CN208984406U - A kind of triangular-notch weir device suitable for the measurement of small watershed suspended load - Google Patents
A kind of triangular-notch weir device suitable for the measurement of small watershed suspended load Download PDFInfo
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- CN208984406U CN208984406U CN201821837203.6U CN201821837203U CN208984406U CN 208984406 U CN208984406 U CN 208984406U CN 201821837203 U CN201821837203 U CN 201821837203U CN 208984406 U CN208984406 U CN 208984406U
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- Prior art keywords
- triangular
- weir
- suspended load
- notch weir
- small watershed
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Abstract
The utility model is more particularly to a kind of triangular-notch weir device suitable for the measurement of small watershed suspended load, described device includes triangular-notch weir main body, the graduation mark for identifying different flow is provided in the triangular-notch weir main body, overflow hole is equipped at each graduation mark, diversion pipe is equipped at each overflow hole, each water conservancy diversion pipe end is provided with the collection sample bottle being detachably connected.The device, in the different height aperture of conventional triangular-notch weir, can acquire the sample under different flow at the small watershed exit or entrance of a clitch, analyze the quality of its suspended load for solving the problems, such as that semiarid zone Soil Erosion in Small Watershed suspended load is measured.
Description
Technical field
The utility model relates to the suspended load measuring study fields of Soil Erosion in Small Watershed, and in particular to one kind is suitable for small
The triangular-notch weir device of basin suspended load measurement.
Background technique
In the prior art, the measurement method of suspended load is broadly divided into two kinds: (1) being measured using suspended sediment sampler；
(2) artificial sample measures.
For using suspended sediment sampler mensuration, although available reliable measurement data, it is mainly
In order to measure the sedimentary loading in the long-term big river with regime flow, and higher cost；For artificial sample mensuration, in reality
Feasibility is poor in operation, and obtained data do not have continuity, is especially sampled in rainfall, sample frequency and sampling matter
There is error in amount.
In conclusion especially Loess Plateau, most of basin be not steady in a long-term in northern China semiarid zone
Flow, only just will form runoff when rainy, and generate erosion, in this situation, two kinds of measurement sides in the prior art
Method is not suitable for solving the problems, such as that semiarid zone Soil Erosion in Small Watershed suspended load measures.
Utility model content
The purpose of the utility model is to provide a kind of triangular-notch weir device suitable for the measurement of small watershed suspended load, which is used
In solving the problems, such as the measurement of semiarid zone Soil Erosion in Small Watershed suspended load, opened in the different height of conventional triangular-notch weir main body
Hole can acquire the sample under different flow at the small watershed exit or entrance of a clitch, analyze the quality of its suspended load.
The technical solution adopted in the utility model is as follows:
A kind of triangular-notch weir device suitable for the measurement of small watershed suspended load, described device includes triangular-notch weir main body, and described three
It is provided with the graduation mark for identifying different flow in the main body of angle weir, overflow hole is equipped at each graduation mark, it is described every
Diversion pipe is equipped at a overflow hole, each water conservancy diversion pipe end is provided with the collection sample bottle being detachably connected.
Further, the triangular-notch weir main body includes weir plate, and the top of the weir plate is provided with triangle crest of weir, the weir plate
Bottom be arranged in the soil layer below of canal bottom.
Further, the two sides of the triangular-notch weir main body are provided with support frame, are equipped with and are used on support frame as described above
Measure the liquidometer of height of water level in triangular-notch weir.
Further, each overflow hole is equipped with the filter screen for preventing from blocking overflow hole.
Compared with prior art, the utility model has the beneficial effects that the device is set in the different height of triangular-notch weir main body
There is graduation mark, overflow hole is equipped at each graduation mark, diversion pipe is equipped at each overflow hole, each water conservancy diversion pipe end is all provided with
It is equipped with the collection sample bottle being detachably connected；When the flow by triangular-notch weir main body increases to the overflow hole of certain altitude, water flow meeting
Naturally it flows into collection sample bottle, the sample of different flow can be collected in this way, the quality of its suspended load is known by analysis sample, because
This, the present apparatus can effectively obtain semiarid zone especially Loess Plateau small watershed under different flow under rain fall
Sample, and its suspended load feature can be analyzed, equipment cost is low, and reliability is high, has certain popularization in research soil erosion field
Value.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram of the triangular-notch weir device for being suitable for the measurement of small watershed suspended load of the utility model.
Wherein, 1- triangular-notch weir main body；2- graduation mark；3- overflow hole；4- liquidometer；5- support frame；6- diversion pipe；7- collection sample
Bottle.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing and have
The utility model is described in further detail for body embodiment.
As shown in Figure 1, a kind of triangular-notch weir device suitable for the measurement of small watershed suspended load, described device includes triangular-notch weir master
Body 1 is provided with the graduation mark 2 for identifying different flow in the triangular-notch weir main body 1, is equipped at each graduation mark 2
Overflow hole 3 is equipped with diversion pipe 6 at each overflow hole 3, and each 6 end of diversion pipe, which is provided with, to be detachably connected
Collection sample bottle 7.
In the present embodiment, triangular-notch weir in the prior art is can be used in the triangular-notch weir main body 1 comprising weir plate, the weir
The top of plate is provided with triangle crest of weir, and the bottom of the weir plate is arranged in the soil layer below of canal bottom.
In the present embodiment, there is 6 sum aggregate sample bottle 7 of diversion pipe on each overflow hole 3, is rough schematic view, in attached drawing
In only draw one of them and be indicated.
In the present embodiment, the two sides of the triangular-notch weir main body 1 are provided with support frame 5, are equipped on support frame as described above 5
Liquidometer 4.The height of water level by triangle crest of weir can be monitored in real time in the liquidometer 4, can also measure different time
Flow, can in record set sample bottle 7 acquisition sample time, which can cooperate rainfall gauge, mud level meter comprehensive analysis to go out
Erosion amount can also analyze suspended load qualitative character and deposition with the variation relation of rainfall and flow.
Stop large-sized object in order to prevent and block overflow hole 3, each overflow hole 3 is equipped with excessive for preventing from blocking
The filter screen of discharge orifice 3.
For the present apparatus when water flow flows through triangle crest of weir, flow is bigger, and its height is higher, and quarter is identified above in triangular-notch weir main body 1
Line 2 is spent, and has overflow hole 3 on different graduation marks 2, when water flow increases to the overflow hole 3 of a certain height, water flow is certainly
The collection sample bottle 7 for so entering fixed volume by diversion pipe 6, when collection sample bottle 7 is filled with liquid, water level is will rise naturally to higher
Overflow hole 3, the device can only collect water sample when reaching a certain height during liquid level increases, be mainly used for obtaining every rain
The sampling of different flow, thus collect sample bottle 7 be it is detachable and interchangeable, disassembly can be manually carried out after each rain and withdraws sample, and is installed
New collection sample bottle 7.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (4)
1. a kind of triangular-notch weir device suitable for the measurement of small watershed suspended load, which is characterized in that described device includes triangular-notch weir master
Body is provided with the graduation mark for identifying different flow in the triangular-notch weir main body, is equipped with overflow at each graduation mark
Hole is equipped with diversion pipe at each overflow hole, and each water conservancy diversion pipe end is provided with the collection sample bottle being detachably connected.
2. the triangular-notch weir device suitable for the measurement of small watershed suspended load as described in claim 1, which is characterized in that the triangle
Weir main body includes weir plate, and the top of the weir plate is provided with triangle crest of weir, and the bottom of the weir plate is arranged in canal bottom soil below
In layer.
3. the triangular-notch weir device suitable for the measurement of small watershed suspended load as claimed in claim 1 or 2, which is characterized in that described
Each overflow hole is equipped with the filter screen for preventing from blocking overflow hole.
4. the triangular-notch weir device suitable for the measurement of small watershed suspended load as claimed in claim 3, which is characterized in that described three
The two sides of angle weir main body are provided with support frame, and the liquid level for measuring height of water level in triangular-notch weir is equipped on support frame as described above
Meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821837203.6U CN208984406U (en) | 2018-11-08 | 2018-11-08 | A kind of triangular-notch weir device suitable for the measurement of small watershed suspended load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821837203.6U CN208984406U (en) | 2018-11-08 | 2018-11-08 | A kind of triangular-notch weir device suitable for the measurement of small watershed suspended load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208984406U true CN208984406U (en) | 2019-06-14 |
Family
ID=66790582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821837203.6U Expired - Fee Related CN208984406U (en) | 2018-11-08 | 2018-11-08 | A kind of triangular-notch weir device suitable for the measurement of small watershed suspended load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208984406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272982A (en) * | 2020-03-11 | 2020-06-12 | 黄河水利委员会黄河水利科学研究院 | Method and device for analyzing topographic features of arsenicum sablimatum region |
-
2018
- 2018-11-08 CN CN201821837203.6U patent/CN208984406U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272982A (en) * | 2020-03-11 | 2020-06-12 | 黄河水利委员会黄河水利科学研究院 | Method and device for analyzing topographic features of arsenicum sablimatum region |
| CN111272982B (en) * | 2020-03-11 | 2022-05-03 | 黄河水利委员会黄河水利科学研究院 | Method and device for analyzing topographic features of arsenicum sablimatum region |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190614 Termination date: 20191108 |