Double-wall corrugated pipe sleeve type compensator

Abstract

The utility model discloses a double-wall corrugated pipe sleeve type compensator which comprises a corrugated pipe, flange rings are arranged at the two ends of the corrugated pipe, a plurality of containing grooves are formed in the surfaces of the sides, close to butt joint grooves, of two sliding grooves, restraining mechanisms used for restraining the corrugated pipe are arranged in the containing grooves, and air bags are installed in the sides, away from the corrugated pipe, of the two butt joint grooves. The surfaces of the sides, away from the corrugated pipe, of the two air bags are provided with expansion mechanisms used for expanding the air bags. Through the arrangement of the fixing ring, the overhaul and maintenance time of the corrugated pipe is greatly shortened, the second limiting rod is installed in the fixing ring and matched with the spiral ring, and when the spiral ring is reset, due to the fact that extrusion of the spiral ring is lost, the second limiting rod can be reset under the action of the second spring, and the spiral ring is prevented from being damaged. And after the corrugated pipe is not clamped and fixed by the second limiting rod, the corrugated pipe can be taken down immediately.

Description

TECHNICAL FIELD

[0001] The utility model relates to sleeve type compensator technical field especially relates to double -walled bellows sleeve type compensator. BACKGROUND

[0002] Double -walled bellows sleeve type compensator is an important pipeline connection and adjusting equipment, is widely used in various industrial fields, especially heat pipeline and petrochemical industry, and its main function is to absorb the pipeline deformation caused by temperature change or mechanical vibration, ensure the stability and safety of pipeline system. Double -walled bellows structure is composed of two layers of bellows and corresponding sleeve, and the inner layer bellows effectively resists the internal and external pressure through the bellows structure, and the outer layer bellows is used for protecting the inner layer, increases the durability and reliability of the equipment. Double -walled bellows sleeve type compensator is an important component of pipeline system, and plays an indispensable role in modern industry with its excellent function and reliable performance.

[0003] But some bellows in prior art are connected with flange ring mostly through the welding mode, when the bellows is overhauled and maintained, the bellows and the flange ring need to be welded first, after the overhauling and maintenance, then the two are welded again, so that the overhauling and maintenance time is too long, therefore, the problem needs to be solved. UTILITY MODEL CONTENTS

[0004] The utility model discloses a double -walled bellows sleeve type compensator to solve the technical problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] Double -walled bellows sleeve type compensator, including bellows, the bellows both ends are equipped with flange ring, two The flange ring near the bellows one side surface all are fixedly connected with fixed ring, two The fixed ring near the bellows one side surface all are equipped with butt joint groove, the bellows is connected in the two butt joint groove inside, two The fixed ring away from the bellows one side surface all are equipped with two sliding slots, two The sliding slot near butt joint groove one side surface all are equipped with a plurality of storage grooves, a plurality of The storage groove inside all are equipped with the constraint mechanism for the constraint bellows, two The butt joint groove away from the bellows one side inside all are installed gasbag, two The gasbag away from the bellows one side surface all are equipped with the expansion mechanism for the expansion gasbag, through the setting of fixed ring, the time of bellows overhauling and maintenance is greatly reduced.

[0007] As a further scheme of the utility model, the constraint mechanism comprises a second limiting rod, the second limiting rod is slidingly connected to one side of the storage groove, a pressure plate is fixedly connected to the surface of the side of the second limiting rod away from the butt joint groove, a second spring is sleeved on the surface of the side of the second limiting rod close to the storage groove, one end of the second spring is fixedly connected to one side of the pressure plate, the other end of the second spring is fixedly connected to one side inside the storage groove, and a moving mechanism for moving the second limiting rod is arranged on the surface of the side of the pressure plate away from the second limiting rod, the arrangement of the second limiting rod can constrain the corrugated pipe.

[0008] As a further scheme of the utility model, the moving mechanism comprises a screw ring, the screw ring is sleeved on the surface of the flange ring, a threaded groove is formed in the surface of the side of the flange ring close to the screw ring, the threaded groove and the screw ring are arranged in a matching mode, an extrusion groove is formed in the screw ring close to the threaded groove, the two sides of the bottom of the extrusion groove are symmetrically and obliquely arranged, the extrusion groove and the fixed ring are arranged in a matching mode, and a plurality of limiting holes are formed in the top of the screw ring and are evenly arranged in a ring shape, the arrangement of the screw ring can move the second limiting rod.

[0009] As a further scheme of the utility model, the expansion mechanism comprises a piston chamber, the piston chamber is formed in the top of the fixed ring, the piston chamber and the air bag are arranged in a matching mode, a piston ring is slidingly connected to the inside of the piston chamber, a plurality of first limiting rods are fixedly connected to the top of the piston ring and are evenly arranged in a ring shape, the plurality of first limiting rods are slidingly connected to the top of the fixed ring, the same pressing ring is fixedly connected to the top of the plurality of first limiting rods, a first spring is sleeved on the surface of each of the plurality of first limiting rods, the bottom end of each of the plurality of first springs is fixedly connected to the top of the fixed ring, the top end of each of the plurality of first springs is fixedly connected to the bottom of the pressing ring, the pressing ring and the screw ring are arranged in a matching mode, and the arrangement of the piston ring can expand the air bag.

[0010] The utility model discloses the beneficial effects are:

[0011] 1. The utility model discloses a fixed ring and corrugated pipe connect technical scheme, so when the fixed ring cooperates with the second limiting rod, can make the corrugated pipe can be maintained and overhauled quickly, thereby effectively solve the majority through the welding mode and connect, when the corrugated pipe is maintained and overhauled, need first the corrugated pipe with flange ring is welded, after maintaining and overhauling, then weld two, thereby lead to the problem of the time of maintaining and overhauling too long, when the screw ring resets, because the extrusion of the screw ring is lost, so the second limiting rod also resets under the action of the second spring, and the corrugated pipe can be removed immediately after losing the clamping and fixing of the second limiting rod, because in the process of detection and maintenance, do not need repeatedly weld, so can greatly reduce the time needed for inspection and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The whole structure schematic diagram of the double-wall corrugated pipe sleeve type compensator is provided in the utility model;

[0013] Figure 2 The layered structure schematic diagram of the double-wall corrugated pipe sleeve type compensator is provided in the utility model;

[0014] Figure 3 The expansion mechanism schematic diagram of the double-wall corrugated pipe sleeve type compensator is provided in the utility model;

[0015] Figure 4 The expansion mechanism schematic diagram of the double-wall corrugated pipe sleeve type compensator is provided in the utility model; Figure 3 The expansion mechanism schematic diagram of the double-wall corrugated pipe sleeve type compensator is provided in the utility model;

[0016] Figure 5 The expansion mechanism schematic diagram of the double-wall corrugated pipe sleeve type compensator is provided in the utility model; Figure 3 The expansion mechanism schematic diagram of the double-wall corrugated pipe sleeve type compensator is provided in the utility model;

[0017] Figure 6 The movement mechanism schematic diagram of the double-wall corrugated pipe sleeve type compensator is provided in the utility model.

[0018] In the figure: 1, corrugated pipe; 2, flange ring; 3, fixed ring; 4, compression ring; 5, screw ring; 201, thread groove; 301, sliding groove; 302, storage groove; 303, butt joint groove; 304, piston chamber; 305, air bag; 401, piston ring; 402, first limiting rod; 403, first spring; 404, pressure plate; 405, second limiting rod; 406, second spring; 501, extrusion groove; 502, limiting hole. DETAILED DESCRIPTION

[0019] 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, not all the embodiments.

[0020] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0021] Reference is made to Figures 1-6The double-wall corrugated pipe sleeve type compensator comprises a corrugated pipe 1, flange rings 2 arranged at both ends of the corrugated pipe 1, fixed rings 3 fixedly connected to the surfaces of the two flange rings 2 close to the corrugated pipe 1, abutting grooves 303 arranged on the surfaces of the two fixed rings 3 close to the corrugated pipe 1, the corrugated pipe 1 being slidably connected in the two abutting grooves 303, two slide grooves 301 symmetrically arranged on the surfaces of the two fixed rings 3 away from the corrugated pipe 1, a plurality of storage grooves 302 arranged on the surfaces of the two slide grooves 301 close to the abutting grooves 303, a constraint mechanism arranged in each of the plurality of storage grooves 302 for constraining the corrugated pipe 1, air bags 305 arranged in the interiors of the two abutting grooves 303 away from the corrugated pipe 1, and expansion mechanisms arranged on the surfaces of the two air bags 305 away from the corrugated pipe 1 for expanding the air bags 305. The fixed rings 3 greatly reduce the time for maintenance of the corrugated pipe 1.

[0022] With reference to Figure 1 , Figure 3 and Figure 5 , in a preferred embodiment, the constraint mechanism comprises a second limiting rod 405 slidably connected to one side of the storage groove 302, a pressing disc 404 fixedly connected to the surface of the second limiting rod 405 away from the abutting groove 303, a second spring 406 sleeved on the surface of the second limiting rod 405 close to the storage groove 302, one end of the second spring 406 being fixedly connected to one side of the pressing disc 404, and the other end of the second spring 406 being fixedly connected to one side in the interior of the storage groove 302, and a moving mechanism arranged on the surface of the pressing disc 404 away from the second limiting rod 405 for moving the second limiting rod 405. The second limiting rod 405 can constrain the corrugated pipe 1.

[0023] With reference to Figure 5 and Figure 6 , in a preferred embodiment, the moving mechanism comprises a screw ring 5 sleeved on the surface of the flange ring 2, a threaded groove 201 arranged on the surface of the flange ring 2 close to the screw ring 5, the threaded groove 201 and the screw ring 5 being arranged in mutual cooperation, an extrusion groove 501 arranged on the screw ring 5 close to the threaded groove 201, the bottom of the extrusion groove 501 being symmetrically and obliquely arranged on both sides, the extrusion groove 501 and the fixed ring 3 being arranged in mutual cooperation, and a plurality of limiting holes 502 arranged on the top of the screw ring 5 in a ring shape. The screw ring 5 can move the second limiting rod 405.

[0024] With reference to Figures 3-5In a preferred implementation, the inflation mechanism comprises a piston chamber 304, which is arranged on the top of the fixed ring 3, and the piston chamber 304 is arranged in cooperation with the air bag 305, and the piston ring 401 is slidably connected inside the piston chamber 304, and the first limiting rods 402 are fixedly connected on the top of the piston ring 401, and the first limiting rods 402 are evenly fixed in a ring shape, and the first limiting rods 402 are slidably connected on the top of the fixed ring 3, and the same pressing ring 4 is fixedly connected on the top of the first limiting rods 402, and the first springs 403 are sleeved on the surfaces of the first limiting rods 402, and the bottom ends of the first springs 403 are fixedly connected on the top of the fixed ring 3, and the top ends of the first springs 403 are fixedly connected on the bottom of the pressing ring 4, and the pressing ring 4 is arranged in cooperation with the screw ring 5, and the air bag 305 can be inflated through the arrangement of the piston ring 401.

[0025] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: when the corrugated pipe 1 needs to be detected and maintained, the screw ring 5 can be rotated, because the screw ring 5 is connected with the flange ring 2 through the thread groove 201, so when the screw ring 5 is rotated, it can be moved upwards, the fixed ring 3 is installed on the bottom of the screw ring 5, and the fixed ring 3 is matched with the screw ring 5, the second limiting rod 405 is installed inside the fixed ring 3, when the fixed ring 3 is matched with the screw ring 5, the screw ring 5 will extrude the second limiting rod 405, so that it clamps and fixes the corrugated pipe 1, and when the screw ring 5 is reset, because the extrusion of the screw ring 5 is lost, the second limiting rod 405 will also be reset under the action of the second spring 406, and after the clamping and fixing of the second limiting rod 405 is lost, the corrugated pipe 1 can be taken down immediately, because welding needs to be repeated during detection and maintenance, so the time required for inspection and maintenance can be greatly reduced.

[0026] For the purposes of this description, spatially relative terms, such as "above", "below", "up", "down", "between", "within", "lower", "upper", and the like, can be used herein for ease of description to describe one element's or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation that is above as well as below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation that is above as well as below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0027] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0028] It should be noted that the terms "first", "second", and the like, used in the specification and in the claims of the application, as well as above-described appended drawings, are used to distinguish similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the use of the terms so construed can be interchanged, where appropriate, to devise the embodiments of the application described herein, for example, can be practiced in other than the illustrated or described order. Additionally, the terms "comprising" and "including" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or apparatus that comprises a list of steps or units can not necessarily be limited to those steps or units that are clearly recited, but can include other not expressly recited steps or units, without departing from such process, method, product, or apparatus.

[0029] The preferred embodiments of the application are described above in detail. The application can be modified and changed by those skilled in the art without departing from the spirit and principle of the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. Double-wall bellows sleeve compensator comprising a bellows (1), characterized in that, The corrugated pipe (1) is provided with flange rings (2) at both ends, two fixed rings (3) are fixedly connected to the side surfaces of the two flange rings (2) close to the corrugated pipe (1), two butt grooves (303) are formed in the side surfaces of the two fixed rings (3) close to the corrugated pipe (1), the corrugated pipe (1) is slidably connected in the two butt grooves (303), two slide grooves (301) are symmetrically formed in the side surfaces of the two fixed rings (3) away from the corrugated pipe (1), a plurality of accommodation grooves (302) are formed in the side surfaces of the two slide grooves (301) close to the butt grooves (303), a constraint mechanism for constraining the corrugated pipe (1) is arranged in the plurality of accommodation grooves (302), and air bags (305) are arranged in the side surfaces of the two butt grooves (303) away from the corrugated pipe (1).

2. The double wall corrugated pipe sleeve compensator of claim 1, wherein, The constraint mechanism comprises a second limiting rod (405), the second limiting rod (405) is slidably connected to one side of the accommodation groove (302), and the second limiting rod (405) is fixedly connected with a pressure plate (404) on the side surface away from the butt groove (303).

3. The double wall corrugated pipe sleeve compensator of claim 2, wherein, One end of the second spring (406) is fixedly connected to one side of the pressure plate (404), the other end of the second spring (406) is fixedly connected to one side in the accommodation groove (302), and the side surface of the pressure plate (404) away from the second limiting rod (405) is provided with a moving mechanism for moving the second limiting rod (405).

4. The double wall corrugated pipe sleeve compensator of claim 3, wherein, The moving mechanism comprises a screw ring (5), the screw ring (5) is sleeved on the surface of the flange ring (2), a threaded groove (201) is formed in the side surface of the flange ring (2) close to the screw ring (5), the threaded groove (201) and the screw ring (5) are arranged in a matched mode, the screw ring (5) is provided with an extrusion groove (501) close to the threaded groove (201), the bottom of the extrusion groove (501) is symmetrically and obliquely arranged, the extrusion groove (501) and the fixed ring (3) are arranged in a matched mode, a plurality of limiting holes (502) are formed in the top of the screw ring (5), and the plurality of limiting holes (502) are annularly and uniformly arranged.

5. The double wall corrugated pipe sleeve compensator of claim 4, wherein, The inflation mechanism comprises a piston bin (304), the piston bin (304) is formed in the top of the fixed ring (3), the piston bin (304) and the air bag (305) are arranged in a matched mode, a piston ring (401) is slidably connected in the piston bin (304), a plurality of first limiting rods (402) are fixedly connected to the top of the piston ring (401), and the plurality of first limiting rods (402) are annularly and uniformly fixed.

6. The double wall corrugated pipe sleeve compensator of claim 5, wherein, A plurality of first limiting rods (402) are all slidingly connected to the top of the fixed ring (3), the top of the plurality of first limiting rods (402) is fixedly connected with the same compression ring (4), the surface of the plurality of first limiting rods (402) is all sleeved with the first spring (403), the bottom end of the plurality of first springs (403) is all fixedly connected to the top of the fixed ring (3), the top end of the plurality of first springs (403) is all fixedly connected to the bottom of the compression ring (4), and the compression ring (4) and the screw ring (5) are arranged in cooperation.

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