Damping flange

By incorporating a vibration damping mechanism consisting of stainless steel bellows and wire damping units between flanges, combined with disc spring assemblies and annular gaskets, the problems of vibration transmission in traditional flanges and the complex installation of external dampers are solved, achieving effective absorption of vibration energy and a compact damping effect.

CN224107858UActive Publication Date: 2026-04-10WENZHOU SHENGKAI FLANGE PIPE FITTINGS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The rigid connection of traditional flanges leads to the direct transmission of vibration, and existing external dampers are complex to install and occupy a lot of space, which limits their application range.

Method used

Design a vibration damping flange that uses a vibration damping mechanism composed of stainless steel bellows and steel wire damping units, combined with disc spring assembly and annular gasket, to absorb vibration energy through flexible and elastic deformation, avoiding reliance on external dampers.

Benefits of technology

It effectively absorbs and buffers equipment vibration, reduces vibration transmission, has a compact structure, simplifies installation, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a damping flange which comprises two flange plates and a damping mechanism, the damping mechanism comprises a stainless steel corrugated pipe, flange panels are arranged at the two ends of the stainless steel corrugated pipe, and a plurality of steel wire damping units are assembled on the edge between the two flange panels through mounting lugs. The steel wire damping units are erected in the vertical direction, and each steel wire damping unit is composed of a steel wire rope with the middle bent towards the outer side and two lock catches which are assembled at the two ends of the steel wire rope respectively and used for being connected with the mounting lugs in a locked mode. According to the damping flange, the damping mechanism is arranged between the two symmetrically-distributed flange plates, the flexibility of the stainless steel corrugated pipe and the elastic deformation capacity of the steel wire damping unit are utilized, energy generated by equipment vibration can be effectively absorbed and buffered, transmission of vibration to downstream equipment is reduced, and meanwhile the damping flange is compact in structure and convenient to use. And the problems of large occupied space, complex installation and the like caused by dependence on an external damper are avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to flange disc technical field especially a shock attenuation flange. BACKGROUND

[0002] In the connection of industrial pipeline system and various equipment, the traditional flange disc as the commonly used connecting component plays a vital role, it is closely connected together through bolt two flange discs, realizes reliable intercommunication between pipeline or equipment, ensures that medium can be normally transported, however, in the actual operation process of industrial production, equipment often is influenced by various factors and produces vibration, since the traditional flange disc adopts rigid connection mode, this vibration will pass through bolt and pipeline directly to downstream equipment without any obstruction.

[0003] In the implementation of the present application, the inventor found that the prior art at least has the following problems:

[0004] At present, the vibration transmission problem is mostly dependent on external damper to realize the shock attenuation effect, but the external damper in the installation and use process, on the one hand, the external damper is relatively large, can occupy more installation space, in some space-limited pipeline system or equipment layout, it is difficult to find a suitable installation position, this greatly limits its application range, on the other hand, the installation process of external damper is relatively complex, needs professional technical personnel and specific installation tool, increases the installation cost and time.

[0005] Therefore, the above technical problems need to be solved. CONTENT OF THE UTILITY MODEL

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a shock attenuation flange, solve the problem raised in the background art.

[0007] In order to solve the above technical problems, the basic technical scheme provided by the utility model is:

[0008] A shock attenuation flange, including two flange discs that are symmetrically distributed up and down and the shock attenuation mechanism of flange assembly between two,

[0009] The shock attenuation mechanism includes stainless steel bellows, both ends of the stainless steel bellows are provided with flange faceplate that is adapted to the butt joint of flange disc, the edge between two flange faceplates is assembled with a plurality of steel wire shock attenuation units through mounting ear, a plurality of steel wire shock attenuation units are all erected along the vertical direction and are annular array distribution about the axis of stainless steel bellows,

[0010] The steel wire shock attenuation unit is composed of steel wire rope that is curved from the middle to the outside and two lockers that are assembled on both ends of the steel wire rope for locking connection with the mounting ear.

[0011] Preferably, the lock buckle comprises two fixed blocks in parallel distribution and each allowing the end of the steel wire rope to pass through, and a connecting plate welded between the outer sides of the two fixed blocks, a gap between the two fixed blocks allowing the mounting ear to be inserted, and two screws screwed through the connecting plate and capable of extending into the two fixed blocks for locking and positioning the steel wire rope.

[0012] Preferably, the device further comprises a disc spring assembly arranged between the bolt, the nut and the flange plate, the disc spring assembly comprising two disc springs arranged in an upper-lower symmetrical manner.

[0013] Preferably, the device further comprises an annular gasket coaxially arranged between the flange plate and the flange panel, and the inner side of the flange plate is provided with a stepped groove allowing the annular gasket to sink and be accommodated.

[0014] Preferably, the outer side of each of the two flange panels is coaxially provided with a protrusion, and the protrusion is provided with a concentric circular pattern.

[0015] The device has the following advantages:

[0016] The device has the following advantages: BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 is a structural schematic diagram of the device;

[0018] Figure 2 Fig. 2 is a structural schematic diagram of the damping mechanism of the device;

[0019] Figure 3 Fig. 3 is an installation structural schematic diagram of the disc spring assembly of the device;

[0020] Figure 4A structure schematic view of the disc spring assembly of the utility model;

[0021] Figure 5 A structure schematic view of the mounting structure of the annular gasket of the utility model;

[0022] Figure 6 A structure schematic view of the steel wire damping unit of the utility model;

[0023] Mark explanation:

[0024] 100, flange plate;

[0025] 110, stepped groove;

[0026] 200, damping mechanism;

[0027] 210, stainless steel bellows; 220, flange panel; 230, mounting lug; 240, steel wire damping unit; 250, protrusion; 260, concentric circle line;

[0028] 2410, steel wire rope; 2420, lock catch;

[0029] 2421, fixed block; 2422, connecting piece; 2423, screw;

[0030] 300, disc spring assembly;

[0031] 310, disc spring;

[0032] 400, annular gasket. Specific embodiments

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] Please refer to Figures 1-6The utility model provides a technical scheme: a shock attenuation flange, including two flange plates 100 who is upper, lower symmetry distribution and the shock attenuation mechanism 200 of flange assembly between both, shock attenuation mechanism 200 includes stainless steel bellows 210, both ends of stainless steel bellows 210 are equipped with the flange panel 220 with flange plate 100 butt joint adaptation, the edge between two flange panels 220 is equipped with a plurality of steel wire shock attenuation units 240 through mounting ear 230, a plurality of steel wire shock attenuation units 240 are all erected along vertical direction and about stainless steel bellows 210 axis annular array distribution, steel wire shock attenuation unit 240 is composed by the steel wire rope 2410 of the outside bending of middle part and two respectively assembled in steel wire rope 2410 both ends for its and mounting ear 230 locking connection's lock catch 2420.

[0035] Based on the structure of the above setting, the damping flange is composed of the damping mechanism 200 and two flange plates 100, wherein the two flange plates 100 are symmetrically distributed above and below, serving as the main connecting components of the damping flange, and the two flange plates 100 are tightly connected together through bolts to realize reliable communication between the pipelines or equipment and ensure that the medium can be normally conveyed. In the damping mechanism 200, the stainless steel bellows 210 is one of the core components of the damping mechanism 200, which has good flexibility and elasticity. It can deform when the equipment vibrates to absorb part of the vibration energy and play a preliminary damping role. At the same time, the stainless steel material ensures that it has good corrosion resistance and strength, which can adapt to the complex working environment of industrial pipeline systems. The two flange panels 220 are respectively arranged at both ends of the stainless steel bellows 210 and are adapted to the flange plate 100, which is used to connect the damping mechanism 200 and the flange plate 100 to realize force transmission and damping effect application. The mounting ear 230 provides a mounting position for the steel wire damping unit 240, so that the steel wire damping unit 240 can be stably connected to the two flange panels 220. Multiple steel wire damping units 240 can buffer and absorb vibration in multiple directions to further enhance the damping effect. The steel wire rope 2410 will produce elastic deformation when subjected to vibration, converting vibration energy into elastic potential energy to reduce the transmission of vibration to downstream equipment. Specifically, the damping flange sets the damping mechanism 200 between the two symmetrically distributed flange plates 100, uses the flexibility of the stainless steel bellows 210 and the elastic deformation capability of the steel wire damping unit 240 to absorb and buffer the energy generated by equipment vibration. When the equipment vibrates, the stainless steel bellows 210 will deform to a certain extent, and at the same time, the steel wire rope 2410 in the steel wire damping unit 240 will also deform within the elastic range, thereby converting vibration energy into elastic potential energy to reduce the transmission of vibration to downstream equipment. The damping flange sets the damping mechanism 200 between the two symmetrically distributed flange plates 100, uses the flexibility of the stainless steel bellows 210 and the elastic deformation capability of the steel wire damping unit 240 to effectively absorb and buffer the energy generated by equipment vibration, and reduce the transmission of vibration to downstream equipment. At the same time, the structure is compact, avoiding the problems of large space occupation and complex installation caused by relying on external dampers.

[0036] Further, the lock 2420 includes two fixed blocks 2421 that are parallelly distributed above and below and can be penetrated by the end of the steel wire rope 2410, and a connecting piece 2422 welded between the outer sides of the two fixed blocks 2421. The two fixed blocks 2421 have a gap reserved for the insertion of the mounting ear 230, and the connecting piece 2422 has two screws 2423 that can extend into the two fixed blocks 2421 for locking and positioning the steel wire rope 2410.

[0037] Further, a disc spring assembly 300 is arranged between the bolt nut and the flange plate 100, and the disc spring assembly 300 is composed of two disc springs 310 arranged in an upper-lower symmetrical manner.

[0038] Further, a ring gasket 400 is arranged coaxially between the flange plate 100 and the flange panel 220, and the inner side of the flange plate 100 is provided with a stepped groove 110 for sinking and accommodating the ring gasket 400.

[0039] Further, the outer side of the two flange panels 220 is provided with a protrusion 250 arranged coaxially, and the protrusion 250 is provided with a concentric circular line 260.

[0040] According to the disclosure and teaching of the above description, the skilled in the art of the utility model can also change and modify the above-mentioned embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the utility model.

Claims

1. A shock-absorbing flange, comprising two flanges (100) symmetrically arranged in upper and lower positions and a shock-absorbing mechanism (200) arranged between the two flanges; the shock-absorbing mechanism (200) comprises a stainless steel bellows (210), both ends of the stainless steel bellows (210) are provided with flange panels (220) adapted to the flanges (100), and edges between the two flange panels (220) are provided with a plurality of steel wire shock-absorbing units (240) through mounting ears (230); the plurality of steel wire shock-absorbing units (240) are arranged in a vertical direction and in a ring-shaped array about an axis of the stainless steel bellows (210). characterized in that The steel wire shock-absorbing unit (240) is composed of a steel wire rope (2410) curved from a middle portion to an outer side and two lock buckles (2420) respectively arranged at both ends of the steel wire rope (2410) for locking connection with the mounting ear (230). The lock buckle (2420) comprises two fixed blocks (2421) symmetrically arranged in upper and lower positions and parallel to each other and capable of penetrating the end portion of the steel wire rope (2410) and a connecting plate (2422) welded between outer sides of the two fixed blocks (2421), a gap is reserved between the two fixed blocks (2421) for inserting the mounting ear (230), and the connecting plate (2422) is threadedly penetrated by two screws (2423) capable of being respectively extended into the two fixed blocks (2421) for locking and positioning the steel wire rope (2410).

2. A shock absorbing flange according to claim 1, characterized in that: The shock-absorbing flange further comprises a disc spring assembly (300) arranged between a bolt and a nut and the flange (100), the disc spring assembly (300) is composed of two disc springs (310) symmetrically stacked in upper and lower positions.

3. A shock absorbing flange according to claim 1, characterized in that: The shock-absorbing flange further comprises an annular gasket (400) coaxially arranged between the flange (100) and the flange panel (220), and an edge of an inner side surface of the flange (100) is provided with a stepped groove (110) capable of sinking and accommodating the annular gasket (400).

4. A shock absorbing flange according to claim 1, characterized in that: The outer side surfaces of the two flange panels (220) are coaxially provided with protrusions (250), and the protrusions (250) are provided with concentric circular grooves (260).

5. A shock absorbing flange according to claim 1, characterized in that: ​