Anti-leakage bell and spigot structure of underground communication channel

Abstract

The utility model relates to the technical field of waterproof engineering, in particular to an anti-leakage bell and spigot structure of an underground linkage channel, a deformation joint is arranged between a bell end and a spigot end, an extruded polystyrene board and first elastic sealant are arranged in the deformation joint, the first elastic sealant is arranged on the inward side of the extruded polystyrene board, and the first elastic sealant is arranged on the inward side of the extruded polystyrene board. Meanwhile, a waterproof coiled material is arranged at the upper end of the socket end, the waterproof coiled material at the upper end of the socket end is connected with the waterproof coiled material at the upper end of the spigot end, fine aggregate concrete is arranged at the upper end of the waterproof coiled material, and a waterproof breathable film is arranged at the upper end of the fine aggregate concrete. Various waterproof materials such as the waterproof roll, the fine aggregate concrete and the waterproof breathable film are stacked layer by layer to form a tight waterproof protective layer, so that moisture permeation can be prevented to the greatest extent, meanwhile, enough length is reserved for the waterproof roll to ensure that the waterproof roll is in lap joint with the socket end, and the hidden danger of leakage of a joint can be eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof engineering, in particular to an anti-leakage socket structure of an underground connecting channel. Background Art

[0002] Due to urban planning or investment plans, underground interconnecting structures often cannot be constructed synchronously. This can easily lead to uneven settlement of the structure, resulting in leakage in deformation joints, and even structural safety problems, thus affecting the use of the project or causing safety accidents, especially in areas with high groundwater levels and soft foundation soil.

[0003] The Chinese invention disclosed in the publication number CN108487414A discloses a waterproof structure and construction method for the joint of a socket or steel socket concrete pipe, comprising a base treatment agent layer on the outer wall of the pipe on both sides of the pipe joint, the base treatment agent layer extending at least 400mm along the joint to the outer pipe wall of the pipe on both sides; the base treatment agent layer is provided with a 1.5mm-2.5mm thick sprayed quick-setting liquid rubber layer covering the top of the joint, the sprayed quick-setting liquid rubber layer extending at least 300mm along the joint to the outer pipe wall of the pipe on both sides; the sprayed quick-setting liquid rubber layer is coated with a heat shrink tape, the thickness of the heat shrink tape is at least 1mm. The waterproof structure of the invention improves the reliability and durability of the pipe joint seal, can realize rapid rescue and repair when the pipe leaks, saves construction time and construction costs, reduces the occurrence of leakage, and is of great significance to reducing the pollution of groundwater caused by leakage, extending the service life of the pipe, and improving social benefits. However, the invention still has the problem of water seepage when it is in a water-stagnant state for a long time. Utility Model Content

[0004] The utility model aims to provide an anti-leakage socket structure for an underground connecting channel, so as to solve the problems raised in the above-mentioned background technology.

[0005] The technical solution of the utility model is: an anti-leakage bell-and-spigot structure of an underground connecting channel, comprising a bell end and a spigot end, the bell end is arranged on the side of the spigot end, and the bell end is trumpet-shaped, the end of the spigot end is inserted into the trumpet mouth of the bell end, a deformation joint is arranged between the bell end and the spigot end, an extruded polystyrene board and an elastic sealant are arranged inside the deformation joint, the elastic sealant is arranged on the inner side of the extruded polystyrene board, and at the same time, a waterproof membrane is arranged on the upper end of the bell end, and the waterproof membrane on the upper end of the bell end is connected with the waterproof membrane on the upper end of the spigot end, fine stone concrete is arranged on the upper end of the fine stone concrete, and a waterproof breathable membrane is arranged on the upper end of the fine stone concrete.

[0006] Furthermore, a plastic foam rod is provided at the intersection between the end of the socket end and the upper end of the plug end, and the plastic foam rod is provided inside the deformation joint. At the same time, a circular arc portion is provided on the outside of the plastic foam rod, and the circular arc portion is provided at the lower end of the waterproof membrane and the elastic sealant.

[0007] Furthermore, a metal frame is provided between the end of the socket end and the end of the plug end, and the side of the metal frame is connected to the end of the socket end and the end of the plug end through an embedded rubber waterstop.

[0008] Furthermore, the lower ends of the metal frame and the embedded rubber waterstop are provided with elastic sealant 2 and a water-swellable rubber waterstop strip, and the elastic sealant 2 is provided on the upper end of the water-swellable rubber waterstop strip.

[0009] Furthermore, the extruded polystyrene board and elastic sealant 1 are arranged at the lower end of the socket end and the upper end of the plug end, and the extruded polystyrene board is arranged at the upper end of the elastic sealant 1, and the outward end of the extruded polystyrene board and the elastic sealant 1 are fixedly connected with the elastic sealant 2 and the water-swellable rubber waterstop strip, the elastic sealant 2 is arranged on the inward side of the water-swellable rubber waterstop strip, and the outward side of the water-swellable rubber waterstop strip is connected to the plastic foam rod.

[0010] Furthermore, the bell mouth of the socket end is provided with a socket tip, the end of the socket tip is provided with an inclination angle, and the inner side of the socket tip is provided with a crack-resistant steel wire mesh.

[0011] The utility model provides an anti-leakage socket structure for an underground connecting passage through improvement, which has the following improvements and advantages compared with the prior art:

[0012] Firstly, the utility model uses multiple waterproof materials such as waterproof roll, fine stone concrete and waterproof breathable membrane to form a strict waterproof protective layer, so as to prevent water penetration to the greatest extent. At the same time, the waterproof roll is reserved with sufficient length to ensure overlap with the socket end, which can eliminate the hidden danger of leakage at the joint;

[0013] Second: The socket end of the utility model is designed to be trumpet-shaped and matched with a crack-resistant steel wire mesh, which can not only enhance the integrity and crack resistance of the socket, but also effectively prevent cracking caused by stress concentration and uneven settlement;

[0014] Thirdly, the utility model implants a plastic foam rod inside the deformation joint and smears out a circular arc portion with waterproof mortar, which can not only prevent the waterproof roll from hollowing, but also enhance the sealing of the deformation joint and reduce the possibility of water penetration;

[0015] Fourthly: the utility model sets a metal frame at the connection part between the socket end and the plug end, and connects them through an embedded rubber waterstop, and is equipped with elastic sealant and water-swelling rubber waterstop strip, forming a double waterproof protection, thereby greatly improving the waterproof performance and service life of the underground connecting channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a structural schematic diagram of the anti-leakage socket structure of the underground connecting channel of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the inner wall portion of the socket end of the utility model;

[0019] Description of reference numerals:

[0020] 1. Waterproof breathable membrane; 2. Fine stone concrete; 3. Waterproof membrane; 4. Socket end; 5. Extruded polystyrene board; 6. Elastic sealant 1; 7. Plastic foam rod; 8. Elastic sealant 2; 9. Water-swelling rubber waterstop strip; 10. Plug end; 11. Metal frame; 12. Embedded rubber waterstop; 13. Crack-resistant steel wire mesh; 14. Socket tip; 15. Expansion joint. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0024] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0025] refer to Figure 1 and Figure 2 The present embodiment provides an anti-leakage bell-and-spigot structure for an underground connecting passage, which includes a bell end 4 and a spigot end 10. The bell end 4 is trumpet-shaped, and the bell mouth of the bell end 4 is provided with a bell tip 14, and the end of the bell tip 14 is provided with an inclination angle, and the inner side of the bell tip 14 is provided with an anti-crack steel wire mesh 13, so as to improve the integrity and crack resistance of the structure.

[0026] In this embodiment, the socket end 4 is arranged on the side of the plug end 10, and the end of the plug end 10 is inserted into the inside of the bell mouth of the socket end 4. Specifically, a deformation joint 15 is arranged between the socket end 4 and the plug end 10, and the width of the deformation joint 15 is set to 30mm. Further, an extruded polystyrene board 5 and an elastic sealant 6 are arranged inside the deformation joint 15, wherein the elastic sealant 6 is arranged on the inner side of the extruded polystyrene board 5, and at the same time, a waterproof roll 3 is arranged at the upper end of the socket end 4, and the waterproof roll 3 at the upper end of the socket end 4 is connected with the waterproof roll 3 at the upper end of the plug end 10, and the upper end of the waterproof roll 3 is arranged with fine stone concrete 2, and the upper end of the fine stone concrete 2 is arranged with a waterproof breathable membrane 1. It is worth noting that the waterproof roll 3 at the upper end of the socket end 4 needs to reserve a length of not less than 250mm that can be laid to the plug end 10, so as to facilitate the connection with the waterproof roll 3 at the upper end of the plug end 10.

[0027] Furthermore, a plastic foam rod 7 is provided at the intersection between the end of the socket end 4 and the upper end of the plug end 10, and the plastic foam rod 7 is provided inside the deformation joint 15. At the same time, a circular arc portion is provided outside the plastic foam rod 7, and the circular arc portion is provided at the lower end of the waterproof membrane 3 and the elastic sealant 6.

[0028] Furthermore, a metal frame 11 is provided between the end of the socket end 4 and the end of the plug end 10, and the side of the metal frame 11 is connected to the end of the socket end 4 and the end of the plug end 10 through the embedded rubber water stop 12. At the same time, the lower ends of the metal frame 11 and the embedded rubber water stop 12 are provided with elastic sealant 28 and water-swelling rubber water stop strip 9, and the elastic sealant 28 is provided at the upper end of the water-swelling rubber water stop strip 9.

[0029] It is worth noting that the extruded polystyrene board 5 and the elastic sealant 6 are arranged at the lower end of the socket end 4 and the upper end of the plug end 10, and the extruded polystyrene board 5 is arranged at the upper end of the elastic sealant 6, and the outward end of the extruded polystyrene board 5 and the elastic sealant 6 are fixedly connected with the elastic sealant 2 8 and the water-swellable rubber waterstop strip 9, the elastic sealant 2 8 is arranged on the inward side of the water-swellable rubber waterstop strip 9, and the outward side of the water-swellable rubber waterstop strip 9 is connected to the plastic foam rod 7.

[0030] Further, the implementation process of the anti-leakage socket structure of the underground connecting channel in this embodiment is as follows:

[0031] The first step: according to the design drawings and specifications, the socket end 4 and the plug end 10 are made. The socket end 4 is designed in a trumpet shape, and the socket tip 14 has an inclined angle, and the anti-crack steel wire mesh 13 is embedded inside to enhance the integrity and crack resistance of the socket end 4.

[0032] Step 2: A 30 mm wide deformation joint 15 is reserved at the connection between the socket end 4 and the plug end 10, and an extruded polystyrene board 5 is filled inside the deformation joint 15 to adapt to the asynchronous settlement deformation of the structure. Then, an elastic sealant 6 is applied to the inner side of the extruded polystyrene board 5 to enhance the sealing performance at the deformation joint 15.

[0033] Step 3: Preliminarily lay waterproofing membrane 3 on the upper end of socket end 4, and ensure that waterproofing membrane 3 extends to at least 250mm in the direction of plug end 10, so as to seamlessly overlap with waterproofing membrane 3 on the upper end of plug end 10. At the same time, fine stone concrete 2 is laid on the top of waterproofing membrane 3, and waterproof breathable membrane 1 is set on the top of fine stone concrete 2, so as to form a complete waterproof protective layer.

[0034] Step 4: implant a plastic foam rod 7 inside the deformation joint 15 at the intersection of the socket end 4 and the plug end 10, and use waterproof mortar to smear an arc portion at the plastic foam rod 7, that is, an arc-shaped structure, and closely adhere to the waterproof membrane 3 and the elastic sealant 6 to prevent the waterproof membrane 3 from hollowing out at this point.

[0035] Step 5: Set a metal frame 11 at the core connection between the socket end 4 and the plug end 10, and connect them tightly through the embedded rubber waterstop 12. At the same time, arrange elastic sealant 8 and water-swellable rubber waterstop strip 9 under the metal frame 11 and the embedded rubber waterstop 12 to form double waterproof protection.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-leakage bell-and-spigot structure for an underground connecting passage, comprising a bell end (4) and a spigot end (10), wherein the bell end (4) is arranged on the side of the spigot end (10), and the bell end (4) is trumpet-shaped, and the end of the spigot end (10) is inserted into the trumpet mouth of the bell end (4), characterized in that: A deformation joint (15) is arranged between the socket end (4) and the plug end (10), and an extruded polystyrene board (5) and an elastic sealant (6) are arranged inside the deformation joint (15), and the elastic sealant (6) is arranged on the inner side of the extruded polystyrene board (5). At the same time, a waterproof roll (3) is arranged on the upper end of the socket end (4), and the waterproof roll (3) on the upper end of the socket end (4) is connected to the waterproof roll (3) on the upper end of the plug end (10), and fine stone concrete (2) is arranged on the upper end of the waterproof roll (3), and a waterproof breathable membrane (1) is arranged on the upper end of the fine stone concrete (2).

2. The anti-leakage bell-and-spigot structure of an underground connecting passage according to claim 1, characterized in that: A plastic foam rod (7) is arranged at the intersection between the end of the socket end (4) and the upper end of the plug end (10), and the plastic foam rod (7) is arranged inside the deformation joint (15). At the same time, a circular arc portion is arranged outside the plastic foam rod (7), and the circular arc portion is arranged at the lower end of the waterproof coiled material (3) and the elastic sealant (6).

3. The anti-leakage socket structure of an underground connecting passage according to claim 1 or 2, characterized in that: A metal frame (11) is provided between the end of the socket end (4) and the end of the plug end (10), and the side of the metal frame (11) is connected to the end of the socket end (4) and the end of the plug end (10) through an embedded rubber water stop (12).

4. The anti-leakage bell-and-spigot structure of an underground connecting passage according to claim 3, characterized in that: The lower ends of the metal frame (11) and the embedded rubber waterstop strip (12) are provided with elastic sealant 2 (8) and a water-swelling rubber waterstop strip (9), and the elastic sealant 2 (8) is arranged on the upper end of the water-swelling rubber waterstop strip (9).

5. The anti-leakage bell-and-spigot structure of an underground connecting passage according to claim 1, characterized in that: The extruded polystyrene board (5) and the elastic sealant one (6) are arranged at the lower end of the socket end (4) and the upper end of the plug end (10), and the extruded polystyrene board (5) is arranged at the upper end of the elastic sealant one (6), and the outward end of the extruded polystyrene board (5) and the elastic sealant one (6) are fixedly connected with the elastic sealant two (8) and the water-swellable rubber waterstop strip (9), the elastic sealant two (8) is arranged on the inward side of the water-swellable rubber waterstop strip (9), and the outward side of the water-swellable rubber waterstop strip (9) is connected to the plastic foam rod (7).

6. The anti-leakage bell-and-spigot structure of an underground connecting passage according to claim 1, characterized in that: The bell mouth of the socket end (4) is provided with a socket tip (14), the end of the socket tip (14) is provided with an inclination angle, and the inner side of the socket tip (14) is provided with a crack-resistant steel wire mesh (13).

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