CN112710514A

CN112710514A - Automatic rainwater collecting device

Info

Publication number: CN112710514A
Application number: CN202110113319.5A
Authority: CN
Inventors: 徐明杰; 刘敏; 琚泽文; 王嘉伟; 左倬
Original assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Current assignee: China Three Gorges Corp; Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-04-27
Anticipated expiration: 2041-01-27
Also published as: CN112710514B

Abstract

The invention provides an automatic rainwater collecting device which comprises a sampling barrel, a rotary driving device, a switching device and a rainwater collecting rotary disc, wherein the top of the rainwater collecting rotary disc is open, the bottom of the rainwater collecting rotary disc is provided with a conveying pipe extending downwards, and the rainwater collecting rotary disc is driven by the rotary driving device to rotate around an axial direction; the rotary driving device is arranged at the inner side of the bottom of the sampling barrel; the switch device is used for controlling the rotary driving device to start rotating when raining; the sampling barrel is open at the top, a plurality of sampling cups are arranged on the inner side of the bottom of the sampling barrel, and the sampling cups are distributed annularly around the rotary driving device and are matched with the conveying pipe in position. The invention has the advantages that: the mechanical rotating structure comprising the spring group and the constant speed gear group is used as a rotating driving device, rainwater can be collected in different time periods, and the device has the advantages of low construction cost, convenience in operation and maintenance and the like; the simple floating ball and the floating rod are used as the switching device for automatically starting collection, manual long-time squat sampling and frequent operation are not needed, and the working efficiency is improved.

Description

Automatic rainwater collecting device

Technical Field

The invention relates to the technical field of water environment monitoring, in particular to an automatic rainwater collection device.

Background

In recent years, the water environment problem is more and more emphasized by people, and rainwater is favored as an important water resource to attract attention and development of people. However, the initial rainfall is much higher in pollution content than other periods because the initial rainwater mixes with a large amount of industrial and automotive discharged particles in the air when naturally falling, and then washes the ground surface mixed with various pollutants. Therefore, it is necessary to collect rainwater in different areas and at different times and to measure relevant water quality indexes, and to deeply study the purification and reuse of initial rainwater.

Present rainwater collection work, most need arrange personnel in advance according to the weather forecast and squat the point, then gather according to the time quantum and accomplish, not only need gather the person and squat the point before raining, still need operate at the rain in-process, and sampling efficiency is extremely low, will drop into a large amount of manpower and materials. In recent years, although a plurality of automatic rainwater collecting devices are available, the devices are high in cost, complex in process and limited in application range.

Disclosure of Invention

In view of the above-mentioned drawbacks, the present invention provides an automatic rainwater collecting device with simple structure and easy operation.

The invention provides an automatic rainwater collecting device which comprises a sampling barrel, a rotary driving device, a switching device and a rainwater collecting rotary disc, wherein the top of the rainwater collecting rotary disc is open, the bottom of the rainwater collecting rotary disc is provided with a conveying pipe extending downwards, and the rainwater collecting rotary disc is driven by the rotary driving device to rotate around an axial direction; the rotary driving device is arranged on the inner side of the bottom of the sampling barrel; the switch device is used for controlling the rotary driving device to start rotating when raining; the sampling bucket top is uncovered, and its bottom inboard is equipped with a plurality of sampling cups, a plurality of sampling cups center on rotary drive device is the annular and distributes, and with the position of conveyer pipe cooperatees, can hold the follow liquid that drips in the conveyer pipe.

Preferably, the joint of the conveying pipe and the rain collecting rotary disc is funnel-shaped.

Preferably, the bottom of the rain collecting rotary disc is further provided with an annular baffle, and the sampling cup is located below the baffle.

Preferably, the rotary driving device comprises a spring group and a constant speed gear group.

Preferably, the switch device is a floating rod and a floating ball, the floating rod comprises a vertical part and a first turning part connected with the top of the vertical part, the vertical part is movably connected with the side wall of the sampling barrel, and the bottom of the vertical part is connected with the floating ball; the first turning part is L-shaped and used for blocking the rotation of the rotary driving device.

Preferably, the top edge of the sampling barrel is provided with a plurality of lifting lugs.

Preferably, a plurality of cup seats are fixed on the inner side of the bottom of the sampling barrel, and one sampling cup is placed in each cup seat.

Preferably, the bottom of the sampling barrel is provided with a water leakage hole.

Compared with the prior art, the invention has the advantages that: the mechanical rotating structure comprising the spring group and the constant speed gear group is used as a rotating driving device, rainwater can be collected in different time periods, and the device has the advantages of low construction cost, convenience in operation and maintenance and the like; the simple floating ball and the floating rod are used as a switching device for automatically starting collection, so that manual long-time squat sampling and frequent operation are not needed, and the working efficiency is improved; the sampling barrel upper end edge design lug, the below design tripod can not receive the topography restriction, collects the initial stage rainwater of multiple position department, consequently has fine economic nature, practicality and suitability.

Drawings

FIG. 1 is a front view of the automatic rainwater collection device of the present invention;

fig. 2 is a top view of the automatic rainwater collecting device of the present invention.

Element number description:

1 sampling barrel

11 lifting lug

12 cup holder

2 rain collecting rotary disc

21 conveying pipe

3 Rotary drive device

4 baffle

5 sampling cup

6 tripod

7 floating rod

71 first turning part

72 second turn

73 vertical part

8 floating ball

9 fastener

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "central", "longitudinal", "lateral", "upper", "lower", "vertical", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 and 2, the invention provides an automatic rainwater collection device, which comprises a sampling barrel 1, a rotary driving device 3, a switch device and a rainwater collection turntable 2. Wherein, the top of the rain collecting rotary disc 2 is open, the bottom is provided with a conveying pipe 21 extending downwards, and the rain collecting rotary disc rotates around the axial direction under the driving of the rotary driving device 3. Specifically, the connecting part of the conveying pipe 21 and the rain collecting rotary disc 2 is funnel-shaped, so that rainwater can be conveniently collected from the rain collecting rotary disc 2 and can flow out of the conveying pipe 21.

The rotary driving device 3 is detachably arranged at the inner side of the bottom of the sampling barrel 1 and is connected with the bottom of the rain collecting rotary disc 2. The switching device is used to control the rotation of the rotary drive 3 in the event of rain. The top of the sampling barrel 1 is open, a plurality of sampling cups 5 are arranged on the inner side of the bottom of the sampling barrel, the sampling cups 5 are distributed annularly around the rotary driving device 3 and are matched with the positions of the conveying pipes 21, and liquid dropping from the conveying pipes 21 can be contained. Preferably, the sampling barrel 1 is made of Polyethylene (PE), and the edge of the bottom of the sampling barrel is provided with a water leakage hole, so that rainwater in the later period of rainfall can be conveniently discharged. The top border is equipped with a plurality of lugs 11, and bottom mountable tripod 6 can not receive the topography restriction like this, is convenient for gather initial stage rainwater in multiple positions such as level land, rainwater inspection shaft and river course row mouth. In order to prevent the position of the sampling cup 5 from changing, a plurality of cup holders 12 are fixed on the inner side of the bottom of the sampling barrel 1, and one sampling cup 5 is placed in each cup holder 12.

Because the outer diameter of the rain collecting rotary disc 2 is smaller than the inner diameter of the sampling barrel 1, the bottom of the rain collecting rotary disc 2 is also provided with an annular baffle 4, and the sampling cup 5 is positioned below the baffle 4. When the water amount is too large in the later stage of rainfall, the baffle 4 can prevent rainwater overflowing from the edge of the rainwater collection rotary disc 2 from entering the sampling cup 5 to pollute a collected sample. Of course, those skilled in the art can set the outer diameter of the rain collecting rotary disc 2 to be larger than the outer diameter of the sampling barrel 1 according to the requirement, and the rain water overflowing from the edge of the rain collecting rotary disc 2 will directly fall outside the sampling barrel 1, so that the baffle 4 is not needed.

In one embodiment of the invention, the rotary drive 3 comprises a housing, a spring assembly and a constant speed gear assembly. The spring group comprises a spring shaft which is rotatably arranged in the shell, a spring gear which is fixed on the spring shaft and a spring which is wound on the spring shaft, the constant speed gear group is arranged between the spring group and the rain collecting rotary disc 2 and comprises a plurality of gears which are meshed with each other, the input gear of the constant speed gear group is meshed with the spring gear, and the output gear of the constant speed gear group is connected with the rain collecting rotary disc 2. The switch device is a floating rod 7 and a floating ball 8, and the floating rod 7 comprises a vertical part 73, a first turning part 71 connected with the top of the vertical part 73 and a second turning part 72 connected with the bottom of the vertical part 73. The vertical part 73 is movably connected with the side wall of the sampling barrel 1 through a buckle 9, and the buckle 9 limits the transverse displacement of the vertical part 73 but does not limit the longitudinal displacement thereof. The first turning portion 71 is L-shaped; the second turning part 72 is N-shaped, and the bottom end is connected with a floating ball 8. The second turning part 72 of the N-type can prevent the floating rod 7 moving upwards from obstructing the rotation of the rain collecting rotary disc 2, and can also prevent rain water overflowing from the edge of the rain collecting rotary disc 2 from flowing into the sampling cup 5 along the floating rod 7.

The working principle of the automatic rainwater collecting device is as follows:

firstly, rotating the rain collecting rotary disc 2, wherein the rotation of the rain collecting rotary disc 2 can drive the uniform gear set, the clockwork spring gear and the clockwork spring shaft to rotate, so that the clockwork spring is screwed down, then inserting the second turning part 72 of the floating rod 7 into the conveying pipe 21, at the moment, the floating ball 8 is placed at the bottom of a sampling cup 5 positioned right below the conveying pipe 21, and the floating rod 7 is in contact with the rain collecting rotary disc 2 and can prevent the rotation driving device 3 from rotating;

when rainfall occurs, rainwater flows into the sampling cup 5 from the delivery pipe 21, the liquid level in the sampling cup 5 rises, the floating ball 8 rises along with the liquid level to drive the second turning part 72 to move upwards, the floating rod 7 is not contacted with the rainwater collection rotating disc 2 any more, and at the moment, under the influence of the elastic potential energy of the tightened clockwork spring, the rotation driving device 3 drives the rainwater collection rotating disc 2 to slowly rotate at a constant speed;

along with the time, rainwater flows into all the sampling cups 5 in sequence through the conveying pipe 21, and after the rainfall is finished, the sampling cups 5 are taken out, so that water sample analysis can be carried out.

According to the related research of the initial rainwater, the time for collecting the initial rainwater is generally 5min, 10min, 15min, 20min, 25min, 30min, 40min, 50min and 60min, so that the time for rotating the rainwater collecting rotary disc 2 for one circle can be designed to be 62 min, the number of the sampling cups 5 is 13, the 13 sampling cups 5 are distributed in a tight ring shape, the water collecting time of the first 12 sampling cups 5 is ensured to be 5min, and the 13 th sampling cup 5 is used for collecting the rainwater in the later period of rainfall and discharging the redundant rainwater. If rainwater in other time periods is needed, the rotation speed of the rotary driving device 3 and the number and the size of the sampling cups 5 can be adjusted appropriately.

Those skilled in the art can also adopt a rotating motor as the rotation driving device 3 and a liquid sensor as a switching device, and connect the rotating motor and the liquid sensor with the PLC controller respectively, as required. When the liquid sensor detects rainfall, the liquid sensor sends information to the PLC controller, and the PLC controller controls the rotating motor to start rotating and controls the rotating direction and the rotating speed of the rotating motor.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An automatic rainwater collecting device is characterized by comprising a sampling barrel (1), a rotary driving device (3), a switching device and a rainwater collecting rotary disc (2),

the top of the rain collecting rotary disc (2) is open, the bottom of the rain collecting rotary disc is provided with a conveying pipe (21) extending downwards, and the rain collecting rotary disc is driven by the rotary driving device (3) to rotate around the axial direction;

the rotary driving device (3) is arranged on the inner side of the bottom of the sampling barrel (1);

the switch device is used for controlling the rotary driving device (3) to start rotating when raining;

sampling bucket (1) top is uncovered, and its bottom inboard is equipped with a plurality of sampling cups (5), a plurality of sampling cups (5) center on rotary driving device (3) are the annular and distribute, and with the position of conveyer pipe (21) cooperatees, can hold the follow liquid that drips in conveyer pipe (21).

2. An automatic rainwater collection device according to claim 1, characterized in that the connection between the delivery pipe (21) and the rainwater collection rotary disc (2) is funnel-shaped.

3. An automatic rainwater collecting device according to claim 1, characterized in that the bottom of the rainwater collecting rotary disc (2) is further provided with an annular baffle (4), and the sampling cup (5) is positioned below the baffle (4).

4. An automatic rainwater collection device according to claim 1, characterised in that said rotary drive means (3) comprises a spring group and a constant speed gear group.

5. The automatic rainwater collecting device according to claim 3, characterized in that the switch device is a floating rod (7) and a floating ball (8), the floating rod (7) comprises a vertical part (73) and a first turning part (71) connected with the top of the vertical part (73), the vertical part (73) is movably connected with the side wall of the sampling barrel (1), and the bottom of the vertical part is connected with the floating ball (8); the first turning part (71) is L-shaped and used for blocking the rotation of the rotary driving device (3).

6. An automatic rainwater collection device according to claim 1, characterized in that the top edge of the sampling barrel (1) is provided with a plurality of lifting lugs (11).

7. An automatic rainwater collection device according to claim 1, characterized in that a plurality of cup holders (12) are fixed to the inner side of the bottom of the sampling barrel (1), and one sampling cup (5) is placed in each cup holder (12).

8. The automatic rainwater collecting device according to claim 1, characterized in that the bottom of the sampling barrel (1) is provided with a water leakage hole.