Connecting structure of PE pipeline and concrete inspection well

Abstract

The utility model provides a connecting structure of a PE pipeline and a concrete inspection well. Comprising a flexible water stop strip, a fixing hoop and a concrete base, the flexible water stop strip bypasses the outer wall of the PE pipeline in the circumferential direction of the PE pipeline, the flexible water stop strip comprises a fixing part, an inclined water stop part and a vertical water stop part, the fixing part of the flexible water stop strip makes contact with the outer wall of the PE pipeline, the far end of the inclined water stop part stretches out in the direction close to a concrete inspection well, and the vertical water stop part stretches out in the direction close to the concrete inspection well. The distance between the inclined water stop part and the outer wall of the PE pipeline is gradually increased, the vertical water stop part is located on the upper side of the far end of the inclined water stop part, the fixing hoop is bound to the outer wall of the fixing part of the flexible water stop strip, so that the fixing part of the flexible water stop strip and the outer wall of the PE pipeline are sealed, and the concrete base is poured at the joint between the PE pipeline and the concrete inspection well. The concrete base completely wraps the flexible water stop strip and the fixing hoop. According to the connecting structure, effective sealing between the PE pipeline and the concrete inspection well is achieved through the special structural design of the flexible water stop strip and the fastening effect of the fixing hoop.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connecting technical field, especially a connecting structure of PE pipeline and concrete inspection well. BACKGROUND

[0002] In municipal engineering, PE (polyethylene) pipeline is widely used due to its good corrosion resistance, flexibility and long service life. However, at the connection between PE pipeline and concrete inspection well, due to the problems of different materials, thermal expansion coefficient difference and the like, leakage phenomenon is prone to occur. Although the traditional connecting mode such as rubber sealing ring can solve part of the problems, there are still defects such as unstable sealing property and easy aging in long-term use.

[0003] The patent with the application number CN200410053650.9 discloses a connecting method of pipeline branch pipe, and the features are as follows: the connecting method of main pipeline branch pipe comprises the following steps: a, prefabricate the pipeline connecting piece as a whole, and the connecting piece has a fixed part and a cylindrical part; b, use a hole opening machine to open a circular hole on the main pipeline or the well hole of the connected inspection well; c, then connect the pipeline connecting piece of the corresponding specification into the main pipeline or install the circular hole of the well hole of the connected inspection well with the connecting piece, and clean and roughen the contact surface; d, use fast high-strength adhesive to bond the hole and the contact surface of the connecting piece; and e, connect the branch pipe and the cylindrical part of the connecting piece.

[0004] However, the above patent technology cannot complete the connecting operation of PE pipeline and concrete inspection well, and also cannot solve the technical problems existing in the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a connecting structure of PE pipeline and concrete inspection well to solve the problems in the above background technology.

[0006] (1) how to design a connecting structure to realize stable and reliable connection between PE pipeline and concrete inspection well, and effectively prevent the occurrence of leakage phenomenon.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A connecting structure of PE pipeline and concrete inspection well;

[0009] The connecting structure of the PE pipeline and the concrete inspection well comprises a flexible waterstop, at least one fixing hoop and a concrete seat, the flexible waterstop is arranged around the outer wall of the PE pipeline along the circumferential direction of the PE pipeline, the flexible waterstop comprises a fixing part, an inclined waterstop part and a vertical waterstop part which are arranged in an integrated structure, the fixing part of the flexible waterstop is in contact with the outer wall of the PE pipeline, the distal end of the inclined waterstop part extends to the side close to the concrete inspection well, the distance between the inclined waterstop part and the outer wall of the PE pipeline gradually increases, and the vertical waterstop part is arranged on the upper side of the distal end of the inclined waterstop part, the fixing hoop is bound on the outer wall of the fixing part of the flexible waterstop, so that the fixing part of the flexible waterstop is sealed with the outer wall of the PE pipeline, and the concrete seat is poured at the connecting position between the PE pipeline and the concrete inspection well and completely wraps the flexible waterstop and the fixing hoop.

[0010] On the basis of the above technical scheme, the utility model further can make improvement as follows.

[0011] Further, the outer wall of the PE pipeline close to the concrete seat is provided with a plurality of grooves matched with the concrete seat, the grooves can increase the contact area between the PE pipeline and the concrete seat, and improve the stability and sealing property of the connection.

[0012] Further, the flexible waterstop is made of polyethylene material.

[0013] Further, the vertical waterstop part is provided with a waterstop protrusion extending away from the concrete inspection well.

[0014] After the structure is adopted, the fixing part is in close contact with the outer wall of the PE pipeline, the distal end of the inclined waterstop part extends to the side close to the concrete inspection well, the distance between the inclined waterstop part and the outer wall of the PE pipeline gradually increases, and a slope is formed to guide water flow, the waterstop protrusion is arranged on the upper side of the distal end of the inclined waterstop part and used for increasing the waterstop effect, the fixing hoop is fastened to form a sealing structure between the fixing part of the flexible waterstop and the outer wall of the PE pipeline, and the concrete seat is poured at the connecting position between the PE pipeline and the concrete inspection well and completely wraps the flexible waterstop and the fixing hoop, thereby forming a firm connecting structure.

[0015] The connecting structure of the utility model realizes the effective sealing between the PE pipeline and the concrete inspection well through the special structural design of the flexible waterstop and the fastening effect of the fixing hoop, and meanwhile, the wrapping effect of the concrete seat further enhances the stability and durability of the connecting structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the use state diagram of the connecting structure embodiment of the PE pipeline and the concrete inspection well.

[0017] Figure 2 is the sectional view of the schematic diagram of the flexible waterstop, the concrete seat and the PE pipeline in the connecting structure embodiment of the PE pipeline and the concrete inspection well.

[0018] Figure 3 is Figure 2 an enlarged view of

[0019] Explanation of the reference numerals in the drawings:

[0020] flexible waterstop - 100; fixing part - 110; oblique waterstop part - 120; vertical waterstop part - 130; waterstop protrusion - 131; fixing hoop binding - 200; concrete seat - 300; PE pipe - 400; groove - 410; concrete inspection well - 500. DETAILED DESCRIPTION

[0021] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the present application. The specific embodiments of the present application are described below.

[0022] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] Reference will now be made to Figures 1 to 3 .

[0025] The connecting structure of the PE pipe and the concrete inspection well comprises a flexible waterstop 100, two fixing hoops and a concrete seat 300.

[0026] The flexible waterstop 100 is wound around the outer wall of the PE pipe 400 along the circumferential direction of the PE pipe 400, and the flexible waterstop 100 comprises a fixed part 110, an inclined waterstop part 120 and a vertical waterstop part 130 in an integral structure, the fixed part 110 of the flexible waterstop 100 is in contact with the outer wall of the PE pipe 400, the distal end of the inclined waterstop part 120 extends towards the concrete inspection well 500, the distance between the inclined waterstop part 120 and the outer wall of the PE pipe 400 gradually increases, the vertical waterstop part 130 is located on the upper side of the distal end of the inclined waterstop part 120, and the vertical waterstop part 130 extends away from the concrete inspection well 500 and is provided with a waterstop protrusion 131.

[0027] The fixing hoop 200 is bound on the outer wall of the fixed part 110 of the flexible waterstop 100, so that the fixed part 110 of the flexible waterstop 100 is sealed with the outer wall of the PE pipe 400, the concrete seat 300 is poured at the connecting position between the PE pipe 400 and the concrete inspection well 500, and the concrete seat 300 completely wraps the flexible waterstop 100 and the fixing hoop.

[0028] The outer wall of the PE pipe 400 near the concrete seat 300 is provided with a plurality of grooves 410 matched with the concrete seat 300, and the flexible waterstop 100 is made of polyethylene.

[0029] In use, first, the flexible waterstop 100 is wound around the outer wall of the PE pipe 400 along the circumferential direction of the PE pipe 400, and the fixed part 110 is ensured to be in close contact with the outer wall of the PE pipe 400. Then, the outer wall of the fixed part 110 of the flexible waterstop 100 is fastened by using the fixing hoop, so that a sealed structure is formed between the fixed part 110 and the outer wall of the PE pipe 400. Next, the concrete seat 300 is poured at the connecting position between the PE pipe 400 and the concrete inspection well 500, and the concrete seat 300 is ensured to completely wrap the flexible waterstop 100 and the fixing hoop. Finally, after the concrete seat 300 is solidified, the connection between the PE pipe 400 and the concrete inspection well 500 is completed. The leakage problem of the contact surface between the concrete inspection well 500 and the PE pipe can be effectively solved.

[0030] The above only describes one embodiment of the present application, and it should be pointed out that, for ordinary skilled persons in the art, without departing from the principle of the present application, a number of modifications and improvements can be made, which should be regarded as falling within the protection scope of the present application.

Claims

1. A connecting structure of PE pipe and concrete inspection well, characterized in that: it comprises a flexible waterstop (100), at least one fixing hoop and a concrete seat (300), the flexible waterstop (100) is wound around the outer wall of the PE pipe (400) along the circumferential direction of the PE pipe (400), the flexible waterstop (100) comprises a fixing part (110), an oblique waterstop part (120) and a vertical waterstop part (130) in an integrated structure, the fixing part (110) of the flexible waterstop (100) is in contact with the outer wall of the PE pipe (400), the distal end of the oblique waterstop part (120) extends towards the concrete inspection well (500), the distance between the oblique waterstop part (120) and the outer wall of the PE pipe (400) gradually increases, the vertical waterstop part (130) is located on the upper side of the distal end of the oblique waterstop part (120), the fixing hoop is tied (200) on the outer wall of the fixing part (110) of the flexible waterstop (100), so that the fixing part (110) of the flexible waterstop (100) is sealed with the outer wall of the PE pipe (400), the concrete seat (300) is poured at the connecting part between the PE pipe (400) and the concrete inspection well (500), and the concrete seat (300) completely wraps the flexible waterstop (100) and the fixing hoop.

2. The connecting structure of PE pipe and concrete inspection well according to claim 1, characterized in that: a plurality of grooves (410) that can cooperate with the concrete seat (300) are formed on the outer wall of the PE pipe (400) near the concrete seat (300).

3. The connecting structure of PE pipe and concrete inspection well according to claim 1, characterized in that: the flexible waterstop (100) is made of polyethylene material.

4. The connecting structure of PE pipe and concrete inspection well according to claim 1, characterized in that: the vertical waterstop part (130) extends away from the concrete inspection well (500) and has a waterstop protrusion (131). ​ ​ ​ ​

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