Rigid waterproof pipe sleeve structure for urban underground railway

Abstract

The utility model provides a rigid waterproof pipe sleeve structure for an urban underground railway, and relates to the field of waterproof pipe sleeves. The rigid waterproof pipe sleeve structure for the urban underground railway comprises an outer pipe sleeve, an equipment pipe body is arranged in the outer pipe sleeve, a water stop steel plate is fixedly connected to the outer side of the outer pipe sleeve, a positioning plate is fixedly connected to the inner side of the outer pipe sleeve, an inner pipe sleeve is fixedly connected to the inner side of the positioning plate, and the equipment pipe body is located in the inner pipe sleeve. The outer side of the outer pipe sleeve is fixedly connected with a wall plate, and the two sides of the positioning plate are each provided with a first waterproof layer. According to the waterproof pipe sleeve, the outer side of the equipment pipe body can be protected when the waterproof pipe sleeve is used, the equipment pipe body is prevented from being corroded by the external environment, the waterproof performance of the pipe sleeve can be effectively improved through multiple waterproof structures, underground water can be prevented from permeating, and the equipment pipe body is protected against damage; the problems that after a pipe sleeve structure is used for a long time, the sealing performance is poor, and underground water easily permeates are solved.

Description

Technical Field

[0001] This utility model relates to the field of waterproof pipe sleeves, specifically a rigid waterproof pipe sleeve structure for urban underground railways. Background Technology

[0002] In the construction of urban underground railways, cables, water pipes, and other pipelines often need to cross different areas and structures. To protect these pipelines from groundwater, chemicals in the soil, and mechanical damage, waterproof pipe sleeve structures are required.

[0003] According to the existing technology, some rigid waterproof sleeves generally adopt a structure in which a sleeve and a steel pipe are fitted together, and a rigid waterproof material is filled between the sleeve and the steel pipe. After long-term use, the sealing performance of some sleeve structures is poor, which can easily lead to groundwater seepage. In addition, some rigid waterproof sleeves have cracks between the wall and the sleeve gradually increasing during long-term use, which reduces the sealing effect.

[0004] Therefore, those skilled in the art have provided a rigid waterproof pipe sleeve structure for urban underground railways to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a rigid waterproof pipe sleeve structure for urban underground railways, which solves the problems of poor sealing performance after long-term use of the pipe sleeve structure, easy infiltration of groundwater, and reduced sealing effect due to the gradual increase of cracks between the wall and the pipe sleeve in some rigid waterproof sleeves during long-term use.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A rigid waterproof pipe sleeve structure for urban underground railways includes an outer pipe sleeve, an equipment pipe body inside the outer pipe sleeve, a water-stop steel plate fixedly connected to the outer side of the outer pipe sleeve, a positioning plate fixedly connected to the inner side of the outer pipe sleeve, an inner pipe sleeve fixedly connected to the inner side of the positioning plate, the equipment pipe body located inside the inner pipe sleeve, a wall panel fixedly connected to the outer side of the outer pipe sleeve, a first waterproof layer on both sides of the positioning plate, a second waterproof layer fixedly connected to the end of the first waterproof layer away from the positioning plate, and a sealing layer fixedly connected to the end of the second waterproof layer away from the first waterproof layer.

[0009] The above technical solution can protect the outside of the equipment pipe body during use, preventing external environmental corrosion. Furthermore, the device, through its multiple waterproof structures, effectively improves the waterproof performance of the pipe sleeve, preventing groundwater infiltration and protecting the equipment pipe body from damage. This solves the problem of poor sealing performance and easy groundwater infiltration after long-term use of the pipe sleeve structure.

[0010] Furthermore, the water-stop steel plate is fixedly connected to the outside of the outer sleeve by welding, the positioning plate is fixedly connected to the inside of the outer sleeve by welding, and the inner sleeve is made of high-strength polyethylene material;

[0011] Through the above technical solution, the positioning plate can position the equipment tube body at the center of the outer sleeve, and the inner sleeve can protect the equipment tube body from being corroded by the external environment.

[0012] Furthermore, there are two wall panels, which are located at both ends of the outer sleeve. A first sealing layer is fixedly connected to the side of each wall panel, and a second sealing layer is fixedly connected to the side of each wall panel.

[0013] The above technical solution not only provides waterproofing in the center of the outer sleeve, but also ensures that the two ends of the outer sleeve that contact the wall are firmly fixed. In addition, multiple waterproofing mechanisms are added at the fixed position, which solves the problem that some rigid waterproof sleeves experience a gradual increase in the cracks between the wall and the sleeve during long-term use, resulting in a decrease in the sealing effect.

[0014] Furthermore, the first sealing layer is annular and located outside the outer sleeve, the second sealing layer is annular and located outside the first sealing layer, the material of the first sealing layer is polymer cement mortar, and the material of the second sealing layer is water-swellable waterstop strip;

[0015] Through the above technical solution, the first sealing layer and the second sealing layer can enhance the waterproofing of the outer pipe sleeve and prevent gaps from forming at the connection between the wall and the outer pipe sleeve.

[0016] Furthermore, the first waterproof layer, the second waterproof layer, and the sealing layer are all located between the inner sleeve and the outer sleeve. The first waterproof layer is made of fiber-reinforced concrete, the second waterproof layer is made of polymer cement mortar, and the sealing layer is made of water-swellable waterstop strip.

[0017] The above technical solution, through multiple waterproof structures, effectively improves the waterproof performance of the pipe sleeve, preventing groundwater infiltration and protecting the equipment pipe body from damage.

[0018] Furthermore, a sealing plate is fixedly connected inside the outer sleeve, and there are two sealing plates, which are located at both ends of the outer sleeve respectively;

[0019] Through the above technical solution, the sealing plate can protect and limit the multi-layer waterproof mechanism inside the outer casing.

[0020] Furthermore, the sealing plate is located between the outer sleeve and the inner sleeve, and the sealing plate is fixedly connected to the outer sleeve by bolts. The sealing plate is made of fire-resistant material.

[0021] Through the above technical solution, the sealing plate can protect the inner tube sleeve under high temperature conditions.

[0022] Furthermore, the outer sleeve is provided with two vent holes on its outer side, and the two vent holes are located at both ends of the outer sleeve respectively;

[0023] Through the above technical solution, the vent hole can release excess air generated during the pouring of the first and second waterproof layers, thereby enhancing the waterproof performance of the first and second waterproof layers.

[0024] 3. Beneficial effects

[0025] This utility model provides a rigid waterproof pipe sleeve structure for urban underground railways. It has the following beneficial effects:

[0026] 1. This utility model provides a rigid waterproof pipe sleeve structure for urban underground railways. Through the setting of an outer sleeve, a water-stop steel plate, a positioning plate, an inner pipe sleeve, an exhaust hole, a first waterproof layer, a second waterproof layer, a sealing layer, and a sealing plate, the device can protect the outside of the equipment pipe body during use, preventing external environmental corrosion of the equipment pipe body. Moreover, through the multiple waterproof structures, the device can effectively improve the waterproof performance of the pipe sleeve, prevent groundwater infiltration, and protect the equipment pipe body from damage. It solves the problem of poor sealing performance and easy groundwater infiltration after long-term use of the pipe sleeve structure.

[0027] 2. This utility model provides a rigid waterproof pipe sleeve structure for urban underground railways. By setting up an outer sleeve, a water-stop steel plate, a wall panel, a first sealing layer, and a second sealing layer, the device can not only stop water in the center of the outer sleeve during use, but also ensure that the two ends of the outer sleeve in contact with the wall are firmly fixed. In addition, multiple waterproof mechanisms are added at the fixed position, which solves the problem that some rigid waterproof sleeves have a gradually increasing crack between the wall and the sleeve during long-term use, resulting in a decrease in sealing effect. Attached Figure Description

[0028] Figure 1 This is an axial view schematic diagram of the present invention;

[0029] Figure 2 This is a schematic axial sectional view of the present invention;

[0030] Figure 3 This is a front sectional view of the present invention;

[0031] Figure 4 This is a side-axis sectional view of the present invention;

[0032] Figure 5 This is a side-axis view of the present invention.

[0033] In the picture:

[0034] 1. Outer sleeve; 2. Equipment pipe body; 3. Water-stop steel plate; 4. Positioning plate; 5. Inner sleeve; 6. Vent hole; 7. Wall panel; 8. First sealing layer; 9. Second sealing layer; 10. First waterproof layer; 11. Second waterproof layer; 12. Sealing layer; 13. Sealing plate. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific implementation method 1:

[0037] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4This embodiment of a rigid waterproof pipe sleeve structure for urban underground railways includes an outer pipe sleeve 1, an equipment pipe body 2 inside the outer pipe sleeve 1, a water-stop steel plate 3 fixedly connected to the outer side of the outer pipe sleeve 1, a positioning plate 4 fixedly connected to the inner side of the outer pipe sleeve 1, an inner pipe sleeve 5 fixedly connected to the inner side of the positioning plate 4, the equipment pipe body 2 located inside the inner pipe sleeve 5, a wall panel 7 fixedly connected to the outer side of the outer pipe sleeve 1, a first waterproof layer 10 on both sides of the positioning plate 4, a second waterproof layer 11 fixedly connected to the end of the first waterproof layer 10 away from the positioning plate 4, and a sealing layer 12 fixedly connected to the end of the second waterproof layer 11 away from the first waterproof layer 10, the water-stop steel plate 3 fixedly connected to the outer side of the outer pipe sleeve 1 by welding, and the positioning plate 4 fixedly connected to the inner side of the outer pipe sleeve 1 by welding. The inner sleeve 5 is made of high-strength polyethylene. The first waterproof layer 10, the second waterproof layer 11, and the sealing layer 12 are all located between the inner sleeve 5 and the outer sleeve 1. The first waterproof layer 10 is made of fiber-reinforced concrete, the second waterproof layer 11 is made of polymer cement mortar, and the sealing layer 12 is made of water-swellable waterstop strip. The outer sleeve 1 is internally fixedly connected with two sealing plates 13, which are located at both ends of the outer sleeve 1. The sealing plates 13 are located between the outer sleeve 1 and the inner sleeve 5 and are fixedly connected to the outer sleeve 1 by bolts. The sealing plates 13 are made of fire-resistant material. The outer sleeve 1 has two vent holes 6 on its outer side, which are located at both ends of the outer sleeve 1. Specific implementation method 2:

[0039] Please see Figure 4 , Figure 5 In this embodiment, a rigid waterproof pipe sleeve structure for urban underground railways is provided. There are two wall panels 7, which are located at both ends of the outer pipe sleeve 1. A first sealing layer 8 is fixedly connected to the side of the wall panel 7, and a second sealing layer 9 is fixedly connected to the side of the wall panel 7. The first sealing layer 8 is annular and located outside the outer pipe sleeve 1, and the second sealing layer 9 is annular and located outside the first sealing layer 8. The material of the first sealing layer 8 is polymer cement mortar, and the material of the second sealing layer 9 is a water-swellable waterstop strip.

[0040] This embodiment describes a rigid waterproof pipe sleeve structure for urban underground railways. It should be noted that the arrangement of the outer sleeve, water-stop steel plate 3, positioning plate 4, inner sleeve 5, vent 6, first waterproof layer 10, second waterproof layer 11, sealing layer 12, and sealing plate 13 enables the device to protect the outer side of the equipment pipe body 2 during use, preventing external environmental corrosion. Furthermore, the multiple waterproof structures effectively improve the waterproof performance of the pipe sleeve, preventing groundwater infiltration and protecting the equipment pipe body 2 from damage. This solves the problem of poor sealing performance and easy groundwater infiltration after prolonged use of the pipe sleeve structure. The outer sleeve, water-stop steel plate 3, wall plate 7, first sealing layer 8, and second sealing layer 9 ensure that, in addition to water-stopping the center of the outer sleeve 1, the device also provides stable fixation at both ends of the outer sleeve 1 in contact with the wall. The addition of multiple waterproof mechanisms at the fixed positions solves the problem of gradually increasing cracks between the wall and the pipe sleeve, leading to reduced sealing performance in some rigid waterproof sleeves during long-term use.

[0041] The working principle of the above embodiment is as follows: In use, the outer sleeve 1 is fixed inside the wall, at which time the water-stop steel plate 3 is located inside the wall, and the inner sleeve 5 is located inside the positioning plate 4 and is fixedly connected to the positioning plate 4. Then, the equipment pipe body 2 can be placed inside the inner sleeve 5. During placement, the positioning plate 4 supports the equipment pipe body 2, so that the equipment pipe body 2 is located at the center inside the outer sleeve 1. Then, the inner sleeve 5 wraps around the equipment pipe body 2 to protect it. At this time, the wall panel 7 is in contact with the wall, and then the wall panel 7 is... The wall panel 7 is fixed to the wall using external bolts. After fixing, a first sealing layer 8 is poured into the gap between the wall panel 7 and the wall. After the first sealing layer 8 solidifies, a second sealing layer 9 is fixed to the outside of the first sealing layer 8, thus completing the double waterproofing between the two ends of the outer sleeve 1 and the wall. Then, a first waterproof layer 10 is poured into the space between the outer sleeve 1 and the wall. When pouring the first waterproof layer 10, external tools can be used to squeeze the first waterproof layer 10 to expel excess air from inside the first waterproof layer 10. Inside the sleeve 1, after the first waterproof layer 10 is poured, the second waterproof layer 11 can be poured. During the pouring of the second waterproof layer 11, external tools are used to press the second waterproof layer 11 to expel excess air. After expelling the air, the second waterproof layer 11 can be used to seal the vent hole 6, preventing moisture from entering the interior of the outer sleeve 1. Then, the sealing layer 12 is placed on the side of the second waterproof layer 11 and fixed in place, ensuring a tight fit between the sealing layer 12 and the second waterproof layer 11. Finally, the sealing plate 13 can be installed. The sealing plate 13 is fixed by external bolts, and then the device can be used. When in use, the second sealing layer 9 expands when it comes into contact with water to provide waterproofing. The first sealing layer 8 not only seals off excess water but also connects the wall panel 7 to the wall. The sealing plate 13 provides heat insulation against high temperatures when a fire occurs. The sealing layer 12 expands when it comes into contact with water to provide initial waterproofing. The second waterproof layer 11 works in conjunction with the first waterproof layer 10 to provide waterproofing. The inner sleeve 5 protects the equipment pipe body 2 at all times to prevent external environmental corrosion of the equipment pipe body 2.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rigid waterproof pipe sleeve structure for urban underground railways, comprising an outer pipe sleeve (1), characterized in that: The outer sleeve (1) is provided with an equipment pipe body (2) inside. A water-stop steel plate (3) is fixedly connected to the outer side of the outer sleeve (1). A positioning plate (4) is fixedly connected to the inner side of the outer sleeve (1). An inner sleeve (5) is fixedly connected to the inner side of the positioning plate (4). The equipment pipe body (2) is located inside the inner sleeve (5). A wall panel (7) is fixedly connected to the outer side of the outer sleeve (1). A first waterproof layer (10) is provided on both sides of the positioning plate (4). A second waterproof layer (11) is fixedly connected to the end of the first waterproof layer (10) away from the positioning plate (4). A sealing layer (12) is fixedly connected to the end of the second waterproof layer (11) away from the first waterproof layer (10).

2. The rigid waterproof pipe sleeve structure for urban underground railway according to claim 1, characterized in that: The water-stop steel plate (3) is fixedly connected to the outside of the outer sleeve (1) by welding, the positioning plate (4) is fixedly connected to the inside of the outer sleeve (1) by welding, and the inner sleeve (5) is made of high-strength polyethylene material.

3. The rigid waterproof pipe sleeve structure for urban underground railway according to claim 1, characterized in that: There are two wall panels (7), which are located at both ends of the outer sleeve (1). A first sealing layer (8) is fixedly connected to the side of the wall panel (7), and a second sealing layer (9) is fixedly connected to the side of the wall panel (7).

4. The rigid waterproof pipe sleeve structure for urban underground railway of claim 3, characterized in that: The first sealing layer (8) is annular and located outside the outer sleeve (1), and the second sealing layer (9) is annular and located outside the first sealing layer (8). The material of the first sealing layer (8) is polymer cement mortar, and the material of the second sealing layer (9) is water-swellable waterstop strip.

5. The rigid waterproof pipe sleeve structure for urban underground railway of claim 1, wherein: The first waterproof layer (10), the second waterproof layer (11) and the sealing layer (12) are all located between the inner sleeve (5) and the outer sleeve (1). The first waterproof layer (10) is made of fiber reinforced concrete, the second waterproof layer (11) is made of polymer cement mortar, and the sealing layer (12) is made of water-swellable waterstop strip.

6. The rigid waterproof pipe sleeve structure for urban underground railway according to claim 1, characterized in that: The outer sleeve (1) is fixedly connected to a sealing plate (13). There are two sealing plates (13), which are located at the two ends of the outer sleeve (1).

7. The rigid waterproof pipe sleeve structure for urban underground railway according to claim 6, characterized in that: The sealing plate (13) is located between the outer sleeve (1) and the inner sleeve (5). The sealing plate (13) is fixedly connected to the outer sleeve (1) by bolts. The sealing plate (13) is made of fire-resistant material.

8. The rigid waterproof pipe sleeve structure for urban underground railway of claim 1, wherein: The outer sleeve (1) has two exhaust holes (6) on its outer side. The two exhaust holes (6) are located at the two ends of the outer sleeve (1).

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