A double-tipping bucket rain gauge with accurate measurement

Abstract

The invention relates to a double-tipping bucket rain gauge with accurate measurement, comprising a cylinder, a base, a rain collecting funnel, a bracket, a water collecting funnel, a dripper, a dripper switch device, a two-way tipping bucket, a first limiting column, a second limiting column and a turnover counting device. The invention has a novel design, a unique structure, is practical and convenient, and has accurate measurement. The two-way tipping bucket is rotatably connected to the two side edges of the bracket. In a natural state, the two-way tipping bucket abuts against the first limiting column or the second limiting column. At this time, precipitation flows into a water storage cavity through the rain collecting funnel, the water collecting funnel and the dripper under gravity. When the water storage cavity is full of water, the tipping bucket flips and dumps the water it contains. During the flipping process of the tipping bucket, after the two-way tipping bucket is separated from the abutment with the first limiting column or the second limiting column, the dripper switch device can control the water outlet of the dripper to be closed. At this time, precipitation cannot flow into the full water storage cavity through the dripper, so that the measurement error of the rain gauge can be reduced and the measurement accuracy can be improved.

Description

Technical Field

[0001] The invention relates to the field of rainfall measuring instruments and devices, and in particular to a double-tipping bucket rain gauge with accurate measurement. Background Art

[0002] Precipitation is an important meteorological element. The observation of precipitation is of great significance for meteorological, hydrological, marine, environmental observations as well as for the safety of aviation and railway transportation. A rain gauge (rain gauge, rain meter) is an important instrument used to measure the precipitation in a certain area over a period of time. Its measurement accuracy and wide applicability to various rainfall intensity conditions are directly related to the accuracy and reliability of the measured data, and are particularly important for rainfall observation.

[0003] There are many types of rain gauges, the most common ones are siphon rain gauge, weighing rain gauge, tipping bucket rain gauge, etc. Currently, the main form of rain gauge is the tipping bucket type. However, compared with other forms of rain gauges, tipping bucket rain gauges generally have technical problems such as low measurement accuracy and poor stability.

[0004] Therefore, how to provide a rain gauge with high measurement accuracy and strong stability is a technical problem that those skilled in the art need to solve urgently. Summary of the invention

[0005] The invention provides a double-tipping bucket rain gauge with accurate measurement, which solves the technical problems of low measurement accuracy and poor stability of the existing tipping bucket rain gauge.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a double-tipping bucket rain gauge with accurate measurement, comprising a cylinder, a base, a rain collecting funnel, a bracket, a water collecting funnel, a drip nozzle, a drip nozzle switch device, a two-way tipping bucket, a first limit column, a second limit column and a tipping counting device,

[0007] The bottom end of the cylinder is mounted on the base; the rain funnel is mounted on the top of the cylinder; the bracket is fixed on the base and is located inside the cylinder; the water receiving funnel is fixed on the bracket and its water receiving port is arranged below the water outlet of the rain funnel; the drip nozzle is fixed on the bracket and its water inlet is connected with the water outlet of the water receiving funnel;

[0008] The two-way tipping bucket is rotatably connected to the bracket and corresponds to the bottom of the drip nozzle; the first limit column and the second limit column are vertically fixed on the base and can be abutted against the bottom end surface of the two-way tipping bucket; the two-way tipping bucket has two water storage chambers with the same volume and the two water storage chambers can only be connected to the water outlet of the drip nozzle individually as the two-way tipping bucket flips; the drip nozzle switch device is installed at the water outlet of the drip nozzle to control its opening and closing; the flip counting device is installed on the two-way tipping bucket to record the number of flips, and the flip counting device is electrically connected to the external counting display device.

[0009] The beneficial effects of the present invention are as follows: the two-way tipping bucket is rotatably connected to the two sides of the bracket, and in a natural state, the two-way tipping bucket abuts against the first limiting column or the second limiting column, and at this time, precipitation flows into a water storage chamber through the rain receiving funnel, the water receiving funnel and the drip nozzle under the force of gravity, and when the water storage chamber is full of water, the tipping bucket turns over and dumps the water it contains;

[0010] During the tipping process, since the two-way tipping bucket is out of contact with the first limit column or the second limit column, the drip nozzle switch device can control the water outlet of the drip nozzle to close. At this time, precipitation cannot flow into the full water storage cavity through the drip nozzle, which can reduce the measurement error of the rain gauge and improve the measurement accuracy.

[0011] After the two-way tipping bucket is dumped, another water-containing chamber is connected to the water outlet of the drip nozzle. Since the two-way tipping bucket is not separated from the contact with the first limiting column or the second limiting column, the drip nozzle switch device controls the outlet of the drip nozzle to open, and the above operation is repeated;

[0012] During this process, the overturn counting device records the number of bidirectional bucket overturns and displays it through an external counting display device. The inspectors can calculate the rainfall in the area over a certain period of time based on the data displayed on the technical display device.

[0013] Based on the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, the two-way tipping bucket may include a bottom plate, two side plates and a partition plate, wherein the two side plates are vertically fixed on the two edges of the bottom plate; the partition plate is vertically fixed in the middle of the bottom plate and is perpendicular to the two side plates, and defines two water-containing chambers between the bottom plate and the two side plates; the two side plates are rotatably connected to both sides of the bracket; the lower end surfaces of the bottom plate corresponding to the two water-containing chambers may abut against the top of the limiting column one or against the limiting column two.

[0015] The beneficial effect of adopting the above-mentioned further scheme is: since the partition is vertically fixed in the middle of the bottom plate and is perpendicular to the two side plates, and defines two water holding chambers between the bottom plate and the two side plates, the two-way tipping bucket is similar to two L-shaped structures arranged back to back. On the one hand, it is convenient for the two-way tipping bucket to pour out the water it holds, and on the other hand, it is convenient for the two water holding chambers to be connected to the water outlet of the drip nozzle only one by one as the two-way tipping bucket is flipped.

[0016] Furthermore, the drip nozzle switch device includes: a water-cutting baffle made of metal, an electromagnet, a battery and a plurality of electric sheets, wherein the water-cutting baffle rotates on one side of the top of the drip nozzle and can open or close the water outlet of the drip nozzle; the electromagnet is fixed on one side of the drip nozzle to electrically adsorb the water-cutting baffle to close the water outlet of the drip nozzle; the battery is fixed inside the base and is electrically connected to the electromagnet,

[0017] The multiple electric sheets include: electric sheet one, electric sheet two, electric sheet three and electric sheet four, electric sheet one is fixed on the bottom end surface of the two-way dump bucket and corresponds to the contact point of the limit column one; electric sheet two is fixed on the bottom end surface of the two-way dump bucket and corresponds to the contact point of the limit column two; electric sheet three is fixed on the top of the limit column one; electric sheet four is fixed on the top of the limit column two; after electric sheet one abuts with electric sheet four, they form circuit one with the battery; after electric sheet two abuts with electric sheet three, they form circuit two; the battery and the electromagnet form circuit three; circuit one, circuit two and circuit three are parallel circuits and after circuit one or circuit two is in the on state, circuit three is in the off state, and after circuit one and circuit two are both in the off state, circuit three is in the on state.

[0018] The beneficial effect of adopting the above further scheme is: since circuit one, circuit two and circuit three are parallel circuits, circuit one, circuit two and circuit three are parallel circuits and circuit one or circuit two is in a connected state after circuit three is in an open circuit state, and circuit one and circuit two are in an open circuit state after circuit three is in a connected state.

[0019] In the natural state of the rain gauge, the two-way tipping bucket abuts against the limit column 1 or the two-way tipping bucket abuts against the limit column 2, that is, the electric sheet 1 abuts against the electric sheet 3 or the electric sheet 2 abuts against the electric sheet 4. At this time, the circuit 1 or the circuit 2 is in the on state, and the circuit 3 is in the off state. The electromagnet is not energized and has no magnetism, and cannot absorb the water cut-off baffle to close the water outlet of the drip nozzle. The precipitation passes through the water receiving funnel, the water receiving funnel and the drip nozzle into the water storage cavity of the two-way tipping bucket;

[0020] When the water is full, the two-way tipping bucket flips over, and the two-way tipping bucket disengages from the limit column one or the limit column two, that is, the electric sheet one and the electric sheet three are disengaged, and the electric sheet two and the electric sheet four are disengaged. At this time, circuit one and circuit two are both in the disconnected state, and circuit three is in the connected state. The electromagnet is energized to obtain magnetism, and the water cut-off baffle is adsorbed to close the water outlet of the drip nozzle.

[0021] Furthermore, the resistance formed when the electric sheet 1 and the electric sheet 3 are in contact with each other is the same as the resistance formed when the electric sheet 2 and the electric sheet 4 are in contact with each other, and both are smaller than the resistance of the electromagnet.

[0022] Furthermore, the flip counting device may include a magnet, a magnetic switch and a signal transmission terminal, wherein the magnet is fixed on one of the side plates and swings with the flipping of the bidirectional dump bucket; the magnetic switch is fixed on the upper end of the bracket and senses the approach or distance of the magnet and records the number of times the magnet approaches or the number of times the magnet moves away; the signal transmission terminal is fixed on the bracket and connected to an external counting display device to transmit the flipping number of the bidirectional dump bucket.

[0023] The beneficial effects of adopting the above further scheme are: using existing mature technology to avoid secondary development, the magnetically controlled switch can accurately record the number of flips of the two-way tipping bucket, the signal output terminal receives the number of flips recorded by the magnetically controlled switch and transmits it to an external counting and display device, and by recording the number of flips, the amount of rainfall in the area over a certain period of time can be calculated, providing accurate hydrological information for environmental science research.

[0024] Furthermore, both the first limiting column and the second limiting column are height-adjustable limiting columns.

[0025] The beneficial effect of adopting the above-mentioned further scheme is that the two-way dump bucket is rotatably connected to the two side edges of the bracket. In the natural state, the two-way dump bucket abuts against the top end of limit column one or the top end of limit column two. Since the heights of limit column one and limit column two can be adjusted up and down, when the flipping angle of the two-way dump bucket is too large, limit column one or limit column two can be adjusted upward. When the flipping angle of the two-way dump bucket is too small, limit column one or limit column two can be adjusted downward.

[0026] Furthermore, it may also include a plurality of base brackets, wherein the top ends of the plurality of base brackets are fixed at intervals on the lower end of the base, and the bottom ends are fixed at intervals on the ground surface.

[0027] The beneficial effect of adopting the above further solution is that since the bottom end of the base bracket is fixed to the ground surface, the stability of the rain gauge can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic front view of the internal structure of a double-tipping bucket rain gauge with accurate measurement according to the present invention;

[0029] Figure 2 A schematic side view of the internal structure of a double-tipping bucket rain gauge with accurate measurement according to the present invention;

[0030] Figure 3 It is a schematic diagram of the positional relationship and mechanism of the electromagnet and the drip nozzle in a double-tipping bucket rain gauge with accurate measurement of the present invention;

[0031] Figure 4 The present invention discloses a circuit diagram of a nozzle switch device in a double-tipping bucket rain gauge with accurate measurement.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Cylinder, 2. Base, 3. Bracket, 4. Water collecting funnel, 5. Drip nozzle, 6. Two-way tipping bucket, 61. Bottom plate, 62. Side plate, 63. Partition, 7. Limit column one, 8. Limit column two, 9. Water receiving funnel, 10. Water cut-off baffle, 11. Electromagnet, 12. Magnetic steel, 13. Magnetic switch, 14. Signal transmission terminal, 15. Base bracket, XB1, electric sheet one, XB2, electric sheet two, XB3, electric sheet three, XB4, electric sheet four. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] like Figure 1 As shown, a double-tipping bucket rain gauge with accurate measurement includes a cylinder 1, a base 2, a rain collecting funnel 9, a bracket 3, a water collecting funnel 4, a drip nozzle 5, a drip nozzle switch device, a two-way tipping bucket 6, a limit column 1 7, a limit column 2 8 and a flip counting device.

[0036] The bottom end of the cylinder 1 is mounted on the base 2; the rain funnel 9 is mounted on the top of the cylinder 1; the bracket 3 is fixed on the base 2 and is located inside the cylinder 1; the water receiving funnel 4 is fixed on the bracket 3 and its water receiving port is arranged below the water outlet of the rain funnel 9; the drip nozzle 5 is fixed on the bracket 3 and its water inlet is connected to the water outlet of the water receiving funnel 4;

[0037] The two-way tipping bucket 6 is rotatably connected to the bracket 3 and corresponds to the bottom of the drip nozzle 5; the limiting column 1 7 and the limiting column 2 8 are vertically fixed on the base 2 and can abut against the bottom end surface of the two-way tipping bucket 6; the two-way tipping bucket 6 has two water storage chambers with the same volume and the two water storage chambers can only be connected to the water outlet of the drip nozzle 5 individually as the two-way tipping bucket 6 is flipped; the drip nozzle switch device is installed at the water outlet of the drip nozzle 5 to control its opening and closing; the flip counting device is installed on the two-way tipping bucket 6 to record the number of flips, and the flip counting device is electrically connected to an external counting and display device.

[0038] In some specific embodiments, the bidirectional dump bucket 6 may include a bottom plate 61, two side plates 62 and a partition plate 63, wherein the two side plates 62 are vertically fixed on the two edges of the bottom plate 61; the partition plate 63 is vertically fixed in the middle of the bottom plate 61 and is perpendicular to the two side plates 62, and defines two water-containing chambers between the bottom plate 61 and the two side plates 62; the two side plates 62 are rotatably connected to the two sides of the bracket 3; the lower end surfaces of the bottom plate 61 corresponding to the two water-containing chambers may abut against the top of the limiting column 7 or against the limiting column 8.

[0039] In some specific embodiments, the drip nozzle switch device may include: a water-cutting baffle 10 made of metal, an electromagnet 11, a battery and a plurality of electric sheets, wherein the water-cutting baffle 10 rotates on one side of the top of the drip nozzle 5 and can open or close the water outlet of the drip nozzle 5; the electromagnet 11 is fixed on one side of the drip nozzle 5 to electrically adsorb the water-cutting baffle 10 to close the water outlet of the drip nozzle 5; the battery is fixed inside the base 2 and is electrically connected to the electromagnet 11.

[0040] The multiple electric sheets may include: electric sheet one XB1, electric sheet two XB2, electric sheet three XB3 and electric sheet four XB4, electric sheet one XB1 is fixed on the bottom end surface of the two-way dump bucket 6 and corresponds to the contact point where the limiting column one 7 abuts; electric sheet two XB2 is fixed on the bottom end surface of the two-way dump bucket 6 and corresponds to the contact point where the limiting column two 8 abuts; electric sheet three XB3 is fixed on the top of the limiting column one 7; electric sheet four XB4 is fixed on the top of the limiting column two 8; after the electric sheet one XB1 abuts with the electric sheet four XB4, they form circuit one with the battery; after the electric sheet two XB2 abuts with the electric sheet three XB3, they form circuit two with the battery; the battery and the electromagnet 11 form circuit three; circuit one, circuit two and circuit three are parallel circuits and after circuit one or circuit two is in the on state, circuit three is in the off state, and after circuit one and circuit two are both in the off state, circuit three is in the on state.

[0041] In some specific embodiments, the resistance formed when the first electric sheet XB1 and the third electric sheet XB3 are in contact with each other is the same as the resistance formed when the second electric sheet XB2 and the fourth electric sheet XB4 are in contact with each other, and both are smaller than the resistance of the electromagnet 11 .

[0042] In some specific embodiments, the flip counting device may include a magnet 12, a magnetic switch 13 and a signal transmission terminal 14. The magnet 12 is fixed on one of the side plates 62 and swings with the flipping of the bidirectional tipping bucket 6; the magnetic switch 13 is fixed on the upper end of the bracket 3 and senses the approach or distance of the magnet 12 and records the number of times the magnet 12 approaches or the number of times the magnet 12 moves away; the signal transmission terminal 14 is fixed on the bracket 3 and connected to an external counting display device to transmit the flipping number of the bidirectional tipping bucket 6.

[0043] In some specific embodiments, both the limiting column 1 7 and the limiting column 2 8 can be height-adjustable limiting columns.

[0044] In some specific embodiments, a plurality of base brackets 15 may be further included, wherein the top ends of the plurality of base brackets 15 are fixed at intervals on the lower end of the base 2 , and the bottom ends are fixed at intervals on the ground.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-bucket rain gauge with accurate measurement, characterized in that: The invention comprises a cylinder (1), a base (2), a rain collecting funnel (9), a bracket (3), a water collecting funnel (4), a drip nozzle (5), a drip nozzle switch device, a two-way tipping bucket (6), a first limit column (7), a second limit column (8) and a tipping counting device. The bottom end of the cylinder (1) is mounted on the base (2); the rain collecting funnel (9) is mounted on the top end of the cylinder (1); the bracket (3) is fixed on the base (2) and is located inside the cylinder (1); the water receiving funnel (4) is fixed on the bracket (3) and its water receiving port is arranged below the water outlet of the rain collecting funnel (9); the drip nozzle (5) is fixed on the bracket (3) and its water inlet is connected to the water outlet of the water receiving funnel (4); The two-way tipping bucket (6) is rotatably connected to the bracket (3) and corresponds to the bottom of the drip nozzle (5); the first limiting column (7) and the second limiting column (8) are vertically fixed on the base (2) and can abut against the bottom end surface of the two-way tipping bucket (6); the two-way tipping bucket (6) has two water storage chambers with the same volume and the two water storage chambers can only be connected to the water outlet of the drip nozzle (5) individually as the two-way tipping bucket (6) turns over; the drip nozzle switch device is installed at the water outlet of the drip nozzle (5) to control its opening and closing; the flip counting device is installed on the two-way tipping bucket (6) to record the number of flips, and the flip counting device is electrically connected to an external counting display device; The bidirectional dump bucket (6) comprises a bottom plate (61), two side plates (62) and a partition plate (63), wherein the two side plates (62) are vertically fixed to the two edges of the bottom plate (61); the partition plate (63) is vertically fixed in the middle of the bottom plate (61) and is perpendicular to the two side plates (62), and defines two water-containing chambers between the bottom plate (61) and the two side plates (62); the two side plates (62) are rotatably connected to the two sides of the bracket (3); the lower end surfaces of the bottom plate (61) corresponding to the two water-containing chambers can abut against the top of the limiting column 1 (7) or the limiting column 2 (8); The drip nozzle switch device comprises: a water-blocking baffle (10) made of metal, an electromagnet (11), a battery and a plurality of electric sheets; the water-blocking baffle (10) rotates on one side of the top of the drip nozzle (5) and can open or close the water outlet of the drip nozzle (5); the electromagnet (11) is fixed on one side of the drip nozzle (5) to electrically adsorb the water-blocking baffle (10) to close the water outlet of the drip nozzle (5); the battery is fixed inside the base (2) and is electrically connected to the electromagnet (11). The plurality of electric sheets include: electric sheet one (XB1), electric sheet two (XB2), electric sheet three (XB3) and electric sheet four (XB4), wherein the electric sheet one (XB1) is fixed to the bottom end surface of the two-way dump bucket (6) and corresponds to the abutment point of the one-limiting column (7); the electric sheet two (XB2) is fixed to the bottom end surface of the two-way dump bucket (6) and corresponds to the abutment point of the two-limiting column (8); the electric sheet three (XB3) is fixed to the top of the one-limiting column (7); the electric sheet four (XB4) is fixed to the one-limiting column The top of the second (8); the electric sheet one (XB1) and the electric sheet four (XB4) form a circuit one together with the battery after being abutted; the electric sheet two (XB2) and the electric sheet three (XB3) form a circuit two together with the battery; the battery and the electromagnet (11) form a circuit three; the circuit one, the circuit two and the circuit three are parallel circuits and the circuit three is in an open circuit state after the circuit one or the circuit two is in an open circuit state, and the circuit three is in an open circuit state after the circuit one and the circuit two are both in an open circuit state.

2. A double-tipping bucket rain gauge with accurate measurement according to claim 1, characterized in that: The resistance formed when the electric sheet 1 (XB1) and the electric sheet 3 (XB3) are in contact with each other is the same as the resistance formed when the electric sheet 2 (XB2) and the electric sheet 4 (XB4) are in contact with each other, and both are smaller than the resistance of the electromagnet (11).

3. A double-tipping bucket rain gauge with accurate measurement according to claim 1, characterized in that: The turnover counting device comprises a magnet (12), a magnetic switch (13) and a signal transmission terminal (14); the magnet (12) is fixed on one of the side plates (62) and swings with the turnover of the bidirectional bucket (6); the magnetic switch (13) is fixed on the upper end of the bracket (3) and senses the approach or departure of the magnet (12) and records the number of times the magnet (12) approaches or the number of times the magnet (12) leaves; the signal transmission terminal (14) is fixed on the bracket (3) and connected to an external counting display device to transmit the number of turnovers of the bidirectional bucket (6).

4. A double-tipping bucket rain gauge with accurate measurement according to claim 1, characterized in that: The first limiting column (7) and the second limiting column (8) are both height-adjustable limiting columns.

5. A double-tipping bucket rain gauge with accurate measurement according to claim 1, characterized in that: It also comprises a plurality of base supports (15), wherein the top ends of the plurality of base supports (15) are fixed at intervals on the lower end of the base (2), and the bottom ends are fixed at intervals on the ground surface.

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