Waterproof device for directly-buried heat supply pipeline inspection well

Abstract

The utility model relates to the technical field of heat supply pipeline inspection wells, in particular to a waterproof device for a directly-buried heat supply pipeline inspection well, which comprises a well wall, a casing pipe is pre-buried on the inner side of the well wall, and a pipeline main body is laid on the inner side of the casing pipe; a sealing structure is installed on the pipeline body and comprises a threaded ring, the threaded ring is movably installed on the inner side of the right end of the sleeve through threads, the surface of the threaded ring is fixedly connected with a first bolt through an outer ring, and a sealing ring is arranged between the outer ring and the first bolt in a clamped mode. Two sets of inner sleeve plates are arranged on the inner side of the sealing ring, and the left ends of the inner sleeve plates are fixedly connected with inner rings through second bolts. Through cooperation of the threaded ring, the outer ring, the inner sleeve plates and the inner rings, the inner edge and the outer edge of the sealing ring can be fixed to the sleeve and the pipeline body respectively, and the sealing performance between the sleeve and the pipeline body can be guaranteed; and the service life of the pipeline main body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heating pipeline inspection wells, and more specifically, it relates to a waterproof device for a directly buried heating pipeline inspection well. Background Technique

[0002] In the construction of heating pipe networks, the laying of directly buried heating pipelines has multiple advantages compared with traditional trench laying. In the current heating project construction, the waterproofing of directly buried heating pipeline inspection wells is mainly achieved by installing flexible waterproof sleeves. The insulation layer and outer protective layer of directly buried heating pipelines are relatively soft and have a certain plastic deformation under the influence of external forces. At the same time, during the heating process, since the medium in the pipeline is high-temperature hot water, with the change of the medium temperature, the pipeline is affected by thermal expansion and contraction and produces frequent axial expansion and contraction.

[0003] In this regard, Chinese Patent Application No.: CN202221086070.X discloses a waterproof device for a directly buried heating pipeline inspection well, which includes a pre-embedded sleeve embedded in the well wall. An insulation sleeve is sleeved outside the main body of the heating pipeline. A support for supporting the main body of the heating pipeline is arranged inside the pre-embedded sleeve. One end of the pre-embedded sleeve located outside the well wall is provided with a sealing sleeve. The sleeve wall of the sealing sleeve is of a corrugated structure. The end of the pre-embedded sleeve is also provided with a protective sleeve covering the outside of the sealing sleeve. The utility model realizes the sealing between the main body of the heating pipeline and the well wall through a sealing sleeve with a corrugated sleeve wall, so that the axial and radial expansion and contraction of the main body of the heating pipeline will not affect the sealing performance of the sealing sleeve, thus ensuring the waterproof effect; on the circumference of the pre-embedded sleeve of the utility model, a water retaining ring, a number of grooves and a number of protrusions are provided, which can make the connection between the pre-embedded sleeve and the well wall more stable and realize the waterproofing between the pre-embedded sleeve and the well wall.

[0004] This device can seal between the main body of the heating pipeline and the well wall through the setting of the sealing sleeve. However, when the main body of the heating pipeline moves axially, dust and other impurities will enter the inside of the protective sleeve. Over time, it will cause damage to the sealing sleeve, and further affect the service life of the main body of the heating pipeline.

[0005] Therefore, in order to solve the above technical problems, this application proposes a waterproof device for a directly buried heating pipeline inspection well. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a waterproof device for a directly buried heating pipeline inspection well.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A waterproof device for a directly buried heating pipeline inspection well, including: a well wall, a sleeve is pre-embedded inside the well wall, and a pipeline main body is laid inside the sleeve;

[0009] A sealing structure is installed on the pipeline main body. The sealing structure includes a threaded ring which is movably installed inside the right end of the sleeve through threads. A first bolt is fixedly connected to the surface of the threaded ring through an outer ring. A sealing ring is clamped between the outer ring and the first bolt. Two inner sleeve plates are arranged inside the sealing ring. The left end of the inner sleeve plate is fixedly connected to an inner ring through a second bolt. The two inner sleeve plates are fixedly connected through a third bolt.

[0010] Preferably, a limiting structure is installed inside the sleeve. The limiting structure includes a fixed sleeve which is fixedly installed on the inner wall of the sleeve. A sliding groove is formed on the inner wall of the fixed sleeve. A sliding block is fixedly installed on the outer wall of the pipeline main body. A movable sleeve is fixedly connected to the outer wall of the sliding block.

[0011] Preferably, the sealing structure is sleeved on the outer side of the pipeline main body.

[0012] Preferably, the sealing ring is located between the sleeve and the pipeline main body.

[0013] Preferably, the inner sleeve plate fits against the outer wall of the pipeline main body, and the inner sleeve plate and the inner ring are clamped on the inner side wall of the sealing ring.

[0014] Preferably, the movable sleeve is slidably installed inside the sliding groove.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, rotate the outer ring to fix the threaded ring and the first bolt at the outer edge of the sealing ring, rotate the second bolt to fix the inner sleeve plate and the inner ring at the inner edge of the sealing ring, then sleeved the two inner sleeve plates on the outer side of the pipeline main body, rotate the threaded ring, fix the threaded ring inside the right end of the sleeve through threads, and then rotate the third bolt to fix the two inner sleeve plates on the outer wall of the pipeline main body. The sealing ring is blocked between the sleeve and the pipeline main body, so that the right end of the area between the pipeline main body and the sleeve is sealed, which can effectively prevent water leakage when the pipeline main body axially expands and contracts, ensure no leakage, and can effectively block dust and other impurities from entering between the sleeve and the pipeline main body, ensure the sealing performance, and extend the service life of the pipeline main body;

[0017] 2. In the utility model, a limiting structure is arranged between the sleeve and the pipeline main body. When the pipeline main body axially expands and contracts, the sliding block can be driven to move relative to the fixed sleeve, and the movable sleeve slides inside the sliding groove, which can make the pipeline main body move in a straight line, avoid rotation, prevent the connection of the pipeline main body from loosening, and affect the installation stability of the pipeline main body. Description of the Drawings

[0018] The attached drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a front-sectional structural schematic diagram of the present utility model;

[0021] Figure 3 is an exploded schematic diagram of the front-sectional structure of the present utility model;

[0022] Figure 4 is a front-sectional structural schematic diagram of the sealing structure of the present utility model.

[0023] 1. Well wall; 11. Casing; 12. Pipeline body; 2. Sealing structure; 21. Threaded ring; 22. Outer ring; 23. First bolt; 24. Sealing ring; 25. Inner sleeve plate; 26. Second bolt; 27. Inner ring; 28. Third bolt; 3. Limiting structure; 31. Fixed sleeve; 32. Chute; 33. Slide block; 34. Movable sleeve. Detailed implementation manners

[0024] Please refer to Figures 1-4 , an embodiment of a waterproof device for a directly buried heat supply pipeline inspection well provided by the present utility model:

[0025] The well wall 1, casing 11 and pipeline body 12 used in this application are products that can be directly purchased on the market, and their principles and connection methods are all prior arts well-known to those skilled in the art, so they will not be elaborated here.

[0026] A waterproof device for a directly buried heat supply pipeline inspection well includes: a well wall 1, a casing 11 is embedded inside the well wall 1, and a pipeline body 12 is laid inside the casing 11;

[0027] A sealing structure 2 is installed on the pipeline main body 12. The sealing structure 2 includes a threaded ring 21 which is movably installed inside the right end of the sleeve 11 through threads. A first bolt 23 is fixedly connected to the surface of the threaded ring 21 through an outer ring 22. A sealing ring 24 is clamped between the outer ring 22 and the first bolt 23. Two inner sleeve plates 25 are arranged inside the sealing ring 24. The left end of the inner sleeve plate 25 is fixedly connected to an inner ring 27 through a second bolt 26. The two inner sleeve plates 25 are fixedly connected through a third bolt 28. Rotate the outer ring 22 to fix the threaded ring 21 and the first bolt 23 at the outer edge of the sealing ring 24. Rotate the second bolt 26 to fix the inner sleeve plate 25 and the inner ring 27 at the inner edge of the sealing ring 24. Then, put the two inner sleeve plates 25 on the outside of the pipeline main body 12. Rotate the threaded ring 21 to fix the threaded ring 21 inside the right end of the sleeve 11 through threads. Then, rotate the third bolt 28 to fix the two inner sleeve plates 25 on the outer wall of the pipeline main body 12. The sealing ring 24 is blocked between the sleeve 11 and the pipeline main body 12, so that the right end of the area between the pipeline main body 12 and the sleeve 11 is sealed, which can effectively prevent water leakage when the pipeline main body 12 expands and contracts axially, ensure no leakage, and can effectively block dust and other impurities from entering between the sleeve 11 and the pipeline main body 12, ensure the sealing performance, and extend the service life of the pipeline main body 12.

[0028] Further, a limiting structure 3 is installed inside the sleeve 11. The limiting structure 3 includes a fixed sleeve 31 which is fixedly installed on the inner wall of the sleeve 11. A chute 32 is opened on the inner wall of the fixed sleeve 31. A sliding block 33 is fixedly installed on the outer wall of the pipeline main body 12. A movable sleeve 34 is fixedly connected to the outer wall of the sliding block 33. A limiting structure 3 is arranged between the sleeve 11 and the pipeline main body 12. When the pipeline main body 12 expands and contracts axially, it can drive the sliding block 33 to move relative to the fixed sleeve 31, and the movable sleeve 34 slides in the chute 32, so that the pipeline main body 12 can keep moving in a straight line, avoid rotation, and prevent the connection of the pipeline main body 12 from loosening and affecting the installation stability of the pipeline main body 12.

[0029] Further, the sealing structure 2 is sleeved on the outside of the pipeline main body 12 and is located between the sleeve 11 and the pipeline main body 12, which can ensure the sealing performance between the sleeve 11 and the pipeline main body 12 and prevent water seepage from invading the pipeline main body 12.

[0030] Further, the sealing ring 24 is located between the sleeve 11 and the pipeline main body 12. The sealing ring 24 is blocked between the sleeve 11 and the pipeline main body 12, so that the right end of the area between the pipeline main body 12 and the sleeve 11 is sealed, which can effectively prevent water leakage when the pipeline main body 12 expands and contracts axially and ensure no leakage.

[0031] Further, the inner sleeve plate 25 fits against the outer wall of the pipe body 12. The inner sleeve plate 25 and the inner ring 27 cooperate to clamp the inner side wall of the sealing ring 24. Through the inner sleeve plate 25, the inner side wall of the sealing ring 24 can be connected to the outer wall of the pipe body 12.

[0032] Further, the movable sleeve 34 is slidably installed inside the sliding groove 32. When the pipe body 12 axially expands and contracts, it can drive the slider 33 to move relative to the fixed sleeve 31. The movable sleeve 34 slides inside the sliding groove 32, which can keep the pipe body 12 moving in a straight line, prevent rotation, and avoid loosening of the connection of the pipe body 12, thus affecting the installation stability of the pipe body 12.

[0033] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the art can smoothly implement the present invention according to the illustrations in the specification and the above description. However, any equivalent changes, made by those skilled in the art within the scope of the technical solution of the present invention by making some modifications, decorations and evolutions using the technical content disclosed above, are equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A waterproof device for a directly buried heat supply pipeline inspection well, comprising: Wellbore wall (1), a casing (11) is embedded inside the wellbore wall (1), and a pipeline main body (12) is laid inside the casing (11); It is characterized in that: A sealing structure (2) is installed on the pipeline main body (12). The sealing structure (2) includes a threaded ring (21). The threaded ring (21) is movably installed inside the right end of the casing (11) through threads. A first bolt (23) is fixedly connected to the surface of the threaded ring (21) through an outer ring (22). A sealing ring (24) is clamped between the outer ring (22) and the first bolt (23). Two sets of inner sleeve plates (25) are arranged inside the sealing ring (24). The left end of the inner sleeve plate (25) is fixedly connected to an inner ring (27) through a second bolt (26). The two sets of inner sleeve plates (25) are fixedly connected through a third bolt (28).

2. The waterproof device for the directly buried heat supply pipeline inspection well according to claim 1, wherein: A limiting structure (3) is installed inside the casing (11). The limiting structure (3) includes a fixed sleeve (31). The fixed sleeve (31) is fixedly installed on the inner wall of the casing (11). A chute (32) is opened on the inner wall of the fixed sleeve (31). A slider (33) is fixedly installed on the outer wall of the pipeline main body (12). A movable sleeve (34) is fixedly connected to the outer wall of the slider (33).

3. A waterproof device for a directly buried heat supply pipeline inspection well according to claim 1, characterized in that: The sealing structure (2) is sleeved outside the pipeline main body (12).

4. The waterproof device for the directly buried heating pipeline inspection well according to claim 1, characterized in that: The sealing ring (24) is located between the casing (11) and the pipeline main body (12).

5. A waterproof device for a directly buried heat supply pipeline inspection well according to claim 1, characterized in that: The inner sleeve plate (25) fits against the outer wall of the pipeline main body (12). The inner sleeve plate (25) and the inner ring (27) cooperate to clamp on the inner side wall of the sealing ring (24).

6. The waterproof device for the directly buried heat supply pipeline inspection well according to claim 2, characterized in that: The movable sleeve (34) is slidably installed inside the chute (32).

Images