Multifunctional corrugated pipe fitting combination device

By introducing an elastic butt joint structure and a rigidity-enhancing structure at the bellows connection, the problems of reduced sealing performance and insufficient rigidity caused by vibration are solved, achieving a stable connection and versatility.

CN224120798UActive Publication Date: 2026-04-14安徽瑞瑶新型建材有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing bellows connection devices are prone to loosening of the interface and reduced sealing due to vibration when fluid flows at high speed. In addition, they have limited functionality and can be easily replaced by simpler structures.

Method used

The system employs an elastic docking structure and a rigidity-enhancing structure. The connection stability and rigidity are enhanced by buffer springs and rigid guide rods. Sealing and rigidity enhancement are achieved through the cooperation of sealing rings and fixing blocks with limiting rings.

Benefits of technology

It effectively reduces vibration damage to the sealing ring, lowers the risk of loose connections, enhances the rigidity of the bellows, and expands the functional range of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of corrugated pipes, and discloses a multifunctional corrugated pipe fitting combination device which comprises two corrugated pipes which are symmetrically distributed, and elastic butt joint structures and rigidity increasing structures are arranged outside the two corrugated pipes. The first fixing ring and the second fixing ring are installed on the opposite faces of the two corrugated pipes, the buffer springs are installed on the inner walls of the first fixing ring and the second fixing ring, and through the design of the elastic butt joint structure, the elastic blocks are inserted into the inner walls of the sliding grooves, the second fixing ring is rotated, and the elastic blocks are driven to slide in the sliding grooves; then, the first fixing ring and the second fixing ring are tightly locked through a bolt, in the operation process, the two sealing rubber rings are tightly attached, when the corrugated pipe vibrates, acting force borne by the sealing rubber rings can be transmitted to the buffer springs, and the buffer springs can buffer the corrugated pipe by means of the buffering characteristic of the buffer springs. And the damage of the impact vibration to the sealing rubber ring is effectively weakened.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, and in particular to a multifunctional corrugated pipe accessory assembly device. Background Technology

[0002] Corrugated pipe fitting assembly is a widely used pipe connection solution. The assembly consists of a corrugated pipe body, end connectors, etc. Modern corrugated pipes use advanced materials and manufacturing processes, such as stainless steel, titanium alloys and hydroforming technology, to ensure high precision and reliability.

[0003] In the process of realizing this invention, the inventors discovered that the prior art has at least the following problems: when two bellows are connected, whether for liquid or gas transmission, vibration will inevitably occur at the interface due to the high-speed flow of the fluid. This vibration will not only have a negative impact on the tightness of the connection, but also cause a certain degree of damage to the sealing ring, thereby affecting the sealing performance and stability of the entire connection structure. Furthermore, the main function of some current connection devices is limited to connecting two bellows and maintaining the basic stability of the connection. However, given the simplicity of its function, in many application scenarios, this device can be easily replaced by simpler structures such as connecting flanges.

[0004] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the basic technical solution proposed by this utility model is: a multifunctional corrugated pipe fitting assembly device, including two corrugated pipes that are symmetrically distributed, and the two corrugated pipes are provided with an elastic docking structure and a rigidity increasing structure on their exteriors;

[0006] The elastic docking structure includes a first fixing ring and a second fixing ring installed on opposite sides of the two bellows, a buffer spring installed on the inner wall of the first fixing ring and the second fixing ring, and a sealing ring fixedly connected to one end of the buffer spring.

[0007] Preferably, a sliding groove is provided on the side of the first fixing ring that contacts the second fixing ring, and an elastic block slides on the inner wall of the sliding groove.

[0008] Preferably, the rigidity-enhancing structure includes a limiting ring threaded to the side of the two bellows that is away from each other, and a fixing block installed on the outer wall of the first fixing ring and the second fixing ring, wherein a rigid guide rod is provided between the limiting ring and the fixing block.

[0009] Preferably, threaded grooves are provided at both ends of the rigid guide rod, and nuts are threadedly connected to the inner walls of the threaded grooves.

[0010] Preferably, the rigid guide rod is locked to the middle of the first fixed ring and the limiting ring and the middle of the second fixed ring and the limiting ring by a nut.

[0011] Preferably, the first fixing ring and the second fixing ring are locked together by bolts.

[0012] The beneficial effects of this utility model are:

[0013] By designing an elastic docking structure, an elastic block is inserted into the inner wall of the sliding groove. Rotating the second fixed ring drives the elastic block to slide within the sliding groove until it reaches its limit position and can no longer move. Subsequently, bolts are used to tightly lock the first and second fixed rings together. During this operation, the two sealing rings are tightly fitted. When the bellows vibrates, the force borne by the sealing rings is transmitted to the buffer spring. The buffer spring, with its own buffering characteristics, effectively weakens the damage of this impact vibration to the sealing rings, and at the same time significantly reduces the risk of loosening at the connection between the two bellows due to vibration.

[0014] Meanwhile, considering that large-diameter bellows have relatively low stiffness and are more susceptible to deformation due to various forces when transporting fluids, a rigidity-enhancing structure is introduced. Specifically, a limiting ring is installed and works in conjunction with a fixed block. A rigid guide rod is inserted into the middle of the limiting ring and the fixed block, and then a nut is used for locking. This greatly enhances the rigidity of the bellows and effectively expands the functional scope of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first fixing ring of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second fixing ring of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall cross-sectional structure.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Bellows; 2. Flexible mating structure; 21. First fixing ring; 22. Second fixing ring; 23. Buffer spring; 24. Sealing ring; 25. Sliding groove; 26. Elastic block; 3. Rigidity-increasing structure; 31. Restricting ring; 32. Fixing block; 33. Rigid guide rod; 34. Nut. Detailed Implementation

[0021] The following will be combined with the appendix Figure 1 To be continued Figure 4The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that, in the embodiments of this utility model, the directions shown in the accompanying drawings shall prevail, such as front and back. Figure 1 For the sake of accuracy, the specific details should be as follows: Figure 1 The left side is the front. Figure 1 The right side is the rear; at the same time, as Figure 2 As shown, the horizontal direction is roughly defined as left and right, and the vertical direction is defined as up and down. If a specific orientation changes, the directional indication will also change accordingly.

[0023] Example 1

[0024] Please see Figure 1 - Figure 4 As shown, this embodiment provides a multifunctional corrugated pipe fitting assembly device, including two corrugated pipes 1 that are symmetrically distributed. Both corrugated pipes 1 are provided with an elastic docking structure 2 and a rigidity-increasing structure 3 on their exterior.

[0025] The elastic docking structure 2 includes a first fixing ring 21 and a second fixing ring 22 installed on opposite sides of the two bellows 1, a buffer spring 23 installed on the inner wall of the first fixing ring 21 and the second fixing ring 22, and a sealing ring 24 fixedly connected to one end of the buffer spring 23.

[0026] Considering the limited functionality of existing devices and the inevitable vibrations caused by the high-speed flow of objects within the pipes, which can easily lead to loosening at the joint between the two bellows, the elastic joint structure 2 is designed such that an elastic block 26 is inserted into the inner wall of the sliding groove 25. Rotating the second fixing ring 22 drives the elastic block 26 to slide within the sliding groove 25 until it reaches its limit and can no longer move. Then, bolts are used to tightly lock the first fixing ring 21 and the second fixing ring 22 together. During this operation, the two sealing rings 24 achieve a tight fit. When the bellows 1 vibrates, the force borne by the sealing rings 24 is transmitted to the buffer spring 23, mitigating the impact. The impact spring 23, with its own buffering characteristics, effectively weakens the damage of the impact vibration to the sealing ring 24, and significantly reduces the risk of loosening at the connection between the two bellows 1 caused by vibration. At the same time, for large-diameter bellows 1, its own stiffness is relatively low, and it is more susceptible to deformation due to various forces when transporting fluid. Therefore, a rigidity-enhancing structure 3 is introduced. Specifically, a limiting ring 31 is installed and works in conjunction with a fixing block 32. A rigid guide rod 33 is inserted into the middle of the limiting ring 31 and the fixing block 32, and then a nut 34 is used for locking. This greatly enhances the rigidity of the bellows 1 and effectively expands the functional scope of the device.

[0027] Example 2

[0028] like Figure 2 - Figure 4 As shown, a sliding groove 25 is provided on the side of the first fixing ring 21 that contacts the second fixing ring 22, and an elastic block 26 slides on the inner wall of the sliding groove 25. The elastic block 26 adopts a highly elastic structure and will not be easily broken. The elastic block 26 is fixedly connected to the second fixing ring 22. The rigidity increasing structure 3 includes a limiting ring 31 threadedly connected to the side of the two bellows 1 that is away from each other, and a fixing block 32 installed on the outer wall of the first fixing ring 21 and the second fixing ring 22. A rigid guide rod 33 is provided between the limiting ring 31 and the fixing block 32. Both ends of the bellows 1 are provided with threaded grooves, and nuts 34 are threaded onto the inner walls of the threaded grooves. The rigid guide rod 33 is locked to the middle of the first fixed ring 21 and the limiting ring 31 and the middle of the second fixed ring 22 and the limiting ring 31 by the nuts 34. The first fixed ring 21 and the second fixed ring 22 are connected by bolts. The rigid guide rod 33 is locked to the middle of the first fixed ring 21 and the limiting ring 31 and the middle of the second fixed ring 22 and the limiting ring 31, respectively. This not only enhances the rigidity of the bellows 1, but also further stabilizes the connection between the two fixed rings and the bellows 1. This multi-part fastening connection method allows the entire connection device to remain stable under complex working conditions.

[0029] The flexible docking structure 2 and the rigidity-increasing structure 3 work together. The former ensures the sealing and buffering performance of the connection, while the latter solves the problem of insufficient rigidity of the bellows 1 in long-distance transmission. The two work together to enable the device to adapt to the vibration of the bellows 1 and meet the challenges of long-distance transmission, making the device more comprehensive and greatly expanding its application range.

[0030] Work steps:

[0031] Installation of flexible docking structure 2:

[0032] First, for each bellows 1, the first fixing ring 21 is installed at one end, and the second fixing ring 22 is installed at the corresponding end of the other bellows 1 that it is connected to. At this time, the first fixing ring 21 and the second fixing ring 22 are set opposite to each other. The sliding groove 25 on the contact surface of the first fixing ring 21 corresponds to the position of the elastic block 26 on the second fixing ring 22. The elastic block 26 is inserted into the inner wall of the sliding groove 25. By rotating the second fixing ring 22, the elastic block 26 is driven to slide in the sliding groove 25 until the elastic block 26 reaches the limit position of the sliding groove 25 and can no longer move. The first fixing ring 21 and the second fixing ring 22 are tightly locked with bolts. During this process, the sealing rings 24 located on the inner walls of the two fixing rings are tightly fitted due to the proximity of the fixing rings, and the initial installation of the elastic docking structure 2 is completed.

[0033] Installation of rigid reinforcement structure 3:

[0034] First, at the ends of the two bellows 1 that are far apart from each other, the limiting rings 31 are threaded to the outer walls of the bellows 1 respectively, and the rigid guide rod 33 is passed through the middle of the limiting ring 31 and the fixing block 32. The threaded grooves at both ends of the rigid guide rod 33 are aligned with the corresponding positions of the limiting ring 31 and the fixing block 32. Finally, the nuts 34 are tightened at both ends of the rigid guide rod 33 to firmly lock the rigid guide rod 33 in the middle of the first fixing ring 21 and the limiting ring 31, and the middle of the second fixing ring 22 and the limiting ring 31. This completes the installation of the rigidity-enhancing structure 3, realizes the overall assembly of the device, and gives it good sealing, buffering and rigidity performance.

[0035] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A multifunctional corrugated pipe fitting assembly, comprising two corrugated pipes (1) arranged symmetrically, characterized in that: Both of the bellows (1) are provided with an elastic docking structure (2) and a rigidity-increasing structure (3) on their exteriors; The elastic docking structure (2) includes a first fixing ring (21) and a second fixing ring (22) installed on opposite sides of the two bellows (1), a buffer spring (23) installed on the inner wall of the first fixing ring (21) and the second fixing ring (22), and a sealing ring (24) fixedly connected to one end of the buffer spring (23).

2. The multifunctional corrugated pipe fitting assembly device according to claim 1, characterized in that: The side of the first fixing ring (21) that contacts the second fixing ring (22) has a sliding groove (25), and an elastic block (26) slides on the inner wall of the sliding groove (25).

3. The multifunctional corrugated pipe fitting assembly device according to claim 2, characterized in that: The rigidity-enhancing structure (3) includes a limiting ring (31) threaded to the side of the two bellows (1) away from each other and a fixing block (32) installed on the outer wall of the first fixing ring (21) and the second fixing ring (22). A rigid guide rod (33) is provided between the limiting ring (31) and the fixing block (32).

4. The multifunctional corrugated pipe fitting assembly device according to claim 3, characterized in that: Both ends of the rigid guide rod (33) are provided with threaded grooves, and the inner wall of the threaded groove is threaded with a nut (34).

5. A multifunctional corrugated pipe fitting assembly device according to claim 4, characterized in that; The rigid guide rod (33) is locked by a nut (34) at the middle of the first fixed ring (21) and the limiting ring (31) and at the middle of the second fixed ring (22) and the limiting ring (31).

6. The multifunctional corrugated pipe fitting assembly device according to claim 1, characterized in that: The first fixing ring (21) and the second fixing ring (22) are connected by bolts.