Shield concrete duct piece pre-embedded water stop strip positioning structure

Abstract

The utility model discloses a shield concrete segment pre-embedded water-stop strip positioning structure, which belongs to the technical field of pre-embedded water-stop strips, and comprises a mold, a water-stop strip and a positioning piece, an assembly groove is arranged in the mold, a positioning groove is arranged on the water-stop strip, one end of the water-stop strip is connected in the assembly groove, the other end of the water-stop strip is positioned outside the assembly groove, and the positioning piece is arranged in the assembly groove. And the positioning piece is connected into the positioning groove. The assembling groove is formed in the mold, the water stop strip is installed in the assembling groove, the positioning groove is formed in the water stop strip, the positioning piece is installed in the positioning groove, the stability of the positioning piece is improved, meanwhile, the positioning piece is made of water-swelling rubber, the connecting stability of the water stop strip is improved in the pouring process, and the phenomenon that the water stop strip is not prone to falling off when concrete is poured is avoided. According to the structure, the water stop strip is embedded unstably and falls off, the water stop strip is embedded in the pouring process of the structure, later installation is avoided, the sealing and water seepage prevention effects are achieved, and the better water stop effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pre-embedded water stop strips, and in particular relates to a positioning structure for pre-embedded water stop strips of a shield concrete pipe segment. Background Art

[0002] Pipe segment water stop strips can effectively prevent tunnel leakage. However, the later installation of pipe segment water stop strips has problems such as non-standard pasting and falling off during construction, which brings difficulties to construction and waterproofing. At the same time, for the common problem of water seepage at the joints of pipe segments, the core water seepage path is often through the contact interface between the pipe segment and the gasket, which is mainly due to the inherent limitations of the traditional gasket installation method.

[0003] Among them, Chinese patent CN205078287U fixes the sealing gasket on the pipe segment by gluing after the pipe segment is produced. In order to stick it tightly, the contact surface between the sealing gasket and the pipe segment must be a plane, which makes the seepage channel straight and prone to water seepage.

[0004] However, its pasting and fixing method requires that the contact surface must remain highly flat to ensure the tightness of the pasting. This planar contact design may become a weak link in water seepage in actual applications, because the flat contact interface that lacks sufficient complexity is difficult to completely block the water flow path, especially under water pressure fluctuations or long-term water erosion. The sealing effect is easily affected, resulting in frequent water seepage. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing method of gluing and fixing sealing gaskets and pipe segments requires that the contact surface must be kept highly flat to ensure the tightness of the gluing. This planar contact design may become a weak link in water seepage in actual applications, because the flat contact interface lacks sufficient complexity and is difficult to completely block the water flow path. Especially under water pressure fluctuations or long-term water erosion, the sealing effect is easily affected, resulting in frequent water seepage. A shield concrete pipe segment pre-embedded waterstop strip positioning structure is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a shield concrete segment pre-embedded waterstop strip positioning structure, including a mold, a waterstop strip and a positioning piece, the mold is provided with an assembly groove, the waterstop strip is provided with a positioning groove, one end of the waterstop strip is connected to the assembly groove, and the other end is located outside the assembly groove, and the positioning piece is connected to the positioning groove.

[0007] As a further description of the above technical solution:

[0008] A clamping protrusion is arranged in the assembly groove, and a clamping groove is arranged on the water stop strip, and the clamping groove is correspondingly clamped on the clamping protrusion.

[0009] As a further description of the above technical solution:

[0010] A sealing body is arranged on the water stop strip, and the width of the sealing body is greater than the width of the assembly groove.

[0011] As a further description of the above technical solution:

[0012] An abutment protrusion is arranged in the positioning groove, and an abutment groove is arranged on the positioning member, and the abutment protrusion is correspondingly engaged in the abutment groove.

[0013] As a further description of the above technical solution:

[0014] The positioning groove is located between the two clamping grooves.

[0015] As a further description of the above technical solution:

[0016] The positioning piece is made of water-swellable rubber.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] 1. In the utility model, an assembly groove is provided on the mold, the water stop strip is installed in the assembly groove, a positioning groove is provided on the water stop strip, and the positioning piece is installed in the positioning groove. When pouring concrete, water enters, so that the positioning piece inside the water stop strip expands when encountering water, thereby improving the stability of the positioning piece and preventing the water stop strip from falling off due to unstable pre-embeddedness during concrete pouring. This structure pre-embeds the water stop strip during pouring, avoiding later installation, achieving the effect of sealing and water seepage prevention, and realizing a better water stop effect.

[0019] 2. In the utility model, by setting the positioning groove between the two clamping grooves, when the positioning piece is installed, the clamping protrusions on both sides of the water stop strip can be subjected to force on both sides, so the water stop strip can be positioned, which greatly improves the pre-embedded stability of the water stop strip and avoids the pre-embedded water stop strip from falling off when pouring concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is an exploded view of the positioning structure of a pre-embedded water stop strip for a shield concrete segment.

[0022] Figure 2 It is a cross-sectional view of a positioning structure for pre-embedded waterstop strips in a shield concrete segment.

[0023] Figure 3 The schematic diagram is a structural diagram of a positioning component in a positioning structure for pre-embedded water stop strips in a shield concrete segment.

[0024] Legend:

[0025] 1-mould; 2-water stop strip; 3-positioning piece; 4-assembly groove; 5-positioning groove; 6-clamping protrusion; 7-clamping groove; 8-sealing body; 9-abutment protrusion; 10-abutment groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1-3 The utility model provides a technical solution: a shield concrete segment embedded water stop strip positioning structure, including a mold 1, a water stop strip 2 and a positioning piece 3, the mold 1 is provided with an assembly groove 4, the water stop strip 2 is provided with a positioning groove 5, one end of the water stop strip 2 is connected to the assembly groove 4, and the other end is located outside the assembly groove 4, and the positioning piece 3 is connected to the positioning groove 5.

[0033] A clamping protrusion 6 is provided in the assembly groove 4 , and a clamping groove 7 is provided on the water stop strip 2 . The clamping groove 7 is correspondingly clamped on the clamping protrusion 6 .

[0034] The water stop strip 2 is provided with a sealing body 8, and the width of the sealing body 8 is greater than the width of the assembly groove 4, so that the water stop strip has a good water stop effect.

[0035] The positioning groove 5 is provided with an abutting protrusion 9, and the positioning member 3 is provided with an abutting groove 10, and the abutting protrusion 9 is correspondingly engaged in the abutting groove 10, thereby improving the stability of the positioning member installed in the positioning groove.

[0036] The positioning groove 5 is located between the two clamping grooves 7. When the positioning member is installed, the clamping protrusions on both sides of the water stop strip can be stressed, and the water stop strip can be positioned, which greatly improves the pre-embedded stability of the water stop strip and avoids the pre-embedded water stop strip from falling when pouring concrete.

[0037] The positioning piece is made of water-swelling rubber. When water enters the concrete pouring, the positioning piece inside the water stop strip expands when it comes into contact with water, thereby improving the stability of the positioning piece.

[0038] Working principle: An assembly groove is set on the mold, and the waterstop strip is installed in the assembly groove. A positioning groove is set on the waterstop strip, and the positioning piece is installed in the positioning groove. When pouring concrete, water enters, causing the positioning piece inside the waterstop strip to expand when encountering water, thereby improving the stability of the positioning piece and preventing the waterstop strip from falling off due to unstable pre-embeddedness when pouring concrete. This structure pre-embeds the waterstop strip during pouring to avoid later installation, thereby achieving the effect of sealing and anti-water seepage, and realizing a better water-stopping effect.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shield concrete segment embedded water stop strip positioning structure, characterized in that: It includes a mold, a water stop strip and a positioning piece. The mold is provided with an assembly groove, the water stop strip is provided with a positioning groove, one end of the water stop strip is connected to the assembly groove, and the other end is located outside the assembly groove. The positioning piece is connected to the positioning groove.

2. A shield concrete segment pre-embedded water stop strip positioning structure according to claim 1, characterized in that: A clamping protrusion is arranged in the assembly groove, and a clamping groove is arranged on the water stop strip, and the clamping groove is correspondingly clamped on the clamping protrusion.

3. A shield concrete segment embedded water stop strip positioning structure according to claim 2, characterized in that: A sealing body is arranged on the water stop strip, and the width of the sealing body is greater than the width of the assembly groove.

4. A shield concrete segment pre-embedded water stop strip positioning structure according to claim 1, characterized in that: An abutment protrusion is arranged in the positioning groove, and an abutment groove is arranged on the positioning member, and the abutment protrusion is correspondingly engaged in the abutment groove.

5. A shield concrete segment pre-embedded water stop strip positioning structure according to claim 2, characterized in that: The positioning groove is located between the two clamping grooves.

6. The shield concrete segment pre-embedded water stop strip positioning structure according to claim 1, characterized in that , the positioning piece is made of water-swellable rubber.

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