Adjusting type ripple compensator
By designing vibration damping and buffer components and connection protection components, the problem that corrugated compensators cannot cope with pipeline vibration and impact is solved, realizing the stability of the corrugated pipe and the protection of the connection, reducing the risk of pipeline damage and corrosion.
Patent Information
- Application Number
- CN202520573260.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-29
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-29
AI Technical Summary
Existing adjustable bellows compensators cannot effectively cope with vibrations and impacts inside pipelines, and cannot regulate the up-and-down swaying of the bellows, resulting in increased impact on the pipeline and failure to maintain system stability.
The system employs vibration damping and buffering components and connection protection components, including connecting plates, bolts, nuts, springs, telescopic rods, and other components. The elasticity of the springs and telescopic rods adjusts the vibration and impact of the bellows, while the protective plates protect the connection points from corrosion and damage.
It effectively reduces vibration and impact inside the pipeline, maintains system stability, extends the service life of the compensator, and prevents dust and dirt from corroding the connection, especially providing protection in harsh environments.
Smart Images

Figure CN223938986U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of compensator technology, and more specifically, to an adjustable corrugated compensator. Background Technology
[0002] Adjustable bellows compensators (also known as adjustable metal bellows expansion joints) are devices used in piping systems, primarily to compensate for axial, lateral, or angular displacements caused by temperature changes, pressure changes, or other factors. They have an adjustable function, allowing the compensation amount to be adjusted according to actual needs to achieve the best compensation effect.
[0003] According to the published information on the adjustable corrugated compensator (publication number: CN 221374917 U), it includes a corrugated pipe body for compensating for expansion and contraction. The two ends of the corrugated pipe body are symmetrically provided with end pipes with flanged end faces. The outer side of the corrugated pipe body is symmetrically provided with auxiliary components that can help it to deform within the effective expansion and contraction range. The upper part of the auxiliary components is also provided with elastic elements that can absorb energy and filter vibration.
[0004] In the aforementioned application, the cooperation between components such as end pipes and auxiliary components makes it difficult to effectively cope with the vibration and impact inside the pipeline and to adjust the up-and-down swaying of the bellows, which increases the impact on the pipeline and fails to maintain the stability of the system, and needs to be improved. Utility Model Content
[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide an adjustable bellows compensator, which solves the technical problems in related technologies / prior technologies where bellows compensators cannot effectively cope with vibrations and impacts inside pipelines and cannot adjust the up-and-down swaying of bellows.
[0006] According to one aspect, at least one embodiment of this disclosure provides an adjustable bellows compensator, including a bellows, a connecting flange plate fixedly connected to the side of the bellows, a vibration damping and adjusting buffer assembly disposed on the circumferential surface of the bellows, the vibration damping and adjusting buffer assembly including a connecting plate, the bottom of the connecting plate being fixedly connected to the circumferential surface of the connecting flange plate, a bolt penetrating through the side of the connecting plate, a nut threaded onto the circumferential surface of the bolt, a connecting rod fixedly connected to the circumferential surface of the bellows, and a square plate fixedly connected to the side of the connecting rod. A hinge rod is fixedly connected to the bottom of the block plate, and a telescopic rod is fixedly connected to the bottom of the hinge rod. A spring is fixedly connected to the bottom of the hinge rod, and the end of the spring away from the hinge rod is fixedly connected to the outer wall of the telescopic rod. A short rod is fixedly connected to the circumferential surface of the telescopic end of the telescopic rod, and a rectangular frame is fixedly connected to the end of the short rod away from the telescopic rod. A second spring is fixedly connected to the inner wall of the rectangular frame, and a slider is fixedly connected to the end of the second spring away from the rectangular frame. A long rod is fixedly connected to the side of the connecting rod, and a blocking block is fixedly connected to the side of the long rod.
[0007] For example, in at least one embodiment of the present disclosure, an adjustable corrugated compensator is provided, which further includes: the blocking block is located on the displacement trajectory of the slider, and a plurality of the blocking blocks are provided and arranged in a linear array on the side of the long rod. The slider is designed so that when the telescopic rod is not subjected to compression and rebound, the impact of the rebound is reduced by the obstruction of the blocking blocks.
[0008] The blocking block is made of rubber, and there are two connecting flanges that are symmetrical to each other along the vertical central axis of the bellows. The fact that the blocking block is made of rubber is beneficial because when the slider moves upward, it is squeezed by the blocking block and moved into the rectangular frame.
[0009] The block plate, hinge rod, and connecting rod are provided in two parts and are symmetrical to each other along the vertical central axis of spring one. The design of spring one is conducive to adjusting the impact pressure of the compensator inside the pipeline. The elasticity of spring one reduces the impact and adjusts the compression.
[0010] The slider has an arc surface on the side near the blocking block. Several connecting plates, bolts, and nuts are arranged in a circumferential array on the circumferential surface of the connecting flange plate, which facilitates the installation of the entire corrugated compensator in a pipeline.
[0011] According to another aspect, at least one embodiment of this disclosure also provides an adjustable corrugated compensator, comprising: a connection protection assembly provided on the side of the connecting flange plate, the connection protection assembly including an arc rod, one end of the arc rod being fixedly connected to the side of the connecting flange plate, a support rod being fixedly connected to the side of the arc rod, a rotating shaft being rotatably connected to one end of the support rod, a protective plate being fixedly connected to the circumferential surface of the rotating shaft, a rotating rod being rotatably connected to the end of the protective plate away from the rotating shaft, a support plate being fixedly connected to the side of the arc rod, a thin rod being fixedly connected to the top of the support plate, a horizontal plate being fixedly connected to the top of the thin rod, and a limit groove being formed on the top of the horizontal plate, the protective plate being used to block the connection of the nut and bolt, thereby protecting the connection.
[0012] For example, in at least one embodiment of the present disclosure, an adjustable corrugated compensator is provided, which further includes: the limiting groove is located on the displacement trajectory of the rotating rod, the protective plate is located on the top of the nut, and the limiting groove is designed to temporarily fix the position of the protective plate.
[0013] Two circular arc rods are provided, and they are symmetrical to each other along the vertical central axis of the connecting plate. The provision of two circular arc rods helps to provide stable support.
[0014] The protective plate is designed in an arc shape, and the connecting protective components are arranged in several groups, which are arranged in a circumferential array on the circumferential surface of the connecting flange plate. This is beneficial for blocking and protecting multiple connection points.
[0015] The rotating rod is rectangular, and the limiting groove is rectangular, which facilitates the rotating rod to pass through the limiting groove and to be locked in the limiting groove.
[0016] The beneficial effects of the embodiments disclosed herein are as follows:
[0017] 1. In this disclosure, through the cooperation of components such as connecting plates, bolts, nuts, springs, and telescopic rods within the vibration damping and buffer assembly, the bellows can effectively cope with vibrations and impacts inside the pipeline through the cooperation of springs and telescopic rods. The up-and-down swaying of the bellows is adjusted to reduce the impact on the pipeline, avoid excessive pressure concentration in a certain part, and prevent damage to the pipeline caused by impact. When the bellows is not subjected to external impact, it can automatically reset through the action of springs and telescopic rods, which helps maintain the stability of the system and avoids the long-term impact on the system. The interaction between the slider and the blocking block can control the downward movement speed of the bellows, reducing excessive pressure and impact.
[0018] 2. In this disclosure, by connecting the components such as the arc rod, support rod, rotating shaft, protective plate, and horizontal plate inside the protective assembly, the connection of the nut and bolt is covered by the protective plate, which can effectively prevent dust, dirt or external environment from corroding or damaging the connection, thereby extending the service life of the compensator. Especially in some harsh environments (such as chemicals, moisture, etc.), this protection can provide important protection. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0020] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of this disclosure;
[0021] Figure 2 This is a three-dimensional magnified structural diagram of the bellows section of this disclosure;
[0022] Figure 3 This is a three-dimensional enlarged structural diagram of the telescopic rod in this disclosure;
[0023] Figure 4 For this disclosure Figure 3 A three-dimensional magnified structural diagram of A in the middle;
[0024] Figure 5 This is a three-dimensional magnified structural diagram of the protective plate in this disclosure.
[0025] In the diagram: 1. Bellows; 2. Connecting flange plate; 3. Vibration damping and buffer assembly; 31. Connecting plate; 32. Bolt; 33. Nut; 34. Connecting rod; 35. Square plate; 36. Hinge rod; 37. Telescopic rod; 38. Spring 1; 39. Short rod; 310. Rectangular frame; 311. Spring 2; 312. Slider; 313. Long rod; 314. Blocking block; 4. Connecting protection assembly; 41. Arc rod; 42. Support rod; 43. Rotating shaft; 44. Protective plate; 45. Rotating rod; 46. Support plate; 47. Thin rod; 48. Horizontal plate; 49. Limiting groove. Detailed Implementation
[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] like Figures 1-5The diagram illustrates an adjustable bellows compensator according to an embodiment of this disclosure, comprising a bellows 1, a connecting flange 2 fixedly connected to the side of the bellows 1, a vibration damping and adjusting buffer assembly 3 disposed on the circumferential surface of the bellows 1, the vibration damping and adjusting buffer assembly 3 including a connecting plate 31, the bottom of the connecting plate 31 being fixedly connected to the circumferential surface of the connecting flange 2, a bolt 32 penetrating through the side of the connecting plate 31, a nut 33 threadedly connected to the circumferential surface of the bolt 32, a connecting rod 34 fixedly connected to the circumferential surface of the bellows 1, a square plate 35 fixedly connected to the side of the connecting rod 34, and a hinge fixedly connected to the bottom of the square plate 35. A telescopic rod 37 is fixedly connected to the bottom of the hinge rod 36. A spring 38 is fixedly connected to the bottom of the hinge rod 36. The end of the spring 38 away from the hinge rod 36 is fixedly connected to the outer wall of the telescopic rod 37. A short rod 39 is fixedly connected to the circumferential surface of the telescopic end of the telescopic rod 37. A rectangular frame 310 is fixedly connected to the end of the short rod 39 away from the telescopic rod 37. A spring 311 is fixedly connected to the inner wall of the rectangular frame 310. A slider 312 is fixedly connected to the end of the spring 311 away from the rectangular frame 310. A long rod 313 is fixedly connected to the side of the connecting rod 34. A blocking block 314 is fixedly connected to the side of the long rod 313.
[0033] In some examples, the blocking block 314 is located on the displacement trajectory of the slider 312. Several blocking blocks 314 are provided and arranged in a linear array on the side of the long rod 313. The slider 312 is designed to reduce the impact of the rebound by blocking the blocking block 314 when the telescopic rod 37 is not squeezed and rebounds.
[0034] The blocking block 314 is made of rubber. There are two connecting flange plates 2, which are symmetrical to each other along the vertical central axis of the bellows 1. The blocking block 314 is made of rubber, which is beneficial to the slider 312 being squeezed into the rectangular frame 310 when it moves upward.
[0035] There are two square plates 35, hinge rods 36, and connecting rods 34, which are symmetrical to each other along the vertical central axis of spring 38. The design of spring 38 is conducive to adjusting the impact pressure of the compensator inside the pipeline. The elasticity of spring 38 reduces the impact and adjusts the compression.
[0036] The slider 312 has an arc surface on the side near the blocking block 314. Several connecting plates 31, bolts 32, and nuts 33 are arranged in a circumferential array on the circumferential surface of the connecting flange plate 2, which is conducive to installing the entire corrugated compensator in a certain pipeline.
[0037] For example, such as Figures 1-5As shown, align bolt 32 with the flange of the pipe to be installed, then insert bolt 32 through the flange plate of the pipe. After insertion, insert nut 33 through bolt 32 and tighten nut 33. Install bellows 1 in the pipe. To adjust the impact and pressure on bellows 1, utilize the telescopic force of telescopic rod 37 and the elastic force of spring 38. Adjust the impact and pressure on bellows 1 as it swings up and down. When bellows 1 is impacted and moves downward, it will squeeze telescopic rod 37 and spring 38 downward, causing telescopic rod 37 to move downward. The movement will cause the short rod 39, rectangular frame 310, spring 311, and slider 312 to move downwards. When slider 312 moves downwards, its arc surface will contact the blocking block 314. When the arc surface contacts the blocking block 314, the resistance will decrease, and slider 312 will move downwards faster. When slider 312 moves downwards and contacts the blocking block 314, it will be squeezed by the blocking block 314 and moved into the rectangular frame 310. This adjusts the downward speed of slider 312 and reduces impact. When bellows 1 is not impacted, bellows 1 will move downwards through the spring. When spring 38 and telescopic rod 37 automatically reset, telescopic rod 37 will move upwards. This upward movement of telescopic rod 37 will drive short rod 39, rectangular frame 310, spring 311, and slider 312 upwards. When slider 312 moves upwards, blocking block 314 first contacts the non-curved side of slider 312. Because of the non-curved surface of slider 312, resistance increases, and the movement speed becomes too slow. Adjusting and reducing the impact force of the rebound of telescopic rod 37, spring 38, and bellows 1 reduces vibration. This is achieved through the cooperation of spring 38 and telescopic rod 37. The bellows 1 can effectively cope with the vibration and impact inside the pipe. The up and down sway of the bellows 1 can be adjusted to reduce the impact on the pipe and avoid excessive pressure concentration in a certain part, thus avoiding damage to the pipe caused by the impact. When the bellows 1 is not subjected to external impact, it can automatically reset through the action of spring 38 and telescopic rod 37. This helps to maintain the stability of the system and avoid the long-term impact on the system. The interaction between the slider 312 and the blocking block 314 can control the downward movement speed of the bellows 1 and reduce excessive pressure and impact.
[0038] like Figures 1-5As shown, an adjustable corrugated compensator according to another embodiment of the present disclosure is illustrated, comprising: a connecting protection assembly 4 provided on the side of the connecting flange plate 2, the connecting protection assembly 4 including an arc rod 41, one end of the arc rod 41 being fixedly connected to the side of the connecting flange plate 2, a support rod 42 being fixedly connected to the side of the arc rod 41, a rotating shaft 43 being rotatably connected to one end of the support rod 42, a protective plate 44 being fixedly connected to the circumferential surface of the rotating shaft 43, a rotating rod 45 being rotatably connected to the end of the protective plate 44 away from the rotating shaft 43, a support plate 46 being fixedly connected to the side of the arc rod 41, a thin rod 47 being fixedly connected to the top of the support plate 46, a horizontal plate 48 being fixedly connected to the top of the thin rod 47, and a limit groove 49 being provided on the top of the horizontal plate 48. The protective plate 44 is used to block the connection between the nut 33 and the bolt 32, thereby protecting the connection.
[0039] In some examples, the limiting groove 49 is located on the displacement trajectory of the rotating rod 45, and the protective plate 44 is located on top of the nut 33. The limiting groove 49 is designed to temporarily fix the position of the protective plate 44.
[0040] Two circular arc rods 41 are provided, and they are symmetrical to each other along the vertical central axis of the connecting plate 31. Providing two circular arc rods 41 is beneficial for providing stable support.
[0041] The protective plate 44 is set in an arc shape, and several sets of connecting protective components 4 are arranged along the circumference on the circumferential surface of the connecting flange plate 2, which is beneficial to block and protect multiple connection points.
[0042] The rotating rod 45 is rectangular, and the limiting groove 49 is rectangular. The limiting groove 49 is rectangular, which makes it easy to pass the rotating rod 45 through the limiting groove 49 and to lock the rotating rod 45 in the limiting groove 49.
[0043] For example, such as Figures 1-5 As shown, the protective plate 44 rotates along the shaft 43 towards the side closer to the nut 33, blocking the connection between the nut 33 and the bolt 32. When the protective plate 44 rotates, it drives the rotating rod 45 to move. The rotating rod 45 is moved to the top of the horizontal plate 48. First, the rotating rod 45 is rotated parallel to the limiting groove 49. Then, the rotating rod 45 passes through the limiting groove 49. After passing through, the rotating rod 45 is rotated again until it is perpendicular to the limiting groove 49, thus locking the rotating rod 45 within the limiting groove 49 on the horizontal plate 48. This temporarily fixes the position of the protective plate 44, continuously blocking the connection between the nut 33 and the bolt 32 for protection. By using the protective plate 44 to shield the connection between the nut 33 and the bolt 32, it effectively prevents dust, dirt, or external environmental factors from corroding or damaging the connection, thereby extending the service life of the compensator. This protection is particularly important in harsh environments (such as chemicals, moisture, etc.).
[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. An adjustable corrugation compensator, characterized in that, Includes a bellows (1), a connecting flange plate (2) is fixedly connected to the side of the bellows (1), and a vibration damping and buffer assembly (3) is provided on the circumferential surface of the bellows (1). The vibration damping and buffer assembly (3) includes a connecting plate (31). The bottom of the connecting plate (31) is fixedly connected to the circumferential surface of the connecting flange plate (2). A bolt (32) passes through the side of the connecting plate (31). A nut (33) is threaded onto the circumferential surface of the bolt (32). A connecting rod (34) is fixedly connected to the circumferential surface of the bellows (1). A square plate (35) is fixedly connected to the side of the connecting rod (34). A hinge rod (36) is fixedly connected to the bottom of the square plate (35). A telescopic rod (37) is fixedly connected to the bottom of the hinge rod (36). A spring is fixedly connected to the bottom of the hinge rod (36). Spring 1 (38), the end of spring 1 (38) away from the hinge rod (36) is fixedly connected to the outer wall of the telescopic rod (37), a short rod (39) is fixedly connected to the circumferential surface of the telescopic end of the telescopic rod (37), a rectangular frame (310) is fixedly connected to the end of the short rod (39) away from the telescopic rod (37), a spring 2 (311) is fixedly connected to the inner wall of the rectangular frame (310), a slider (312) is fixedly connected to the end of spring 2 (311) away from the rectangular frame (310), a long rod (313) is fixedly connected to the side of the connecting rod (34), and a blocking block (314) is fixedly connected to the side of the long rod (313).
2. The adjustable corrugated compensator according to claim 1, characterized in that, The blocking block (314) is located on the displacement trajectory of the slider (312). Several blocking blocks (314) are provided and are arranged in a linear array on the side of the long rod (313).
3. The adjustable corrugated compensator according to claim 2, characterized in that, The blocking block (314) is made of rubber, and there are two connecting flange plates (2), which are symmetrical to each other along the vertical central axis of the bellows (1).
4. The adjustable corrugated compensator according to claim 3, characterized in that, Two of the block plate (35), hinge rod (36), and connecting rod (34) are provided and are symmetrical to each other along the vertical central axis of spring one (38).
5. The adjustable corrugated compensator according to claim 4, characterized in that, The slider (312) has an arc surface on the side near the blocking block (314), and a number of connecting plates (31), bolts (32), and nuts (33) are arranged in a circumferential array on the circumferential surface of the connecting flange plate (2).
6. The adjustable corrugated compensator according to claim 5, characterized in that, A connecting protection assembly (4) is provided on the side of the connecting flange plate (2). The connecting protection assembly (4) includes an arc rod (41). One end of the arc rod (41) is fixedly connected to the side of the connecting flange plate (2). A support rod (42) is fixedly connected to the side of the arc rod (41). A rotating shaft (43) is rotatably connected to one end of the support rod (42). A protective plate (44) is fixedly connected to the circumferential surface of the rotating shaft (43). A rotating rod (45) is rotatably connected to the end of the protective plate (44) away from the rotating shaft (43). A support plate (46) is fixedly connected to the side of the arc rod (41). A thin rod (47) is fixedly connected to the top of the support plate (46). A horizontal plate (48) is fixedly connected to the top of the thin rod (47). A limit groove (49) is provided on the top of the horizontal plate (48).
7. The adjustable corrugated compensator according to claim 6, characterized in that, The limiting groove (49) is located on the displacement trajectory of the rotating rod (45), and the protective plate (44) is located on the top of the nut (33).
8. The adjustable corrugated compensator according to claim 7, characterized in that, Two circular arc rods (41) are provided, and they are symmetrical to each other along the vertical central axis of the connecting plate (31).
9. The adjustable corrugated compensator according to claim 8, characterized in that, The protective plate (44) is set in an arc shape, and the connecting protective components (4) are arranged in several groups and are arranged in a circumferential array on the circumferential surface of the connecting flange plate (2).
10. An adjustable corrugation compensator according to claim 9, characterized in that, The rotating rod (45) is rectangular, and the limiting groove (49) is rectangular.
Citation Information
Patent Citations
Adjusting type ripple compensator
CN221374917U