Decoupler for pipeline

Abstract

The utility model relates to the technical field of decouplers, and discloses a pipeline decoupler which comprises a first stand column and a second stand column, a first fixing ring is fixedly installed at the lower end of the first stand column, a second fixing ring is fixedly installed at the upper end of the second stand column, and a plurality of sleeves are movably connected between the first stand column and the second stand column. A connecting ring is movably connected between every two adjacent sleeves, a fixing pipe is fixedly installed on the outer sides of the sleeves, two sealing gaskets are movably installed in the fixing pipe, a protection pipe is fixedly installed in the fixing pipe through the two sealing gaskets, and an access cover is movably installed on the outer side of the first stand column. The multiple sleeves are rotationally connected between the first stand column and the second stand column, the fixing pipes are arranged on the outer sides of the sleeves, the two sealing gaskets capable of being extruded and expanded are arranged on the inner sides of the fixing pipes, so that prefabricated protection pipes can be rapidly installed, cables in different laying directions can be sleeved and protected conveniently, the overall structure is high in adjustability, operation is convenient and fast, and the practicability is high. And the service life of the whole device can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of decoupler technology, and in particular to a decoupler for pipelines. Background Technology

[0002] Solid-state decouplers are key equipment for the protection of buried pipelines. They can effectively eliminate stray currents and prevent pipelines from being damaged by current corrosion. Through the internal drainage module, stray currents are guided to the ground, and they can also cope with AC interference.

[0003] Most solid-state decouplers are often cumbersome to install, requiring professional technicians to spend a lot of time and effort on debugging and fixing. In other words, traditional solid-state decouplers offer relatively simple protection measures for cables. When it is necessary to protect cables in different laying directions, existing decouplers are generally installed by directly burying the cables in the soil, which cannot easily provide effective protection for the cables. This makes the cables in the complex underground environment highly susceptible to threats such as moisture, acid and alkali corrosion, and mechanical damage, thereby affecting the normal operation of the cables and reducing the stability and reliability of the entire pipeline system. Utility Model Content

[0004] The purpose of this invention is to provide a decoupler for pipelines that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A pipeline decoupler includes a first column and a second column. A first fixing ring is fixedly installed at the lower end of the first column, and a second fixing ring is fixedly installed at the upper end of the second column. Multiple sleeves are movably connected between the first column and the second column, and a connecting ring is movably connected between two adjacent sleeves. A fixing pipe is fixedly installed on the outside of each sleeve, and two sealing gaskets are movably installed inside the fixing pipe. A protective pipe is fixedly installed inside the fixing pipe through the two sealing gaskets. An inspection cover is movably installed on the outside of the first column, and a protective box is fixedly installed at the upper end of the first column. A drainage module is fixedly installed inside the protective box.

[0007] As a further preferred embodiment of this utility model, a sealing ring is fitted on the outer side of the first fixing ring, and a sealing ring is also fitted on the outer side of the second fixing ring. The first fixing ring is set at the lower end of the first column, and the second fixing ring is set at the upper end of the second column, which can provide a foundation for the connection of the sleeve. The sealing rings provide a sealing function at the connection between the first fixing ring, the second fixing ring and the corresponding sleeve, while also providing damping for the rotation of the sleeve, which facilitates the adjustment of the installation direction of the sleeve driving the fixing tube.

[0008] As a further preferred embodiment of this utility model, two rotating grooves are provided on the inner side of the fixed tube.

[0009] As a further preferred embodiment of this utility model, the fixing tube is arranged obliquely, and a slot is opened on the inner side of the fixing tube. Two positioning grooves are opened on the inner side of the slot. A first locking screw is threadedly connected to the positioning groove. A second locking screw is threadedly connected to the sleeve located below the fixing tube, and one end of the second locking screw passes through the sleeve and extends into the rotating groove.

[0010] As a further preferred embodiment of this utility model, a pressure-bearing bladder is fixedly installed on one side of the sealing gasket. The sealing gasket has a cavity and communicates with the inner cavity of the pressure-bearing bladder. The sealing gasket is inserted into the slot on one side of the fixed tube, and the pressure-bearing bladder is inserted into the corresponding positioning groove on one side. After one end of the protective tube is inserted between the two sealing gaskets in the fixed tube, pressure can be applied to the pressure-bearing bladder through the first locking screw, thereby increasing the air pressure in the inner cavity of the sealing gasket and causing it to expand, thus clamping and fixing the protective tube and sealing the connection between the fixed tube and the protective tube.

[0011] As a further preferred embodiment of this utility model, two third fixing rings are fixedly installed on the outer side of the connecting ring, and sealing rings are also clamped on the outer side of the two third fixing rings. The third fixing rings are rotatably installed in the rotating grooves on the inner side of the corresponding sleeves. One of the rotating grooves on the inner side of the two sleeves is also rotatably connected to the first fixing ring and the second fixing ring, respectively. The arrangement of the two sets of connecting rings and the third fixing rings can realize the mutual rotational connection of the three sleeves, and cooperate with the first fixing ring and the second fixing ring to realize the adjustment of the installation direction of the protective tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this utility model, multiple sleeves are rotatably connected between the first column and the second column, and a fixed tube is set on the outside of the sleeve. Two compressible and expandable sealing gaskets are set on the inside of the fixed tube, which can quickly install the prefabricated protective tube. This makes it easy to protect cables in different laying directions. The overall structure is highly adjustable and easy to operate, which can improve the service life of the entire device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the first column, the second column, and the sleeve of this utility model;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the sleeve structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the sealing gasket of this utility model.

[0019] In the diagram: 1. First column; 2. First fixing ring; 3. Second column; 4. Sealing ring; 5. Second fixing ring; 6. Sleeve; 7. Connecting ring; 8. Fixing tube; 9. Sealing gasket; 10. Protective tube; 11. Inspection cover; 12. Protective box; 13. Drainage module; 14. Rotary groove; 15. Slot; 16. Positioning groove; 17. First locking screw; 18. Second locking screw; 19. Pressure bladder; 20. Third fixing ring. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-5 As shown, the present invention provides a pipeline decoupling device, comprising a first column 1 and a second column 3. A first fixing ring 2 is fixedly installed at the lower end of the first column 1, and a second fixing ring 5 is fixedly installed at the upper end of the second column 3. Multiple sleeves 6 are movably connected between the first column 1 and the second column 3, and a connecting ring 7 is movably connected between two adjacent sleeves 6. A fixing pipe 8 is fixedly installed on the outside of the sleeve 6, and two sealing gaskets 9 are movably installed inside the fixing pipe 8. A protective pipe 10 is fixedly installed inside the fixing pipe 8 through the two sealing gaskets 9. An inspection cover 11 is movably installed on the outside of the first column 1, and a protective box 12 is fixedly installed at the upper end of the first column 1. A drainage module 13 is fixedly installed inside the protective box 12.

[0022] like Figures 2-4 As shown, a sealing ring 4 is fitted on the outer side of the first fixing ring 2, and a sealing ring 4 is also fitted on the outer side of the second fixing ring 5. The first fixing ring 2 is set at the lower end of the first column 1, and the second fixing ring 5 is set at the upper end of the second column 3, which can provide a foundation for the connection of the sleeve 6. The sealing ring 4 provides a sealing function at the connection between the first fixing ring 2, the second fixing ring 5 and the corresponding sleeve 6, while also providing damping for the rotation of the sleeve 6, which facilitates the adjustment of the installation direction of the fixed tube 8 driven by the sleeve 6. Two rotating grooves 14 are opened on the inner side of the fixed tube 8.

[0023] like Figures 4-5As shown, the fixing tube 8 is obliquely arranged, and a slot 15 is opened on the inner side of the fixing tube 8. Two positioning grooves 16 are opened on the inner side of the slot 15. A first locking screw 17 is threadedly connected to the positioning groove 16. A second locking screw 18 is threadedly connected to the sleeve 6 located below the fixing tube 8, and one end of the second locking screw 18 extends through the sleeve 6 into the rotating groove 14. A pressure bladder 19 is fixedly installed on one side of the sealing gasket 9. The sealing gasket 9 has a cavity and communicates with the inner cavity of the pressure bladder 19. The sealing gasket 9 is inserted into the slot 15 on one side of the fixing tube 8, and the pressure bladder 19 is inserted into the corresponding positioning groove 16 on one side. After one end of the protective tube 10 is inserted between the two sealing gaskets 9 in the fixing tube 8, the pressure bladder 19 can be pressurized by the first locking screw 17, thereby increasing the air pressure in the inner cavity of the sealing gasket 9 and expanding it to clamp and fix the protective tube 10 and seal the connection between the fixing tube 8 and the protective tube 10.

[0024] like Figures 2-3 As shown, two third fixing rings 20 are fixedly installed on the outside of the connecting ring 7. Sealing rings 4 are also clamped on the outside of the two third fixing rings 20. The third fixing rings 20 are rotatably installed in the rotating grooves 14 on the inner side of the corresponding sleeves 6. One of the rotating grooves 14 on the inner side of the two sleeves 6 is also rotatably connected to the first fixing ring 2 and the second fixing ring 5 respectively. The arrangement of the two sets of connecting rings 7 and third fixing rings 20 can realize the mutual rotatable connection of the three sleeves 6, and cooperate with the first fixing ring 2 and the second fixing ring 5 to realize the adjustment of the installation direction of the protective tube 10.

[0025] It should be noted that this utility model is a decoupler for pipelines. During cable laying, the two terminals of the drainage module 13 are first connected to the test module inside the first column 1 via cables. Then, according to on-site installation requirements, the protective pipe 10 can be pre-bent and its length controlled. The cable is pre-inserted into the protective pipe 10, and one end of the cable is extended through the corresponding fixing pipe 8 into the sleeve 6. Then, one end of the cable can be pulled into the first column 1. At this time, the inspection cover 11 can be opened, and one end of the cable can be connected to the test module inside the first column 1. Subsequently, one end of the protective pipe 10 can be inserted between the two sealing gaskets 9 inside the fixing pipe 8. Then, the first locking screws 17 on both sides of the fixing pipe 8 are rotated respectively, causing the two first locking screws 17 to rotate towards the corresponding pressure bladder 19. Thus, the pressure bladder 19, under the pressure of the positioning groove 16, forces the internal gas into the sealing gasket 9. The expansion of the sealing gasket 9 allows the protective tube 10 placed inside the fixed tube 8 to be fixed and sealed. The remaining cables can then be installed in the same manner. The sleeve 6 can be rotated to rotate on the third fixed ring 20 or the first fixed ring 2 and the second fixed ring 5 through the inner rotating groove 14, thereby adjusting the installation direction of the protective tube 10. After the installation direction of the protective tube 10 is adjusted, the second locking screw 18 inside the sleeve 6 can be rotated, causing one end of the second locking screw 18 to press against the outside of the corresponding sealing ring 4, thus limiting the sleeve 6. Then, the other ends of the multiple cables can be connected to the pipe, ground wire, or other carriers, and the lower end of the second column 3 can be fixed to the concrete base near the pipe. Finally, the foundation pit only needs to be backfilled with soil, and the second column 3, sleeve 6, protective tube 10, and the lower part of the first column 1 can be buried.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A decoupler for pipelines, characterized in that: The first column (1) and the second column (3) are included. The first column (1) is fixedly installed with a first fixing ring (2) at its lower end and the second column (3) is fixedly installed with a second fixing ring (5) at its upper end. Multiple sleeves (6) are movably connected between the first column (1) and the second column (3), and a connecting ring (7) is movably connected between two adjacent sleeves (6). A fixing pipe (8) is fixedly installed on the outside of the sleeve (6). Two sealing gaskets (9) are movably installed inside the fixing pipe (8), and a protective pipe (10) is fixedly installed inside the fixing pipe (8) through the two sealing gaskets (9). An inspection cover (11) is movably installed on the outside of the first column (1). A protective box (12) is fixedly installed on the upper end of the first column (1), and a drainage module (13) is fixedly installed inside the protective box (12).

2. A decoupler for pipelines according to claim 1, characterized in that: A sealing ring (4) is fitted on the outside of the first fixing ring (2), and a sealing ring (4) is also fitted on the outside of the second fixing ring (5).

3. A decoupler for pipelines according to claim 1, characterized in that: Two slots (14) are provided on the inner side of the fixed tube (8).

4. A decoupler for pipelines according to claim 3, characterized in that: The fixing tube (8) is set at an angle, and a slot (15) is opened on the inner side of the fixing tube (8). Two positioning grooves (16) are opened on the inner side of the slot (15). A first locking screw (17) is threaded in the positioning groove (16). A second locking screw (18) is threaded in the sleeve (6) located below the fixing tube (8), and one end of the second locking screw (18) extends through the sleeve (6) into the rotating groove (14).

5. A decoupler for pipelines according to claim 4, characterized in that: A pressure bladder (19) is fixedly installed on one side of the sealing gasket (9). The sealing gasket (9) has a cavity and communicates with the cavity inside the pressure bladder (19). The sealing gasket (9) is inserted into the slot (15) on one side of the fixed tube (8), and the pressure bladder (19) is inserted into the corresponding positioning groove (16) on one side.

6. A decoupler for pipelines according to claim 5, characterized in that: Two third fixing rings (20) are fixedly installed on the outside of the connecting ring (7). Sealing rings (4) are also clamped on the outside of the two third fixing rings (20). The third fixing rings (20) are rotatably installed in the rotating grooves (14) on the inner side of the corresponding sleeves (6). One of the rotating grooves (14) on the inner side of the two sleeves (6) is also rotatably connected to the first fixing ring (2) and the second fixing ring (5) respectively.

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