Engine seal ring fixing structure

Abstract

This utility model belongs to the field of sealing ring fixing technology, and discloses an engine sealing ring fixing structure, including a pipe one, a ring release pipe connected to the pipe one, a pipe two detachably connected to the ring release pipe, a sealing ring body sleeved on the outside of the ring release pipe, a reinforcing ring connected to both pipe one and pipe two, the reinforcing ring having an annular groove, a threaded rod threadedly connected to the reinforcing ring, a handle connected to the threaded rod, a fastening plate rotatably connected to the threaded rod, the fastening plate being an arc-shaped plate, the fastening plate cooperating with the sealing ring body, a limit rod connected to the fastening plate, the limit rod slidingly connected to the reinforcing ring. This utility model avoids the elastic fatigue problem of springs under long-term compression under engine vibration and temperature cycling, can stably maintain the compressive force on the sealing ring body, and can easily adjust the compressive force individually according to the dimensional changes of the sealing ring body due to wear and aging.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring fixing technology, and in particular to an engine sealing ring fixing structure. Background Technology

[0002] An engine is a device that can convert other forms of energy into mechanical energy. It includes internal combustion engines, external combustion engines, jet engines, electric motors, etc. During the use of jet engines, gas is usually transmitted, and sealing rings are used to seal the connecting parts in the gas transmission process. In order to prevent the sealing rings from shifting or loosening during operation, users usually use a fixing structure to fix the sealing rings.

[0003] A search of Chinese utility model patent (publication number CN219431945U) reveals an engine sealing ring fixing structure, including a sealing ring, a fastening assembly, a first limiting ring plate, a ring release tube, a sealing ring, a second outer connecting threaded groove, a second outer welded pipe, a first inner connecting threaded groove, and a spring. Through the force of the spring, the pressure plate can move inward, thereby allowing the four pressure plates to fasten the four sides of the sealing ring, effectively preventing the sealing ring from shifting and ensuring the sealing performance of the sealing ring.

[0004] However, practical application has revealed that this technical solution still has at least the following drawbacks:

[0005] The spring, under prolonged compression and the continuous vibration and temperature cycling of the engine, will gradually experience elastic fatigue, leading to a decrease in spring force. When the spring force is insufficient, the clamping force of the pressure plate on the sealing ring decreases, potentially causing the sealing ring to loosen and resulting in leakage risks. Furthermore, the spring force is determined by its compression, but in this structure, the spring compression depends entirely on the installation position of the reinforcing plate and cannot be adjusted independently. When the sealing ring undergoes dimensional changes due to wear and aging, the spring cannot adaptively adjust its clamping force. Utility Model Content

[0006] The present invention aims to provide an engine sealing ring fixing structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An engine sealing ring fixing structure includes a first pipe connected to a ring release pipe, a second pipe detachably connected to the ring release pipe, a sealing ring body sleeved on the outer side of the ring release pipe, a reinforcing ring connected to both the first and second pipes, the reinforcing ring having an annular groove, a threaded rod threadedly connected to the reinforcing ring, a handle connected to the threaded rod, a fastening plate rotatably connected to the threaded rod, the fastening plate being an arc-shaped plate, the fastening plate cooperating with the sealing ring body, and a limit rod connected to the fastening plate, the limit rod being slidably connected to the reinforcing ring.

[0009] Preferably, the second pipe is threadedly connected to the release ring pipe.

[0010] Preferably, the first pipe is connected to a first limiting ring plate, the second pipe is connected to a second limiting ring plate, both the first and second limiting ring plates abut against the reinforcing ring, and the reinforcing ring is slidably connected to the first and second pipes.

[0011] Preferably, the limiting ring plate has a limiting groove, the reinforcing ring is connected to a limiting block, and the limiting block is slidably connected to the limiting groove.

[0012] Preferably, the fastening plate is connected with a protrusion that engages with the sealing ring body.

[0013] Preferably, the limiting rod is provided with scale lines.

[0014] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0015] (1) This technical solution replaces the spring with the cooperation of the threaded rod, the limiting rod and the fastening plate to achieve compression, which effectively avoids the problem of elastic fatigue of the spring under long-term compression of the engine vibration and temperature cycle. It can stably maintain the compression force on the sealing ring body and reduce the risk of loosening and leakage of the sealing ring due to the decay of elastic force. At the same time, the threaded rod can flexibly adjust the position of the fastening plate by rotation, which makes it easy to adjust the compression force according to the size changes of the sealing ring body due to wear and aging. This enhances the adaptability to the changes in the state of the sealing ring and improves the reliability and durability of the fixing structure.

[0016] (2) By setting the pipe two to be threadedly connected to the release ring pipe, it is easy to quickly disassemble and assemble when the sealing ring body needs to be replaced. The operation is simple and does not require complicated tools, which improves the convenience of maintenance. In addition, the threaded connection can form a tight connection through the helical fit, and with the reinforcement ring and other structures, it can further enhance the sealing performance and stability of the overall connection.

[0017] (3) By setting precise limits on the sliding range of the reinforcing ring, it is prevented from slipping out of its effective range during operation, ensuring that the reinforcing ring is always in a position that can stably apply a tightening force to the sealing ring body. Limiting ring plate one and limiting ring plate two are used, and the reinforcing ring is slidably connected to pipe one and pipe two. At the same time, the sliding connection, combined with the counteracting action of the limiting ring plates, ensures that the reinforcing ring has sufficient flexibility during installation and disassembly.

[0018] (4) By setting a limiting groove and a limiting block, the reinforcing ring can be prevented from rotating unexpectedly due to external forces such as engine vibration. This ensures that the threaded rod drives the fastening plate to maintain a stable pressing position and force on the sealing ring body, avoiding the displacement of the fastening plate and imbalance of the pressing force due to the rotation of the reinforcing ring, thereby ensuring the sealing effect of the sealing ring and reducing the risk of leakage.

[0019] (5) By setting protrusions, the contact pressure between the fastening plate and the sealing ring body can be increased. Under the same clamping force, by reducing the contact area, the local pressure is increased, so that the sealing ring body fits more tightly against the outside of the release ring pipe, enhancing the sealing effect and effectively blocking fluid leakage.

[0020] (6) By setting scale lines, an intuitive quantitative reference can be provided for the adjustment of the fastening plate. Operators can accurately control the rotation range of the threaded rod by observing the scale lines, thereby accurately grasping the degree of compression of the fastening plate on the sealing ring body, avoiding damage to the sealing ring due to excessive adjustment, or insufficient compression force due to insufficient adjustment, and ensuring the consistency and accuracy of each adjustment. Attached Figure Description

[0021] Figure 1 This is a front sectional view of the present invention;

[0022] Figure 2 This is a side sectional view of the present invention;

[0023] Figure 3 for Figure 1 Enlarged view of point A;

[0024] Figure 4 for Figure 2 Enlarged view of point B;

[0025] Attached reference numerals: Pipe 1, Sealing ring body, Ring release pipe, Pipe 2, Limiting ring plate 1, Reinforcing ring, Fastening plate, Annular groove, Limiting ring plate 2, Threaded rod, Handle, Limiting rod, Limiting groove, Limiting block, Protrusion, Scale line. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0027] like Figure 1-4 The engine sealing ring fixing structure shown includes a pipe 1, one end of which is connected to a ring release tube 3. A second pipe 4 is threadedly connected to the outer wall of the ring release tube 3, and the outer wall of the second pipe 4 is aligned with the outer wall of the first pipe 1. A sealing ring body 2 is sleeved on the outer side of the ring release tube 3, located between the first pipe 1 and the second pipe 4. A reinforcing ring 6 is slidably connected to both the first pipe 1 and the second pipe 4. An annular groove 8 is formed on the inner side wall of the reinforcing ring 6. Several sets of threaded rods 10 are threadedly connected to the reinforcing ring 6, arranged in a circular array. A handle 11 is connected to one end of each threaded rod 10 located outside the reinforcing ring 6, and a fastening plate 7 is rotatably connected to the other end of each threaded rod 10 located inside the annular groove 8. The fastening plate 7 is an arc-shaped plate, and several sets of protrusions 15 are connected to its inner side wall. A limiting rod 12 is connected to the outer side wall of the fastening plate 7, and the limiting rod 12 is slidably connected to the reinforcing ring 6. Scale lines 16 are provided on the side wall of the limiting rod 12.

[0028] like Figure 1 , Figure 3 As shown, a limiting ring plate 5 is connected to the outer wall of pipe 1, and a limiting ring plate 9 is connected to the outer wall of pipe 4. When the fastening plate 7 is aligned with the sealing ring body 2, the limiting ring plate 5 and the limiting ring plate 9 respectively abut against both ends of the reinforcing ring 6. A limiting groove 13 is provided on one side of the limiting ring plate 5, and a limiting block 14 is connected to the end of the reinforcing ring 6 near the limiting ring plate 5. The limiting block 14 can be inserted into the limiting groove 13.

[0029] The sealing ring body 2 is sleeved on the outside of the release ring pipe 3 and is confined between pipe 1 and pipe 4. The threaded connection between pipe 4 and the release ring pipe 3 further limits the axial movement of the sealing ring, ensuring its initial sealing position is stable. The reinforcing ring 6 is sleeved on the outside of pipe 1 and pipe 4 via a sliding connection. Limiting ring plate 5 and limiting ring plate 9 respectively abut against both ends of the reinforcing ring 6, limiting its axial movement. The limiting groove 13 of the limiting ring plate 5 cooperates with the limiting block 14 of the reinforcing ring 6 to prevent the reinforcing ring 6 from rotating circumferentially. Rotating the handle 11 drives the threaded rod 10 to rotate, and the threaded rod 10 pushes the arc-shaped fastening plate 7 in the annular groove 8 closer to the sealing ring body 2. The protrusion 15 on the inner wall of the fastening plate 7 contacts the sealing ring, forming multi-point compression. The limiting rod 12 moves synchronously with the fastening plate 7, and its scale line 16 can quantify the degree of compression to avoid over- or under-compression.

[0030] The specific implementation process is as follows:

[0031] In use, place the sealing ring body 2 on the outside of the release ring pipe 3, ensuring one side is flush with the end of pipe 1. Insert the reinforcing ring 6 from the end of pipe 1, allowing the limiting block 14 to insert into the limiting groove 13 of the limiting ring plate 5 and abut against it. Rotate pipe 4 to connect it to the release ring pipe 3 via threads until the end of pipe 4 is inserted into the reinforcing ring 6 and flush with the other side of the sealing ring body 2. At this point, the limiting plate 2 and the reinforcing ring 6 are in contact. Turn the handle 11 to push the threaded rod 10 into the annular groove 8. The fastening plate 7 moves with the threaded rod 10 and gradually approaches the sealing ring body 2. Observe the scale line 16 of the limiting rod 12 to control the compression amplitude. Adjust multiple sets of threaded rods 10 sequentially.

[0032] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An engine sealing ring fixing structure, characterized in that: The system includes a first pipe (1), which is connected to a ring-release pipe (3). The ring-release pipe (3) is detachably connected to a second pipe (4). A sealing ring body (2) is fitted on the outside of the ring-release pipe (3). The first pipe (1) and the second pipe (4) are connected together to a reinforcing ring (6). The reinforcing ring (6) has an annular groove (8). The reinforcing ring (6) is threadedly connected to a threaded rod (10). The threaded rod (10) is connected to a handle (11). The threaded rod (10) is rotatably connected to a fastening plate (7). The fastening plate (7) is an arc-shaped plate. The fastening plate (7) cooperates with the sealing ring body (2). The fastening plate (7) is connected to a limit rod (12). The limit rod (12) is slidably connected to the reinforcing ring (6).

2. The engine sealing ring fixing structure as described in claim 1, characterized in that: The second pipe (4) is threadedly connected to the ring pipe (3).

3. The engine sealing ring fixing structure as described in claim 1, characterized in that: The first pipe (1) is connected to the first limiting ring plate (5), and the second pipe (4) is connected to the second limiting ring plate (9). The first limiting ring plate (5) and the second limiting ring plate (9) both abut against the reinforcing ring (6). The reinforcing ring (6) is slidably connected to the first pipe (1) and the second pipe (4).

4. The engine sealing ring fixing structure as described in claim 3, characterized in that: The limiting ring plate (5) has a limiting groove (13), the reinforcing ring (6) is connected to the limiting block (14), and the limiting block (14) is slidably connected to the limiting groove (13).

5. The engine sealing ring fixing structure as described in claim 4, characterized in that: The fastening plate (7) is connected to a protrusion (15), which engages with the sealing ring body (2).

6. The engine sealing ring fixing structure as described in claim 1, characterized in that: The limiting rod (12) is provided with scale lines (16).

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