Exhaust pipe end cover convenient to disassemble

The dual-safety structure of magnetic pre-fixation and mechanical locking solves the problems of inconvenient disassembly and assembly and vibration loosening of the exhaust pipe end cap in a confined space, achieving convenient disassembly and assembly and vibration-resistant loosening.

CN224396568UActive Publication Date: 2026-06-23NINGBO SHENGCHOU DIE-CASTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SHENGCHOU DIE-CASTING CO LTD
Filing Date
2025-07-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing automotive exhaust pipe end caps are inconvenient to install and remove in confined spaces and are prone to loosening due to vibration. Traditional bolt connections are time-consuming and labor-intensive, and are prone to leakage during vehicle operation.

Method used

It adopts a dual-safety structure of magnetic pre-fixation and mechanical locking. Through the geometric engagement of the arc-shaped convex ring and the annular groove, the guiding and limiting of the L-shaped iron block and the L-shaped groove, and the double fixation of the strong magnetic block and the locking rod, a three-dimensional constraint is formed, which enables convenient disassembly and assembly and vibration-resistant loosening.

Benefits of technology

It enables convenient disassembly and assembly in confined spaces, prevents end caps from loosening due to vibration, reduces maintenance time and costs, improves installation efficiency, and ensures sealing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224396568U_ABST
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Abstract

The utility model relates to exhaust pipe end cover technical field, especially exhaust pipe end cover convenient to detach, including cylinder, exhaust pipe body, upper end cover, lower end cap, annular groove, arc convex ring, L type groove, L type iron block, strong magnetic block, locking rod, locking hole, arc clamping seat and adjusting assembly, the side wall of cylinder is set up with annular groove, the one side of cylinder is provided with upper end cover, the one side of cylinder is provided with lower end cap, the inner wall of upper end cover and the inner wall of lower end cap are fixed respectively with arc convex ring, the both sides of the bottom of upper end cover are provided with L type groove, the inside fixed setting of L type groove has strong magnetic block, the both sides of the top of lower end cap are fixed with L type iron block, the inside through of L type iron block is provided with two locking holes, the utility model relates to an exhaust pipe end cover convenient to detach in the use process, and then can realize the convenient dismouting of end cover in the narrow space, and effectively avoid the end cap to shake off in the vehicle driving process.
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Description

Technical Field

[0001] This utility model relates to the field of exhaust pipe end cap technology, and in particular to an exhaust pipe end cap that is easy to disassemble. Background Technology

[0002] Automotive exhaust bellows, also known as automotive exhaust hoses, are installed in the exhaust pipe between the engine exhaust manifold and the muffler, making the entire exhaust system flexibly connected. This serves to reduce vibration and noise, facilitate installation, and extend the life of the exhaust muffler system. In current technology, end caps are often fitted onto the end of the muffler body and the outside of the automotive exhaust pipe. However, existing automotive exhaust pipe end caps are not convenient for personnel to assemble quickly and stably, and the operation is cumbersome and the use is limited.

[0003] When exhaust pipe end caps are in use, existing technologies typically employ bolted or flanged connections, using threaded fasteners to fix the end cap to the cylinder. While these traditional connection methods can meet basic sealing requirements, they have significant drawbacks in practical applications. On one hand, bolt installation requires specialized tools to tighten each bolt individually, and disassembly also requires reverse operation, resulting in time-consuming and labor-intensive maintenance. On the other hand, the continuous vibration generated by the exhaust pipe during vehicle operation can easily cause the threads to loosen, leading to end cap displacement or even leakage. Especially under harsh conditions such as high temperature and corrosion, the wear of the threaded pair and the thermal expansion and contraction effect will further exacerbate the risk of connection failure. Specifically, bolted connections only achieve fixation through axial preload, lacking a multi-dimensional constraint mechanism. When the exhaust pipe undergoes multi-directional displacement due to engine vibration and road impact, a single threaded pair is insufficient to resist stress in multiple directions. Furthermore, traditional end cap designs do not consider the guidance and temporary fixing requirements during assembly. Operators must simultaneously complete end cap positioning and bolt alignment in a confined space, resulting in low installation accuracy and poor efficiency.

[0004] Therefore, to address the aforementioned issues of inconvenience in easily assembling and disassembling the end cap in confined spaces, and the difficulty in preventing the end cap from loosening due to vibration during vehicle operation, an easily detachable exhaust pipe end cap can be designed. When disassembling the upper and lower end caps, firstly, pull the locking rod outwards to disengage it from the locking hole, thus unlocking the L-shaped iron block. Then, pull the lower end cap downwards to detach it from the end of the cylinder. Next, pull the upper end cap upwards to detach it from the end of the cylinder, thereby achieving convenient assembly and disassembly. As a result, the device adopts a dual-safety structure of magnetic pre-fixation and mechanical locking. During installation, the end cap can be easily positioned and locked. Disassembly does not require tools, solving the problem of time-consuming and laborious traditional bolt connections. Through the geometric engagement of the arc-shaped convex ring and the annular groove, the guiding and limiting of the L-shaped iron block and the L-shaped groove, and the double fixation of the strong magnetic block and the locking rod, a three-dimensional constraint is formed, which effectively prevents the end cap from loosening due to vibration. This allows for convenient disassembly and assembly of the end cap in confined spaces, and effectively prevents the end cap from loosening due to vibration during vehicle operation. Utility Model Content

[0005] To overcome the problems that require special tools to tighten the bolts one by one when installing the exhaust pipe end cap, and that the disassembly process also requires reverse operation, resulting in time-consuming and laborious maintenance, and that the continuous vibration generated by the exhaust pipe during vehicle operation can easily cause the threads to loosen, causing the end cap to shift or even leak, thus making it inconvenient to easily install and remove the end cap in a confined space, and also making it difficult to prevent the end cap from loosening due to vibration during vehicle operation.

[0006] The technical solution of this utility model is as follows: an exhaust pipe end cap that is easy to disassemble, comprising a cylinder, an exhaust pipe body, an upper end cap, a lower end cap, an annular groove, an arc-shaped convex ring, an L-shaped groove, an L-shaped iron block, a strong magnetic block, a locking rod, a locking hole, an arc-shaped bracket, and an adjustment component. The exhaust pipe body is arranged inside the cylinder. An annular groove is opened on the side wall of the cylinder. An upper end cap is arranged on one side of the cylinder. A lower end cap is arranged on one side of the cylinder. Arc-shaped convex rings are fixedly arranged on the inner walls of the upper end cap and the lower end cap, respectively. L-shaped grooves are opened on both sides of the bottom of the upper end cap. A strong magnetic block is fixedly arranged inside the L-shaped groove. L-shaped iron blocks are fixedly arranged on both sides of the top of the lower end cap. Two sets of locking holes are opened through the L-shaped iron blocks. Locking rods are arranged inside the locking holes. Two sets of arc-shaped brackets are arranged on the outside of the exhaust pipe body. Two sets of adjustment components are fixedly arranged on both sides of the outer wall of the upper end cap.

[0007] Preferably, when the exhaust pipe end cap is in use, during installation, first, the upper end cap is vertically inserted into the end of the cylinder from above. The arc-shaped convex ring on its inner wall engages with the annular groove on the side wall of the cylinder to form initial positioning. Then, the locking rod is pulled outward to retract into the interior of the upper cover plate. Subsequently, the lower end cap is vertically inserted into the end of the cylinder from below. The two L-shaped iron blocks on the top are inserted into the two L-shaped grooves on the bottom of the upper end cap, respectively. Temporary fixation is achieved by the magnetic attraction between the strong magnetic block and the L-shaped iron blocks. When the locking hole of the L-shaped iron block is aligned with the locking rod, the locking rod is released and inserted into the locking hole to form a mechanical lock, completing the stable connection between the upper and lower end caps and the cylinder. At this time, the exhaust pipe penetrates the cylinder, and its outer wall is clamped by the upper and lower arc-shaped brackets. The arc-shaped brackets are connected by an elastic buffer system, which can effectively absorb the vibration energy generated by the exhaust pipe during vehicle operation. When the upper end cap and the lower end cap are... When disassembling the cover, firstly, pull the locking rod outward to disengage it from the locking hole, causing the L-shaped iron block to be in the unlocked state. Then, pull the lower end cover downward to detach it from the end of the cylinder. Next, pull the upper end cover upward to detach it from the end of the cylinder, thus achieving convenient disassembly and assembly. This device adopts a double-safety structure of magnetic pre-fixation and mechanical locking. During installation, the end cover can be easily positioned and locked. No tools are required for disassembly, solving the problem of time-consuming and laborious traditional bolt connections. Through the geometric engagement of the arc-shaped convex ring and the annular groove, the guiding and limiting of the L-shaped iron block and the L-shaped groove, and the double fixation of the strong magnetic block and the locking rod, a three-dimensional constraint is formed, effectively preventing the end cover from loosening due to vibration. This allows for convenient disassembly and assembly of the end cover in confined spaces, and effectively prevents the end cover from loosening due to vibration during vehicle operation.

[0008] Preferably, the exhaust pipe extends through the interior of the cylinder, the upper end cap is positioned above the lower end cap, the arc-shaped convex ring engages with the arc-shaped groove, the L-shaped iron block engages with the L-shaped slot, the L-shaped iron block is magnetically connected to the strong magnetic block, and the locking rod engages with the locking hole.

[0009] Preferably, the adjustment assembly includes a support frame, a guide rod, a guide plate, a locking spring, and a toggle frame. Two sets of support frames are fixedly installed on both sides of the outer wall of the upper end cover. A guide rod is fixedly installed inside the support frame. A guide plate is installed on the side wall of the guide rod. The guide plate is slidably connected to the guide rod. The locking rod is slidably connected to the side wall of the upper end cover. A locking spring is installed inside the guide frame. A toggle frame is fixedly installed on the outer wall of the guide plate.

[0010] Preferably, the outer ends of the two sets of locking rods are fixedly connected to the inner walls of both ends of the guide plate, one end of the locking spring is fixedly connected to the inner wall of the support frame, and the other end of the locking spring is fixedly connected to the outer wall of the guide plate.

[0011] Preferably, two sets of slide rails are fixedly installed inside the upper end cover and the lower end cover, respectively. The slide rails have grooves inside, and slide rods are fixedly installed inside the grooves. Damping blocks are installed on the side walls of the slide rods. The damping blocks are slidably connected to the slide rods, and pressure springs are installed on both the upper and lower surfaces of the damping blocks.

[0012] Preferably, one end of the pressure spring is fixedly connected to the inner wall of the damping block, and the other end of the pressure spring is fixedly connected to the inner wall of the slide groove. The pressure spring is located outside the slide rod.

[0013] Preferably, the inner wall of the arc-shaped bracket is in contact with the outer wall of the exhaust pipe body, and two sets of connecting rods are fixedly installed on the inner wall of the arc-shaped bracket. The upper inner wall of the connecting rod is fixedly connected to the side wall of the damping block.

[0014] The beneficial effects of this utility model are:

[0015] When using the exhaust pipe end cap, during installation, first, vertically insert the upper end cap onto the end of the cylinder from above. The arc-shaped convex ring on its inner wall engages with the annular groove on the side wall of the cylinder to form initial positioning. Then, pull the locking rod outwards to retract it into the interior of the upper cover plate. Next, vertically insert the lower end cap onto the end of the cylinder from below. Insert the L-shaped iron blocks on both sides of the top of the lower end cap into the L-shaped grooves on both sides of the bottom of the upper end cap. Temporary fixation is achieved through the magnetic attraction between the strong magnetic block and the L-shaped iron blocks. When the locking holes of the L-shaped iron blocks align with the locking rod, release the locking rod and insert it into the locking holes to form a mechanical lock, completing the stable connection between the upper and lower end caps and the cylinder. At this point, the exhaust pipe penetrates the cylinder, and its outer wall is clamped by the upper and lower arc-shaped brackets. The arc-shaped brackets are connected by an elastic buffer system, which can effectively absorb the vibration energy generated by the exhaust pipe during vehicle operation. When adjusting the upper and lower end caps... During disassembly, firstly, pull the locking rod outward to disengage it from the locking hole, thus unlocking the L-shaped iron block. Then, pull the lower end cap downward to detach it from the end of the cylinder. Next, pull the upper end cap upward to detach it from the end of the cylinder, thus achieving convenient disassembly and assembly. This device adopts a dual-safety structure of magnetic pre-fixation and mechanical locking. During installation, the end cap can be easily positioned and locked. No tools are required for disassembly, solving the problem of time-consuming and laborious traditional bolt connections. Through the geometric engagement of the arc-shaped convex ring and the annular groove, the guiding and limiting of the L-shaped iron block and the L-shaped groove, and the double fixation of the strong magnetic block and the locking rod, a three-dimensional constraint is formed, effectively preventing the end cap from loosening due to vibration. This allows for convenient disassembly and assembly of the end cap in confined spaces, and effectively prevents the end cap from loosening due to vibration during vehicle operation. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of an easily detachable exhaust pipe end cap according to this utility model.

[0017] Figure 2 The diagram shown is an exploded three-dimensional structural diagram of an easily detachable exhaust pipe end cap according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural diagram of the first outer periphery of the upper end cover of an exhaust pipe end cover that is easy to disassemble according to the present invention.

[0019] Figure 4 The diagram shown is a three-dimensional structural diagram of the lower end cover of an exhaust pipe end cover that is easy to disassemble according to the present invention.

[0020] Figure 5 The diagram shown is a three-dimensional structural diagram of the first outer periphery of a locking rod for an easily detachable exhaust pipe end cap according to this utility model.

[0021] Figure 6 The diagram shown is a three-dimensional structural diagram of the first outer periphery of an arc-shaped bracket for an easily detachable exhaust pipe end cap according to this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Cylinder body; 2. Exhaust pipe body; 3. Upper end cover; 4. Lower end cover; 5. Annular groove; 6. Arc-shaped convex ring; 7. L-shaped groove; 8. L-shaped iron block; 9. Strong magnetic block; 10. Locking rod; 11. Locking hole; 12. Arc-shaped card seat; 13. Support frame; 14. Guide rod; 15. Locking spring; 16. Guide plate; 17. Actuating frame; 18. Slide rail; 19. Slide groove; 20. Slide rod; 21. Damping block; 22. Pressure spring; 23. Connecting rod. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1 and Figure 2 This utility model provides an embodiment of an easily detachable exhaust pipe end cap, comprising a cylindrical body 1, an exhaust pipe body 2, an upper end cap 3, a lower end cap 4, an annular groove 5, an arc-shaped convex ring 6, an L-shaped groove 7, an L-shaped iron block 8, a strong magnetic block 9, a locking rod 10, a locking hole 11, an arc-shaped retaining seat 12, and an adjusting assembly. The exhaust pipe body 2 is disposed inside the cylindrical body 1. An annular groove 5 is formed on the side wall of the cylindrical body 1. An upper end cap 3 is disposed on one side of the cylindrical body 1, and a lower end cap 4 is disposed on the other side of the cylindrical body 1. Arc-shaped protruding rings 6 are fixedly installed on the inner wall of end cap 3 and the inner wall of lower end cap 4 respectively. L-shaped grooves 7 are opened on both sides of the bottom of upper end cap 3. Strong magnetic blocks 9 are fixedly installed inside the L-shaped grooves 7. L-shaped iron blocks 8 are fixedly installed on both sides of the top of lower end cap 4. Two sets of locking holes 11 are opened through the interior of L-shaped iron blocks 8. Locking rods 10 are installed inside the locking holes 11. Two sets of arc-shaped brackets 12 are installed on the exterior of exhaust pipe body 2. Two sets of adjustment components are fixedly installed on both sides of the outer wall of upper end cap 3.

[0025] Please see Figure 3 and Figure 5 The exhaust pipe 2 penetrates the interior of the cylinder 1. The upper end cover 3 is positioned above the lower end cover 4. The arc-shaped convex ring 6 engages with the arc-shaped groove. The L-shaped iron block 8 engages with the L-shaped groove 7. The L-shaped iron block 8 is magnetically connected to the strong magnet 9. The locking rod 10 engages with the locking hole 11. Temporary fixation is achieved through the magnetic attraction between the strong magnet 9 and the L-shaped iron block 8. The adjustment assembly includes a support frame 13, a guide rod 14, a guide plate 16, a locking spring 15, and a lever frame 17. Two sets of support frames 13 are fixedly installed on both sides of the outer wall of the upper end cover 3. The guide rod 14 is fixedly installed inside the support frame 13. The guide plate 16 is installed on the side wall of the guide rod 14. The guide plate 16 is slidably connected to the guide rod 14. The locking rod 10 is connected to the upper end cover 3. The sidewalls are slidably connected. A locking spring 15 is installed inside the guide frame. A toggle frame 17 is fixedly installed on the outer wall of the guide plate 16. When the toggle frame 17 is released, the locking spring 15 resets and pushes the guide plate 16 and the locking rod 10 into the locking hole 11 to form a mechanical lock, thus completing the stable connection between the upper and lower end caps and the cylinder 1. The outer ends of the two sets of locking rods 10 are fixedly connected to the inner walls of both ends of the guide plate 16, respectively. One end of the locking spring 15 is fixedly connected to the inner wall of the support frame 13, and the other end of the locking spring 15 is fixedly connected to the outer wall of the guide plate 16. When the toggle frame 17 is released, the locking spring 15 resets and pushes the guide plate 16 and the locking rod 10 into the locking hole 11 to form a mechanical lock, thus completing the stable connection between the upper and lower end caps and the cylinder 1.

[0026] Please see Figure 4 and Figure 6Two sets of slide rails 18 are fixedly installed inside the upper end cover 3 and the lower end cover 4, respectively. A slide groove 19 is opened inside the slide rail 18, and a slide rod 20 is fixedly installed inside the slide groove 19. A damping block 21 is installed on the side wall of the slide rod 20, and the damping block 21 is slidably connected to the slide rod 20. Pressure springs 22 are installed on both the upper and lower surfaces of the damping block 21. The exhaust pipe body 2 penetrates the cylinder body 1, and its outer wall is clamped by two sets of upper and lower arc-shaped brackets 12. The arc-shaped brackets 12 are connected to the damping block 21 inside the slide rail 18. The damping block 21 slides along the slide rod 20 and compresses the upper and lower pressure springs 22, forming an elastic buffer system that can effectively absorb exhaust emissions during vehicle operation. The vibration energy generated by the exhaust pipe body 2 is absorbed by the pressure spring 22. One end of the pressure spring 22 is fixedly connected to the inner wall of the damping block 21, and the other end of the pressure spring 22 is fixedly connected to the inner wall of the slide groove 19. The pressure spring 22 is set outside the slide rod 20. The pressure spring 22 forms an elastic buffer system, which can effectively absorb the vibration energy generated by the exhaust pipe body 2 during vehicle operation. The inner wall of the arc-shaped bracket 12 is in contact with the outer wall of the exhaust pipe body 2. Two sets of connecting rods 23 are fixedly installed on the inner wall of the arc-shaped bracket 12. The upper inner wall of the connecting rod 23 is fixedly connected to the side wall of the damping block 21. The arc-shaped bracket 12 is connected to the damping block 21 in the slide rail 18 through the connecting rod 23.

[0027] When the exhaust pipe end cap is in use, the easily removable exhaust pipe end cap achieves convenient disassembly and assembly as well as shock absorption function through modular combination design and mechanical and magnetic composite locking structure;

[0028] During installation, the upper end cover 3 is first vertically inserted into the end of the cylinder 1 from above. The arc-shaped protruding ring 6 on its inner wall engages with the annular groove 5 on the side wall of the cylinder 1 to form a preliminary positioning. Then, the two side actuating brackets 17 are pulled outwards, which respectively drive the two side guide plates 16 to slide along the guide rod 14 and compress the locking spring 15, so that the locking rod 10 retracts into the inside of the upper cover plate. Then, the lower end cover 4 is vertically inserted into the end of the cylinder 1 from below. The two L-shaped iron blocks 8 on the top are respectively inserted into the two L-shaped grooves 7 on the bottom of the upper end cover 3. Temporary fixation is achieved by the magnetic attraction between the strong magnetic block 9 and the L-shaped iron block 8.

[0029] When the locking hole 11 of the L-shaped iron block 8 is aligned with the locking rod 10, the actuating frame 17 is released, the locking spring 15 is reset and pushes the guide plate 16 and the locking rod 10 into the locking hole 11 to form a mechanical lock, thus completing the stable connection between the upper and lower end caps and the cylinder 1.

[0030] At this time, the exhaust pipe body 2 penetrates the cylinder body 1, and its outer wall is clamped by two sets of upper and lower arc-shaped brackets 12. The arc-shaped brackets 12 are connected to the damping block 21 in the slide rail 18 through the connecting rod 23. The damping block 21 slides along the slide rod 20 and compresses the pressure springs 22 above and below to form an elastic buffer system, which can effectively absorb the vibration energy generated by the exhaust pipe body 2 during the car's operation.

[0031] When disassembling the upper end cover 3 and the lower end cover 4, firstly, pulling the actuating bracket 17 outward will cause the guide plate 16 and the locking rod 10 to slide along the guide rod 14, and cause the locking rod 10 to disengage from the inside of the locking hole 11, so that the L-shaped iron block 8 is in the unlocked state. Then, pulling the lower end cover 4 downward will disengage it from the end of the cylinder 1. Next, pulling the upper end cover 3 upward will disengage it from the end of the cylinder 1, thereby achieving the effect of convenient disassembly and assembly.

[0032] In summary, the arc-shaped bracket 12 and the exhaust pipe body 2 adopt a surface contact design. Together with the pressure spring 22 and the damping block 21, they form an elastic buffer system that can attenuate high-frequency vibrations and reduce the risk of fatigue fracture of the exhaust pipe body 2. The modular design allows the end cap, locking mechanism and shock absorption components to be replaced independently. When a component is damaged, it is not necessary to scrap the whole thing, which reduces maintenance costs. By adjusting the inner diameter of the arc-shaped bracket 12 and the spring stiffness, it can be adapted to exhaust pipe bodies 2 with different pipe diameters to meet the universal needs of multiple vehicle models.

[0033] The device adopts a dual-safety structure of magnetic pre-fixation and mechanical locking. During installation, the end cap can be positioned and locked by simply operating the lever 17. No tools are required for disassembly, solving the problem of time-consuming and laborious traditional bolt connections. Through the geometric engagement of the arc-shaped convex ring 6 and the annular groove 5, the guiding and limiting of the L-shaped iron block 8 and the L-shaped groove 7, and the double fixation of the strong magnetic block 9 and the locking rod 10, a three-dimensional constraint is formed, which effectively prevents the end cap from loosening due to vibration. This allows for convenient disassembly and assembly of the end cap in confined spaces, and effectively prevents the end cap from loosening due to vibration during vehicle operation.

[0034] Through the above steps, when the exhaust pipe end cap is in use, during installation, firstly, the upper end cap 3 is vertically inserted into the end of the cylinder 1 from above. The arc-shaped protruding ring 6 on its inner wall engages with the annular groove 5 on the side wall of the cylinder 1 to form a preliminary positioning. Then, the locking rod 10 is pulled outward to retract into the interior of the upper cover plate. Subsequently, the lower end cap 4 is vertically inserted into the end of the cylinder 1 from below. The two L-shaped iron blocks 8 on the top are respectively inserted into the two L-shaped grooves 7 on the bottom of the upper end cap 3. Temporary fixation is achieved by the magnetic attraction between the strong magnetic block 9 and the L-shaped iron block 8. When the locking hole 11 of the L-shaped iron block 8 is aligned with the locking rod 10, the locking rod 10 is released and inserted into the locking hole 11 to form a mechanical lock, completing the stable connection between the upper and lower end caps and the cylinder 1. At this time, the exhaust pipe 2 penetrates the cylinder 1, and its outer wall is clamped by the upper and lower arc-shaped brackets 12. The arc-shaped brackets 12 are connected by an elastic buffer system, which can effectively absorb the vibration energy generated by the exhaust pipe 2 during vehicle operation. When disassembling the upper end cover 3 and the lower end cover 4, firstly, pull the locking rod 10 outward to disengage it from the locking hole 11, causing the L-shaped iron block 8 to be in the unlocked state. Then, pull the lower end cover 4 downward to disengage it from the end of the cylinder 1. Next, pull the upper end cover 3 upward to disengage it from the end of the cylinder 1, thus achieving convenient disassembly and assembly. This device adopts a double-safety structure of magnetic pre-fixation and mechanical locking. During installation, the end cover can be easily positioned and locked. No tools are required for disassembly, solving the problem of time-consuming and laborious traditional bolt connections. Through the geometric engagement of the arc-shaped convex ring 6 and the annular groove 5, the guiding and limiting of the L-shaped iron block 8 and the L-shaped groove 7, and the double fixation of the strong magnetic block 9 and the locking rod 10, a three-dimensional constraint is formed, effectively preventing the end cover from loosening due to vibration. This allows for convenient disassembly and assembly of the end cover in a narrow space, and effectively prevents the end cover from loosening due to vibration during vehicle operation.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An easily removable exhaust pipe end cap, comprising a cylindrical body (1), characterized in that: It also includes an exhaust pipe body (2), an upper end cap (3), a lower end cap (4), an annular groove (5), an arc-shaped convex ring (6), an L-shaped groove (7), an L-shaped iron block (8), a strong magnetic block (9), a locking rod (10), a locking hole (11), an arc-shaped card seat (12), and an adjustment assembly. The exhaust pipe body (2) is provided inside the cylinder (1). An annular groove (5) is provided on the side wall of the cylinder (1). An upper end cap (3) is provided on one side of the cylinder (1), and a lower end cap (4) is provided on one side of the cylinder (1). The inner wall of the upper end cap (3) and the lower end cap are connected. (4) The inner wall is fixedly provided with arc-shaped protrusions (6), and L-shaped grooves (7) are opened on both sides of the bottom of the upper end cover (3). A strong magnetic block (9) is fixedly installed inside the L-shaped groove (7). L-shaped iron blocks (8) are fixedly installed on both sides of the top of the lower end cover (4). Two sets of locking holes (11) are opened through the L-shaped iron blocks (8). Locking rods (10) are installed inside the locking holes (11). Two sets of arc-shaped card seats (12) are installed on the outside of the exhaust pipe body (2). Two sets of adjustment components are fixedly installed on both sides of the outer wall of the upper end cover (3).

2. The easily removable exhaust pipe end cap according to claim 1, characterized in that: The exhaust pipe body (2) runs through the inside of the cylinder body (1), the upper end cover (3) is set above the lower end cover (4), the arc-shaped convex ring (6) is engaged with the arc-shaped groove, the L-shaped iron block (8) is engaged with the L-shaped groove (7), the L-shaped iron block (8) is magnetically connected with the strong magnetic block (9), and the locking rod (10) is engaged with the locking hole (11).

3. The easily removable exhaust pipe end cap according to claim 1, characterized in that: The adjustment assembly includes a support frame (13), a guide rod (14), a guide plate (16), a locking spring (15), and a toggle frame (17). Two sets of support frames (13) are fixedly installed on both sides of the outer wall of the upper end cover (3). A guide rod (14) is fixedly installed inside the support frame (13). A guide plate (16) is installed on the side wall of the guide rod (14). The guide plate (16) is slidably connected to the guide rod (14). The locking rod (10) is slidably connected to the side wall of the upper end cover (3). A locking spring (15) is installed inside the guide frame. A toggle frame (17) is fixedly installed on the outer wall of the guide plate (16).

4. The easily removable exhaust pipe end cap according to claim 3, characterized in that: The outer ends of the two sets of locking rods (10) are fixedly connected to the inner walls of the two ends of the guide plate (16), one end of the locking spring (15) is fixedly connected to the inner wall of the support frame (13), and the other end of the locking spring (15) is fixedly connected to the outer wall of the guide plate (16).

5. The easily removable exhaust pipe end cap according to claim 1, characterized in that: Two sets of slide rails (18) are fixedly installed inside the upper end cover (3) and the lower end cover (4). The slide rail (18) has a slide groove (19) inside. The slide groove (19) has a slide rod (20) fixedly installed inside. The slide rod (20) has a damping block (21) on its side wall. The damping block (21) is slidably connected to the slide rod (20). The damping block (21) has a pressure spring (22) on both the upper and lower sides.

6. The easily removable exhaust pipe end cap according to claim 5, characterized in that: One end of the pressure spring (22) is fixedly connected to the inner wall of the damping block (21), and the other end of the pressure spring (22) is fixedly connected to the inner wall of the slide groove (19). The pressure spring (22) is located outside the slide rod (20).

7. The easily removable exhaust pipe end cap according to claim 5, characterized in that: The inner wall of the arc-shaped bracket (12) is in contact with the outer wall of the exhaust pipe body (2). Two sets of connecting rods (23) are fixedly installed on the inner wall of the arc-shaped bracket (12). The upper inner wall of the connecting rod (23) is fixedly connected to the side wall of the damping block (21).