Rainwater collecting pipeline capable of preventing reverse pollution

Abstract

The utility model discloses an anti-reverse-pollution rainwater collecting pipeline, a transverse shaft is fixed in a pipe body, an anti-reverse-pollution assembly is arranged on the transverse shaft, the anti-reverse-pollution assembly comprises a torsion spring and two waterproof plates, the torsion spring is sleeved on the transverse shaft in an escaping mode, two end portions of the torsion spring are respectively provided with an extension rod, and the extension rods are connected with the two waterproof plates. The waterproof plates are fixedly connected with the extension rods, the shapes of the edges of the two waterproof plates are matched with the inner side wall of the pipe body, the two waterproof plates form an included angle smaller than a flat angle, the included angle faces one end opening of the pipe body, two flow uniformizing plates are fixed in the pipe body, and the two flow uniformizing plates are arranged in the pipe body. The flow uniformizing plate is located on the opposite side of the included angle of the two waterproof plates, a plurality of flow uniformizing holes are formed in the flow uniformizing plate, the impulse of sewage is consumed when reverse pollution occurs in the pipeline, pipeline breakage caused by too large pressure in the pipeline is avoided, and the sewage is prevented from flowing out of the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline anti-backpollution, in particular to an anti-backpollution rainwater collection pipeline. Background Art

[0002] The first problem to be solved in building a sponge city is rainwater collection. There are three main ways to collect rainwater in sponge city construction: rooftop rainwater collection, surface runoff collection, and urban green space retention. Among them, rainwater collection pipes are pipes that collect natural rainwater from the ground, i.e. surface runoff, and transport it to natural water bodies.

[0003] Since natural rainwater contains more impurities after flowing to the ground, when the surface runoff flow is large, sewage backflow may occasionally occur during the process of being transported to natural water bodies through rainwater collection pipes. Utility Model Content

[0004] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiment of the utility model is to provide a rainwater collection pipe that is anti-backflow, which consumes the impulse of sewage when backflow occurs in the pipe, avoids excessive pressure in the pipe causing the pipe to rupture, and prevents sewage from backflowing out of the pipe.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an anti-backpollution rainwater collection pipe, a transverse axis is fixed in the pipe body, an anti-backpollution component is arranged on the transverse axis, the anti-backpollution component comprises a torsion spring and two waterproof plates, the torsion spring is sleeved on the transverse axis, both ends of the torsion spring are provided with extension rods, the waterproof plates are fixedly connected to the extension rods, the shapes of the edges of the two waterproof plates are matched with the inner wall of the pipe body, and the two waterproof plates form an angle smaller than a straight angle, and the angle is toward one of the ports of the pipe body.

[0006] Furthermore, two flow equalizer plates are fixed in the tube body, and the flow equalizer plates are located on the opposite side of the angle between the two waterproof plates, and a plurality of flow equalizer holes are opened on the flow equalizer plates.

[0007] Furthermore, an annular boss 1 is fixed in the tube body, and the annular boss 1 is located on the side of the flow equalizer away from the anti-backfouling component. A conical groove is provided on the side of the annular boss 1 close to the flow equalizer, and a through hole is provided on the side of the annular boss 1 away from the flow equalizer, and the interior of the conical groove is connected to the through hole.

[0008] Furthermore, a float is provided between the annular boss 1 and the flow equalizer plate, and the interior of the float is hollow.

[0009] Furthermore, an annular boss 2 is provided on the outer side walls at both ends of the tube body.

[0010] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0011] 1. When sewage in the rainwater collection pipe flows upward, the pressure from the pipe body first acts on the anti-backflow component, the waterproof plate moves upward under pressure, the extension rods on both sides of the torsion spring open upward, and the waterproof plate abuts against the inner wall of the pipe body, so that the gap inside the pipe body for sewage to flow is reduced, part of the pressure of the sewage is consumed, and the flow rate of the sewage is slowed down. The sewage with slowed flow rate passes through the flow holes on the two flow equalizers, and the flow holes convert the sewage from disordered rectification to uniform beam flow, which can balance the flow state of the sewage to a certain extent, balance the pressure of the sewage impacting the inner wall of the pipe body, and consume the impulse of the sewage when backflow occurs in the rainwater collection pipe, so as to avoid excessive pressure in the pipe and cause the rainwater collection pipe to rupture;

[0012] 2. As the sewage continues to flow upward, the float moves upstream and is blocked in the conical groove, preventing the sewage from flowing upward from the pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] In the figure:

[0015] Figure 1 It is a three-dimensional schematic diagram of the rainwater collection pipe in the utility model;

[0016] Figure 2 yes Figure 1 A cross-sectional view of a rainwater collection pipe in FIG.

[0017] Figure 3 yes Figure 1 A three-dimensional schematic diagram of an anti-fouling component in FIG.

[0018] Figure 4 yes Figure 1 An exploded view of the anti-fouling component in FIG.

[0019] In the figure:

[0020] 1. Pipe body;

[0021] 11. transverse axis; 12. flow equalizer; 13. annular boss 1; 14. floating ball; 15. annular boss 2;

[0022] 120. Uniform flow hole;

[0023] 1301, tapered groove; 1302, through hole;

[0024] 2. Anti-fouling components;

[0025] 21. Torsion spring; 22. Waterproof board;

[0026] 211. Extension rod. DETAILED DESCRIPTION

[0027] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0028] See also Figure 1-4 The utility model provides a technical solution: a rainwater collection pipe that prevents back-pollution, a transverse shaft 11 is fixed in the pipe body 1,

[0029] Two flow equalizer plates 12 are fixed in the tube body 1 . The flow equalizer plates 12 are located at the opposite side of the angle between the two waterproof plates 22 . A plurality of flow equalizer holes 120 are formed on the flow equalizer plates 12 .

[0030] An annular boss 13 is fixed inside the tube body 1, and the annular boss 13 is located on the side of the flow equalizer 12 away from the anti-backfouling component 2. A conical groove 1301 is provided on the side of the annular boss 13 close to the flow equalizer 12, and a through hole 1302 is provided on the side of the annular boss 13 away from the flow equalizer 12, and the interior of the conical groove 1301 is connected to the through hole 1302.

[0031] A float 14 is provided between the annular boss 13 and the flow equalizer 12, and the interior of the float 14 is hollow.

[0032] Annular bosses 15 are provided on the outer side walls at both ends of the tube body 1 .

[0033] An anti-reverse pollution component 2 is provided on the transverse shaft 11, and the anti-reverse pollution component 2 includes a torsion spring 21 and two waterproof plates 22. The torsion spring 21 is sleeved on the transverse shaft 11, and both ends of the torsion spring 21 are provided with extension rods 211. The waterproof plates 22 are fixedly connected to the extension rods 211. The shapes of the edges of the two waterproof plates 22 are matched with the inner wall of the tube body 1, and the two waterproof plates 22 form an angle smaller than a right angle, and the angle is toward one of the ports of the tube body 1.

[0034] When sewage in the rainwater collection pipe flows upward, the pressure from the pipe body 1 first acts on the anti-backpollution component 2, and the waterproof plate 22 moves upward under pressure. The extension rods 211 on both sides of the torsion spring open upward, and the waterproof plate 22 abuts against the inner wall of the pipe body 1, so that the gap inside the pipe body 1 that can be used for sewage circulation is reduced, and a part of the pressure of the sewage is consumed, so that the flow rate of the sewage is slowed down. The sewage with slowed flow rate passes through the flow holes 120 on the two flow equalizers 12, and the flow holes convert the sewage from disordered rectification to uniform beam flow, which can balance the flow state of the sewage to a certain extent, and balance the pressure of the sewage impacting the inner wall of the pipe body 1. When backpollution occurs in the rainwater collection pipe, the impulse of the sewage is consumed to avoid excessive pressure in the pipe and cause the rainwater collection pipe to rupture.

[0035] As the sewage continues to flow upward, the float 14 flows upstream and is blocked in the conical groove 1301 , thereby preventing the sewage from flowing upward from the pipe body 1 .

[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A rainwater collection pipe for preventing back-pollution, comprising a pipe body (1), characterized in that: A transverse axis is fixed in the tube body, and an anti-backpollution component is arranged on the transverse axis. The anti-backpollution component includes a torsion spring and two waterproof plates. The torsion spring is sleeved on the transverse axis, and extension rods are arranged at both ends of the torsion spring. The waterproof plates are fixedly connected to the extension rods. The shapes of the edges of the two waterproof plates are matched with the inner wall of the tube body, and the two waterproof plates form an angle smaller than a straight angle, and the angle is toward one of the ports of the tube body.

2. The anti-back-fouling rainwater collection pipe according to claim 1, characterized in that: Two flow equalizer plates are fixed in the tube body, and the flow equalizer plates are located on the opposite side of the angle between the two waterproof plates, and a plurality of flow equalizer holes are opened on the flow equalizer plates.

3. The anti-back-fouling rainwater collection pipe according to claim 2, characterized in that: An annular boss 1 is fixed in the tube body, and the annular boss 1 is located on the side of the flow equalizer away from the anti-backfouling component. A conical groove is provided on the side of the annular boss 1 close to the flow equalizer, and a through hole is provided on the side of the annular boss 1 away from the flow equalizer, and the interior of the conical groove is connected to the through hole.

4. The anti-back-fouling rainwater collection pipe according to claim 3, characterized in that: A floating ball is arranged between the annular boss 1 and the flow equalizer plate, and the interior of the floating ball is arranged to be hollow.

5. The anti-back-fouling rainwater collection pipe according to claim 1, characterized in that: The outer side walls at both ends of the tube body are provided with an annular boss 2.

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