A flexible support structure for an automotive bellows and a rubber bellows
By installing locking, support, and sealing components on the bellows, the problem of inconvenient installation of existing bellows is solved, achieving rapid installation, timely maintenance, and improved sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南京诗兰姆汽车零部件有限公司
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-21
AI Technical Summary
The existing flexible support structure for corrugated pipes uses a fixed connection for installation, making it difficult to check the condition of the pipe in a timely manner. It also lacks convenient external support components for installation and has poor sealing performance.
The design incorporates a locking assembly, a support assembly, and a sealing assembly. Quick installation and disassembly are achieved through the cooperation of locking blocks and spherical blocks. Springs and ball joints are used to connect the support assembly to cope with forces in different directions, and annular inserts and slots are used to improve the sealing effect.
It enables convenient installation and disassembly, improves support and sealing performance, and ensures timely maintenance of the pipe body and stability of the connection.
Smart Images

Figure CN224533709U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of corrugated pipe technology, and particularly relates to a flexible support structure for automotive corrugated pipes and a rubber corrugated pipe. Background Technology
[0002] The flexible support structure of automotive bellows is an assembly consisting of a tube made of metal or elastic polymer, paired with an external support frame or internal reinforcement layer. Its core function is to utilize the axial expansion, contraction, and torsion characteristics of the bellows to adapt to vibrations, thermal expansion and contraction, and assembly errors during vehicle operation, while maintaining overall stability through the support structure. This design is of great significance in the automotive industry: First, it effectively absorbs mechanical vibrations transmitted from the engine and chassis, reduces stress concentration, and prevents pipe cracking, thereby improving system durability. Second, in exhaust, fuel, or cooling systems, the flexible structure can dynamically compensate for displacement deviations, ensuring sealing, preventing media leakage, and guaranteeing safety and environmental protection. Furthermore, its flexible installation characteristics optimize space layout, simplify assembly processes, and contribute to vehicle weight reduction. Finally, by reducing failures caused by vibration fatigue, it significantly reduces maintenance costs. This technology is widely used in traditional fuel vehicle exhaust systems, new energy battery thermal management, and other fields, serving as a key support structure for improving vehicle reliability, safety, and comfort.
[0003] The existing installation methods for flexible support structures for corrugated pipes are mostly fixed connections, which makes it difficult to inspect and understand the condition of the corrugated pipe in a timely manner, and there is a lack of convenient external support components for installation.
[0004] Therefore, it is necessary to provide a new flexible support structure for automotive bellows and a rubber bellows to solve the above-mentioned technical problems. Utility Model Content
[0005] The technical problem solved by this utility model is to provide a flexible support structure and rubber corrugated pipe for automotive corrugated pipes, which facilitates understanding the usage status of the pipe body and timely maintenance by setting a locking component, facilitates the support component to cope with forces in different directions and improves the support effect by setting a support component, and improves the sealing effect by setting a sealing component.
[0006] To solve the above-mentioned technical problems, the flexible support structure for automotive bellows provided by this utility model includes: a bellows, on which two fixing rings are respectively sleeved, and the same metal braided mesh sleeve is fixedly installed on each of the two fixing rings. Multiple locking assemblies with identical structures are provided on each of the two fixing rings. Each locking assembly includes a fixing seat fixedly installed on one side of the fixing ring, and a locking block hingedly installed on the fixing seat. Two fixing blocks are fixedly installed on the bellows, and each of the two fixing blocks has two mounting holes (I). Two spherical blocks are slidably installed in each of the two mounting holes (I). Two spherical grooves are respectively opened on both sides of the locking block, and the two spherical grooves are adapted to the two spherical blocks. Two mounting holes (II) are respectively opened on the inner walls of the two mounting holes (I). Two spring telescopic rods (I) are fixedly installed on the inner walls of the two mounting holes (I), and the output ends of the two spring telescopic rods (I) are fixedly connected to the inner walls of the two mounting holes (II).
[0007] As a further embodiment of this utility model, two identical support components are provided at both ends of the corrugated pipe. Each support component includes a semi-annular block 1, a semi-annular block 2 hinged to the semi-annular block 1, and two connecting seats 1 fixedly installed on the semi-annular block 1 and the semi-annular block 2 respectively. Two ball joints 1 are provided in the two connecting seats 1 respectively. A fixing plate is provided on one side of the corrugated pipe, and two connecting seats 2 are fixedly installed on one side of the fixing plate respectively. Two ball joints 2 are provided in the connecting seats 2 respectively. The two ball joints 1 and the two ball joints 2 are connected by springs.
[0008] As a further embodiment of this utility model, the fixing plate has two through holes, and two bolts are respectively installed in the two through holes.
[0009] As a further embodiment of this utility model, an insert block is fixedly installed on the semi-annular block 2. Two mounting grooves are respectively opened on both sides of the insert block. Two limiting blocks are slidably installed in the two mounting grooves. Two mounting holes 3 are respectively opened on one side of the two limiting blocks. Two spring telescopic rods 2 are fixedly installed on the inner walls of the two mounting grooves. The output ends of the two spring telescopic rods 2 are respectively fixedly connected to the inner walls of the two mounting holes 3.
[0010] As a further embodiment of this utility model, a slot is provided on the semi-annular block 1, the slot is adapted to the insert block, and two through holes 2 are respectively provided on both sides of the slot, the two through holes 2 are adapted to two limiting blocks respectively, and two mounting holes 4 are respectively provided on both sides of the semi-annular block 1, two spring telescopic rods 3 are respectively fixedly installed on the inner wall of the two mounting holes 4, two mounting plates are respectively fixedly installed on the output end of the two spring telescopic rods 3, and two pressure blocks are respectively fixedly installed on the two mounting plates, the two pressure blocks are respectively adapted to the two through holes 2.
[0011] The rubber corrugated pipe provided by this utility model includes: a corrugated pipe and outer pipes disposed at both ends of the corrugated pipe. Two collars 1 are fixedly installed at both ends of the corrugated pipe, and two collars 2 are fixedly installed on the two outer pipes. Multiple threaded holes are opened on the two collars 1, and multiple through holes 3 are opened on the two collars 2, which are aligned with the multiple threaded holes. Multiple bolts 2 are disposed in the multiple through holes 3, and one end of the multiple bolts 2 is screwed into the multiple threaded holes. Two annular inserts are fixedly installed at both ends of the corrugated pipe, and two annular slots are opened at one end of the two outer pipes, which are adapted to the two annular inserts.
[0012] Compared with related technologies, the flexible support structure and rubber bellows of the automotive bellows provided by this utility model have the following beneficial effects:
[0013] 1. This utility model, by setting a locking component, facilitates the quick installation and disassembly of the metal protective sleeve, making it easier to understand the usage status of the sleeve and carry out timely maintenance;
[0014] 2. This utility model, by setting up a support component and using springs and ball joints for connection, facilitates the support component to cope with forces in different directions and improves the support effect;
[0015] 3. This utility model improves the sealing effect by setting a sealing component, which facilitates the connection between the corrugated pipe and the external pipe. Attached Figure Description
[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a three-dimensional structural diagram of the flexible support structure for the automotive bellows of this utility model;
[0018] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;
[0019] Figure 3 This is a schematic diagram of the support component structure of the flexible support structure for the automotive bellows of this utility model;
[0020] Figure 4 This is a schematic diagram of the support component snap-fit part of the flexible support structure for automotive bellows of this utility model.
[0021] Figure 5 This is a schematic diagram of the overall structure of the rubber corrugated pipe of this utility model;
[0022] Figure 6 This is a schematic diagram showing the disassembled structure of the rubber corrugated pipe of this utility model.
[0023] In the diagram: 1. Corrugated pipe; 2. Fixing ring; 3. Metal braided mesh sleeve; 4. Fixing seat; 5. Clamping block; 6. Fixing block; 7. Spherical block; 8. Spring telescopic rod one; 9. Semi-circular block one; 10. Semi-circular block two; 11. Connecting seat one; 12. Spherical joint one; 13. Fixing plate; 14. Connecting seat two; 15. Spherical joint two; 16. Spring; 17. Bolt one; 18. Insert block; 19. Limiting block; 20. Spring telescopic rod two; 21. Spring telescopic rod three; 22. Mounting plate; 23. Pressure block; 24. Outer pipe; 25. Collar one; 26. Collar two; 27. Bolt two. Detailed Implementation
[0024] Please refer to the following: Figures 1 to 4 ,in, Figure 1 This is a three-dimensional structural diagram of the flexible support structure for the automotive bellows of this utility model; Figure 2 for Figure 1 A magnified structural diagram of part A in the middle; Figure 3 This is a schematic diagram of the support component structure of the flexible support structure for the automotive bellows of this utility model; Figure 4 This is a schematic diagram of the support component snap-fit part of the flexible support structure for an automotive bellows according to this utility model. The flexible support structure for the automotive bellows includes: a bellows 1, on which two fixing rings 2 are respectively sleeved, and the same metal braided mesh sleeve 3 is fixedly installed on each of the two fixing rings 2. Multiple locking components with identical structures are provided on each of the two fixing rings 2. Each locking component includes a fixing seat 4 fixedly installed on one side of the fixing ring 2, and a locking block 5 hingedly installed on the fixing seat 4. Two fixing blocks 6 are fixedly installed on the bellows 1, and each of the two fixing blocks 6 has two mounting holes 1. Two spherical blocks 7 are slidably installed in each of the two mounting holes 1. Two spherical grooves are respectively provided on both sides of the locking block 5, and the two spherical grooves are respectively adapted to the two spherical blocks 7. Two mounting holes 2 are respectively provided on the inner walls of the two mounting holes 1. Two spring telescopic rods 1 8 are fixedly installed on the inner walls of the two mounting holes 1, and the output ends of the two spring telescopic rods 1 8 are respectively fixedly connected to the inner walls of the two mounting holes 2.
[0025] The cooperation between the locking block 5 and the two spherical blocks 7 facilitates the quick installation and removal of the metal protective sleeve, making it easier to understand the usage status of the pipe and carry out timely maintenance.
[0026] The bellows 1 has two identical support components at both ends. Each support component includes a semi-annular block 9 and a semi-annular block 10 hinged to the semi-annular block 9. Two connecting seats 11 are fixedly installed on the semi-annular block 9 and the semi-annular block 10, respectively. Two ball joints 12 are provided in the two connecting seats 11. A fixing plate 13 is provided on one side of the bellows 1. Two connecting seats 14 are fixedly installed on one side of the fixing plate 13. Two ball joints 15 are provided in the connecting seats 14. The two ball joints 12 and the two ball joints 15 are connected by a spring 16.
[0027] The fixing plate 13 has two through holes, and two bolts 17 are respectively installed in the two through holes;
[0028] A plug 18 is fixedly installed on the semi-annular block 10. Two mounting slots are opened on both sides of the plug 18. Two limiting blocks 19 are slidably installed in the two mounting slots. Two mounting holes 3 are opened on one side of the two limiting blocks 19. Two spring telescopic rods 20 are fixedly installed on the inner wall of the two mounting slots. The output ends of the two spring telescopic rods 20 are fixedly connected to the inner wall of the two mounting holes 3.
[0029] The semi-annular block 9 has a slot that is adapted to the insert block 18. Two through holes 2 are respectively provided on both sides of the slot and are adapted to two limiting blocks 19. Two mounting holes 4 are respectively provided on both sides of the semi-annular block 9. Two spring telescopic rods 3 21 are respectively fixedly installed on the inner wall of the two mounting holes 4. Two mounting plates 22 are respectively fixedly installed on the output end of the two spring telescopic rods 3 21. Two pressure blocks 23 are respectively fixedly installed on the two mounting plates 22 and are adapted to the two through holes 2.
[0030] By cooperating with the limiting block 19, the through hole 2, and the pressure block 23, and using springs and ball joints for connection, the support assembly can cope with forces in different directions and improve the support effect.
[0031] The working principle of the flexible support structure for automotive bellows provided by this utility model is as follows:
[0032] First step: When using, first slide the metal braided mesh sleeve 3 onto the corrugated pipe 1, and fold the multiple locking blocks 5 so that the multiple spherical blocks 7 are respectively locked into the spherical grooves on the multiple locking blocks 5 to prevent the metal braided mesh sleeve 3 from shifting and loosening. Then connect the corrugated pipe 1 to the external pipe. Then, according to the installation position, fix the two fixing plates 13 to the external surface with bolts 17, and tightly attach the two semi-annular blocks 9 to the corrugated pipe 1, and press and fasten the two semi-annular blocks 10 to complete the installation. When maintaining and removing, the semi-annular blocks 9 and 10 can be separated by pressing the mounting plate 22 and the pressure block 23.
[0033] Please refer to the following: Figures 5 to 6 ,in, Figure 5 This is a schematic diagram of the overall structure of the rubber corrugated pipe of this utility model; Figure 6 This is a schematic diagram showing the disassembled structure of the rubber corrugated pipe of this utility model. The rubber corrugated pipe includes:
[0034] The bellows 1 and the outer pipes 24 disposed at both ends of the bellows 1 are provided. Two collars 1 25 are fixedly installed at both ends of the bellows 1. Two collars 26 are fixedly installed on the two outer pipes 24. Multiple threaded holes are opened on the two collars 1 25. Multiple through holes 3 are opened on the two collars 26, which are aligned with the multiple threaded holes. Multiple bolts 27 are provided in the multiple through holes 3. One end of the multiple bolts 27 is screwed into the multiple threaded holes. Two annular inserts are fixedly installed at both ends of the bellows 1. Two annular slots are opened at one end of the two outer pipes 24. The two annular slots are adapted to the two annular inserts.
[0035] The interlocking of the annular insert and the annular slot facilitates the connection between the corrugated pipe and the external pipeline, improving the sealing effect.
[0036] The working principle of the rubber corrugated pipe provided by this utility model is as follows:
[0037] First step: When using, insert the annular insert and the annular slot in opposite directions, and tighten with bolts to improve the sealing effect of the connection.
[0038] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0039] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.
Claims
1. A flexible support structure for automotive bellows, characterized in that, include: A corrugated pipe is provided, with two fixing rings fitted on each of the two fixing rings. A metal woven mesh sleeve is fixedly installed on each of the two fixing rings. Multiple locking assemblies with identical structures are provided on each of the two fixing rings. Each locking assembly includes a fixing seat fixedly installed on one side of the fixing ring, and a locking block hinged to the fixing seat. Two fixing blocks are fixedly installed on the corrugated pipe, each with two mounting holes (I). Two spherical blocks are slidably installed in each of the two mounting holes (I). Two spherical grooves are provided on both sides of each locking block, and these grooves are adapted to the two spherical blocks. Two mounting holes (II) are provided on the inner walls of each of the two mounting holes (I). The output ends of the two spring telescopic rods (I) are fixedly connected to the inner walls of the two mounting holes (II).
2. The flexible support structure for automotive bellows according to claim 1, characterized in that: The corrugated pipe has two identical support components at both ends. Each support component includes a semi-annular block 1, a semi-annular block 2 hinged to the semi-annular block 1, and two connecting seats 1 fixedly installed on the semi-annular block 1 and the semi-annular block 2 respectively. Each of the two connecting seats 1 has two ball joints 1. The corrugated pipe has a fixing plate on one side, and two connecting seats 2 fixedly installed on one side of the fixing plate. Each connecting seat 2 has two ball joints 2. The two ball joints 1 and the two ball joints 2 are connected by springs.
3. The flexible support structure for automotive bellows according to claim 2, characterized in that: The fixing plate has two through holes, and two bolts are installed in each of the two through holes.
4. The flexible support structure for automotive bellows according to claim 2, characterized in that: An insert block is fixedly installed on the semi-annular block 2. Two mounting grooves are opened on both sides of the insert block. Two limiting blocks are slidably installed in the two mounting grooves. Two mounting holes 3 are opened on one side of the two limiting blocks. Two spring telescopic rods 2 are fixedly installed on the inner wall of the two mounting grooves. The output ends of the two spring telescopic rods 2 are fixedly connected to the inner wall of the two mounting holes 3 respectively.
5. The flexible support structure for automotive bellows according to claim 2, characterized in that: The semi-annular block 1 has a slot that is adapted to the insert block. Two through holes 2 are respectively provided on both sides of the slot. The two through holes 2 are adapted to two limiting blocks respectively. Two mounting holes 4 are respectively provided on both sides of the semi-annular block 1. Two spring telescopic rods 3 are respectively fixedly installed on the inner wall of the two mounting holes 4. Two mounting plates are respectively fixedly installed on the output end of the two spring telescopic rods 3. Two pressure blocks are respectively fixedly installed on the two mounting plates. The two pressure blocks are adapted to the two through holes 2 respectively.
6. A rubber corrugated pipe, characterized in that, include: The flexible support structure of the automotive bellows as described in claim 1 uses a bellows and external pipes disposed at both ends of the bellows. Two collars 1 are fixedly installed at both ends of the bellows, and two collars 2 are fixedly installed on the two external pipes. Multiple threaded holes are opened on the two collars 1, and multiple through holes 3 are opened on the two collars 2, which are aligned with the multiple threaded holes. Multiple bolts 2 are disposed in the multiple through holes 3, and one end of the multiple bolts 2 is screwed into the multiple threaded holes. Two annular inserts are fixedly installed at both ends of the bellows, and two annular slots are opened at one end of the two external pipes, which are adapted to the two annular inserts.