CN112198561A

CN112198561A - Tipping bucket type rain gauge

Info

Publication number: CN112198561A
Application number: CN202010953263.XA
Authority: CN
Inventors: 孙纯虎; 胡庆钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-01-08

Abstract

A tipping bucket type rain gauge comprises a base, an integrally formed gantry support fixedly arranged on the base, a support fixedly arranged at the top of the gantry support, a rain bearing hopper with the bottom penetrating through the support and fixedly arranged on the support, and a plurality of tipping buckets arranged on the gantry support in a turnover manner, the rainfall sensing mechanism is positioned between the measuring tipping bucket and the tipping bucket above the measuring tipping bucket, and the rainfall sensing mechanism performs rainfall measurement and counting and conveys results to the output terminal for final output of rainfall numerical values. The design has the advantages of small rainfall metering error, high precision and simple structure.

Description

Tipping bucket type rain gauge

Technical Field

The invention relates to the field of rainfall monitoring, in particular to a tipping bucket type rain gauge.

Background

The structure of the existing tipping bucket rain gauge generally adopts a support, a tipping bucket, an additional metering tipping bucket and a counting tipping bucket, the assembly is relatively complex, meanwhile, because the parts additionally arranged on the support are generally more, the structure of the support is also more complex, when the metering of large rainfall is carried out, because the existing rain gauge adopts the design of a single tipping bucket, a large amount of rainwater enters the tipping bucket in a short time, the tipping bucket can not be correctly and timely turned over, the rainwater entering the tipping bucket runs off, and therefore the rain gauge can not measure the rainwater entering the tipping bucket currently, and finally the problems of inaccurate rainfall metering and poor precision are caused, in the aspect of precision adjustment, most of the existing tipping bucket rain gauges adopt a left thimble screw and a right thimble screw to carry out error adjustment, and because two sides need to be adjusted simultaneously, therefore, the adjustment is inconvenient, on the other hand, the prior reed switch is fixedly arranged in a narrow space between the counting tipping bucket and the metering tipping bucket, and the problem of damage of the reed switch can be avoided in the long-time rainfall metering process, and the reed switch in the design can not be replaced conveniently in time.

Disclosure of Invention

The invention aims to provide a tipping bucket type rain gauge which has small error in rain gauge measurement, high precision and simple structure.

In order to solve the technical problems, the invention adopts the following technical scheme: a tipping bucket type rain gauge comprises a base, an integrally formed gantry support fixedly arranged on the base, a support fixedly arranged at the top of the gantry support, a rain bearing funnel, a plurality of tipping buckets, a measuring tipping bucket, a rainfall sensing mechanism, an output terminal and a point positioning mechanism, wherein the bottom of the rain bearing funnel penetrates through the support and is fixedly arranged on the support, the plurality of tipping buckets are arranged on the gantry support in a turnable manner, the measuring tipping bucket is arranged at the bottom of the gantry support in a turnable manner, the rainfall sensing mechanism is fixedly arranged on the gantry support, the output terminal is connected and matched with the rainfall sensing mechanism, the gantry support comprises an integrally formed gantry left support and a gantry right support, a plurality of pairs of tipping bucket supporting points for installing the plurality of tipping buckets are arranged on the gantry left support and the gantry right support, the plurality of tipping buckets are arranged on the gantry support in a turnable manner from top to bottom below an outlet at the bottom of the rain bearing funnel through the plurality of pairs of tipping bucket supporting points, a longitudinal, the point positioning mechanism comprises a rotating part with an external thread and a positioning head with an internal thread matched with the external thread, the positioning head comprises a positioning part which can be attached to the inner side of the gantry support and a matching part which is integrally formed with the positioning part, a positioning column for positioning the metering tipping bucket is further fixedly arranged on the positioning part, the internal thread is arranged in the matching part, one-point positioning of the metering tipping bucket is realized through up-and-down sliding adjustment of the matching part in the longitudinal positioning groove and fastening between the rotating part, the rainfall sensing mechanism is positioned between the metering tipping bucket and the tipping bucket above the metering tipping bucket, and the rainfall sensing mechanism carries out measurement counting of rainfall and conveys results to an output terminal for final output of rainfall numerical values.

Further, a plurality of tipping buckets include one-level tipping bucket and second grade tipping bucket that top-down set gradually, the measurement tipping bucket is tertiary tipping bucket, still be equipped with a plurality of longitudinal positioning groove and correspond on the mounted position of one-level tipping bucket, second grade tipping bucket and tertiary tipping bucket and install a point positioning mechanism, still fixed being equipped with on a plurality of location portions is used for fixing a position a plurality of reference columns of one-level tipping bucket, second grade tipping bucket and tertiary tipping bucket, through a plurality of cooperation portions in a plurality of longitudinal positioning groove up-down slide adjust and with screw the fastening between the piece realize one-level tipping bucket, second grade tipping bucket and tertiary tipping bucket one point location.

Furthermore, the rainfall induction mechanism comprises a reed pipe, a magnetic induction reading unit electrically connected with the flowmeter and a pulse output control unit electrically connected with the magnetic induction reading unit, the magnetic induction reading unit comprises an inductance sensor array formed by a plurality of inductance sensors, a switch circuit and a single chip microcomputer circuit, the switch circuit is connected with the single chip microcomputer circuit, the reed pipe collects the overturning action of the metering tipping bucket, the tipping bucket is closed once every overturning, the rainfall represents 0.1mm, and pulse signals converted by the reed pipe are transmitted to the single chip microcomputer circuit through the pulse output control unit to measure the rainwater.

Furthermore, the rainfall sensing mechanism is movably connected with the gantry support through a drawer type mounting shell.

Furthermore, the upper surface of the base is also provided with a level gauge for detecting the position of the base.

The invention has the beneficial effects that: the invention carries out the installation of all parts of the rain gauge through the arched portal bracket with the support, the portal bracket which is integrally designed and processed does not use more metal cross bars and vertical beams in the traditional rain gauge bracket, the bracket structure is simplified, simultaneously the use of fasteners such as screws and nuts is reduced, the application cost is reduced, the assembly of parts such as a tipping bucket with larger body in the rain gauge is simple and firm and is not easy to make mistakes, and the design of a tipping bucket pivot is directly carried out on the portal bracket, thereby facilitating the adjustment of the balance degree of the whole rain gauge, secondly, the invention carries out the multi-stage graded metering of the rain through a plurality of tipping buckets, and avoids the problems that the tipping bucket cannot turn over in time because the rain enters and is collected too fast when the large rain gauge is carried out by most of single-stage tipping bucket rain gauges, so that the rain runs off and the metering of the rain is inaccurate, compared with the existing rain gauges, the rain gauge is more accurate in metering, small in error and greatly improved in accuracy and precision, and thirdly, compared with the existing rain gauges which adopt a left positioning knob and a right positioning knob to position two ends of the rain gauge so as to finish error adjustment of the rain gauge in a factory or a use site, the rain gauge disclosed by the invention avoids the problems that the two ends are complicated in positioning and the error is difficult to correct through the design of a one-point positioning mechanism, the error is smaller when the rain gauge is applied in the factory or the use site, and the metering accuracy of the whole rain gauge is further improved, so that the rain gauge is more suitable for metering of larger rain amount, and the requirement of accurate metering of large rain amount is met.

Drawings

Fig. 1 is a schematic view of the overall structure of a dump-bucket rain gauge.

Fig. 2 is a schematic structural view of a gantry support.

Fig. 3 is a side structural schematic view of the gantry support.

Fig. 4 is a schematic view of the installation and matching structure of the gantry support and the one-point positioning mechanism.

FIG. 5 is a schematic view of the engagement of the positioning head and the tightening member.

The part names numbered in the drawings are as follows: 1. a base; 2. a gantry support; 2.1, gantry left support; 2.2, a gantry right support; 2.3, a tipping bucket fulcrum; 3. a support; 4. a rain bearing funnel; 5. three-stage tipping; 6. a rainfall sensing mechanism; 7. a tightening member; 8. positioning the head; 8.1, a positioning part; 8.2, a matching part; 8.3, a positioning column; 10. a first-stage tipping bucket; 11. a second-stage tipping bucket; 12. a level gauge.

Detailed Description

In order to make the technical means, innovative features and functions of the present invention easy to understand, the present invention will be further described below.

As shown in figures 1-5, the technical scheme of the tipping bucket type rain gauge of the invention comprises a base 1, an integrally formed gantry support 2 fixedly arranged on the base 1, a support 3 fixedly arranged on the top of the gantry support 2, a rain-bearing funnel 4 with the bottom passing through the support 3 and fixedly arranged on the support 3, a plurality of tipping buckets rotatably arranged on the gantry support 2, a measuring tipping bucket rotatably arranged on the bottom of the gantry support 2, a rain sensing mechanism 6 fixedly arranged on the gantry support 2, an output terminal connected and matched with the rain sensing mechanism 6, and a point positioning mechanism, wherein the gantry support 2 comprises an integrally formed gantry left support 2.1 and a gantry right support 2.2, a plurality of pairs of tipping bucket fulcrums 2.3 for mounting the plurality of tipping buckets are arranged on the gantry left support 2.1 and the gantry right support 2.2, the plurality of tipping buckets are arranged on the gantry support 2 from the bottom of the outlet of the rain-bearing funnel 4 through the plurality of pairs of tipping bucket fulcrums 2.3 from top to bottom, the mounting position of the gantry support 2 measuring tipping bucket is also provided with a longitudinal positioning groove and a point positioning mechanism, the point positioning mechanism comprises a screwing piece 7 with external threads and a positioning head 8 with internal threads matched with the external threads, the positioning head 8 comprises a positioning part 8.1 which can be jointed with the inner side of the gantry support 2 and a matching part 8.2 which is integrally formed with the positioning part 8.1, the positioning part 8.1 is also fixedly provided with a positioning column 8.3 for positioning the measuring tipping bucket, the internal thread is arranged in the matching part 8.2, one-point positioning of the metering tipping bucket is realized through the up-and-down sliding adjustment of the matching part 8.2 in the longitudinal positioning groove and the fastening between the matching part and the screwing piece 7, the rainfall sensing mechanism 6 is positioned between the metering tipping bucket and the tipping bucket above the metering tipping bucket, and the rainfall sensing mechanism 6 measures and counts rainfall and transmits the result to an output terminal for final output of a rainfall numerical value. Compared with the existing rain gauge, the detection range of the invention breaks through the detection precision of the existing rain gauge, the precision is 0.1mm, and meanwhile, when the rain gauge is in the range of 0.1-4mm/min, the error of the rain gauge is less than or equal to +/-4%.

In the practical application process, on one hand, in order to meet the requirement of the rain gauge on multi-level graded metering during the rain metering, and reduce the large error generated in the rain metering process of the existing single-stage skip bucket, on the other hand, in order to meet the requirement of the rain gauge on simple structure and reduce the application cost, in a preferred embodiment of the invention, the skip buckets include a first-stage skip bucket 10 and a second-stage skip bucket 11 which are sequentially arranged from top to bottom, the metering skip bucket is a third-stage skip bucket 5, a plurality of longitudinal positioning slots are further arranged on the installation positions of the first-stage skip bucket 10, the second-stage skip bucket 11 and the third-stage skip bucket 5, a point positioning mechanism is correspondingly installed on the longitudinal positioning slots, a plurality of positioning columns 8.3 for positioning the first-stage skip bucket 10, the second-stage skip bucket 11 and the third-stage skip bucket 5 are further fixedly arranged on the positioning portions 8.1, and the first-stage skip bucket 10, the second-stage skip bucket 11 and the third-stage skip bucket 5 are fastened, In the structure, the three-level tipping bucket 5 is used as the metering tipping bucket, so that the metering precision of the whole rain gauge in the rain metering process is further improved, and the metering error in the heavy rain metering process, particularly the heavy rain metering process, is reduced.

In the present invention, the rainfall sensing mechanism 6 may adopt a plurality of flow sensing devices or assemblies to measure the rainfall, and in one embodiment of the present invention, the rainfall sensing mechanism 6 includes a reed switch, a magnetic induction reading unit electrically connected to the flow meter, and a pulse output control unit electrically connected to the magnetic induction reading unit, the magnetic induction reading unit includes an inductance sensor array formed by a plurality of inductance sensors, a switch circuit, and a single chip circuit, the switch circuit is connected to the single chip circuit, the reed switch collects the turning action of the measuring skip, the turning is closed once every turning, the rainfall represents 0.1mm, and the pulse output control unit transmits the pulse signal converted by the reed switch to the single chip circuit to measure the rainwater.

Because the structure of the rainfall sensing device of the existing rainfall gauge is complex, the design of the inner space of the whole rainfall gauge is complex, too much space is not provided for installing the rainfall sensing device, particularly, a reed switch is always installed at the narrow space position of the rainfall gauge, and the rainfall sensing device is difficult to be quickly and timely detached during installation, maintenance and repair, so that the rainfall sensing device 6 can be conveniently replaced, the rainfall sensing device 6 is movably connected with the gantry support 2 through a drawer type installation shell, and the installation shell and the gantry support 2 are movably installed and matched through a plurality of fixing screws. In the practical application process, the plane where the rain gauge is located is not a horizontal plane in controllable environments such as a laboratory, in order to avoid a natural error of rain measurement caused by the fact that the position where the rain gauge is located is a non-planar position, the measurement accuracy of the rain gauge is further improved, the upper surface of the base 1 is further provided with a level 12 for detecting the position of the base, the level 12 can detect the plane where the rain gauge is located before the rain gauge is used for measuring the rain gauge, and then a measurer adjusts the position of the rain gauge, so that the rain gauge is guaranteed to be located at the horizontal position as much as possible for measuring the rain gauge, the measurement error caused by the inclination of the rain gauge is reduced, even if the rain gauge cannot be guaranteed to be always located at the horizontal position for measuring the rain gauge, the error adjustment of the current working state of the rain gauge can be carried out through a point positioning mechanism and an auxiliary error adjusting mechanism according to the level, the metering accuracy of the whole rain gauge is improved.

Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited thereto, and various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A tipping bucket formula rain gauge which characterized in that: the rain-proof and rain-proof gantry crane comprises a base (1), an integrally formed gantry support (2) fixedly arranged on the base (1), a support (3) fixedly arranged at the top of the gantry support (2), a rain-bearing funnel (4) with the bottom penetrating through the support (3) and fixedly arranged on the support (3), a plurality of tipping buckets arranged on the gantry support (2) in a turnover manner, a measuring tipping bucket arranged at the bottom of the gantry support (2) in a turnover manner, a rain sensing mechanism (6) fixedly arranged on the gantry support (2), an output terminal connected and matched with the rain sensing mechanism (6), and a point positioning mechanism, wherein the gantry support (2) comprises an integrally formed gantry left support (2.1) and a gantry right support (2.2), a plurality of pairs of tipping bucket fulcrums (2.3) for installing a plurality of tipping buckets are arranged on the gantry left support (2.1) and the gantry right support (2.2), and the plurality of tipping buckets are arranged from the bottom outlet of the rain-bearing funnel (4) from top to bottom through the plurality of tipping bucket fulcrums (2.3 The device is arranged on a gantry support (2), a longitudinal positioning groove is further arranged at the mounting position of the metering tipping bucket of the gantry support (2), a point positioning mechanism is further arranged on the mounting position of the metering tipping bucket of the gantry support (2), the point positioning mechanism comprises a rotating part (7) with an external thread and a positioning head (8) provided with an internal thread matched with the external thread, the positioning head (8) comprises a positioning part (8.1) capable of being attached to the inner side of the gantry support (2) and a matching part (8.2) integrally formed with the positioning part (8.1), a positioning column (8.3) for positioning the metering tipping bucket is further fixedly arranged on the positioning part (8.1), the internal thread is arranged in the matching part (8.2), one-point positioning of the metering tipping bucket is realized through vertical sliding adjustment of the matching part (8.2) in the longitudinal positioning groove and fastening between the rotating part (7), and the rainfall sensing mechanism (6) is positioned between the metering tipping bucket and the tipping bucket above the metering tipping bucket, the rainfall sensing mechanism (6) measures and counts the rainfall and transmits the result to the output terminal for final output of the rainfall numerical value.

2. A dump box rain gauge as set forth in claim 1, wherein: a plurality of tipping buckets include one-level tipping bucket (10) and second grade tipping bucket (11) that top-down set gradually, the measurement tipping bucket is tertiary tipping bucket (5), still be equipped with a plurality of longitudinal positioning groove and correspond on the mounted position of one-level tipping bucket (10), second grade tipping bucket (11) and tertiary tipping bucket (5) and install a point positioning mechanism, still fixedly be equipped with a plurality of reference columns (8.3) that are used for fixing a position one-level tipping bucket (10), second grade tipping bucket (11) and tertiary tipping bucket (5) on a plurality of location portion (8.1), through a plurality of cooperation portion (8.2) in a plurality of longitudinal positioning groove upper and lower slide adjusting and with fasten between piece (7) realize one-level tipping bucket (10), second grade tipping bucket (11) and a little location of tertiary tipping bucket (5).

3. A dump box rain gauge as claimed in claim 1 or 2, wherein: the rainfall sensing mechanism comprises a reed switch, a magnetic induction reading unit electrically connected with a flowmeter and a pulse output control unit electrically connected with the magnetic induction reading unit, wherein the magnetic induction reading unit comprises an inductance sensor array consisting of a plurality of inductance sensors, a switch circuit and a single chip microcomputer circuit, the switch circuit is connected with the single chip microcomputer circuit, the reed switch collects the overturning action of the metering tipping bucket, the tipping bucket is closed once every time of overturning, the rainfall represents 0.1mm, and pulse signals converted by the reed switch are transmitted to the single chip microcomputer circuit through the pulse output control unit to measure the rainwater.

4. A dump box rain gauge as claimed in claim 1 or 2, wherein: the rainfall sensing mechanism (6) is movably connected with the gantry support (2) through a drawer type mounting shell.

5. A dump box rain gauge as set forth in claim 3, wherein: the rainfall sensing mechanism (6) is movably connected with the gantry support (2) through a drawer type mounting shell.

6. A dump box rain gauge as claimed in claim 1, 2 or 5, wherein: the upper surface of the base (1) is also provided with a level gauge (12) for detecting the position of the base.

7. A dump box rain gauge as set forth in claim 3, wherein: the upper surface of the base (1) is also provided with a level gauge (12) for detecting the position of the base.

8. A dump box rain gauge according to claim 4, wherein: the upper surface of the base (1) is also provided with a level gauge (12) for detecting the position of the base.