CN213874562U - Float type measuring weir seepage flow measuring device - Google Patents
Float type measuring weir seepage flow measuring device Download PDFInfo
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- CN213874562U CN213874562U CN202022937588.7U CN202022937588U CN213874562U CN 213874562 U CN213874562 U CN 213874562U CN 202022937588 U CN202022937588 U CN 202022937588U CN 213874562 U CN213874562 U CN 213874562U
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Abstract
The utility model provides a float formula weir seepage flow measuring device, includes graduated flask formula grating chi, and graduated flask formula grating chi is used for fixing on the weir groove lateral wall through the fixed bolster, is equipped with cursory formula reading pole in the graduated flask formula grating chi, and cursory formula reading pole bottom is equipped with cursory, and cursory formula reading pole top is equipped with the float bar, is equipped with on the float bar and reads the needle. The utility model is used for the weir groove water level of accurate reading weir, it has solved external environment and has caused the surface of water undulant and artificial sight can't and surface of water chi or water level measuring stylus scale parallel and level and have visual error, has improved water level measurement accuracy, has ensured the degree of accuracy of seepage flow calculation.
Description
Technical Field
The utility model belongs to the technical field of hydraulic engineering measures, in particular to float formula weir seepage flow measuring device.
Background
After the dam is built for water storage, the water level difference between the front and the back of the dam generates water pressure load to the dam body, and the dam body, the dam foundation, the dam abutment and the like generate seepage under the action of the water pressure load. According to the national relevant standard requirements, the seepage water quantity of the dam body, the dam foundation, the dam abutment and the like needs to be monitored. Seepage monitoring is one of important projects for dam safety monitoring, once a seepage abnormal phenomenon occurs in a dam, the dam is indicated to be in a dangerous case, and the seepage monitoring is an important guarantee for the safe operation of the dam. The measuring weir is an important facility for monitoring the seepage flow of the dam, the observation precision of the measuring weir plays a decisive role in the accurate calculation of the seepage flow and is very important for determining whether the dam operates safely or not.
At present, a commonly used measuring weir measuring device generally adopts manual measurement or automatic measurement, and because the influence of an external environment cannot be automatically eliminated by the automatic measurement, data is regularly acquired or the seepage flow with larger error is obtained. Can get rid of the interference of rivers unsmooth grade part external environment through artifical the measurement, nevertheless when reading the water gauge or the water level pointer scale that the surface of water corresponds in the weir groove, because receive external environment influence, and the sight can't and water level scale parallel and level and have visual error, lead to unable accurate acquisition measured data to the accuracy of weir seepage flow calculation is crossed in the influence.
Disclosure of Invention
In view of the technical problem that the background art exists, the utility model provides a float-type measuring weir seepage flow measuring device for the weir groove water level of measuring weir is read to the accuracy, and it has solved external environment and has caused the surface of water undulant and artificial sight can't have visual error with surface of water gauge or water level measuring stylus scale parallel and level, has improved the water level measurement precision, has ensured the degree of accuracy that the seepage flow calculated.
In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:
the utility model provides a float formula weir seepage flow measuring device, includes graduated flask formula grating chi, and graduated flask formula grating chi is used for fixing on the weir groove lateral wall through the fixed bolster, is equipped with cursory formula reading pole in the graduated flask formula grating chi, and cursory formula reading pole bottom is equipped with cursory, and cursory formula reading pole top is equipped with the float bar, is equipped with on the float bar and reads the needle.
In the preferred scheme, the top of the measuring cylinder type grating ruler is provided with a vertical auxiliary ring, the floating rod penetrates through the center of the vertical auxiliary ring, and the floating rod and the vertical auxiliary ring are coaxially arranged.
In the preferable scheme, the measuring cylinder type grating ruler is vertically arranged on the side wall of the weir trough, and the vertical error is not more than 1 degree.
In the preferred scheme, the precision of the measuring cylinder type grating ruler is +/-0.1 mm.
In a preferable scheme, the diameter of the needle reading tip is not more than 0.5 mm.
In the preferred scheme, the floating rod is a hollow light plastic pipe, and the floating rod and the float are concentrically bonded.
In a preferable scheme, the vertical auxiliary circular ring is connected with the measuring cylinder type grating ruler in a bonding mode.
This patent can reach following beneficial effect:
this device can be convenient for artifical accurate reading weir groove water level of weir, has solved external environment and has caused the surface of water undulant and artifical sight can't and weir groove water face and water gauge or water level pointer scale parallel and level and have the problem of visual error, has improved water level measurement accuracy, has ensured the degree of accuracy of seepage flow calculation. Through above-mentioned measuring weir seepage flow measuring device, can effectively eliminate the measuring error problem that visual angle error and surge etc. external environment caused for the measuration of seepage flow is more accurate.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a schematic view of the installation of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the figure: 1-weir wall of a measuring weir, 2-floating reading rod, 3-measuring cylinder grating ruler, 4-floating rod, 5-reading needle, 6-floating, 7-vertical auxiliary ring and 8-fixed support.
Detailed Description
The preferred scheme is as shown in fig. 1 and fig. 2, a float type measuring weir seepage flow measuring device, including graduated cylinder grating chi 3, graduated cylinder grating chi 3 is used for fixing on measuring weir trough lateral wall 1 through fixed bolster 8, is equipped with cursory formula reading rod 2 in the graduated cylinder grating chi 3, and cursory formula reading rod 2 bottom is equipped with cursory 6, and cursory formula reading rod 2 top is equipped with buoy 4, is equipped with on the buoy 4 and reads needle 5.
The floating reading rod 2 freely floats up and down due to the water level change of the weir groove of the water measuring weir, and reads the water head on the weir of the water measuring weir through the reading needle 5, so that the flow of the water measuring weir is calculated. The length of the measuring cylinder type grating ruler 3 and the length of the floating type reading rod 2 meet the horizontal observation requirement of sight, so that data can be read conveniently, and the visual angle error can be effectively eliminated. Through adopting foretell structural design, guaranteed through the accurate measurement weir trough water bit data of cursory formula reading pole 2.
Furthermore, the top of the graduated cylinder type grating ruler 3 is provided with a vertical auxiliary ring 7, the floating rod 4 penetrates through the center of the vertical auxiliary ring 7, and the floating rod 4 and the vertical auxiliary ring 7 are coaxially arranged.
Further, the graduated cylinder type grating ruler 3 is vertically arranged on the side wall 1 of the weir trough of the measuring weir, and the vertical error is not more than 1 degree.
Further, the precision of the cylinder type grating ruler 3 is +/-0.1 mm.
Further, the diameter of the tip of the reading needle 5 is not more than 0.5 mm. The reading needle 5 and the fixed support 8 are both made of stainless steel. Through the installation and the precision requirement, the free sinking and floating of the floating reading rod 2 are ensured, and the measurement precision of the reading needle 5 is further ensured.
Furthermore, the floating rod 4 is a hollow light plastic pipe, and the floating rod 4 and the float 6 are concentrically bonded.
Further, the vertical auxiliary ring 7 is bonded with the measuring cylinder type grating ruler 3. The floating reading rod 2 can be maintained by disassembling it.
The working principle of the whole device is as follows:
1) and the measuring cylinder type grating ruler 3 is vertically fixed on the side wall 1 of the weir trough through a fixed support, and the vertical error of the measuring cylinder type grating ruler 3 is not more than 1 degree for ensuring the measurement precision.
2) The floating reading rod 2 is inserted into the measuring cylinder type grating ruler 3, the vertical auxiliary circular ring 7 is bonded and fixed on the upper part of the measuring cylinder type grating ruler 3, and the floating rod 4 penetrates out of the middle hole of the vertical auxiliary circular ring 7.
3) And when the zero point and the high point of the water head are detected, the reading needle 5 corresponds to the scales of the measuring cylinder type grating ruler 3, and the water head H on the weir is accurately calculated.
4) According to a calculation formula of the seepage flow of the right-angle triangular weir, Q =1.4 multiplied by H2.5And accurately calculating the overflow of the measuring weir at the observation time point.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (7)
1. The utility model provides a float formula weir seepage flow measuring device which characterized in that: the measuring cylinder type grating ruler comprises a measuring cylinder type grating ruler (3), wherein the measuring cylinder type grating ruler (3) is used for being fixed on a weir groove side wall (1) of a measuring weir through a fixed support (8), a floating reading rod (2) is arranged in the measuring cylinder type grating ruler (3), a floater (6) is arranged at the bottom of the floating reading rod (2), a floating rod (4) is arranged at the top of the floating reading rod (2), and a reading needle (5) is arranged on the floating rod (4).
2. The float-type weir seepage flow measuring device according to claim 1, characterized in that: the top of the measuring cylinder type grating ruler (3) is provided with a vertical auxiliary ring (7), the floating rod (4) penetrates through the center of the vertical auxiliary ring (7), and the floating rod (4) and the vertical auxiliary ring (7) are coaxially arranged.
3. The float-type weir seepage flow measuring device according to claim 1, characterized in that: the graduated cylinder type grating ruler (3) is vertically arranged on the side wall (1) of the weir trough, and the vertical error is not more than 1 degree.
4. The float-type weir seepage flow measuring device according to claim 1, characterized in that: the precision of the measuring cylinder type grating ruler (3) is +/-0.1 mm.
5. The float-type weir seepage flow measuring device according to claim 1, characterized in that: the diameter of the needle point of the reading needle (5) is not more than 0.5 mm.
6. The float-type weir seepage flow measuring device according to claim 1, characterized in that: the floating rod (4) is a hollow light plastic pipe, and the floating rod (4) and the buoy (6) are concentrically bonded.
7. The float-type weir seepage flow measuring device according to claim 1, characterized in that: the vertical auxiliary circular ring (7) is connected with the measuring cylinder type grating ruler (3) in a bonding way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022937588.7U CN213874562U (en) | 2020-12-10 | 2020-12-10 | Float type measuring weir seepage flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022937588.7U CN213874562U (en) | 2020-12-10 | 2020-12-10 | Float type measuring weir seepage flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213874562U true CN213874562U (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022937588.7U Active CN213874562U (en) | 2020-12-10 | 2020-12-10 | Float type measuring weir seepage flow measuring device |
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| Country | Link |
|---|---|
| CN (1) | CN213874562U (en) |
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- 2020-12-10 CN CN202022937588.7U patent/CN213874562U/en active Active
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