A full-buried anti-corrosion expansion joint with corrugated structure

Abstract

The utility model provides a kind of full-buried anticorrosive expansion joint with corrugated structure, it is related to expansion joint field.The utility model includes expansion joint component, external protection component is installed in the external of expansion joint component;And limit component can be detachably installed in the external of expansion joint component;The expansion joint component includes: pipeline main body;And fixed in the corrugated section of pipeline main body;The external protection component includes: the protective sleeve of the external of corrugated section is sleeved;Conical sleeve is fixed in the one side of protective sleeve;And the moving ring is fixed in the end of conical sleeve.The utility model is by setting external protection component in the external of corrugated section, protective sleeve and corrugated section axial coincidence, internal keep certain space, can be used for the normal deformation of corrugated section, and protective sleeve can protect corrugated section, can avoid soil extrusion corrugated section leading to corrugated section deformation influence normal use of corrugated section.

Description

Technical Field

[0001] This utility model relates to the field of expansion joints, specifically a fully embedded anti-corrosion expansion joint with a corrugated structure. Background Technology

[0002] An expansion joint is a flexible compensating device used to absorb thermal expansion and contraction, axial displacement, lateral displacement, or angular displacement of pipelines, containers, or equipment caused by factors such as temperature changes, mechanical vibration, pressure fluctuations, or installation errors. It reduces stress concentration through its own elastic deformation, protecting the safe operation of equipment and piping systems.

[0003] For example, the existing publicly available technical solution (CN216555922U) discloses a fully embedded anti-corrosion expansion joint with a corrugated structure, including a pipe connection port. There are two pipe connection ports, which are arranged opposite to each other. Each of the two pipe connection ports is provided with four connecting bases, and the connecting bases are welded to the pipe connection ports. Seat clips are provided on the upper and lower parts of the connecting bases. A ball groove is provided inside the connecting base. A limiting ball clip is provided on the connecting base. Four screw holes are provided on both the connecting base and the limiting ball clip.

[0004] The aforementioned fully buried anti-corrosion expansion joint has a corrugated expansion pipe installed in the middle of the pipeline. However, the corrugated expansion pipe does not have a corresponding protective structure on its exterior. When buried underground, the soil and other materials can easily squeeze the area of ​​the corrugated expansion pipe, causing the corrugated expansion pipe to deform and affecting the normal use of the expansion joint. Utility Model Content

[0005] The purpose of this utility model is to provide a fully embedded anti-corrosion expansion joint with a corrugated structure to solve the problems mentioned in the background art and overcome its technical defects.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a fully embedded anti-corrosion expansion joint with a corrugated structure, comprising: an expansion joint assembly, an external protective assembly installed outside the expansion joint assembly; and a limiting assembly detachably installed outside the expansion joint assembly;

[0007] The expansion joint assembly includes: a pipe body; and a corrugated joint fixed inside the pipe body;

[0008] The external protection component includes: a protective sleeve fitted over the corrugated joint; a conical sleeve fixed to one side of the protective sleeve; and a movable ring fixed to the end of the conical sleeve.

[0009] As a further improvement of this utility model, the expansion joint assembly also includes a mounting ring fixedly welded to the outside of the pipe body, the mounting ring being located on both sides of the corrugated joint.

[0010] As a further improvement of this utility model: a flexible sealing element is provided between the protective sleeve and the mounting ring, and the flexible sealing element is fixedly connected to the protective sleeve and the mounting ring.

[0011] As a further improvement of this utility model: a sealing ring is provided between the moving ring and the pipe body, and the sealing ring is attached to the inner wall of the moving ring, and the sealing ring is movably connected to the pipe body.

[0012] As a further improvement of this utility model, the bottom of the protective sleeve is provided with multiple equally spaced and evenly distributed drainage holes.

[0013] As a further embodiment of this utility model, the expansion joint assembly further includes: pipe flanges welded to both ends of the pipe body; and an inner pipe welded inside the pipe body.

[0014] As a further embodiment of this utility model: the water inlet end of the inner tube is welded and fixed to the main body of the pipe, and the water outlet end of the inner tube is a free end, with the moving ring located outside the free end of the inner tube.

[0015] As a further embodiment of this utility model, the limiting component includes: a mounting base welded to the pipe flange; a limiting screw movably connected inside the mounting base; and a limiting bolt threaded to the outside of the limiting screw.

[0016] Compared with the prior art, the beneficial effects of this utility model include:

[0017] 1. This utility model provides an external protective component on the outside of the corrugated joint. The protective sleeve is axially aligned with the corrugated joint and has a certain amount of space inside to allow for normal deformation of the corrugated joint. The protective sleeve can also protect the corrugated joint and prevent soil from squeezing it, which could cause deformation and affect its normal use.

[0018] 2. This utility model can temporarily limit the main body of the pipeline by setting a limiting component, which can be removed later without affecting the normal use of the main body of the pipeline. Attached Figure Description

[0019] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0020] Figure 1 The schematic diagram shows an overall structural schematic diagram according to one embodiment of the present invention;

[0021] Figure 2The schematic diagram shows a half-sectional view according to one embodiment of the present invention;

[0022] Figure 3 The schematic diagram shows a bottom view of a protective sleeve according to one embodiment of the present invention;

[0023] Figure 4 The diagram schematically shows an expansion joint assembly according to one embodiment of the present invention.

[0024] The following are the labeling elements in the diagram: 1. Expansion joint assembly; 101. Pipe body; 102. Corrugated joint; 103. Inner pipe; 104. Mounting ring; 105. Pipe flange; 2. Limiting assembly; 201. Mounting base; 202. Limiting screw; 203. Limiting bolt; 3. External protection assembly; 301. Protective sleeve; 302. Conical sleeve; 303. Moving ring; 304. Sealing ring; 305. Flexible seal; 306. Drain hole. Detailed Implementation

[0025] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0026] An embodiment of the present invention is shown in conjunction with the accompanying drawings.

[0027] Example 1:

[0028] Please see Figures 1-3 This is the first embodiment of the present utility model.

[0029] This embodiment provides a fully embedded anti-corrosion expansion joint with a corrugated structure, including an expansion joint assembly 1, an external protection assembly 3 installed on the outside of the expansion joint assembly 1, and a limiting assembly 2 detachably installed on the outside of the expansion joint assembly 1;

[0030] The expansion joint assembly 1 includes: a pipe body 101; and a corrugated joint 102 fixed inside the pipe body 101;

[0031] The external protection component 3 includes: a protective sleeve 301 fitted over the corrugated joint 102; a conical sleeve 302 fixed to one side of the protective sleeve 301; and a movable ring 303 fixed to the end of the conical sleeve 302.

[0032] Specifically, the expansion joint assembly 1 also includes a mounting ring 104 fixedly welded to the outside of the pipe body 101, with the mounting ring 104 located on both sides of the bellows 102.

[0033] Furthermore, the inner diameter of the protective sleeve 301 is larger than the outer diameter of the corrugated joint 102, and the gap between the protective sleeve 301 and the corrugated joint 102 can meet the normal deformation activities of the corrugated joint 102.

[0034] Specifically, a flexible seal 305 is provided between the protective sleeve 301 and the mounting ring 104, and the flexible seal 305 is fixedly connected to the protective sleeve 301 and the mounting ring 104.

[0035] Furthermore, the flexible seal 305 can be made of existing flexible filler, which is filled between the protective sleeve 301 and the mounting ring 104 without affecting the movement of the bellows 102 inside the protective sleeve 301. The flexible filler is filled with flexible material (such as graphite, asbestos, etc.) and compressed to seal. The flexible seal 305 is compressed and fixed before leaving the factory, so that the protective sleeve 301 and the mounting ring 104 are connected through the flexible seal 305.

[0036] Specifically, a sealing ring 304 is provided between the moving ring 303 and the pipe body 101, and the sealing ring 304 is attached to the inner wall of the moving ring 303. The sealing ring 304 is movably connected to the pipe body 101, and the sealing ring 304 is made of corrosion-resistant rubber.

[0037] Furthermore, the sealing ring 304 provides a certain sealing effect between the moving ring 303 and the pipe body 101, preventing large particles of sand from entering the interior of the protective sleeve 301 through the gap between the moving ring 303 and the pipe body 101. At the same time, the sealing ring 304 is movably connected to the pipe body 101, which can satisfy the effect of the pipe body 101 sliding inside the moving ring 303.

[0038] Specifically, the bottom of the protective cover 301 is provided with multiple equally spaced and evenly distributed drainage holes 306.

[0039] Furthermore, water that seeps into the protective sleeve 301 can be discharged out through the drain hole 306, which has a built-in filter screen to prevent soil from entering.

[0040] In this embodiment, by setting an external protective component 3 outside the corrugated section 102, the protective sleeve 301 is axially aligned with the corrugated section 102, and a certain space is reserved inside to allow for the normal deformation of the corrugated section 102. Furthermore, the protective sleeve 301 can protect the corrugated section 102 and prevent soil from squeezing the corrugated section 102, which would cause the corrugated section 102 to deform and affect its normal use.

[0041] Example 2:

[0042] Please see Figures 3-4 This is the second embodiment of the present invention.

[0043] This embodiment provides a fully embedded anti-corrosion expansion joint with a corrugated structure, including...

[0044] Specifically, the expansion joint assembly 1 also includes: pipe flanges 105 welded to both ends of the pipe body 101; and an inner pipe 103 welded inside the pipe body 101.

[0045] Furthermore, one end of the inner tube 103 is fixedly welded, while the other end is in a free state to allow for liquid flow.

[0046] Specifically, the inlet end of the inner tube 103 is welded and fixed to the main body of the pipe 101, and the outlet end of the inner tube 103 is a free end, with the moving ring 303 located outside the free end of the inner tube 103.

[0047] Furthermore, the welding end of the inner tube 103 is aligned with the welding end of the protective sleeve 301, and the protective sleeve 301 is welded to the outside of the mounting ring 104, which supports the protective sleeve 301.

[0048] Specifically, the limiting component 2 includes: a mounting base 201 welded to the pipe flange 105; a limiting screw 202 movably connected inside the mounting base 201; and a limiting bolt 203 threadedly connected to the outside of the limiting screw 202.

[0049] Furthermore, by rotating the limiting bolt 203 on the limiting screw 202, the position of the limiting bolt 203 can be adjusted, thereby limiting the main body of the pipeline 101. After installation, the limiting screw 202 can be removed. The mounting base 201 is made of corrosion-resistant material. If the limiting screw 202 is not removed, the limiting screw 202 needs to be given additional anti-corrosion protection.

[0050] In this embodiment, the limiting component 2 can temporarily limit the pipe body 101, and can be removed later without affecting the normal use of the pipe body 101.

[0051] Working principle: The pipe flange 105 on the pipe body 101 is used to connect other pipes. The corrugated section 102 can elastically deform inside the protective sleeve 301 according to the actual work. When installed, the protective sleeve 301 is fitted over the mounting ring 104. The protective sleeve 301 and the mounting ring 104 are filled by the flexible seal 305. The movable ring 303 at the other end can slide on the pipe body 101. The mounting ring 104 near the movable ring 303 restricts the movement range of the movable ring 303 to prevent the corrugated section 102 from being exposed. The overall length of the external protective component 3 is greater than the maximum elongation of the corrugated section 102. When buried in the ground, since the protective sleeve 301 is located outside the corrugated section 102, the corrugated section 102 will not come into contact with the soil, thus protecting the corrugated section 102.

[0052] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A fully embedded anti-corrosion expansion joint with a corrugated structure, characterized in that, It includes an expansion joint assembly (1), an external protection assembly (3) installed on the outside of the expansion joint assembly (1); and a limiting assembly (2) detachably installed on the outside of the expansion joint assembly (1). The expansion joint assembly (1) includes: a pipe body (101); and a corrugated joint (102) fixed inside the pipe body (101). The external protection component (3) includes: a protective sleeve (301) fitted over the corrugated section (102); a conical sleeve (302) fixed to one side of the protective sleeve (301); and a movable ring (303) fixed to the end of the conical sleeve (302).

2. The fully embedded anti-corrosion expansion joint with a corrugated structure according to claim 1, characterized in that, The expansion joint assembly (1) also includes a mounting ring (104) fixedly welded to the outside of the pipe body (101), the mounting ring (104) being located on both sides of the corrugated joint (102).

3. The fully embedded anti-corrosion expansion joint with a corrugated structure according to claim 2, characterized in that, A flexible seal (305) is provided between the protective sleeve (301) and the mounting ring (104), and the flexible seal (305) is fixedly connected to the protective sleeve (301) and the mounting ring (104).

4. The fully embedded anti-corrosion expansion joint with a corrugated structure according to claim 3, characterized in that, A sealing ring (304) is provided between the movable ring (303) and the pipe body (101), and the sealing ring (304) is attached to the inner wall of the movable ring (303). The sealing ring (304) is movably connected to the pipe body (101).

5. The fully embedded anti-corrosion expansion joint with a corrugated structure according to claim 4, characterized in that, The bottom of the protective sleeve (301) is also provided with a plurality of equally spaced drainage holes (306).

6. The fully embedded anti-corrosion expansion joint with a corrugated structure according to claim 5, characterized in that, The expansion joint assembly (1) further includes: pipe flanges (105) welded to both ends of the pipe body (101); and an inner pipe (103) welded inside the pipe body (101).

7. The fully embedded anti-corrosion expansion joint with a corrugated structure according to claim 6, characterized in that, The water inlet end of the inner tube (103) is welded and fixed to the pipe body (101), and the water outlet end of the inner tube (103) is a free end. The moving ring (303) is located outside the free end of the inner tube (103).

8. The fully embedded anti-corrosion expansion joint with a corrugated structure according to claim 7, characterized in that, The limiting component (2) includes: a mounting base (201) welded to the pipe flange (105); a limiting screw (202) movably connected inside the mounting base (201); and a limiting bolt (203) threaded to the outside of the limiting screw (202).

Images