Municipal drainage pipe

Abstract

The municipal drainage pipe comprises a pipe body and a round blocking net, a round installation groove is formed in a drainage opening of the pipe body, an annular limiting table used for installing the blocking net is formed between the groove bottom of the installation groove and the inner wall of a tank body, and the diameter of the annular limiting table is larger than the inner diameter of the pipe body and smaller than the outer diameter of the tank body; the blocking net is arranged in the installation groove, a limiting piece is arranged on the pipe body, the limiting piece is arranged on the side, away from the annular limiting table, of the blocking net, and the limiting piece is matched with the annular limiting table to limit axial displacement of the blocking net. Due to the fact that the detachable blocking net is arranged at the water outlet of the pipe body, the water outlet can be cleaned quickly after the blocking net is detached when the water outlet is blocked, and meanwhile the blocking net can be replaced after losing efficacy.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, in particular to a municipal drainage pipe. Background Art

[0002] Municipal drainage pipes usually refer to pipes buried under municipal roads for discharging sewage or rainwater. Among them, the pipes for discharging rainwater are an important structure to ensure that the area above the road is free from water accumulation.

[0003] The outlet of the rainwater drainage pipe is directly connected to the urban river. In order to prevent people or animals from entering the drainage pipe through the outlet, a screen is usually set at the outlet. The existing screen is fixed at the outlet. If the outlet is blocked by garbage washed by rainwater, it is very troublesome to clear the slag. Secondly, the screen is generally made of metal materials. After long-term use, the screen will be corroded. The corroded screen will fail because it cannot be replaced. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a municipal drainage pipe. By arranging a detachable screen at the drainage outlet of the pipe body, the screen can be removed to quickly clean the drainage outlet when blocked, and the screen can be replaced after it becomes ineffective.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A municipal drainage pipe comprises a pipe body and a circular screen, wherein the drainage port of the pipe body is provided with a circular installation groove, and an annular stopper for installing the screen is formed between the bottom of the installation groove and the inner wall of the tank body, wherein the diameter of the annular stopper is larger than the inner diameter of the pipe body and smaller than the outer diameter of the tank body;

[0007] The blocking net is arranged in the installation groove, and a limiting member is provided on the pipe body. The limiting member is arranged on the side of the blocking net away from the annular limiting platform, and the limiting member cooperates with the annular limiting platform to limit the axial displacement of the blocking net.

[0008] Furthermore, the barrier net includes a connecting ring and a chord column arranged on the inner wall of the connecting ring.

[0009] Furthermore, the connecting ring and the chord column are an integrated structure.

[0010] Furthermore, the connecting ring and the chord column are made of stainless steel or concrete.

[0011] Furthermore, the tube body is provided with a mounting hole for mounting the limiter, and the mounting hole is communicated with the mounting groove;

[0012] The limiting member comprises a bolt and a nut. The bolt passes through the mounting hole and extends to a side of the barrier away from the annular limiting platform. The nut is threadedly connected to the bolt.

[0013] Furthermore, the mounting hole is a circular through hole.

[0014] Furthermore, the mounting hole is a threaded hole.

[0015] Furthermore, a limit block is provided between the nut and the inner wall of the tube body, the limit block is arranged outside the bolt, and the limit block abuts against one surface of the far annular limit platform of the barrier net.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides a detachable blocking net at the drain outlet of the pipe body, so that the blocking net can be removed to quickly clean the drain outlet when blocked, and the blocking net can be replaced after it becomes ineffective. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a municipal drainage pipe in an embodiment of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of a municipal drainage pipe after it is cut open;

[0020] Figure 3 This is a cross-sectional view of a municipal sewer pipe;

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of the local A in the middle;

[0022] In the figure, 1, pipe body; 2, blocking net; 3, annular limit platform; 4, limit piece; 5, connecting ring; 6, chord column; 7, bolt; 8, nut; 9, limit block. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments to clearly and completely describe the technical solution 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 those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] Embodiment 1:

[0026] like Figure 1-Figure 4As shown, a municipal drainage pipe comprises a pipe body 1 and a circular screen 2, wherein the drainage port of the pipe body 1 is provided with a circular mounting groove, and an annular stopper 3 for mounting the screen 2 is formed between the bottom of the mounting groove and the inner wall of the tank body, wherein the diameter of the annular stopper 3 is larger than the inner diameter of the pipe body 1 and smaller than the outer diameter of the tank body;

[0027] The blocking net 2 is arranged in the installation groove, and a limiter 4 is provided on the pipe body 1. The limiter 4 is arranged on the side of the blocking net 2 away from the annular limiter 3. The limiter 4 cooperates with the annular limiter 3 to limit the axial displacement of the blocking net 2.

[0028] The barrier net 2 includes a connecting ring 5 and a chord column 6 arranged on the inner wall of the connecting ring 5 .

[0029] The connecting ring 5 and the chord post 6 are an integrated structure.

[0030] The connecting ring 5 and the chord column 6 are made of stainless steel or concrete

[0031] The tube body 1 is provided with a mounting hole for mounting the position-limiting member 4, and the mounting hole is communicated with the mounting groove;

[0032] The limiting member 4 includes a bolt 7 and a nut 8. The bolt 7 passes through the mounting hole and extends to a side of the barrier 2 away from the annular limiting platform 3. The nut 8 is threadedly connected to the bolt 7.

[0033] The mounting hole is a circular through hole.

[0034] The pipe body 1 is cast by cement and is a prefabricated structure; a mounting hole is reserved during the forming process of the pipe body 1.

[0035] Working principle: (1) Before installing the barrier net 2, separate the bolt 7 and nut 8 and remove the bolt 7.

[0036] (2) Install the blocking net 2 into the limiting groove, and make the end surface of the connecting ring 5 abut against the annular limiting platform 3. The annular limiting platform 3 is used to position the blocking net 2 and cooperate with the limiting member 4 to limit the axial position of the blocking net 2.

[0037] (3) After the net 2 is installed in place, the bolt 7 is passed through the installation hole and tightened by the nut 8 (the head of the bolt 7 is located outside the tube body 1), so that the bolt 7 limits the side of the net 2 away from the limit platform. The net 2 is limited by the inner wall of the tube body 1 in the circumferential direction. At this time, the net 2 is fixed in the installation groove and cannot be removed.

[0038] The utility model provides a detachable blocking net 2 at the drain outlet of the pipe body 1. When the drain outlet is blocked, the blocking net 2 can be removed to quickly clean the drain outlet. The blocking net 2 can be replaced after it becomes ineffective.

[0039] Furthermore, if Figure 2and Figure 4 As shown, a stopper 9 is provided between the nut 8 and the inner wall of the tube body 1, and the stopper 9 is arranged outside the bolt 7, and the stopper 9 abuts against a surface of the far annular stopper 3 of the blocking net 2 (connecting ring 5). The stopper 9 can be a cylinder or a cube, and the present embodiment is a cube, so that the contact area between the stopper 9 and the blocking net 2 can be increased, and the limiting effect of the stopper 9 can be improved.

[0040] In this embodiment, the limit block 9 is a cubic structure, and a through hole is provided on the limit block 9. The diameter of the through hole is larger than the bolt 7, and the bolt 7 penetrates into the limit block 9 through the through hole.

[0041] One of the surfaces of the limit block 9 abuts against the annular limit platform 3 to achieve complete tightening of the barrier net 2, avoiding the problem of a gap between the barrier net 2 and the bolt 7, and the problem of single-point force on the bolt 7 when the barrier net 2 tilts during water impact.

[0042] Embodiment 2:

[0043] The difference between this embodiment and embodiment 1 is that the mounting hole is a threaded hole, and the bolt is directly threaded in the threaded hole.

[0044] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A municipal drainage pipe, comprising a pipe body and a circular screen, characterized in that: The drain outlet of the pipe body is provided with a circular installation groove, and an annular stopper for installing the blocking net is formed between the bottom of the installation groove and the inner wall of the tank body, and the diameter of the annular stopper is larger than the inner diameter of the pipe body and smaller than the outer diameter of the tank body; The blocking net is arranged in the installation groove, and a limiting member is provided on the pipe body. The limiting member is arranged on the side of the blocking net away from the annular limiting platform, and the limiting member cooperates with the annular limiting platform to limit the axial displacement of the blocking net.

2. The municipal drainage pipe according to claim 1, characterized in that: The barrier net comprises a connecting ring and a chord column arranged on the inner wall of the connecting ring.

3. The municipal drainage pipe according to claim 2, characterized in that: The connecting ring and the chord column are an integrated structure.

4. The municipal drainage pipe according to claim 3, characterized in that: The connecting ring and the chord column are made of stainless steel or concrete.

5. The municipal drainage pipe according to any one of claims 1 to 4, characterized in that: The tube body is provided with a mounting hole for mounting the limiter, and the mounting hole is communicated with the mounting groove; The limiting member comprises a bolt and a nut. The bolt passes through the mounting hole and extends to a side of the barrier away from the annular limiting platform. The nut is threadedly connected to the bolt.

6. The municipal drainage pipe according to claim 5, characterized in that: The mounting hole is a circular through hole.

7. The municipal drainage pipe according to claim 5, characterized in that: The mounting hole is a threaded hole.

8. The municipal drainage pipe according to claim 6 or 7, characterized in that: A limit block is provided between the nut and the inner wall of the tube body, the limit block is arranged outside the bolt, and the limit block abuts against one side of the far annular limit platform of the barrier net.

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