Novel corrugated pipe compensator

Abstract

The utility model mainly relates to the technical field of corrugated pipe compensators, in particular to a novel corrugated pipe compensator. Comprising a corrugated pipe, flange plates are assembled at the two ends of the corrugated pipe, two symmetrically-distributed first connecting plates are arranged on the outer sides of the flange plates, the two first connecting plates aligned with mounting holes are sleeved with threaded rods, and the two ends of each threaded rod are in threaded connection with first nuts; the device further comprises two movable rings, the two movable rings are coaxially and symmetrically distributed between the two flange plates, a first limiting sleeve and a second limiting sleeve are fixedly installed on the outer sides of the movable rings, and the first limiting sleeve and the second limiting sleeve are movably installed on the two threaded rods respectively. When the corrugated pipe elastically deforms, the two contracted ends of the corrugated pipe can be limited through the first limiting sleeve and the second limiting sleeve so as to prevent the corrugated pipe from being broken due to excessive contraction of the corrugated pipe, so that the service life of the corrugated pipe can be prolonged, and the contraction limiting position of the corrugated pipe can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the technical field of corrugated pipe compensator, specifically relates to a novel corrugated pipe compensator. BACKGROUND

[0002] As a key device for absorbing thermal expansion and contraction, vibration and displacement in pipeline systems, corrugated pipe compensators are widely used in the fields of petroleum and chemical industry, electric power, heat supply, etc. The core principle is to realize axial compensation through the elastic deformation of the corrugated pipe, thereby reducing the pipeline stress and prolonging the system life. However, the existing corrugated pipe compensators still have significant technical defects in practical application. The corrugated pipe structure of the existing corrugated pipe compensators usually relies on the elastic deformation of the material to realize expansion and contraction compensation, but lacks an active restriction mechanism for the contraction amplitude. When the pipeline produces excessive contraction due to sudden temperature drop or external pressure change, the corrugated pipe may be over-compressed due to exceeding the designed compensation amount, causing mutual extrusion between the wave crests and troughs or even plastic deformation, thereby causing local stress concentration, weld cracking or corrugated pipe rupture, especially under high-frequency vibration or extreme working conditions, such problems are more prominent. SUMMARY

[0003] 1. Technical problem to be solved by the utility model:

[0004] The utility model provides a novel corrugated pipe compensator to solve the technical problems existing in the above background technology.

[0005] 2. Technical scheme:

[0006] To achieve the above-mentioned purpose, the utility model provides a technical scheme: a novel corrugated pipe compensator, comprising a corrugated pipe, both ends of the corrugated pipe are equipped with flanges, the outer side of the flange is provided with two symmetrically distributed first connecting plates, two first connecting plates with aligned mounting holes are sleeved with threaded rods, both ends of the threaded rod are threadedly connected with first nuts.

[0007] It further comprises a movable ring, the number of the movable ring is two, coaxially and symmetrically distributed between two flanges, the outer side of the movable ring is fixedly installed with a first limiting sleeve and a second limiting sleeve, the first limiting sleeve and the second limiting sleeve are movably installed on two threaded rods respectively.

[0008] Further, one of the threaded rods is rotatably installed with a connecting sleeve, the other threaded rod is slidably connected with two first limiting sleeves, the outer side of the connecting sleeve is provided with a first thread and a second thread at both ends respectively, the first thread and the second thread are opposite in thread direction and are threadedly connected with two second limiting sleeves respectively.

[0009] Further, a second nut is fixedly installed on the connecting sleeve, the second nut is located between the first thread and the second thread.

[0010] Further, the outer side of the flange plate is also fixedly provided with two symmetrically distributed second connecting plates, and the two second connecting plates with aligned mounting holes are connected through a buffer mechanism.

[0011] Further, the buffer mechanism comprises a piston rod, one end of the piston rod is fixedly connected with one of the second connecting plates, and the other end is matchedly connected with an oil cylinder, and the oil cylinder is fixedly installed on the other second connecting plate.

[0012] 3. Beneficial effects:

[0013] Compared with the prior art, the technical scheme has the beneficial effects that when the corrugated pipe is elastically deformed, the first limiting sleeve and the second limiting sleeve can limit the two ends of the corrugated pipe, so that the corrugated pipe is prevented from being broken due to excessive contraction, and the service life of the corrugated pipe is prolonged.

[0014] After the connecting sleeve is driven to rotate, the threads of the first thread and the second thread are threadedly connected with the threads of the two second limiting sleeves, so that the two first limiting sleeves are driven to slide on the other threaded rod, and the spacing between the two first limiting sleeves and the two second limiting sleeves can be adjusted, so that the limiting position of the corrugated pipe during contraction can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a structural schematic view of the utility model;

[0016] Fig. 2 is a connecting structure schematic view of the movable ring of the utility model;

[0017] Fig. 3 is a connecting structure schematic view of the second limiting sleeve and the connecting sleeve of the utility model.

[0018] Reference signs:

[0019] 1, corrugated pipe; 2, flange plate; 3, first connecting plate; 4, threaded rod; 5, first nut; 6, movable ring; 7, first limiting sleeve; 8, second limiting sleeve; 9, connecting sleeve; 91, first thread; 92, second thread; 10, second nut; 11, second connecting plate; 12, piston rod; 13, oil cylinder. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings, and the drawings show several embodiments of the utility model, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0023] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment

[0024] Referring to the drawings Figs. 1-3 A novel corrugated pipe compensator, comprising a corrugated pipe 1, both ends of the corrugated pipe 1 are equipped with flanges 2, the outer side of the flange 2 is provided with two symmetrical first connecting plates 3, the two first connecting plates 3 with aligned mounting holes are sleeved with threaded rods 4, both ends of the threaded rod 4 are threadedly connected with first nuts 5.

[0025] It also includes a movable ring 6, the number of the movable ring 6 is two, coaxially and symmetrically distributed between the two flanges 2, the outer side of the movable ring 6 is fixedly installed with a first limiting sleeve 7 and a second limiting sleeve 8, the first limiting sleeve 7 and the second limiting sleeve 8 are movably installed on the two threaded rods 4 respectively.

[0026] In the embodiment, when the pipeline is contracted or stretched, the bellows 1 elastically deforms and cooperates with the sliding of the first connecting plates 3 on the threaded rods 4, so that the axial compensation is realized to reduce the stress of the pipeline, and the bellows 1 can be limited at the two ends of the contraction through the first limiting sleeves 7 and the second limiting sleeves 8, so as to avoid the rupture of the bellows 1 caused by excessive contraction, thereby prolonging the service life of the bellows 1.

[0027] One of the threaded rods 4 is rotatably provided with a connecting sleeve 9, and the other threaded rod 4 is slidably connected with two first limiting sleeves 7. The connecting sleeve 9 is provided with a first thread 91 and a second thread 92 at the two ends of the outer side, respectively. The first thread 91 and the second thread 92 are oppositely threaded and are threadedly connected with the two second limiting sleeves 8, respectively.

[0028] In the embodiment, after the connecting sleeve 9 is driven to rotate, the first thread 91 and the second thread 92 are threadedly connected with the two second limiting sleeves 8, so as to drive the two first limiting sleeves 7 to slide on the other threaded rod 4, thereby adjusting the distance between the two first limiting sleeves 7 and the two second limiting sleeves 8 to adjust the limiting position of the contraction of the bellows 1.

[0029] The connecting sleeve 9 is fixedly provided with a second nut 10 between the first thread 91 and the second thread 92.

[0030] In the embodiment, after the second nut 10 is rotated by a wrench, the connecting sleeve 9 is driven to rotate to adjust the limiting position of the contraction of the bellows 1.

[0031] The flange plate 2 is further fixedly provided with two symmetrically distributed second connecting plates 11. The two second connecting plates 11 with aligned mounting holes are connected through a buffer mechanism.

[0032] The buffer mechanism comprises a piston rod 12. One end of the piston rod 12 is fixedly connected with one of the second connecting plates 11, and the other end is matchingly connected with an oil cylinder 13. The oil cylinder 13 is fixedly installed on the other second connecting plate 11.

[0033] In the embodiment, when the bellows 1 elastically deforms, the piston rod 12 cooperates with the oil cylinder 13 to slowly move in the oil cylinder 13, so as to reduce the speed of the elastic deformation of the bellows 1 to achieve the buffering effect, thereby further prolonging the service life of the bellows 1.

[0034] The above-described embodiments only express certain implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the patent scope of the present application; it should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, the protection scope of the present application patent should be subject to the appended claims.

[0035] It should be noted that the above content belongs to the technical cognition of the inventor, and since the technical content in the field is vast and too complex, the above content of the present application does not necessarily constitute the prior art.

Claims

1. A novel bellows compensator characterized by: The utility model provides a corrugated pipe (1), both ends of corrugated pipe (1) are equipped with flange (2), the outside of flange (2) is provided with two symmetrical distribution's first connecting plate (3), and the threaded rod (4) is sleeved on two first connecting plate (3) of mounting hole alignment, and the both ends of threaded rod (4) are all threadedly connected with first nut (5); It further includes movable ring (6), the number of movable ring (6) is two, coaxial and symmetrical distribution between two flange (2), the outside of movable ring (6) is fixedly installed with first limit sleeve (7) and second limit sleeve (8), and first limit sleeve (7) and second limit sleeve (8) are movably installed on two threaded rods (4) respectively.

2. A novel bellows compensator as claimed in claim 1, wherein: One of threaded rod (4) is rotatably installed with connecting sleeve (9), another threaded rod (4) is slidably connected with two first limit sleeves (7), the outside of connecting sleeve (9) both ends is provided with first thread (91) and second thread (92) respectively, first thread (91) and second thread (92) are opposite in screwing direction, and are threadedly connected with two second limit sleeves (8) respectively.

3. A novel bellows compensator as claimed in claim 2, wherein: Second nut (10) is fixedly installed on connecting sleeve (9), and second nut (10) is located between first thread (91) and second thread (92).

4. A novel bellows compensator as claimed in claim 1, wherein: The outside of flange (2) is further fixedly installed with two symmetrical distribution's second connecting plate (11), and two second connecting plates (11) of mounting hole alignment are connected through buffer mechanism.

5. A novel bellows compensator as claimed in claim 4, wherein: The buffer mechanism includes piston rod (12), one end of piston rod (12) is fixedly connected with one of second connecting plates (11), and the other end is matchedly connected with oil cylinder (13), and oil cylinder (13) is fixedly installed on the other second connecting plate (11).

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