CN213715485U - Exempt from to transfer rain gauge tipping bucket subassembly, exempt from to transfer tipping bucket formula rain gauge - Google Patents
Exempt from to transfer rain gauge tipping bucket subassembly, exempt from to transfer tipping bucket formula rain gauge Download PDFInfo
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- CN213715485U CN213715485U CN202022693842.3U CN202022693842U CN213715485U CN 213715485 U CN213715485 U CN 213715485U CN 202022693842 U CN202022693842 U CN 202022693842U CN 213715485 U CN213715485 U CN 213715485U
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Abstract
The utility model discloses an exempt from to transfer rain gauge tipping bucket subassembly, exempt from to transfer tipping bucket formula rain gauge mainly includes: the tipping bucket comprises a tipping bucket bracket, a tipping bucket and a tipping bucket bearing, wherein the tipping bucket bearing is positioned at the bottom of the tipping bucket; one side of the tipping bucket is provided with a raised titration limiting end, the titration limiting end and the tipping bucket bearing are both positioned on the vertical central line of the tipping bucket, one side surface of the tipping bucket support is provided with a fan-shaped groove, the tipping bucket bearing penetrates through the two sides of the tipping bucket support and drives the tipping bucket to rotate, the tipping bucket bearing penetrates through the circle center of the fan-shaped groove of the tipping bucket support, and the titration limiting end rotates in the fan-shaped groove on the tipping bucket support. This scheme improves current tipping bucket subassembly structure and tipping bucket upset principle, can quantify the tipping bucket and empty the number of times, need not carry out the nut and adjust, practices thrift rain gauge adjustment time greatly, and changes limit nut atress direction, avoids the operation in-process because of not hard up hidden danger that shifts, guarantees to measure accurately, can significantly reduce simultaneously and act on the periodic force on rain gauge basis, improve equipment reliability.
Description
Technical Field
The utility model relates to a rainfall measuring tool, concretely relates to exempt from to transfer rain gauge tipping bucket subassembly, exempt from to transfer tipping bucket formula rain gauge.
Background
At present, the tipping bucket type rainfall with wider application range is characterized in that rainwater enters a water receiver from a water receiving port at the uppermost end and flows into the tipping bucket after falling into a water diversion funnel, the tipping bucket is fixed on a tipping bucket support through a tipping bucket bearing, the height of a bolt of the tipping bucket is adjusted through inclination angle adjusting devices at two sides of the tipping bucket to determine the tipping bucket inclination angle of the tipping bucket and the central line of the tipping bucket support, and when the accumulated water volume reaches a certain height, the tipping bucket is turned over out in a loss of balance. And each time the tipping bucket topples, the switch is switched on, a pulse signal is transmitted to the recorder, the recorder records the rainfall, and the rainfall process can be measured by repeating the steps.
When the tipping bucket type rainfall is adjusted, a special rainfall measuring cylinder is used for measuring clear water and slowly dumping the clear water into the tipping bucket, when the tipping bucket is about to be turned over and is not turned over, a dropper is used for adding the clear water into the tipping bucket one drop by one until the tipping bucket turns over, and the tipping bucket turning times and water consumption are recorded through repeated tests; if the tipping bucket is overturned for multiple times and the water consumption is within the specified threshold value range, the dip angle base point of the tipping bucket of the instrument can be determined to be normal without adjustment; when the water pouring amount is larger than the threshold range, the tipping bucket inclination angle is too large, and the height of the adjusting screw is properly increased; when the water pouring amount is smaller than the threshold range, the tipping bucket inclination angle is too small, and the height of the adjusting screw is properly reduced.
The prior tipping bucket type rain gauge is insufficient:
1. the required rainfall adjustment position cannot be quantitatively set at one time, and the rainfall adjustment can be completed only by adjusting for many times.
2. The adjusting bolts of the inclination angle adjusting devices on the two sides of the tipping bucket are used as limiting devices, when the tipping bucket topples over, the direction of acting force acting on the adjusting nuts is overlapped with the axis of the bolts, so that the adjusting nuts are displaced in the vertical direction after running for a period of time, the measured value of the rain gauge is large, the rain gauge needs to be titrated again, and the maintenance workload of the rain gauge is increased;
3. the periodic force acting on the basis of the rain gauge is large, so that the overall stability of the rain gauge is poor.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model relates to an exempt from to transfer tipping bucket formula rainfall subassembly and exempt from to transfer tipping bucket formula rain gauge based on this subassembly improves tipping bucket subassembly structure and tipping bucket upset principle, can quantify the tipping bucket and empty the number of times, need not carry out the nut and adjust, practice thrift rain gauge adjust time greatly, guarantee to measure accurate and reduce the maintenance work, reduce the periodic force of effect on rain gauge basis simultaneously, improve equipment reliability.
The utility model discloses a following technical scheme realizes:
the utility model provides an exempt from to transfer hyetometer tipping bucket subassembly mainly includes: the tipping bucket comprises a tipping bucket bracket, a tipping bucket and a tipping bucket bearing, wherein the tipping bucket bearing is positioned at the bottom of the tipping bucket; one side of the tipping bucket is provided with a raised titration limiting end, the titration limiting end and the tipping bucket bearing are both positioned on the vertical central line of the tipping bucket, one side surface of the tipping bucket support is provided with a fan-shaped groove, the tipping bucket bearing penetrates through the two sides of the tipping bucket support and drives the tipping bucket to rotate, the tipping bucket bearing penetrates through the circle center of the fan-shaped groove of the tipping bucket support, and the titration limiting end rotates in the fan-shaped groove on the tipping bucket support.
The further optimization scheme is that the distance between the end face center of the tipping bucket bearing and the end face center of the titration limiting end is R, the circumferential wrap angle of the fan-shaped groove is phi, the end diameter of the titration limiting end is R, and the overturning inclination angle a of the tipping bucket meets the following requirements:
the further optimization scheme is that the device further comprises a support bottom plate, and the support bottom plate is located at the bottom of the tipping bucket support and integrated with the tipping bucket support.
The further optimization scheme is that a partition plate is arranged in the middle of the tipping bucket and divides the tipping bucket into two independent water containing chambers.
Adopt the exempting from to transfer the tipping bucket formula rain gauge that rain gauge tipping bucket subassembly constitutes of the aforesaid, still include: the device comprises a water diversion funnel, a water receiving cup and a weighing device;
the center of the top of the tipping bucket support is provided with a water diversion hole, the water diversion funnel is arranged on the water diversion hole at the top of the tipping bucket support and connected with the water diversion hole, the two groups of water receiving cups are arranged on the left side and the right side of the tipping bucket, and the weighing device is arranged below the two groups of water receiving cups.
The working principle of the scheme is as follows:
the tipping bucket type rain gauge is mainly realized by combining a tipping bucket support, a tipping bucket and an inclination angle adjusting device, the tipping bucket inclination angle a determines the tipping bucket overturning times under given rainfall, the existing tipping bucket type rain gauge realizes the adjustment of the tipping bucket inclination angle a through the inclination angle adjusting device at the bottom of the two sides of the tipping bucket and the distance H from the inclination angle adjusting device to the tipping bucket when the tipping bucket is horizontal, and an adjusting bolt of the inclination angle adjusting device plays roles of adjusting and limiting.
When the dump-bucket rain gauge works, the moment F1 acting on the whole rain gauge base is expressed as:
F1＝M×ω2H (1)
wherein M is the total weight of the tipping bucket after water is contained; omega is the angular speed of the hopper turning, and H is the distance from the inclination angle adjusting device to the tipping bucket when the tipping bucket is horizontal;
F1a part of component force is downward along an adjusting bolt of the inclination angle adjusting device, the component force is superposed with the adjusting direction of the adjusting bolt, the adjusting bolt is easy to loosen under the action of periodic force vibration to cause the deflection of the adjusting bolt, the distance H from the inclination angle adjusting device to the tipping bucket is changed, the inclination angle a of the tipping bucket is further changed, and the rain gauge is inaccurate in counting;
the rain gauge tipping bucket assembly without regulation in the scheme is composed of a tipping bucket support with a fan-shaped groove, a tipping bucket and a titration bolt.
When the dump-bucket rain gauge works, the moment F2 acting on the whole rain gauge base is expressed as:
F2＝M×ω2r (2)
wherein M is the total weight of the tipping bucket after water is contained; omega is the angular velocity of the funnel turning; r is the diameter of the end face of the titration limiting end;
F2the titration limiting bolt is axially vertical to the titration limiting bolt, so that the limitation of looseness is avoided, and adjustment is not needed;
meanwhile, r in the formula 2 is far smaller than H in the formula 1, the force acting on the whole rain gauge base is greatly reduced, and the reliability of the device is improved.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model provides an exempt from to transfer rain gauge tipping bucket subassembly, exempt from to transfer tipping bucket formula rain gauge, improve current tipping bucket subassembly structure and tipping bucket upset principle, can quantify the tipping bucket and empty the number of times, need not carry out the nut and adjust, practice thrift rain gauge adjustment time greatly, and change limit nut atress direction, guarantee to have not because of not hard up hidden danger that shifts in the operation process, guarantee to measure accuracy and reduce maintenance work, the periodic force of effect on rain gauge basis that can significantly reduce simultaneously, improve equipment reliability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
In the drawings:
FIG. 1 is a structural diagram of a tipping bucket assembly of the rain gauge without adjustment;
FIG. 2 is a side view of a non-regulating rain gauge tip bucket support;
FIG. 3 is a front view of a bucket support of the rain gauge without adjustment;
FIG. 4 is a side view of a dump bucket of the rain gauge without adjustment;
FIG. 5 is a diagram showing a structure of a dump-bucket rain gauge according to the embodiment;
fig. 6 is a dump body turning state diagram.
In the drawings:
the method comprises the following steps of 1-tipping bearing, 2-tipping, 21-titration limiting end, 22-partition plate, 3-tipping support, 31-fan-shaped groove, 4-supporting bottom plate, 5-water diversion funnel, 6-tipping A, 7-tipping bearing A, 8-tipping support A, 9-inclination angle adjusting device, 10-drainage funnel and 11-supporting component.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
As shown in fig. 1-4, the non-regulating rain gauge tipping bucket assembly mainly comprises: the tipping bucket comprises a tipping bucket bracket 3, a tipping bucket 2 and a tipping bucket bearing 1, wherein the tipping bucket bearing 1 is positioned at the bottom of the tipping bucket 2; one side of the tipping bucket 2 is provided with a raised titration limiting end 21, the titration limiting end 21 and a tipping bucket bearing are both arranged on the vertical central line of the tipping bucket 2, one side of the tipping bucket support 3 is provided with symmetrical fan-shaped grooves 31, the tipping bucket bearing 1 penetrates through two sides of the tipping bucket support 3 and drives the tipping bucket 2 to rotate, the tipping bucket bearing 1 penetrates through the center of the fan-shaped grooves 31 of the tipping bucket support 3, and the titration limiting end 21 rotates in the fan-shaped grooves 31 on the tipping bucket support 3.
The distance between the end face center of the tipping bucket bearing 1 and the end face center of the titration limiting end 21 is R, the circumferential wrap angle of the fan-shaped groove is phi, the end diameter of the titration limiting end 21 is R, and the overturning inclination angle a of the tipping bucket 2 meets the following requirements:
the regulation-free tipping bucket type rain gauge formed by the regulation-free rain gauge tipping bucket component also comprises: a water diversion funnel, a water receiving cup and a weighing device 7;
the top center of the tipping bucket support 3 is provided with a water diversion hole, a water diversion funnel is arranged on the water diversion hole at the top of the tipping bucket support 3 and is connected with the water diversion hole, two groups of water receiving cups are arranged at the left side and the right side of the tipping bucket 2, and a weighing device is arranged below the two groups of water receiving cups.
Example 2
As shown in fig. 5, the operating principle of the tipping bucket type rainfall device is as follows: rainwater enters the water receiver from a water receiving port at the uppermost end of the supporting component 11 and flows into the tipping bucket A6 after falling into the water diversion funnel 5, the tipping bucket A6 is fixed on a tipping bucket support A8 through a tipping bucket bearing A7, the height of a bolt is adjusted through the inclination angle adjusting device 9 to determine the tipping bucket inclination angle a of the tipping bucket A6 and the tipping bucket support A8, and when the accumulated water volume reaches a certain height (such as 0.01 mm), the tipping bucket A loses balance and overturns. And each time the tipping bucket is dumped into the drainage funnel 10, the switch is switched on to send a pulse signal to the recorder, and the recorder controls the self-recording pen to record the rainfall, so that the rainfall process can be measured.
During adjustment, clear water with the thickness of 10mm is measured by a special rainfall measuring cylinder, the clear water is slowly poured into the tipping bucket through a water diversion funnel 5, when the tipping bucket A6 is about to turn over but not turn over, water injection is stopped, then a dropper is used for absorbing a plurality of clear water in the measuring cylinder, one drop is added into the tipping bucket A6 until the tipping bucket turns over A6, the test is repeated in sequence, and the turning times and the water consumption amount of the tipping bucket A6 are recorded; if the tipping bucket A6 is turned over for 20 times and the water consumption is 9.7-9.85 mm, the inclination angle base point of the tipping bucket of the instrument can be determined to be normal without adjustment; when the water pouring amount is larger than 9.85mm, the tipping bucket is over inclined angle, and the height of the adjusting screw is properly increased; when the water pouring amount is less than 9.7mm, the tipping bucket inclination angle is too small, and the height of the adjusting screw is properly reduced.
As shown in fig. 6, the tipping bucket inclination angle a determines the tipping bucket turning times under a given precipitation, and the tipping bucket type rain gauge realizes the adjustment of the tipping bucket inclination angle a by adjusting the distance H between the inclination adjusting device and the tipping bucket level, wherein the adjusting bolt of the inclination adjusting device plays a role in adjustment and limiting. In the adjustment triangle Δ OAB:
wherein H is the vertical distance between the limiting point of the dumping device and the horizontal position of the tipping bucket;
l is the distance from the center of the bearing to the limit point of the dumping device;
and a is the tipping bucket inclination angle.
Periodic forces acting on the entire rain gauge basis:
F1＝M×ω2H (1)
wherein M is the total weight of the tipping bucket after water is contained, F1The component force is axially overlapped with the dumping adjusting bolt, and under the action of periodic force vibration, the adjusting bolt is easy to loosen, so that the adjusting bolt is displaced, the height H is changed, the inclination angle a of the tipping bucket is further changed, and the rain gauge is inaccurate in counting.
The utility model relates to a tipping bucket component of a non-adjusting rain gauge, which comprises a tipping bucket bracket with fan-shaped grooves, a tipping bucket bearing, a tipping bucket and a titration bolt;
adjusting the triangle as Δ OO in FIG. 61C:
Wherein: phi is the circumferential wrap angle of the fan-shaped groove taking the center of the tipping bucket bearing as the original center;
r is the diameter of the limit end of the titration limit bolt;
r is the distance between the center of the tipping bucket bearing and the center of the titration limit bolt;
and a is the tipping bucket inclination angle.
The periodic force acting on the basis of the modified rain gauge is
F2＝M×ω2r (2)
F2And the titration limiting bolt is axially vertical, so that the looseness of the titration limiting bolt is not caused, the adjustment is not needed, meanwhile, the r can be far smaller than H in the formula 2, the periodic force acting on the whole rain gauge base is greatly reduced, and the reliability of equipment is improved.
For a tipping bucket type rain gauge, the tipping bucket inclination angle a of the tipping bucket with the tipping bucket overturning times under the given rainfall is fixed, and the requirement of different tipping bucket inclination angles a is realized by selecting a proper fan-shaped groove circumferential wrap angle phi and the distance R between the tipping bucket bearing center and the center of a titration limit bolt and designing the titration bolt limit end heads with different diameters.
And (3) selecting a corresponding fan-shaped groove circumferential wrap angle phi and a distance R between the center of the tipping bearing and the center of the titration limit bolt at a given tipping bucket included angle a, and calculating to obtain the diameter R of the limit end of the titration bolt through a formula 3. It can be seen that R of the integer sequence can be obtained by reasonably selecting phi and R.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A rain gauge free tipping bucket assembly mainly comprises: the tipping bucket comprises a tipping bucket support (3), a tipping bucket (2) and a tipping bucket bearing (1), wherein the tipping bucket bearing (1) is positioned at the bottom of the tipping bucket (2); the automatic titration device is characterized in that a raised titration limiting end (21) is arranged on one side of the tipping bucket (2), the titration limiting end (21) and a tipping bucket bearing are both positioned on a vertical middle line of the tipping bucket (2), symmetrical fan-shaped grooves (31) are arranged on one side of the tipping bucket support (3), the tipping bucket bearing (1) penetrates through two sides of the tipping bucket support (3) and drives the tipping bucket (2) to rotate, the tipping bucket bearing (1) penetrates through the circle center of the fan-shaped grooves (31) of the tipping bucket support (3), and the titration limiting end (21) rotates in the fan-shaped grooves (31) on two sides of the tipping bucket support (3).
2. The no-adjustment rain gauge tipping bucket assembly according to claim 1, wherein the distance between the end face center of the tipping bucket bearing (1) and the end face center of the titration limiting end head (21) is R, the circumferential wrap angle of the fan-shaped groove is phi, the end diameter of the titration limiting end head (21) is R, and the overturning inclination angle a of the tipping bucket (2) satisfies the following conditions:
3. a non-regulating pluviometer dump bucket assembly according to claim 1, further comprising a support base plate (4), the support base plate (4) being located at the bottom of the dump bucket support (3) and being integral with the dump bucket support (3).
4. The non-regulating rain gauge tipping bucket assembly according to claim 1, wherein a partition plate (22) is arranged in the middle of the tipping bucket (2), and the tipping bucket (2) is divided into two independent water containing chambers by the partition plate (22).
5. The adjustment-free tipping bucket rain gauge formed by the adjustment-free tipping bucket assembly of any one of claims 1 to 4 is characterized by further comprising: the device comprises a water diversion funnel, a drainage assembly and a weighing and metering assembly;
the center of the top of the tipping bucket support (3) is provided with a water diversion hole, a water diversion funnel is arranged at the water diversion hole at the top of the tipping bucket support (3), two groups of drainage components are arranged at the left side and the right side of the tipping bucket (2), and a weighing and metering component is connected with the drainage components.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022693842.3U CN213715485U (en) | 2020-11-19 | 2020-11-19 | Exempt from to transfer rain gauge tipping bucket subassembly, exempt from to transfer tipping bucket formula rain gauge |
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| CN202022693842.3U CN213715485U (en) | 2020-11-19 | 2020-11-19 | Exempt from to transfer rain gauge tipping bucket subassembly, exempt from to transfer tipping bucket formula rain gauge |
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| CN213715485U true CN213715485U (en) | 2021-07-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117891008A (en) * | 2024-03-15 | 2024-04-16 | 江西省气象探测中心 | Rainfall sensor adjusting method |
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2020
- 2020-11-19 CN CN202022693842.3U patent/CN213715485U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117891008A (en) * | 2024-03-15 | 2024-04-16 | 江西省气象探测中心 | Rainfall sensor adjusting method |
| CN117891008B (en) * | 2024-03-15 | 2024-05-17 | 江西省气象探测中心 | Rainfall sensor adjusting method |
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