An easy-to-install bellows compensator

Abstract

This utility model relates to the technical field of bellows compensators, and provides an easy-to-install bellows compensator, including a bellows body. Connecting pipes are welded and installed at both edges of the bellows body. An outer connecting pipe is provided on the right side of the bellows body. First flanges are fixedly installed at the edges of the two sets of connecting pipes on opposite sides. A second flange is fixedly installed at the left edge of the outer connecting pipe. Several sets of mounting holes are arranged in a circumferential array on both sets of first and second flanges. A protective mechanism is provided on the outside of the bellows body. An inner sleeve is welded and installed on the inner wall of one set of connecting pipes, with the other end of the inner sleeve extending into the interior of the other set of connecting pipes. This technical solution solves the problem that the bellows body of existing bellows compensators is easily damaged by external collisions and scratches during installation and use.

Description

Technical Field

[0001] This utility model relates to the field of bellows compensator technology, specifically to a bellows compensator that is easy to install. Background Technology

[0002] As a key component in piping systems used to absorb displacement (such as thermal expansion and contraction, vibration, etc.), the bellows body of the compensator is usually made of thin-walled metal (such as stainless steel). It has a delicate structure but is relatively weak in its ability to resist external impact and wear.

[0003] During actual installation and use, especially during pipe connection, hoisting or on-site operation, the surface of the corrugated pipe is easily scratched or dented due to tool collisions or scraping by hard objects, and may even cause damage to the corrugated pipe wall, thereby affecting the sealing performance and service life. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a bellows compensator that is easy to install, which solves the technical problem that the main body of the bellows is easily damaged by external collisions, scratches, and impurities during the installation and use of existing bellows compensators.

[0005] According to one aspect, at least one embodiment of the present invention provides a bellows compensator that is easy to install, comprising: a bellows body, connecting pipes welded and installed at both edges of the bellows body, an outer pipe provided on the right side of the bellows body, a first flange fixedly installed at the edge of each of the two sets of connecting pipes that are far apart from each other, a second flange fixedly installed at the left edge of the outer pipe, and a plurality of mounting holes arranged in a circumferential array on both the first flange and the second flange.

[0006] A protective mechanism is provided on the outside of the corrugated pipe body, and an inner sleeve is welded and installed on the inner wall of one set of connecting pipes, with the other end of the inner sleeve extending into the interior of another set of connecting pipes.

[0007] For example, in at least one embodiment of the present invention, a bellows compensator that is easy to install further includes: the protective mechanism includes an annular fixing plate, a first protective sleeve, a sliding groove, and a second protective sleeve. Annular fixing plates are fixedly installed on the outer walls of both sets of connecting pipes. A first protective sleeve is fixedly installed on one set of annular fixing plates. A sliding groove is provided on the first protective sleeve. A second protective sleeve that matches the sliding groove is fixedly installed at the corresponding position of the sliding groove on the other set of annular fixing plates. The second protective sleeve is slidably connected to the sliding groove.

[0008] For example, in at least one embodiment of the present invention, a bellows compensator that is easy to install further includes: the protective mechanism further includes a first guide rod, a first guide groove, and a spring; a plurality of sets of first guide rods are fixedly installed in a circumferential array on the inner wall of the left side of the sliding groove; a first guide groove matching the first guide rod is provided at the corresponding position of each set of first guide rods on the second protective sleeve; each set of first guide rods is slidably connected to the first guide groove at the corresponding position; a spring is sleeved on each set of first guide rods; the left side of each set of springs is fixedly connected to the inner wall of the left side of the sliding groove at the corresponding position; and the right side of each set of springs is fixedly connected to the outer wall of the left side of the second protective sleeve.

[0009] For example, in at least one embodiment of the present invention, a corrugated pipe compensator that is easy to install further includes: an annular fitting groove is provided on the outer wall of the two sets of connecting pipes on the side away from each other, and an annular fitting plate that matches the annular fitting groove is fixedly installed on the side of the outer pipe near the corrugated pipe body.

[0010] For example, in at least one embodiment of the present invention, a bellows compensator that is easy to install further includes: several sets of second guide rods are fixedly installed in a circumferential array inside each set of the annular fitting grooves; a second guide groove matching the second guide rod is opened at the corresponding position of each set of second guide rods on the annular fitting plate; and each set of second guide rods is slidably connected to the second guide groove at the corresponding position.

[0011] For example, in at least one embodiment of the present invention, a bellows compensator that is easy to install is further provided, wherein a sealing gasket is fixedly installed on the inner wall of each group of annular fitting grooves.

[0012] For example, in at least one embodiment of the present invention, a corrugated compensator that is easy to install is provided, which further includes: the inner wall of the inner sleeve is coated with a corrosion-resistant layer.

[0013] For example, in at least one embodiment of the present invention, a bellows compensator that is easy to install is provided, further comprising: the corrosion-resistant layer being made of polytetrafluoroethylene.

[0014] The beneficial effects of the embodiments of this utility model are as follows:

[0015] 1. In this device, the protective mechanism provides shielding and buffering, preventing external interference such as collisions, scratches, and dust erosion during installation and use, thus avoiding damage or corrosion to the corrugated pipe surface and extending its service life.

[0016] 2. In this device, the annular fitting groove, annular fitting plate, second guide rod, second guide groove and sealing gasket make it easy to connect the connecting pipe and the outer pipe, and at the same time further improve the sealing performance of the connection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of a bellows compensator that is easy to install, according to one embodiment of the present invention.

[0019] Figure 2 This is a schematic cross-sectional view of the present invention.

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of point A;

[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Corrugated pipe body; 2. Connecting pipe; 3. First flange; 4. Mounting hole; 5. Outer pipe; 6. Second flange; 7. Inner sleeve; 8. Annular fixing plate; 9. First protective sleeve; 10. Sliding groove; 11. Second protective sleeve; 12. First guide rod; 13. First guide groove; 14. Spring; 15. Annular fitting groove; 1501. Annular fitting plate; 16. Second guide rod; 17. Second guide groove. Detailed Implementation

[0023] The present invention 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 invention and not intended to limit its scope.

[0024] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly 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.

[0027] 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 only for the convenience of description and simplification of operation, and do not 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 utility model.

[0028] 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.

[0029] like Figures 1-4 As shown, it illustrates an easy-to-install bellows compensator according to an embodiment of the present invention, comprising: a bellows body 1, connecting pipes 2 welded and installed at both edges of the bellows body 1, an outer pipe 5 provided on the right side of the bellows body 1, a first flange 3 fixedly installed at the edge of the two sets of connecting pipes 2 that are far apart from each other, a second flange 6 fixedly installed at the left edge of the outer pipe 5, and several sets of mounting holes 4 arranged in a circumferential array on both sets of first flanges 3 and second flanges 6.

[0030] The protective mechanism is located on the outside of the corrugated pipe body 1. An inner sleeve 7 is welded and installed on the inner wall of one set of connecting pipes 2, and the other end of the inner sleeve 7 extends into the interior of another set of connecting pipes 2.

[0031] For example, such as Figure 2As shown, the protective mechanism includes an annular fixing plate 8, a first protective sleeve 9, a sliding groove 10, and a second protective sleeve 11. Annular fixing plates 8 are fixedly installed on the outer walls of both sets of connecting pipes 2. The first protective sleeve 9 is fixedly installed on one set of annular fixing plates 8, and the first protective sleeve 9 has a sliding groove 10. The second protective sleeve 11, which matches the sliding groove 10, is fixedly installed on the other set of annular fixing plates 8 at the corresponding position. The second protective sleeve 11 is slidably connected to the sliding groove 10.

[0032] For example, such as Figure 3 As shown, the protective mechanism also includes a first guide rod 12, a first guide groove 13, and a spring 14. Several sets of first guide rods 12 are fixedly installed in a circumferential array on the inner wall of the left side of the sliding groove 10. A first guide groove 13 matching the first guide rod 12 is opened at the corresponding position of each set of first guide rods 12 on the second protective sleeve 11. Each set of first guide rods 12 is slidably connected to the first guide groove 13 at the corresponding position. A spring 14 is sleeved on each set of first guide rods 12. The left side of each set of springs 14 is fixedly connected to the inner wall of the left side of the sliding groove 10 at the corresponding position, and the right side of each set of springs 14 is fixedly connected to the outer wall of the left side of the second protective sleeve 11.

[0033] In this device, the protective mechanism provides shielding and buffering, preventing external interference such as collisions, scratches, and dust erosion during installation and use, thus avoiding damage or corrosion to the surface of the corrugated pipe body 1 and extending its service life. In addition, the protective mechanism, through the arrangement of the first guide rod 12, the first guide groove 13, and the spring 14, makes the second protective sleeve 11 more stable when sliding inside the sliding groove 10 opened on the first protective sleeve 9, and also prevents the second protective sleeve 11 from rotating when sliding inside the sliding groove 10, thereby improving the stability of the device during use to a certain extent.

[0034] In some examples, during the actual installation and use of this device, especially during pipe connection, hoisting, or on-site operation, the first protective sleeve 9 and the second protective sleeve 11 can protect the bellows body 1, preventing scratches, dents, or even wall damage caused by tool collisions or hard object scraping. This can improve the service life of the bellows compensator to a certain extent and reduce the frequency of maintenance or replacement due to external damage, thus improving the stability and economy of the equipment operation. In addition, during use, the second protective sleeve 11 can slide inside the sliding groove 10 on the first protective sleeve 9, allowing the protective mechanism to extend and retract synchronously with the bellows body 1, meeting its displacement requirements. This not only does not restrict its normal operation but also ensures the displacement compensation effect of the pipeline system.

[0035] like Figure 4 As shown, this invention illustrates an easy-to-install corrugated pipe compensator in another embodiment. An annular fitting groove 15 is provided on the outer wall of each of the two sets of connecting pipes 2 on the side furthest from each other. An annular fitting plate 1501 matching the annular fitting groove 15 is fixedly installed on the outer pipe 5 near the corrugated pipe body 1. Several sets of second guide rods 16 are fixedly installed in a circumferential array inside each set of annular fitting grooves 15. A second guide groove 17 matching the second guide rod 16 is provided on the annular fitting plate 1501 at the corresponding position of each set of second guide rods 16. Each set of second guide rods 16 is slidably connected to the corresponding second guide groove 17. A sealing gasket is fixedly installed on the inner wall of each set of annular fitting grooves 15. A corrosion-resistant layer is coated on the inner wall of the inner sleeve 7. The corrosion-resistant layer is made of polytetrafluoroethylene.

[0036] In some examples, when this device is installed with the outer pipe 5, the operator can first insert the annular fitting plate 1501 fixedly installed on the outer pipe 5 into the annular fitting groove 15 opened on the connecting pipe 2. At the same time, the device can be rotated so that the second guide rod 16 fixedly installed in the annular fitting groove 15 slides and engages with the second guide groove 17 opened on the annular fitting plate 1501. This allows for precise alignment of the mounting holes 4 opened on the first flange 3 and the second flange 6, making it easier to use screws to connect and install the connecting pipe 2 and the outer pipe 5. In addition, through The sealing gasket fixedly installed on the inner wall of the annular fitting groove 15 enhances the sealing performance at the connection between the connecting pipe 2 and the outer pipe 5. Finally, in this device, the inner wall of the inner sleeve 7 is coated with a corrosion-resistant layer made of polytetrafluoroethylene (PTFE). PTFE has advantages such as resistance to strong acids, strong alkalis, and organic solvents, a wide temperature range, and a low coefficient of friction. This prevents the inner sleeve 7 from being corroded, oxidized, or worn to a certain extent, thereby further extending the service life of the device, ensuring the safe operation of the pipeline, and broadening the application range of the device.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bellows compensator that is easy to install, characterized in that, include: The corrugated pipe body (1) has connecting pipes (2) welded and installed at both sides of the corrugated pipe body (1). An outer pipe (5) is provided on the right side of the corrugated pipe body (1). A first flange (3) is fixedly installed at the edge of the two sets of connecting pipes (2) that are far apart from each other. A second flange (6) is fixedly installed at the left edge of the outer pipe (5). Several sets of mounting holes (4) are opened in a circular array on both sets of first flanges (3) and second flanges (6). The protective mechanism is located on the outside of the corrugated pipe body (1), and an inner sleeve (7) is welded and installed on the inner wall of one set of the connecting pipes (2), with the other end of the inner sleeve (7) extending into the interior of another set of the connecting pipes (2).

2. The bellows compensator for easy installation according to claim 1, characterized in that, The protective mechanism includes an annular fixing plate (8), a first protective sleeve (9), a sliding groove (10), and a second protective sleeve (11). Annular fixing plates (8) are fixedly installed on the outer walls of both sets of connecting pipes (2). A first protective sleeve (9) is fixedly installed on one set of annular fixing plates (8), and a sliding groove (10) is opened on the first protective sleeve (9). A second protective sleeve (11) matching the sliding groove (10) is fixedly installed on the other set of annular fixing plates (8) at the corresponding position of the sliding groove (10). The second protective sleeve (11) is slidably connected to the sliding groove (10).

3. The bellows compensator for easy installation according to claim 2, characterized in that, The protective mechanism further includes a first guide rod (12), a first guide groove (13), and a spring (14). Several sets of first guide rods (12) are fixedly installed in a circumferential array on the inner wall of the left side of the sliding groove (10). The second protective sleeve (11) is provided with a first guide groove (13) that matches the first guide rod (12) at the corresponding position of each set of first guide rods (12). Each set of first guide rods (12) is slidably connected to the first guide groove (13) at the corresponding position. Each set of first guide rods (12) is fitted with a spring (14). The left side of each set of springs (14) is fixedly connected to the inner wall of the left side of the sliding groove (10) at the corresponding position. The right side of each set of springs (14) is fixedly connected to the outer wall of the left side of the second protective sleeve (11).

4. The bellows compensator for easy installation according to claim 1, characterized in that, An annular fitting groove (15) is provided on the outer wall of the two sets of connecting pipes (2) on the side away from each other. An annular fitting plate (1501) matching the annular fitting groove (15) is fixedly installed on the side of the outer pipe (5) near the corrugated pipe body (1).

5. A bellows compensator for easy installation according to claim 4, characterized in that, Each set of annular fitting grooves (15) has several sets of second guide rods (16) fixedly installed in a circular array inside. The annular fitting plate (1501) has a second guide groove (17) that matches the second guide rod (16) at the corresponding position of each set of second guide rods (16). Each set of second guide rods (16) is slidably connected to the second guide groove (17) at the corresponding position.

6. The bellows compensator for easy installation according to claim 4, characterized in that, Each annular interlocking groove (15) has a sealing gasket fixedly installed on its inner wall.

7. The bellows compensator for easy installation according to claim 1, characterized in that, The inner wall of the inner sleeve (7) is coated with a corrosion-resistant layer.

8. A bellows compensator for easy installation according to claim 7, characterized in that, The corrosion-resistant layer is made of polytetrafluoroethylene.

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