Prefabricated concrete inspection well and PE pipeline connector connecting structure
By setting up interface steel molds and casting layers at the interface between the precast concrete inspection well and the PE pipeline, combined with arc-shaped installation holes and expansion water stop strips, the problems of interface loosening and leakage are solved, and the stable and sealed connection between the pipeline and the inspection well are achieved. , prevent sewage pollution.
Patent Information
- Application Number
- CN202421043296.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-13
AI Technical Summary
In the prior art, when the precast concrete inspection well is connected to the PE pipeline, it is prone to loosen the interface and leak due to soil pressure and lateral soil settlement, and sewage pollutes the environment.
A precast concrete inspection well interface connection structure with PE pipeline was designed. By setting the interface steel mold and casting layer at the interface, an anti-seepage fine stone concrete sealing ring is formed, and the arc-shaped installation hole and expansion water stop strip are combined to ensure that the pipeline is Check the stable connection and sealing of the well.
It realizes a fast and reliable connection between the pipeline and the inspection well, prevents collapse, ensures the tightness and stability of the interface, and avoids sewage leakage.
Smart Images
Figure CN222227500U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drainage pipeline installation structure, in particular to a prefabricated concrete inspection well and a PE pipeline interface connection structure. Background Art
[0002] In the renovation of old urban communities, the renovation of drainage pipe networks in old communities is an important part of the comprehensive improvement of urban water environment. During the renovation process, it is difficult to collect water for residents' daily life, and it is easy to carry water during construction.
[0003] PE pipes are widely used in drainage networks. At present, when prefabricated inspection wells are connected to PE pipes, cement mortar is used to fill the gaps. This type of interface is a rigid connection and is easily affected by the soil pressure above the pipe and the lateral soil settlement friction resistance, causing the interface to loosen, leading to interface leakage and sewage seepage that pollutes the environment. Utility Model Content
[0004] The utility model aims to provide a prefabricated concrete inspection well and PE pipe interface connection structure, which solves the technical problems of loose sealing and complicated procedures of the annular gap formed between the outer wall of the PE pipe and the lower opening of the inspection well in the prior art.
[0005] The present application embodiment discloses a prefabricated concrete inspection well and PE pipe interface connection structure, including:
[0006] Inspection well body;
[0007] An interface steel mold is installed on both sides of the inspection well body, and a mounting hole is opened at the bottom of the interface steel mold, and the mounting hole matches the lower hole of the inspection well body;
[0008] A pipe, the pipe is inserted from the mounting hole into the lower hole of the inspection well body, and a casting cavity is formed between the outer wall of the pipe, the outer wall of the inspection well body, and the inner wall of the interface steel mold;
[0009] The casting layer is arranged inside the casting cavity.
[0010] The present application designs the assembly of the pipeline, adds an excuse steel mold, and uses the subsequent pouring layer to form an impermeable fine stone concrete sealing ring to ensure the stability of the pipeline assembly.
[0011] Based on the above technical solution, the embodiment of the present application can also be improved as follows:
[0012] Furthermore, the top of the mounting hole is an arc shape matching the outer wall of the pipeline. The beneficial effect of adopting this step is that the stability of pipeline assembly can be ensured by the arc shape.
[0013] Furthermore, the pipeline is a PE pipeline, and the beneficial effect of adopting this step is to ensure fluidity through the PE pipeline.
[0014] Furthermore, the interface steel mold comprises:
[0015] Steel mold body, the steel mold body is a steel plate with a thickness of 8mm and a hardness of HRC44;
[0016] The round steel handle is installed on the steel mold body. The beneficial effect of adopting this step is that sufficient assembly strength can be ensured through the interface steel mold.
[0017] Furthermore, the outer wall of the pipe is provided with an expansion water stop strip. The beneficial effect of adopting this step is that the sealing performance can be improved by the rubber water stop strip.
[0018] Furthermore, the casting layer is a C30 P6 fine stone concrete layer. The beneficial effect of adopting this step is that the fine stone concrete layer facilitates the subsequent formation of a concrete rigid sealing ring.
[0019] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
[0020] 1. The interface construction connection structure in this application can realize a quick and reliable connection between the pipeline and the inspection well body.
[0021] 2. This application can play a good supporting role by providing an interface steel mold and a casting layer to prevent it from collapsing and ensure its supporting stiffness.
[0022] 3. The annular seal at the interface of the PE pipe connection in this application ensures the tightness effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 This is a structural schematic diagram of a precast concrete inspection well and a PE pipe interface connection structure according to a specific embodiment of the utility model;
[0025] Figure 2 for Figure 1 A top view of the
[0026] Figure 3 for Figure 1 Schematic diagram of the structure of the middle interface steel mold;
[0027] The specific reference numerals are as follows:
[0028] 1- Inspection well body; 2- Interface steel mold; 3- Installation hole; 4- Pipeline; 5- Casting cavity; 6- Casting layer;
[0029] 201- steel mold body; 202- round steel handle;
[0030] 401-Rubber waterstop. DETAILED DESCRIPTION
[0031] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0032] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.
[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0034] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0035] Example:
[0036] like Figure 1-3 As shown, an embodiment of the present application discloses a precast concrete inspection well and PE pipe interface connection structure for forming an annular seal while avoiding rigid connection of the interface, thereby effectively avoiding cracking of the interface.
[0037] This application also includes:
[0038] An inspection well body 1, which is an existing well, is provided with a well passage inside, and the lower hole of the inspection well body is roughened for installing subsequent pipelines;
[0039] The interface steel mold 2 is installed on both sides of the inspection well body 1, and the bottom of the interface steel mold 2 is provided with a mounting hole 3, and the mounting hole 3 matches the lower hole of the inspection well body 1. The interface steel mold 2 is connected to the outer side of the inspection well body 1 to form a cavity, and is cast and formed after the pipeline is subsequently installed;
[0040] Pipe 4, the pipe 4 is inserted from the mounting hole 3 into the lower hole of the inspection well body 1, a casting cavity 5 is formed between the outer wall of the pipe 4, the outer wall of the inspection well body 1, and the inner wall of the interface steel mold 2, and the corresponding casting structure of the pipe 4 forms an interface sealing structure;
[0041] The pouring layer 6 is arranged inside the pouring cavity 5 . After the pipeline 4 is laid, the assembly is completed through the pouring layer 6 .
[0042] In one embodiment, if Figure 3 As shown, the top of the mounting hole 3 is an arc that matches the outer wall of the pipe 4. The arc portion of the mounting hole 3 is semicircular, and its inner diameter is the same as the outer diameter of the pipe, thereby ensuring the stability of the pipe after assembly and facilitating subsequent pouring stability.
[0043] Specifically, the pipe 4 is a PE pipe, and pipes made of other materials may also be selected as long as they meet the drainage requirements.
[0044] Wherein, the interface steel mold 2 comprises:
[0045] The steel mold body 201 is a steel plate with a thickness of 8 mm and a hardness of HRC44;
[0046] The round steel handle 202 is installed on the steel mold body 201 , wherein the round steel handle is made by bending Φ10 round steel. The round steel handle 202 can better ensure the assembly of the steel mold body 201 .
[0047] In one embodiment, the outer wall of the pipe 4 is provided with an expansion water stop strip 401. The rubber water stop strip 401 is used to ensure sealing, that is, the sealing of the subsequent pipe 4 can be ensured during installation.
[0048] The casting layer 6 is a C30 P6 fine stone concrete layer, that is, an impermeable fine stone concrete sealing ring is formed by using C30 P6 fine stone concrete.
[0049] The construction method of this application is as follows:
[0050] Step 1: After the concrete inspection well is prefabricated, it is installed on the concrete cushion layer, and the lower hole of the inspection well body is roughened:
[0051] Step 2: After the construction of the inspection well body is completed, the PE pipe is installed, and the interface steel mold is installed at the interface position to fix the PE pipe; after the special interface steel mold is installed in place, the pipe groove is backfilled with sand to the chest cavity, and compacted layer by layer to ensure the stability of the PE pipe:
[0052] Step 3: Wrap the expansion water stop strip spirally around the PE pipe in the lower hole of the inspection well body; pour C30 P6 fine stone concrete through the special interface steel mold and the upper interface of the inspection well body to fill the space inside the steel mold and the hole position, and use a handheld vibrator to pour and vibrate at the same time to make the C30P6 fine stone concrete at the interface dense; the inside of the inspection well body hole is smoothed with waterproof plaster mortar, and an impermeable fine stone concrete sealing ring is formed at the interface between the PE pipe and the inspection well, forming a concrete rigid sealing ring.
[0053] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.
[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.
Claims
1. A prefabricated concrete inspection well and PE pipe interface connection structure, characterized in that: include: Inspection well body; An interface steel mold is installed on both sides of the inspection well body, and a mounting hole is opened at the bottom of the interface steel mold, and the mounting hole matches the lower hole of the inspection well body; A pipe, the pipe is inserted from the mounting hole into the lower hole of the inspection well body, and a casting cavity is formed between the outer wall of the pipe, the outer wall of the inspection well body, and the inner wall of the interface steel mold; The casting layer is arranged inside the casting cavity.
2. The precast concrete inspection well and PE pipe interface connection structure according to claim 1 is characterized in that: The top of the mounting hole is in an arc shape matching with the outer wall of the pipeline.
3. The precast concrete inspection well and PE pipe interface connection structure according to claim 1 is characterized in that: The pipeline is a PE pipeline.
4. The precast concrete inspection well and PE pipe interface connection structure according to claim 1 is characterized in that: The interface steel mold comprises: Steel mold body, the steel mold body is a steel plate with a thickness of 8mm and a hardness of HRC44; A round steel handle is installed on the steel mold body.
5. The precast concrete inspection well and PE pipe interface connection structure according to claim 1 is characterized in that: The outer wall of the pipeline is sheathed with an expansion water stop strip.
6. The precast concrete inspection well and PE pipe interface connection structure according to claim 1 is characterized in that: The casting layer is a C30 P6 fine stone concrete layer.