CN112710514B

CN112710514B - Automatic rainwater collecting device

Info

Publication number: CN112710514B
Application number: CN202110113319.5A
Authority: CN
Inventors: 徐明杰; 刘敏; 琚泽文; 王嘉伟; 左倬
Original assignee: China Three Gorges Corp; 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: 2023-07-25
Anticipated expiration: 2041-01-27
Also published as: CN112710514A

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 table, wherein the top of the rainwater collecting rotary table is open, and the bottom of the rainwater collecting rotary table is provided with a conveying pipe extending downwards and is driven by the rotary driving device to rotate around the 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 top of the sampling barrel is open, the inner side of the bottom of the sampling barrel is provided with a plurality of sampling cups, 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 uniform-speed gear group is used as a rotating driving device, so that rainwater can be collected in a time-sharing manner, 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 switch device for automatically starting acquisition, long-time squatting point 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 collecting device.

Background

In recent years, water environment problems are more and more emphasized, and rainwater is taken as an important water resource and is favored, so that the water environment problems are more and more attractive to attention and development. However, since the initial rain water is mixed with a large amount of particulate matters discharged from industries and automobiles in the air during natural falling, the ground surface mixed with various pollutants is flushed, so that the pollution content of the initial rain water is much higher than that of other periods. Therefore, it is necessary to collect rainwater in different areas and at different times, measure the relevant water quality index, and make intensive studies on purification and reuse of the initial rainwater.

Most of the existing rainwater collection work needs to arrange the squatting position of a person in advance according to weather forecast, and then collection is completed according to time periods, so that the collector is required to squat before raining, and operation is required in the raining process, the sampling efficiency is extremely low, and a large amount of manpower and material resources are required to be input. In recent years, although a plurality of automatic rainwater collecting devices are also appeared, the manufacturing cost of the devices is high, the process is complex, and the application range is limited.

Disclosure of Invention

Aiming at the defects, the invention aims to provide the automatic rainwater collecting device which is simple in structure and convenient to operate.

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 table, wherein the top of the rainwater collecting rotary table is open, and the bottom of the rainwater collecting rotary table is provided with a conveying pipe extending downwards and is driven by the rotary driving device to rotate around the 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 top of the sampling barrel is open, a plurality of sampling cups are arranged on the inner side of the bottom of the sampling barrel, the sampling cups are annularly distributed around the rotary driving device and are matched with the conveying pipe in position, and liquid dropping from the conveying pipe can be contained.

Preferably, the connection part of the conveying pipe and the rain collecting rotary table is funnel-shaped.

Preferably, a ring-shaped baffle is further arranged at the bottom of the rain collecting rotary table, and the sampling cup is located below the baffle.

Preferably, the rotation 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 is used for blocking the rotation of the rotation driving device.

Preferably, a plurality of lifting lugs are arranged on the top edge of the sampling barrel.

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

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

Compared with the prior art, the invention has the following advantages: the mechanical rotating structure comprising the spring group and the uniform-speed gear group is used as a rotating driving device, so that rainwater can be collected in a time-sharing manner, 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 switch device for automatically starting acquisition, so that long-time squat sampling and frequent operation are not needed, and the working efficiency is improved; the edge design lug on sampling bucket upper end, the tripod of below design can not receive the topography restriction, collects the initial rainwater of multiple position department, consequently has fine economic nature, practicality and suitability.

Drawings

FIG. 1 is a front view of an automatic rainwater harvesting apparatus of the present invention;

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

Description of element numbers:

1. sampling barrel

11. Lifting lug

12. Cup holder

2. Rain collecting rotary disk

21. Conveying pipe

3. Rotary driving device

4. Baffle plate

5. Sampling cup

6. Tripod stand

7. Floating rod

71. First turning part

72. Second turning part

73. Vertical part

8. Floating ball

9. Buckle

Detailed Description

The following describes the 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 be limiting.

In the description of the present invention, it should be noted that the terms "center," "longitudinal," "transverse," "upper," "lower," "vertical," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

As shown in fig. 1 and 2, the present invention provides an automatic rainwater collecting apparatus, which includes a sampling tub 1, a rotation driving device 3, a switching device, and a rainwater collecting turntable 2. Wherein, the top of the rain collecting rotary table 2 is open, the bottom is provided with a conveying pipe 21 which extends downwards, and the conveying pipe rotates around the axial direction under the drive of the rotary driving device 3. Specifically, the junction of conveyer pipe 21 and collection carousel 2 is funnel-shaped, makes things convenient for the rainwater to gather and flow out from conveyer pipe 21 from collection carousel 2.

The rotary driving device 3 is detachably installed inside the bottom of the sampling barrel 1 and is connected with the bottom of the rain collecting rotary table 2. The switching means is used to control the rotation of the rotary drive 3 to start during rain. The top of the sampling barrel 1 is open, the inner side of the bottom of the sampling barrel is provided with a plurality of sampling cups 5, the sampling cups 5 are distributed annularly around the rotary driving device 3 and are matched with the position of the conveying pipe 21, and liquid dropping from the conveying pipe 21 can be contained. Preferably, the sampling barrel 1 is made of Polyethylene (PE), and water leakage holes are formed in the edge of the bottom of the sampling barrel, 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 the mountable tripod 6 of bottom can not receive the topography restriction like this, is convenient for gather initial rainwater in multiple positions such as level land, rainwater inspection shaft and river course drainage. To prevent the position of the sampling cup 5 from changing, a plurality of cup holders 12 are fixed to the inner side of the bottom of the sampling tub 1, and one sampling cup 5 is placed in each cup holder 12.

Because the outer diameter of the rain collecting rotary table 2 is smaller than the inner diameter of the sampling barrel 1, the bottom of the rain collecting rotary table 2 is also provided with an annular baffle 4, and the sampling cup 5 is positioned below the baffle 4. When the water quantity is too large in the later period of rainfall, the baffle 4 can prevent rainwater overflowing from the edge of the rain collecting rotary table 2 from entering the sampling cup 5 and polluting the collected sample. Of course, those skilled in the art can set the outer diameter of the rain collecting carousel 2 to be larger than the outer diameter of the sampling bucket 1 as required, and rainwater overflowing from the edge of the rain collecting carousel 2 will directly fall outside the sampling bucket 1, so that the baffle 4 is not required.

In one embodiment of the present invention, the rotary drive device 3 includes a housing, a spring set, and a constant speed gear set. The spring group comprises a spring shaft rotatably arranged in the shell, a spring gear fixed on the spring shaft and a spring wound on the spring shaft, the uniform speed gear group is arranged between the spring group and the rain collecting rotary table 2 and comprises a plurality of gears meshed with each other, an input gear of the gears is meshed with the spring gear, and an output gear of the gears is connected with the rain collecting rotary table 2. The switch device comprises a floating rod 7 and a floating ball 8, wherein 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 turn-over portion 71 is L-shaped; the second turning part 72 is of an N type, and the bottom end is connected with a floating ball 8. The second N-shaped turning part 72 can prevent the floating rod 7 moving upwards from obstructing the rotation of the rain collecting rotary table 2, and can also prevent rainwater overflowing from the edge of the rain collecting rotary table 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 a rain collecting rotary table 2, wherein the rotation of the rain collecting rotary table 2 drives a constant-speed gear set, a spring gear and a spring shaft to rotate, so that the spring is screwed, then a second turning part 72 of a floating rod 7 is inserted into a conveying pipe 21, at the moment, a 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 contacts with the rain collecting rotary table 2 to prevent a rotation driving device 3 from rotating;

when rainfall occurs, rainwater flows into the sampling cup 5 from the conveying 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 rain collecting rotary table 2 any more, and at the moment, under the influence of the elastic potential energy of the screwed spring, the rotary driving device 3 drives the rain collecting rotary table 2 to slowly rotate at a constant speed;

over time, rainwater flows into all sampling cups 5 in sequence through the conveying pipe 21, and after rainfall is finished, the sampling cups 5 are taken out for water sample analysis.

According to the related study 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 table 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 compact annular 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 rotating speed of the rotary driving device 3 and the number and the size of the sampling cups 5 can be adjusted appropriately.

The person skilled in the art may adopt a rotating electric machine as the rotation driving device 3 and a liquid sensor as the switching device as required, and connect the rotating electric machine and the liquid sensor with the PLC controller, respectively. When the liquid sensor detects rainfall, the liquid sensor sends information to the PLC, and the PLC controls the rotating motor to start rotating and controls the steering and the rotating speed of the rotating motor.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.

Claims

1. The 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 table (2),

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

the rotary driving device (3) is arranged at 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; the switch device comprises a floating rod (7) and a floating ball (8), wherein the floating rod (7) comprises a vertical part (73) and a first rotating 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 is used for blocking the rotation of the rotary driving device (3);

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 conveying pipe (21), and liquid dropping from the conveying pipe (21) can be contained.

2. The automatic rainwater collection device according to claim 1, wherein the connection part of the conveying pipe (21) and the rainwater collection rotary plate (2) is funnel-shaped.

3. The automatic rainwater collecting device according to claim 1, wherein the bottom of the rainwater collecting rotary plate (2) is further provided with a ring-shaped baffle plate (4), and the sampling cup (5) is located below the baffle plate (4).

4. The automatic rainwater harvesting device according to claim 1, wherein the rotary driving device (3) comprises a spring set and a constant-speed gear set.

5. The automatic rainwater harvesting device according to claim 1, characterized in that the top edge of the sampling bucket (1) is provided with a plurality of lifting lugs (11).

6. The automatic rainwater collection device according to claim 1, wherein a plurality of cup seats (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 seat (12).

7. The automatic rainwater collection device according to claim 1, wherein the bottom of the sampling bucket (1) is provided with a water leakage hole.