Siphon eliminating device of direct drainage roof drain

Abstract

A siphon eliminating device of a direct drainage roof drain comprises a fixing disc, and a supporting device is arranged at the bottom of the fixing disc; an air guide pipeline is arranged in the middle of the fixing disc, the top of the air guide pipeline is exposed out of the water surface, and the bottom of the air guide pipeline is inserted into the rainwater pipeline. The air guiding device is installed at a rainwater inlet in the upper side of a rainwater hopper, the bottom of the air guiding pipeline is inserted into a rainwater pipeline, so that air in air can enter a rainwater pipe, the siphon state can be effectively eliminated in time, indoor water inflow accidents caused by siphon deformation and burst of the rainwater pipe are prevented, and therefore social property losses are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to building roof rainwater drainage system technical field, concretely relates to a siphon elimination device of direct drainage rainwater bucket. BACKGROUND

[0002] Gravity flow drainage system is the traditional roof drainage mode, and the commonly used gravity flow drainage system is used for high-rise building roof rainwater drainage as shown in the figure. Figure 1 It has the characteristics of simple design and construction, safe and reliable operation.

[0003] Rainwater is collected by roof gutter and discharged by gravity flow through the vertical pipe connected with the rainwater bucket. When the gravity flow direct drainage rainwater bucket encounters the situation of rainwater exceeding the design standard or the inlet being blocked by sundries, the water quantity of the rainwater inlet will rise, and with the increase of the depth of roof rainwater, the roof rainwater will flood the inlet of these rainwater buckets, preventing air from entering the rainwater drainage pipeline, causing siphon effect, and the internal air pressure of the rainwater pipe becomes smaller, resulting in deformation of the rainwater pipe caused by air pressure. CONTENT OF THE UTILITY MODEL

[0004] In view of the technical problem that the water quantity of the rainwater inlet rises, floods the inlet of the rainwater bucket, and air cannot enter the rainwater drainage pipeline, causing siphon effect, the technical scheme provides a siphon elimination device of direct drainage rainwater bucket.

[0005] The utility model realizes the following technical scheme:

[0006] A siphon elimination device of direct drainage rainwater bucket, comprising: a fixed disc, the bottom of the fixed disc is provided with a supporting device; the middle part of the fixed disc is provided with a gas guide pipeline, the top of the gas guide pipeline is exposed to the water surface, and the bottom of the gas guide pipeline is inserted into the rainwater pipeline.

[0007] Further, the size of the fixed disc is greater than the size of the top of the rainwater bucket in the rainwater drainage system, and the thickness of the fixed disc is greater than or equal to 0.2cm; the supporting device at the bottom comprises a plurality of supporting legs fixedly installed at the edge position of the fixed disc, and the plurality of supporting legs are evenly distributed at the edge of the fixed disc.

[0008] Further, the height of the supporting leg is greater than the height from the building roof to the top of the rainwater bucket in the rainwater drainage system.

[0009] Further, the diameter of the air guide pipe is greater than or equal to 3 cm; the length of the air guide pipe inserted into the rainwater pipe is greater than or equal to 40 cm, and the length of the air guide pipe on the upper side of the fixing disc is greater than the height from the top surface of the fixing disc to the water surface.

[0010] Further, the air guide pipe is detachably fixed and installed at the center of the fixing disc through the fixing device. Advantages

[0011] Compared with the prior art, the siphon elimination device of the direct drainage rainwater bucket has the following advantages:

[0012] The bottom of the air guide pipe is inserted into the rainwater pipe, so that the gas in the air can enter the rainwater pipe, the siphon state can be effectively eliminated in time, the deformation and burst of the rainwater pipe due to the siphon are prevented, indoor water inlet accidents are avoided, and social property loss is reduced.

[0013] In use, the air guide pipe is inserted into the rainwater pipe, and the fixing disc is placed on the upper side of the rainwater bucket, so that the device can be directly used, the device can be directly placed in the roof rainwater inlet, and the operation mode is effective.

[0014] The air guide pipe in the technical solution is detachably fixed and installed at the center of the fixing disc through the fixing device, so that the air guide pipe is convenient to replace, and the air guide pipe with a suitable size can be selected according to the rainwater depth. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The existing gravity flow drainage system structure in the background art.

[0016] Figure 2 The overall structure schematic view of the utility model.

[0017] Figure 3 The use state schematic view of the utility model.

[0018] The marks in the drawings are: 1- flow guide cover, 2- flow guide cover fixing bolt, 3- rainwater inlet, 4- building roof, 5- rainwater pipe, 51- rainwater bucket, 6- siphon elimination device, 61- fixing disc, 62- air guide pipe, 63- supporting leg, 64- fixing piece. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. The described embodiments are only some of the embodiments of the utility model, rather than all the embodiments. Without departing from the design concept of the utility model, various modifications and improvements to the technical solutions of the utility model made by those skilled in the art shall fall within the protection scope of the utility model. Embodiments

[0020] As Figure 2 shown, a siphon elimination device of a straight rainwater bucket, comprising: a fixed disc 61, the bottom of the fixed disc 61 is provided with a supporting device; the middle part of the fixed disc 61 is provided with a gas guide pipeline 62, the top of the gas guide pipeline 62 on the upper side of the fixed disc 61 is exposed to the water surface, and the bottom of the gas guide pipeline 62 on the lower side of the fixed disc 61 is inserted into a rainwater pipeline 5.

[0021] The size of the fixed disc 61 is greater than the size of the top of the rainwater bucket 51 in the rainwater drainage system, and the thickness of the fixed disc 61 is greater than or equal to 0.2 cm; the supporting device at the bottom comprises a plurality of supporting legs 63 fixedly installed at the edge position of the fixed disc 61, and the plurality of supporting legs 63 are uniformly distributed at the edge of the fixed disc 61; the height of the supporting leg 63 is greater than the height from the building roof to the top of the rainwater bucket 51 in the rainwater drainage system.

[0022] The gas guide pipeline 62 is detachably fixedly installed at the center position of the fixed disc 61 through a fixing piece 64; the diameter of the gas guide pipeline 62 is greater than or equal to 3 cm; the length of the gas guide pipeline 62 inserted into the rainwater pipeline 5 is greater than or equal to 40 cm, and the length of the gas guide pipeline 62 on the upper side of the fixed disc 61 is greater than the height from the top surface of the fixed disc 61 to the rainwater surface.

[0023] The fixed disc 61 in the embodiment is a circular fixed disc 61 with a diameter of 30 cm made of PVC material, and the thickness is 0.2 cm. A center hole penetrating through the fixed disc 61 is arranged at the center position of the circular fixed disc 61, a nut is fixed in the center hole through glue, or an inner thread is directly arranged on the inner wall of the center hole.

[0024] The gas guide pipeline 62 is detachably fixedly installed at the center hole through a thread, the gas guide pipeline 62 is a circular pipeline made of PVC material, and the inner diameter of the circular pipeline is 3 cm. The length of the gas guide pipeline 62 on the upper side of the fixed disc 61 is greater than or equal to 20 cm, so that the top of the gas guide pipeline 62 is 10 cm above the water surface height in the best state. The length of the gas guide pipeline 62 on the lower side of the fixed disc 61 is greater than or equal to 50 cm, so that the gas guide pipeline 62 below is inserted into the rainwater pipeline 5 by more than 40 cm, so that the top of the gas guide pipeline 62 can still effectively suck air after the water level rises.

[0025] The air guide pipe 62 is fixed at the fixed position of the fixed disc 61, and is fixed and installed by glue, and the fixed part 64 is matched with the nut in size, and the outer layer of the fixed part 64 is provided with an outer thread matched with the nut. Alternatively, the air guide pipe 62 is fixed at the fixed position of the fixed disc 61, and an outer thread matched with the inner thread of the central hole is directly arranged on the outer wall of the air guide pipe 62.

[0026] When the air guide pipe 62 is installed on the fixed disc 61, the bottom of the air guide pipe 62 is passed through the nut or the central hole at the center of the fixed disc 61, and when the fixed position is encountered, the air guide pipe 62 is rotated again, so that the thread on the air guide pipe 62 is clamped and fixed with the thread on the fixed disc 61.

[0027] The fixing mode of the air guide pipe 62 and the fixed disc 61 can also be other matched fixing parts, and the fixing parts capable of realizing detachable fixing of the two, such as buckles, fixing pins and the like, can be used here.

[0028] At least three supporting legs 63 are fixed at the edge of the circular fixed disc, and the length of the supporting leg 63 is 10 cm. In order to consider the cost performance and the stability of the circular fixed disc, three supporting legs integrated with the circular fixed disc are adopted in the embodiment. The three supporting legs are uniformly distributed at the edge of the circular fixed disc.

[0029] Method for use: when the siphon elimination device of the embodiment is used, the depth of the rainwater is determined first, and the air guide pipe 62 with a proper length is selected. Then, the fixing screw 62 on the flow guide cover 1 of the rainwater drainage system as shown in Figure 1 is removed, the flow guide cover 1 is removed, the air guide pipe 62 of the siphon elimination device 6 is inserted into the rainwater pipe 5, and the device naturally falls down due to the suction of the water inlet of the rainwater bucket 51, and the device is fixed above the rainwater bucket 51 due to the suction; and the top of the air guide pipe 62 is exposed to the water surface.

Claims

1. A siphon elimination device for a first flush rainwater head, comprising: The fixed disc (61) is provided with a support device at the bottom; characterized in that: a gas guide pipe (62) is arranged at the middle of the fixed disc (61), the top of the gas guide pipe (62) is exposed to the water surface, and the bottom of the gas guide pipe (62) is inserted into the rainwater pipe (5).

2. A siphoning elimination device for a first-flush rainwater head according to claim 1, wherein: The size of the fixed disc (61) is greater than that of the top of the rainwater gutter (51) in the rainwater drainage system, and the thickness of the fixed disc (61) is greater than or equal to 0.2 cm; the support device at the bottom comprises a plurality of support legs (63) fixedly installed at the edge positions of the fixed disc (61), and the plurality of support legs (63) are uniformly distributed at the edge of the fixed disc (61).

3. A siphoning elimination device for a first-flush rainwater head according to claim 2, wherein: The height of the support leg (63) is greater than the height from the building roof to the top of the rainwater gutter (51) in the rainwater drainage system.

4. A siphoning elimination device for a first-flush rainwater head according to claim 1, wherein: The diameter of the gas guide pipe (62) is greater than or equal to 3 cm; the length of the gas guide pipe (62) inserted into the rainwater pipe (5) is greater than or equal to 40 cm, and the length of the gas guide pipe (62) on the upper side of the fixed disc (61) is greater than the height from the top surface of the fixed disc (61) to the water surface.

5. A siphoning elimination device for a first-flush rainwater head according to claim 1, wherein: The gas guide pipe (62) is detachably fixedly installed at the center position of the fixed disc (61) through a fixing piece (64).

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