) and the top surface of the first flange (1) are located in the same plane.

4. The strong sealing flange for automobile engine exhaust system according to claim 1, characterized in that: The height of the engaging block (3) is the same as that of the engaging slot (4), and the shape of the movable card plate (6) matches that of the engaging block (3).

5. The strong sealing flange for automobile engine exhaust system according to claim 1, characterized in that: The upper half of the locking block (3) is in the shape of an arc-shaped plate, and the width of the top surface of the locking block (3) is the same as the width from one side of the sealing top plate (5) to the inner wall of the locking groove (4).

6. The strong sealing flange for automobile engine exhaust system according to claim 2, characterized in that: One end of the spring (8) is fixedly connected to the movable clamping plate (6), and the other end of the spring (8) is fixedly connected to the inner wall of the clamping slot (4).

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