CN2258284Y

CN2258284Y - Rain-gauge tipping bin

Info

Publication number: CN2258284Y
Application number: CN 96232199
Authority: CN
Inventors: 杨汉塘
Original assignee: Nanjing Water Conservancy and Hydrology Automatization Institute Ministry of Water Resources
Current assignee: Nanjing Water Conservancy and Hydrology Automatization Institute Ministry of Water Resources
Priority date: 1996-07-02
Filing date: 1996-07-02
Publication date: 1997-07-23
Anticipated expiration: 2006-07-02

Abstract

The utility model discloses a rain-gauge tipping bin, which is a plastic make piece, wherein, the shape of which is round tubular. A left bin chamber and a right bin chamber are across a partition wall and mutual extension at the point of the middle partition wall and are mutually occupying counterpart's equivalent space to reduce the balance weight needed by a tipping bin member self when the weighing is conducted. The utility model has the advantages of light weight, small moment of inertia, high start-up and turning speed and higher measurement accuracy. The waterpower wetted perimeter of a round section bin chamber is small, adhesion loss is small, and thereby, the measurement accuracy of the apparatus is further ensured.

Description

Udometric tipping bucket

The utility model belongs to the technical field that the hydrology, meteorology and spray drip irrigation station, farmland net are measured liquid quantity of precipitation, relates to the improvement to tipping-bucket rain-gauge tipping bucket parts, particularly relates to udometric tipping bucket.

Tipping-bucket rain-gauge is generally adopted as the Basic Measuring Instrument of measuring liquid quantity of precipitation.Tipping-bucket rain-gauge has various model both at home and abroad at present, the udometric tipping bucket of above-mentioned various models, and the symmetrical small room of the equal right and wrong of its structure garden tubulose is formed.The tipping bucket deadweight is heavier, particularly metallic article.The tipping-bucket rain-gauge of above-mentioned various models exists following defective when measuring, promptly tipping bucket because of moment of inertia is bigger, starts, reversal rate is slower, influences measuring accuracy in switching process.The small room wetted perimeter of non-garden tubular sections is bigger, and the water yield that whole headwall adheres to is more, and another influences measuring accuracy.For satisfying of the requirement of China's hydrologic survey standard, the small sensible weight tipping-bucket rain-gauge is adopted multilayer tipping bucket structure, and caused the complexity of apparatus structure the quantity of precipitation measuring accuracy.The metallic article tipping bucket, processing technology complexity, cost height.

The purpose of this utility model is to provide a kind of udometric tipping bucket that has improved, and it has degree of precision, reliability, to overcome the deficiencies in the prior art.

The technical solution of the utility model is as follows: the general structure of tipping-bucket rain-gauge still keeps traditional form, and just the udometric tipping bucket that provides with the utility model substitutes the tipping bucket of traditional tipping-bucket rain-gauge.As rain gage tipping bucket metering unit, the udometric tipping bucket of the utility model design, its key is different with the tipping bucket of traditional tipping-bucket rain-gauge on tipping bucket profile and structure, it is the plastic part that profile is the garden tubulose, left side small room, right small room extend mutually at the midfeather place, and cross partition wall mutually and occupy quantity spaces such as the other side, the required counterweight of tipping bucket parts self when weighing with minimizing.In the moment that tipping bucket overturns to the right, as current direction tipping bucket the right of counterweight, strengthen turning torque to the right rapidly in the left small room space of right small room, improved the speed of tipping bucket upset.Vice versa.

The udometric tipping bucket of the utility model design, in light weight, moment of inertia is little, starts, reversal rate is fast, and measuring accuracy is higher.Garden shape section small room, the waterpower wetted perimeter is little, and adhesion loss is little, thereby further guarantees the measuring accuracy of instrument.Above-mentioned useful effect is that traditional tipping-bucket rain-gauge is not available.

The transducing part one-piece construction synoptic diagram of traditional tipping-bucket rain-gauge tipping bucket is provided for the udometric tipping bucket that provides with the utility model Fig. 1.

Udometric tipping bucket profile and structural drawing that Fig. 2 provides for the utility model.

Embodiment of the present utility model is as follows, with reference to Fig. 2, udometric tipping bucket extends to space (14), right small room water inlet (15), left small room water inlet (16), magnet steel (5), the tipping bucket rotating shaft (8) that the space (11) of left small room, left small room (13), left small room extend to right small room by right small room (3), partition wall (12), right small room and forms.

See figures.1.and.2, the udometric tipping bucket (2) that the utility model provides places bearing (7) to substitute the tipping bucket of traditional tipping-bucket rain-gauge by tipping bucket rotating shaft (8), the general structure of tipping-bucket rain-gauge still keeps traditional form, enter the right small room (3) of tipping bucket (2) through the funnel (1) of water collector by the quantity of precipitation of standard collar extension collection, enter the left small room space (11) of right small room (3) simultaneously, along with quantity of precipitation constantly enters, tipping bucket the right weight constantly increases, after its moment is greater than tipping bucket left side trimming moment, the tipping bucket out of trim, right small room (3) is upset downwards, the upset right small room in back (3) rests on the fine setting nail (10), and water poured into water collect tank (9), discharge outside the instrument body.The inswept magneto sensor (4) that is fixed on the support (6) of magnet steel (5) on the moment of tipping bucket upset its rear side, and make its contact conducting, carry out the quantity of precipitation bulk registration via traditional recording mode.The udometric tipping bucket of the utility model is the mechanical type bistable structure, behind right small room (3) pouring, promptly rests on the bottom fine setting nail (10), and left small room (13) rises to top, continues to accept water, repeats, and above-mentioned action circulates.

Claims

1. udometric tipping bucket, extending to space (14), right small room water inlet (15), left small room water inlet (16), magnet steel (5), the tipping bucket rotating shaft (8) that the space (11) of left small room, left small room (13), left small room extend to right small room by right small room (3), partition wall (12), right small room forms, it is characterized in that left small room (13), right small room (3) extend mutually at the midfeather place, and cross partition wall mutually and occupy quantity spaces such as the other side.