Self-acceleration drainage device

Abstract

The utility model relates to a self-acceleration drainage device, which comprises a water guide pipe communicated with a roof water collection position and used for entering roof rainwater; the bending pipe is a corrugated pipe, and one end of the bending pipe is butted with the water conduit; the flow guide pipe is a half pipe, the upper end of the half pipe is connected with the lower part of the bent pipe orifice, and a covering film is mounted on the surface of the half pipe; the sealing cover is installed at a lower end pipe opening of the rotating pipe, the upper end of the rotating pipe is connected with the upper end of the flow guide pipe through a pin shaft, the covering film is attached to the outer wall of the upper end of the rotating pipe in a sealed mode, a water drainage hole is formed in the lower side pipe wall of the rotating pipe, and a switch plate matched with the water drainage hole in a sealed mode is arranged on the water drainage hole; the switch plate is further provided with an ejection block used for ejecting the switch plate open, and the ejection block is arranged at the bottom of the flow guide pipe. The flow guide pipe is repeatedly extruded through the rotating pipe, on one hand, air in the pipe is exhausted, and noise of a drainage system is reduced; on the other hand, the flow guide pipe sucks upper water, and the discharging speed is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building drainage technical field, concretely relates to a roof rainwater drainage device. BACKGROUND

[0002] The city coverage rate of our country is higher and higher, and the urban runoff flow is large. In the runoff, the roof runoff point cannot be ignored, and the rainwater ash will corrode the roof structure on the building roof, which is a great test for the performance of the building roof waterproof. In order to control the roof rainwater, the existing technology commonly uses the gravity type rainwater drainage system disclosed in the Chinese patent application, the application number of which is CN201010532378.8, the application date is January 1, 2010, and the publication number is CN102465544A.

[0003] The specific structure of the runoff system includes that a rainwater drainage system needs to be arranged in the later stage of the building, the rainwater drainage system includes a downspout precast on the roof, a rainwater hopper is installed on the lower side of the downspout, a drainage pipe is connected to the lower end of the rainwater hopper, and the drainage pipe is attached to the building external structure and extends to the ground. The rainwater falling on the roof is collected to the downspout and discharged outside the roof, and is discharged to the pit through the rainwater hopper and the drainage pipe.

[0004] The roof rainwater drainage system mainly uses the gravity of rainwater to flow and discharge, and its defects are as follows: first, the water flow carries air into the whole rainwater drainage system, when the flow is small, the air occupies 70% of the pipeline air, and when the flow is large, the air also occupies about 30% of the space in the pipeline. In the gravity drainage system, the mixed air in the pipeline can cause the following problems: 1) the drainage efficiency is reduced, the air occupies the space in the pipeline, the water cross section is reduced, the water flow speed is thus reduced, and the drainage time is prolonged. For example, in the high-rise building drainage, if there is much air in the pipeline, the sewage discharge time will be obviously increased. 2) the air can produce fluctuation and impact under the action of water flow, which can cause the pipeline to vibrate and emit uncomfortable noise. 3) the air accumulates in the pipeline to form an air plug, which can increase the local pressure and possibly cause the pipeline system pressure to be abnormal. For some pipeline interfaces with poor sealing performance, leakage can occur, and the pressure change can also affect the stability of the whole drainage system. Second, the suspended pipe section of the drainage pipe must have a certain slope, otherwise water accumulation in the pipeline will occur, the water accumulation will have an odor or long water moss to block the pipeline. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems that the existing roof rainwater drainage system has much air in the pipeline, loud noise and poor drainage speed.

[0006] The utility model solves the technical problems that the existing roof rainwater drainage system has much air in the pipeline, loud noise and poor drainage speed.

[0007] The utility model provides an automatic acceleration type drainage device, including water conduit, elbow pipe and guide pipe, water conduit, with roof water collection position is open, is used for leading in roof rainwater, elbow pipe is bellows, and one end is butt joint with water conduit, and guide pipe is half pipe, and the upper end of half pipe is connected with the lower part of elbow pipe pipe orifice, and the surface of half pipe is installed film, and the upper end of sealingly fitting in the outer wall of rotating pipe of the film is equipped with the sealing cover of the lower end pipe orifice of rotating pipe, and the lower side pipe wall of rotating pipe is equipped with the drain hole, and the switch plate of sealed cooperation of drain hole is equipped on the drain hole, and the upper end of switch plate is connected with the inner wall of rotating pipe through the pin shaft, and the lower end of switch plate is equipped with the second spiral spring that it is pressed on the drain hole, and switch plate is still equipped with the top block that is used for unblocking switch plate, and the top block is arranged in the bottom of guide pipe.

[0008] Compared with the prior art, the utility model has the beneficial effects that:

[0009] The utility model discloses a rainwater drainage drive rotating pipe, and the rotating pipe repeatedly extrudes the guide pipe, on the one hand, the extrusion action makes the pipe above the guide pipe accumulate rainwater and remove air when compressing the guide pipe, reduces the air in the drainage system and reduces noise, and on the other hand, the repeated extrusion action makes the guide pipe have suction capacity and accelerates the upper water, improving the drainage speed.

[0010] As preferred, the further technical scheme of the above structure is:

[0011] The switch plate and the drain hole are inclined surface cooperation.

[0012] The beneficial effects obtained from the above features are that this embodiment has a good circumferential limit and good tightness.

[0013] The lower end of the drain hole is provided with a stop block, and the lower surface of the switch plate is provided with a mortise, and the mortise is matched with the stop block.

[0014] The beneficial effects obtained from the above features are that this example restricts the amount of outward displacement of the switch plate through the length of the stop block, and the effectiveness can be guaranteed.

[0015] The top of the elbow pipe is provided with an arc-shaped mounting piece, the left end of the mounting piece is fixedly connected with the water conduit, the right end of the mounting piece is arranged above the rotating pipe, a first spiral spring is connected with the right end of the mounting piece, and the other end of the first spiral spring is connected with the top of the rotating pipe.

[0016] The beneficial effects obtained from the above features are that this embodiment guarantees the effective resetting of the rotating pipe after draining water.

[0017] The film is uniformly provided with micropores in the middle.

[0018] The beneficial effects obtained from the above features are that this example can conveniently drain the air in the guide pipe.

[0019] The arc length point of the switch plate rotates the circumference of the rotating pipe by one half to one third.

[0020] The beneficial effect obtained from the above features: this example makes the rotating pipe quickly empty the water under the premise of ensuring that both sides do not leak water.

[0021] The top block is a long bolt, the threaded end of which passes from the outer wall of the flow guide pipe to the inner wall of the flow guide pipe, the threaded end is installed with a nut, a sealing gasket is arranged between the nut and the inner wall of the flow guide pipe, and the length of the top block is half of the height of the flow guide pipe.

[0022] The beneficial effect obtained from the above features: this embodiment of the top block can effectively and timely open the rotating pipe to drain water. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the basic structure of the roof drainage system of the utility model;

[0024] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the flow guide pipe of the utility model;

[0026] Figure 4 It is a schematic diagram of the utility model when the film is compressed;

[0027] Figure 5 It is an embodiment structure of the top block of the utility model;

[0028] Figure 6 It is a schematic diagram of the cooperation structure of the rotating pipe and the flow guide pipe of the utility model;

[0029] Figure 7 It is a schematic diagram of the assembly structure of the rotating pipe and the flow guide pipe of the utility model;

[0030] Figure 8 It is embodiment 1 of the installation structure of the switch plate of the utility model;

[0031] Figure 9 It is embodiment 2 of the installation structure of the switch plate of the utility model.

[0032] In the drawing: 1, roof; 2, pressure flow rainwater gutter; 3, connecting pipe; 4, horizontal suspension pipe; 5, drainage pipe; 6, water guide pipe; 7, elbow pipe; 8, adapter pipe; 9, flow guide pipe; 10, film; 11, top block; 12, mounting piece; 13, first spiral spring; 14, rotating pipe; 141, large-diameter pipe body; 142, small-diameter pipe head; 143, connecting lug; 15, switch plate; 151, tongue and groove; 16, second spiral spring; 17, stop block; 18, pin shaft. DETAILED DESCRIPTION

[0033] The utility model is further described below in combination with the embodiments, and the purpose is only to better understand the content of the utility model, therefore, the example does not limit the protection scope of the utility model.

[0034] The device is installed in the existing roof drainage system, and the structure of the existing roof drainage system is shown in Figure 1 , the roof 1 is provided with a pressure flow rainwater collector 2, the lower end of the pressure flow rainwater collector 2 is connected with a connecting pipe 3, the lower end of each connecting pipe 3 is connected with a horizontal suspension pipe 4, the horizontal suspension pipe 4 is connected with a drainage pipe 5 extending downward along the outer wall of the building, and the drainage pipe 5 is connected with a ground water storage tank or a sewage pipe. The utility model is installed at the connection between the horizontal suspension pipe 4 and the drainage pipe 5, and replaces the inflection point, the water diversion pipe 6 replaces a section of the horizontal suspension pipe 4, and the flow guide pipe 9 replaces the drainage pipe 5.

[0035] Referring to Figures 2 to 5 , the utility model provides a self-accelerating type drainage device, adopts double-layer superposed drainage structure to realize accelerated drainage, and comprises a water diversion pipe 6, a bent pipe 7 and a flow guide pipe 9,

[0036] The water diversion pipe 6 is communicated with the water collecting position of the roof 1 and is used for introducing roof rainwater;

[0037] The bent pipe 7 is a corrugated pipe, one end of which is connected with the water diversion pipe 6;

[0038] The flow guide pipe 9 is a half pipe, the upper end of the half pipe is connected with the lower part of the pipe opening of the bent pipe 7, and a film 10 is mounted on the surface of the half pipe;

[0039] The water diversion pipe 6, the bent pipe 7 and the flow guide pipe 9 form a layer of drainage structure, and another layer of drainage structure is formed by a rotating pipe 14, so as to form a double-layer superposed drainage system,

[0040] The rotating pipe 14 is provided with a sealing cover at the lower end pipe opening, the upper end is connected with the upper end of the flow guide pipe 9 through a pin shaft 18, the upper end of the film 10 is sealingly attached to the outer wall of the rotating pipe 14, the lower side wall of the rotating pipe 14 is provided with a water leakage hole, the water leakage hole is provided with a switch plate 15 sealingly matched with the water leakage hole, the upper end of the switch plate 15 is pinned to the inner wall of the rotating pipe 14, and the lower end of the switch plate 15 is provided with a second spiral spring 16 for pressing the switch plate 15 on the water leakage hole, the switch plate 15 is further provided with a top block 11 for lifting the switch plate 15, and the top block 11 is arranged at the bottom of the flow guide pipe 9.

[0041] Referring to Figure 6 , Figure 7, the rotating pipe 14 includes a large-diameter pipe body 141 and a small-diameter pipe head 142 for rotationally connecting with the flow guide pipe 9, the large-diameter pipe body 141 is adapted to the flow guide pipe 9 with a difference of 5mm-10mm in diameter, so that it can be conveniently screwed into the flow guide pipe 9 and effectively extrude the flow passage of the flow guide pipe 9; the small-diameter pipe head 142 is oval, the transverse axis is equal to the large-diameter pipe body 141, and the longitudinal axis is half of the large-diameter pipe body 141, the small-diameter pipe head 142 is fixed with connecting ears 143 on both sides, and the connecting ears 143 are connected with the flow guide pipe 9 through the pin shaft 18.

[0042] The switch plate 15 corresponds to the valve plate of the rotating pipe 14, one end of the second spiral spring 16 is connected with the lower end of the switch plate 15, and the other end is connected with the inner wall of the rotating pipe 14, the second spiral spring 16 downwardly supports the switch plate 15 to make it closed; the top block 11 pushes the switch plate 15 to make it open, so as to realize the control of the water discharge of the rotating pipe 14. In order to prevent the switch plate 15 from turning out of the rotating pipe 14 under the action of gravity and the second spiral spring 16, optionally, referring to Figure 8 , the switch plate 15 is matched with the drain hole in a slope manner; optionally, referring to Figure 9 , the lower end of the drain hole is provided with a stop block 17, and the lower surface of the switch plate 15 is provided with a rebate 151 which is engaged with the stop block 17.

[0043] The bending pipe 7 is connected with the flow guide pipe 9 and the rotating pipe 14 which are stacked together, first, the joint should be sealed, and the joint can be kept sealed when the rotating pipe 14 rotates relative to the flow guide pipe 9, for example, the bending pipe 7 is connected with the flow guide pipe 9 and the rotating pipe 14 through the adapter pipe 8; second, the pipe opening of the bending pipe 7 and the adapter pipe 8 should have tensioning capacity, so that the rotating pipe 14 is reset by the elasticity of the pipe opening, of course, a reset member can also be used to ensure the effective lifting of the rotating pipe 14, for example, the top of the bending pipe 7 is provided with an arc-shaped mounting piece 12, the left end of the mounting piece 12 is fixedly connected with the water guide pipe 6, the right end is arranged above the rotating pipe 14, the right end of the mounting piece 12 is connected with the first spiral spring 13, and the other end of the first spiral spring 13 is connected with the upper side of the rotating pipe 14, the first spiral spring 13 is used to pull and connect the rotating pipe 14 to make it rotate upwardly.

[0044] Water flows into the flow guide pipe 9 and the rotating pipe 14 through the water guide pipe 6 and the bending pipe 7, the water entering the flow guide pipe 9 is discharged by itself, and the water entering the rotating pipe 14 is accumulated in the pipe cavity because the switch plate 15 is in a closed state; as the water quantity in the rotating pipe 14 increases and the gravity increases, the rotating pipe 14 rotates downwardly to press the film 10, so as to extrude the pipe cavity of the flow guide pipe 9. Through the arrangement of the rotating pipe 14, the stacked rotating pipe 14 can automatically rotate downwardly and lift up when rainwater is discharged, so as to repeatedly extrude the film 10 on the flow guide pipe 9.

[0045] The film 10 is an elastic rubber film, and when a large amount of water flows through the flow guide pipe 9, the film 10 expands outward under the pressure of the water, thereby increasing the water passing area. Further, the film 10 is uniformly provided with micropores in the middle. When the rotating pipe 14 rotates downward, the switch plate 15 is opened, which is beneficial to the water discharged to extrude the film 10. The gap between the rotating pipe 14 and the flow guide pipe 9 gradually increases from the upper end to the lower end, so that there is residual air in the flow guide pipe 9, and the air can be discharged from the micropores when the water extrudes the film 10. It should be noted that the water amount and water pressure of the roof 1 drainage are insufficient to cause the film 10 to be greatly stretched most of the time, so the micropores will not leak water during normal use.

[0046] The structure of the top block 11 is that the top block 11 is a long bolt, the threaded end of which penetrates from the outer wall of the flow guide pipe 9 to the inner wall of the flow guide pipe 9, the threaded end is provided with a nut, and a sealing gasket is arranged between the nut and the inner wall of the flow guide pipe 9. The length of the top block 11 is half of the height of the flow guide pipe 9. The arc length of the switch plate 15 is one-half to one-third of the circumference of the rotating pipe 14. When the water discharge hole of the rotating pipe 14 completely enters the flow guide pipe 9, the water is immediately discharged, and the water flow is discharged from the rotating pipe 14, so as to realize rapid drainage.

[0047] Working principle:

[0048] The device utilizes the height difference between the pressure rainwater bucket and the ground, so that the rainwater flows in the water guide pipe 6 to the flow guide pipe 9 by itself. The self-flowing rainwater contains a large amount of air. When the water flows into the flow guide pipe 9, it also flows into the rotating pipe 14. The water filled into the rotating pipe 14 becomes heavy, and the heavy rotating pipe 14 rotates downward to press the film 10, so that the film 10 cannot normally pass water. Although the top block 11 hits the switch plate 15 to open it at this time, the water can be discharged through the water discharge hole, the water passing amount of the overall drainage system is reduced at the position of the device, the self-flowing rainwater in the horizontally suspended pipe 4 is accumulated, so that the air in the rainwater is discharged. After the water in the rotating pipe 14 is discharged, the rotating pipe 14 becomes light and cannot overcome the pulling force of the first spiral spring 13, so as to be lifted up. The rotating pipe 14 is pulled up and stops extruding the film 10. After the film 10 is released from the extrusion, the pipe cavity of the flow guide pipe 9 quickly recovers, and the internal negative pressure is generated. The negative pressure and the water gravity in the bent pipe 7 act in the same direction, so that the water in the water guide pipe 6 quickly flows downward, thereby realizing the speed-up of the drainage speed. It should be noted that the negative pressure in the flow guide pipe 9 also has a suction force on the water at the lower end, but the suction force is opposite to the water gravity at the lower end, so the suction force mainly acts on the water on the upper side.

[0049] Advantages of the device:

[0050] 1) this scheme uses the rotating tube to produce extrusion to the guide tube to slow down the drainage speed, makes the water accumulate in the horizontal suspension tube, thereby discharging the air in the tube; 2) the guide tube is loosened by the rotating tube to produce negative pressure in the guide tube, the suction force is generated to the water by the negative pressure, the water is accelerated by the combined action of the suction force and the gravity of the water; 3) the drainage pipe of the scheme has the suction capacity, so that the suspension tube does not need to be necessarily installed with slope, can be attached to the lower surface of the building cornice, makes the roof drainage structure more beautiful; 4) the rotating tube of the scheme is automatically formed repeatedly pressing, does not need to additionally configure kinetic energy, energy saving and environmental protection.

[0051] The above only describes the preferred and feasible embodiments of the utility model, and does not limit the scope of the utility model, and equivalent changes made by applying the contents of the utility model specification and its drawings are included in the scope of the utility model.

Claims

1. A self-accelerating drainage device, comprising a water inlet pipe (6), a bent pipe (7) and a guide pipe (9), characterized in that: the water inlet pipe (6) is communicated with a water collection position of a roof (1) and used for introducing roof rainwater; the bent pipe (7) is a corrugated pipe, one end of which is connected with the water inlet pipe (6); the guide pipe (9) is a half pipe, the upper end of which is connected with the lower part of the pipe opening of the bent pipe (7), and a film (10) is mounted on the surface of the half pipe; a rotating pipe (14) is provided, the lower end of which is provided with a sealing cover, and the upper end thereof is connected with the upper end of the guide pipe (9) through a pin shaft (18), the film (10) is sealed and attached to the outer wall of the upper end of the rotating pipe (14), the lower side of the rotating pipe (14) is provided with a drain hole, the drain hole is provided with a switch plate (15) in sealing cooperation with the drain hole, the upper end of the switch plate (15) is pinned to the inner wall of the rotating pipe (14), and the lower end of the switch plate (15) is provided with a second spiral spring (16) for pressing the switch plate (15) on the drain hole, the switch plate (15) is further provided with a top block (11) for lifting the switch plate (15), and the top block (11) is arranged at the bottom of the guide pipe (9).

2. The self-accelerating drain device according to claim 1, characterized by: The switch plate (15) is in inclined surface cooperation with the drain hole.

3. The self- accelerating drain of claim 1, wherein: The lower end of the drain hole is provided with a stop block (17), and the lower surface of the switch plate (15) is provided with a notch (151) which is matched with the stop block (17).

4. The self- accelerating drain of claim 1, wherein: The top of the bent pipe (7) is provided with an arc-shaped mounting piece (12), the left end of the mounting piece (12) is fixedly connected with the water inlet pipe (6), the right end of the mounting piece (12) is arranged above the rotating pipe (14), the right end of the mounting piece (12) is connected with a first spiral spring (13), and the other end of the first spiral spring (13) is connected with the upper side of the rotating pipe (14).

5. The self- accelerating drain of claim 1, wherein: The film (10) is an elastic rubber film.

6. The self- accelerating drain of claim 1, wherein: The film (10) is uniformly provided with micropores in the middle.

7. The self- accelerating drain of claim 1, wherein: The arc length of the switch plate (15) is one-half to one-third of the circumference of the rotating pipe (14).

8. The self- accelerating drain of claim 1, wherein: The top block (11) is a long bolt, the threaded end of which penetrates from the outer wall of the guide pipe (9) to the inner wall of the guide pipe (9), a nut is arranged on the threaded end, a sealing gasket is arranged between the nut and the inner wall of the guide pipe (9), and the length of the top block (11) is half of the height of the guide pipe (9).

Images