An initial rainwater automatic diversion device

Abstract

The present invention discloses an automatic initial rainwater diversion device, belonging to the technical field of rainwater separation. It includes a rainwater diversion pool, an initial rainwater storage tank, a switching device and a time-delay device. The initial rainwater storage tank is located directly below the rainwater diversion pool; the initial rainwater channel is located on the left side of the initial rainwater storage tank; a mid-late rainwater outlet is opened on the right side wall of the rainwater diversion pool, and the mid-late rainwater channel is vertically arranged downward on the right side of the initial rainwater storage tank; a switching device is arranged on the partition wall between the initial rainwater channel and the initial rainwater storage tank, and a time-delay device is installed between the mid-late rainwater channel and the initial rainwater storage tank. The technical effect of the present invention: realizes the automatic diversion of initial rainwater and mid-late rainwater, enables the initial rainwater to be collected and treated, and the mid-late rainwater to be collected and reused; after the runoff ends, the device can automatically return to the initial state without manual control and without energy consumption.

Description

Technical Field

[0001] The present invention belongs to the technical field of rainwater separation, and particularly relates to an automatic initial rainwater diversion device. Background Art

[0002] At present, the shortage of water resources has become a global problem, and the recycling of rainwater can effectively relieve the pressure of water use. However, a large amount of polluting gases are dissolved in the initial rainwater. After falling to the ground, it carries a large amount of pollutants such as organic matter, pathogens, and suspended solids due to washing the roof and roads. The degree of pollution usually exceeds that of ordinary urban sewage. If it is mixed with the later rainwater, it will cause problems such as high treatment costs. Therefore, it is necessary to carry out a flow diversion treatment on it.

[0003] How to completely separate the initial rainwater and the later rainwater is a major technical problem to be faced. At present, the main methods of initial rainwater flow diversion are as follows: high and low water level initial rainwater collection tanks, integrated rain and sewage diversion intercepting wells, spiral rainwater diversion devices, etc. And these initial rainwater separation facilities have problems such as low collection efficiency, large floor area, high cost, and difficulty in distinguishing small-flow later rainwater. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the technical problem to be solved by the present invention is to provide an automatic initial rainwater diversion device, which can not only separate the initial rainwater and the middle and later rainwater, but also collect the later rainwater with a small flow rate, and automatically return to the initial state after the runoff ends, without an electric control device, without energy consumption, and without manual operation.

[0005] The technical problem to be solved by the present invention is realized through the following technical solution. It includes a rainwater diversion pool, an initial rainwater storage tank, a switching device, and a delay device. The initial rainwater storage tank is located directly below the rainwater diversion pool; the left end of the bottom surface of the rainwater diversion pool is opened downward and communicates with a vertical initial rainwater channel, and the initial rainwater channel is located on the left side of the initial rainwater storage tank; the right end of the bottom surface of the rainwater diversion pool is opened downward and communicates with a diversion channel, and the diversion channel is connected to the inlet at the top of the initial rainwater storage tank. A middle and later rainwater port is opened on the right side wall of the rainwater diversion pool, and the middle and later rainwater port is the inlet of the middle and later rainwater channel. The middle and later rainwater channel is vertically arranged downward on the right side of the initial rainwater storage tank; a switching device is arranged on the partition wall between the initial rainwater channel and the initial rainwater storage tank, and a delay device is installed between the middle and later rainwater channel and the initial rainwater storage tank.

[0006] The technical effects of the present invention are:

[0007] Under the control of a mechanical linkage device that does not rely on electricity, automatic diversion of initial rainwater and mid- to late-stage rainwater is achieved, enabling the collection and treatment of initial rainwater and the collection and reuse of mid- to late-stage rainwater; after the runoff ends, the device can automatically return to its initial state without manual operation and without energy consumption; while saving energy, it can reduce the pollution of natural water bodies by initial rainwater, and the reuse of mid- to late-stage rainwater can alleviate the problem of water resource shortage. In addition, by adjusting the position of the sliding partition in the rainwater diversion pool, the present invention can be applied to areas with different catchment areas. Brief Description of the Drawings

[0008] The brief description of the drawings of the present invention is as follows:

[0009] Figure 1 is a schematic structural diagram of the present invention;

[0010] Figure 2 is a schematic structural diagram of the delay device;

[0011] Figure 3 is a working state diagram of the switching device being opened at the beginning of rainfall;

[0012] Figure 4 is a working state diagram of the switching device being closed during the mid- to late-stage of rainfall.

[0013] In the figures: 1. Rainwater diversion pool; 11. Sliding partition; 12. Slide groove; 13. Mid- to late-stage rainwater outlet; 2. Initial rainwater channel; 3. Drainage channel; 4. Mid- to late-stage rainwater channel; 5. Initial rainwater storage tank; 51. Drain pipe; 6. Switching device; 61. Rotating flap; 62. First clamping seat; 63. Second clamping seat; 7. Delay device; 71. Pulley group; 72. Delay barrel; 73. Leakage small holes; 74. Floating ball suspension rope; 75. Plug suspension rope; 76. Floating ball; 77. Conical plug; 8. Rainwater pipe. Detailed Description of the Preferred Embodiments

[0014] The present invention will be further described below in conjunction with the drawings and embodiments:

[0015] For the purpose of clearly describing the content of the invention, the terms "upper", "lower", "left", and "right" are used in this patent application for distinction. The "upper", "lower", "left", and "right" are determined according to the layout orientation of the above drawings. In actual use, when the viewing direction changes, the orientation names will change accordingly, which should not be regarded as a limitation to the scope of patent protection.

[0016] As Figure 1 and Figure 3 shown, the present invention includes a rainwater diversion pool 1, an initial rainwater storage tank 5, a switching device 6, and a delay device 7. The initial rainwater storage tank 5 is located directly below the rainwater diversion pool 1;

[0017] The left end opening of the bottom surface of the rainwater shunt pool 1 is downwardly connected to the vertical initial rainwater channel 2, and the initial rainwater channel 2 is located on the left side of the initial rainwater storage tank 5; the right end opening of the bottom surface of the rainwater shunt pool 1 is downwardly connected to the drainage channel 3, and the drainage channel 3 is connected to the entrance at the top of the initial rainwater storage tank 5. A middle and late rainwater inlet 13 is opened on the right side wall of the rainwater shunt pool 1, and the middle and late rainwater inlet 13 is the entrance of the middle and late rainwater channel 4, and the middle and late rainwater channel 4 is vertically downwardly arranged on the right side of the initial rainwater storage tank 5;

[0018] A switching device 6 is arranged on the wall between the initial rainwater channel 2 and the initial rainwater storage tank 5, and the switching device 6 is used to switch the flow direction of rainwater to separate the initial rainwater and the middle and late rainwater; a delay device 7 is installed between the middle and late rainwater channel 4 and the initial rainwater storage tank 5, and the delay device 7 is used to delay the time during the interval of heavy rain, keep the flow direction of rainwater unchanged, and flow out along the middle and late rainwater channel 4.

[0019] like Figure 1 As shown, a horizontal chute 12 is installed on the front and rear side walls and the bottom corner of the rainwater shunt pool 1, and a sliding partition 11 is embedded in the chute 12. The sliding partition 11 divides the rainwater shunt pool 1 into two water collection areas. The height of the sliding partition 11 is not higher than the center line of the middle and late rainwater outlets 13 to avoid the sliding partition 11 blocking the rainwater from being discharged from the middle and late rainwater outlets 13. Adjusting the position of the sliding partition 11 can adjust the water distribution between the initial rainwater channel 2 and the initial rainwater storage tank 5.

[0020] An entrance is provided at the top of the left wall of the initial rainwater storage tank 5, and the interior of the top plate of the box body adjacent to the entrance is an inclined surface, which is used to support the float 76 to apply force to the switching device 6; the bottom of the initial rainwater storage tank 5 is in an inverted cone shape, and the cone bottom opening is connected to the drainage pipe 51 to converge to the initial rainwater channel 2, and the initial rainwater channel 2 is connected to the urban sewage network; a float 76 is built into the initial rainwater storage tank 5, and a cone-shaped hole plug 77 is embedded in the cone bottom opening. The function of the float 76 is to change the position of the switching device 6; the cone-shaped hole plug 77 is used to block the cone bottom opening to allow the initial rainwater storage tank 5 to store water and open the cone bottom opening to drain the water from the initial rainwater storage tank.

[0021] The position of the sliding partition 11 of the rainwater diversion pool 1 and the volume of the initial rainwater storage tank 5 jointly determine the flow of the initial rainwater, so that the present invention can accurately separate the initial rainwater in different road surfaces and rainy seasons.

[0022] like Figure 1 and Figure 4As shown, the switching device 6 includes a rotating folding plate 61, a first holder 62 installed on the wall of the initial rainwater channel 2, a second holder 63 installed at the entrance of the initial rainwater storage tank 5, and a float 76. The bent edge of the rotating folding plate 61 is movably installed on the wall of the initial rainwater storage tank 5. One side baffle of the rotating folding plate 61 extends into the initial rainwater channel 2, and the other side baffle remains at the entrance of the initial rainwater storage tank 5. The first holder 62 and the second holder 63 correspond to the closing position of the baffles on both sides. The float 76 in the initial rainwater storage tank 5 is located below the rotating folding plate 61, and the buoyancy of the rising water level pushes the rotating folding plate 61 to rotate and close.

[0023] like Figure 2 and Figure 4 As shown, the delay device 7 includes a pulley block 71, a delay barrel 72, a float 76 and a conical hole plug 77; a pulley block 71 is provided on the top surface of the initial rainwater storage tank 5 and the wall 4 of the middle and late rainwater channel, the float 76 is suspended at the end of the float suspension rope 74, and the conical hole plug 77 is suspended at the end of the hole plug suspension rope 75. The float suspension rope 74 and the hole plug suspension rope 75 pass through the top plate of the initial rainwater storage tank 5, bypass the corresponding fixed pulleys and merge into one rope, extend to and bypass the fixed pulley on the wall 4 of the middle and late rainwater channel, and a delay barrel 72 is hung at the lower end of the suspension rope, the delay barrel 72 is located below the middle and late rainwater outlet 13, the delay barrel 72 is open at the top and has a small leakage hole 73 at the bottom.

[0024] The delay barrel 72 is located below the middle and late rainwater inlet 13, and the top of the delay barrel 72 is open to ensure that the middle and late rainwater can fall into the delay barrel, increase the weight of the delay barrel, and pull the floating ball 76 and the conical hole plug 77 connected to the delay barrel, so that the floating ball 76 is pressed against the rotating folding plate 61 and does not rotate, blocking the entrance of the initial rainwater channel 2 and the initial rainwater storage tank, and can also remove the remaining water in the initial rainwater storage tank 5; all the rainwater is removed from the middle and late rainwater channel 4 through the middle and late rainwater inlet 13, and the bottom of the middle and late rainwater channel 4 is connected to the rainwater pipe 8. When the rainstorm stops, no water flows into the middle and late rainwater channel 4, and the water accumulated in the delay barrel 72 continues to maintain the delay device 7 unchanged, playing a delay role, so as to adapt to the interval between two rainstorms.

[0025] The water leakage from the leaking hole 73 gradually reduces the weight of the delay barrel 72. After the water in the delay barrel 72 has leaked out, the float 76 and the conical hole plug 77 pull the delay barrel 72 up, and the conical hole plug 77 falls into the conical bottom opening of the initial rainwater storage tank 5. The float 76 is suspended in the air, and the rotating folding plate 61 rotates and resets under the action of its own weight. The initial rainwater channel 2 and the entrance of the initial rainwater storage tank are opened, entering the initial rainwater diversion state.

[0026] Working principle of the present invention:

[0027] like Figure 3As shown, the present invention is installed below the rainwater grate. Before the rainfall begins, the rotating folding plate provides a torque to the rotating shaft at the baffle on one side of the initial rainwater storage tank 5, which is greater than the torque provided by the baffle on one side of the initial rainwater channel 2. The baffle on one side of the initial rainwater storage tank 5 is in a horizontal state, and the entrance of the initial rainwater storage tank 5 is not closed; the float 76 is suspended in the initial rainwater storage tank 5, and the conical hole plug 77 is heavier than the delay barrel 72. The conical hole plug 77 blocks the conical bottom opening of the initial rainwater storage tank 5.

[0028] After the rainfall begins, runoff begins to occur, and rainwater flows from the rainwater inlet into the rainwater shunt pool 1. Since the sliding partition 12 divides the rainwater shunt pool 1 into two catchment areas, one large and one small, most of the initial rainwater flows from the larger catchment area into the initial rainwater channel 2 and is discharged into the urban sewage network. A small amount of initial rainwater enters the smaller catchment area and flows into the initial rainwater storage tank 5 through the drainage channel; as the runoff continues, the amount of rainwater in the initial rainwater storage tank 5 increases, and the position of the float 76 rises with the water level. When the amount of rainwater flowing in reaches the set volume of the initial rainwater storage tank 5, the rainwater will cause the float to support the rotating folding plate 61, causing it to generate a counterclockwise torque relative to the rotating shaft. The rotating folding plate 61 rotates counterclockwise, gets stuck on the first and second seats 62 and 63, and closes the entrances of the initial rainwater channel 2 and the initial rainwater storage tank 5, as shown in FIG. Figure 4 At this time, the suspension rope 74 connected to the floating ball is in a loose state, and the initial rainwater runoff ends.

[0029] The middle and late rainwater continues to flow into the rainwater diversion pool 1. When the water level of the middle and late rainwater outlet 13 is reached, the rainwater flows into the middle and late rainwater outlet 13, and a small amount of rainwater falls into the delay barrel 72. Since the flow rate of the leaking hole 73 is extremely small, the leaked rainwater is much less than the rainwater flowing into the delay barrel 72, so the rainwater will fill the delay barrel 72, and the remaining large amount of rainwater will flow into the middle and late rainwater channel 4 and be discharged into the rainwater network through the rainwater pipe 8; when the delay barrel 72 is full of rainwater, the weight increases, and the conical hole plug 77 is pulled up by pulling the hanging rope, and the initial rainwater in the initial rainwater storage tank 5 is discharged into the initial rainwater channel 2 through the drainage pipe 51; at this time, since the delay barrel 72 drives the hanging rope to descend, the float hanging rope 74 connected to the float 76 is tightened, so after the initial rainwater flows out, the float will continue to support the rotating folding plate 61.

[0030] When the rainwater runoff ends, no rainwater continues to flow into the delay barrel 72, and the rainwater in the delay barrel 72 leaks out from the leaking hole 73. As the rainwater in the delay barrel 72 is emptied, the weight of one end of the delay barrel 72 will be less than the weight of the conical hole plug 77 again. At this time, the conical hole plug 77 pulls the hole plug hanging rope 75 down and blocks the drain pipe 51 again. The delay barrel 72 rises to the initial height again, and the float 76 also falls and hangs in the air; after losing the support of the float, the rotating folding plate 61 rotates clockwise to return to the initial state, and the entire device recovers. Figure 3The initial state shown.

Claims

1. An automatic initial rainwater diversion device, Characterized in that: It includes a rainwater diversion pool (1), an initial rainwater storage tank (5), a switching device (6) and a time-delay device (7). The initial rainwater storage tank (5) is located directly below the rainwater diversion pool (1); The bottom surface of the rainwater diversion pool (1) has an opening at the left end that communicates vertically downward with the initial rainwater channel (2). The initial rainwater channel (2) is located on the left side of the initial rainwater storage tank (5). The bottom surface of the rainwater diversion pool (1) has an opening at the right end that communicates vertically downward with the diversion channel (3). The diversion channel (3) is connected to the inlet at the top of the initial rainwater storage tank (5). There is a mid-late stage rainwater port (13) on the right side wall of the rainwater diversion pool (1). The mid-late stage rainwater port (13) is the inlet of the mid-late stage rainwater channel (4). The mid-late stage rainwater channel (4) is vertically arranged downward on the right side of the initial rainwater storage tank (5). A switching device (6) is provided on the partition wall between the initial rainwater channel (2) and the initial rainwater storage tank (5). A time-delay device (7) is installed between the mid-late stage rainwater channel (4) and the initial rainwater storage tank (5); The time-delay device (7) includes a pulley block (71), a time-delay barrel (72), a floating ball (76) and a conical hole plug (77). Pulley blocks (71) are provided on the top surface of the initial rainwater storage tank (5) and the wall of the mid-late stage rainwater channel (4). The floating ball (76) is suspended at the end of the floating ball suspension rope (74). The conical hole plug (77) is suspended at the end of the hole plug suspension rope (75). The floating ball suspension rope (74) and the hole plug suspension rope (75) pass through the top plate of the initial rainwater storage tank (5) and bypass the corresponding fixed pulleys and merge into one rope, and then bypass the fixed pulley on the wall of the mid-late stage rainwater channel (4). The lower end of the suspension rope is hung with a time-delay barrel (72). The time-delay barrel (72) is located below the mid-late stage rainwater port (13). The time-delay barrel (72) has an opening at the top and a leakage small hole (73) at the bottom; The switching device (6) includes a rotating folding plate (61), a first card seat (62) installed on the wall of the initial rainwater channel (2), a second card seat (63) installed at the inlet of the initial rainwater storage tank (5) and a floating ball (76). The bending edge of the rotating folding plate (61) is movably installed on the wall of the initial rainwater storage tank (5). One side baffle of the rotating folding plate (61) extends into the initial rainwater channel (2), and the other side baffle remains at the inlet of the initial rainwater storage tank (5). The first card seat (62) and the second card seat (63) correspondingly position and close the two side baffles. The floating ball (76) in the initial rainwater storage tank (5) is located below the rotating folding plate (61), and the rotating folding plate (61) is pushed to rotate and close by the buoyancy force of the rising water level.

2. The automatic initial rainwater diversion device according to claim 1, Characterized in that: Horizontal chutes (12) are installed on the front and rear side walls and the bottom corners of the rainwater diversion pool (1). A sliding partition (11) is embedded in the chutes (12). The sliding partition (11) divides the rainwater diversion pool (1) into two water collection areas. The height of the sliding partition (11) is not higher than the midline of the mid-late stage rainwater port (13).

3. The automatic initial rainwater diversion device according to claim 1 or 2, Characterized in that: The initial rainwater storage tank (5) has an inlet at the top of the left wall, and the interior of the top plate of the box body adjacent to the inlet is an inclined surface. The bottom of the initial rainwater storage tank (5) is in an inverted cone shape, and the cone bottom opening is connected to the drainage pipe (51) to converge into the initial rainwater channel (2); the initial rainwater storage tank (5) has a built-in float (76), and a cone-shaped hole plug (77) is embedded in the cone bottom opening.

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