Tipping bucket rain gauge

Abstract

The utility model discloses a tipping bucket rain gauge, and relates to the technical field of rain gauges. The device comprises a bottom plate, a plurality of supporting legs are fixedly connected to the bottom surface of the bottom plate, and a plurality of water passing grooves are formed in the top end of the bottom plate; a water taking assembly is installed at the top end of the bottom plate and comprises a water bearing sieve tray and a water filtering piece. A base is fixedly connected to the top end of the bottom plate. A balancing table is arranged on the top face of the base. A tipping bucket assembly is installed at the top end of the balance table and comprises a tipping bucket piece. And one side, close to the tipping bucket piece, of the top end of each water collecting barrel is downwards inclined. According to the utility model, the two filtering layers with different filtering functions are arranged according to the diversity of the use environment of the pluviometer, and the measurement precision is improved by arranging the water passing groove, the balancing platform, the bevel water collecting cylinder and the balancing weight in the pluviometer.

Description

Technical Field

[0001] The utility model belongs to the technical field of rain gauges, and in particular relates to a tipping bucket rain gauge. Background Art

[0002] The tipping bucket rain gauge is a hydrological and meteorological instrument specially used to measure the rainfall in nature. Its main function is to convert the rainfall into digital information represented by switch quantity to meet various information transmission, processing, recording and display needs. It is widely used and is not only of great significance for meteorological, hydrological, oceanic and environmental observations, but also plays a key role in the safety of aviation and railway transportation.

[0003] A tipping bucket rain gauge is disclosed in the patent specification with announcement number CN219609258U, which includes a rain gauge assembly, which includes a base, a collecting frame, a metering cylinder, a protective structure and an opening. The collecting frame includes a movable door body, a rain collecting funnel, a drain pipe and a filter structure. A support column is installed on the inner bottom wall of the collecting frame, and the upper end of the support column is movably connected to a tipping bucket.

[0004] The shortcomings of this technical solution are: first, in the process of collecting rainwater, this rain gauge collects rainwater into the rain collecting funnel through the opening and filters it with a filter. This filtering method only performs a single filtration. However, the rain gauge is usually placed outdoors in rainy and snowy weather when in use. This type of weather is often mixed with a lot of wind. Single-layer filtration can only filter a small amount of fine impurities in the environment. When faced with large leaves mixed in wind and rain and accumulation of larger particles of gravel, the filter in the funnel will gradually become clogged over time, affecting the monitoring effect; secondly, the monitoring accuracy of the rain gauge is directly related to the turning accuracy of the tipping bucket. The tipping bucket of the rain gauge directly introduces water into the measuring cylinder after receiving the rain, and does not correct the initial state of the tipping bucket, resulting in poor measurement accuracy.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] The utility model aims to provide a tipping bucket rain gauge, and the technical problems to be solved are as follows: the existing rain gauge is easy to block the channel when facing larger-sized debris, and the tipping bucket has poor accuracy.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A tipping bucket rain gauge comprises a base plate, a plurality of supporting legs are fixedly connected to the bottom surface of the base plate, a plurality of water channels are arranged at the top of the base plate; a water intake assembly is installed at the top of the base plate, the water intake assembly comprises a water receiving sieve plate and a water filter; a base is fixedly connected to the top of the base plate, a balancing platform is arranged on the top surface of the base; a tipping bucket assembly is installed at the top of the balancing platform, the tipping bucket assembly comprises a tipping bucket member; water collecting cylinders are installed on both sides of the top of the base, and the top of the water collecting cylinder is inclined downward on one side close to the tipping bucket member.

[0009] As a further solution of the utility model: a positioning block is fixedly connected to the top of the bottom plate between each of the water channels, and the water intake assembly also includes an outer cylinder, and a clamping plate is fixedly connected to the inner part of the outer cylinder to fit the positioning block.

[0010] As a further solution of the utility model: the balancing platform includes at least three adjustment rods fixedly connected to the base, a balance board is installed between each of the adjustment rods, a level is installed on one side of the top of the balance board, and the adjustment rods include adjustment knobs and nuts.

[0011] As a further solution of the utility model: the tipping bucket assembly includes reed switches installed on both sides of the balance plate, the reed switches are electrically connected to a recorder, a tipping bucket frame is installed on the top of the balance plate between the two reed switches, a connecting rod is installed at the bottom of the tipping bucket frame, the tipping bucket member is rotatably connected to the connecting rod, and a funnel is installed on the top of the tipping bucket frame.

[0012] As a further solution of the utility model: the tipping bucket includes two symmetrically arranged triangular water collection chambers, a baffle is arranged between the two water collection chambers, counterweight blocks are fixedly connected to both sides of the top of the baffle, and the top is diamond-shaped, and water diversion tips are arranged at both ends of the tipping bucket.

[0013] As a further solution of the utility model: the water intake assembly also includes a water diversion funnel fixedly connected to the inside of the outer cylinder, the water filter is inserted into the bottom of the water diversion funnel, a plurality of secondary filter holes are evenly arranged on the surface of the water filter, and a vertical rod is fixedly connected in the middle, the water receiving sieve plate is inserted into the top of the outer cylinder, and a plurality of main filter holes are evenly arranged at the bottom of the water receiving sieve plate, and the diameter of the secondary filter holes is smaller than the diameter of the main filter holes.

[0014] Beneficial effects of the utility model:

[0015] 1. By installing the water intake assembly on the bottom plate, plugging the water receiving sieve plate on the top of the water intake assembly, plugging the water filter at the bottom of the outer cylinder of the water intake assembly, and setting the primary and secondary sieve holes on the water receiving sieve plate and the water filter in different specifications, the tipping bucket assembly set on the bottom plate base can obtain stable and relatively clean rainwater, and the stable installation between the positioning block and the outer cylinder ensures that the rain gauge can adapt to the detection work in various measurement environments;

[0016] 2. A water trough is set on the bottom plate to avoid the accumulation of splashing water interfering with the test results, and a balance table is set between the base and the tipping bucket assembly. The horizontal correction of the balance table ensures the instant adjustment of the horizontal working state during field testing. At the same time, an oblique water collection cylinder to prevent external splashing and a water diversion tip to facilitate water pouring are set. The counterweight block is used to quickly flip the tipping bucket, which comprehensively improves the accuracy of data collection during the test and improves the test accuracy. The water intake assembly can adapt to a variety of test environments, so that the rain gauge can adapt to stable and accurate detection tasks in a variety of scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a half-section of the outer cylinder of the utility model;

[0020] Figure 3 This utility model Figure 2 A magnified detail of the center point A;

[0021] Figure 4 This utility model Figure 2 A magnified view of the detail at B in the middle;

[0022] Figure 5 This utility model Figure 2 Enlarged detail of point C in the middle.

[0023] In the figure: 1. bottom plate; 2. supporting feet; 3. water trough; 4. water intake assembly; 41. water receiving sieve plate; 42. water filter; 43. outer cylinder; 44. water diversion funnel; 5. base; 6. balance table; 61. adjustment rod; 62. balance board; 63. spirit level; 7. tipping bucket assembly; 71. reed switch; 72. tipping bucket frame; 73. connecting rod; 74. tipping bucket piece; 75. funnel; 76. water diversion tip; 8. water collecting cylinder; 9. positioning block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 5 As shown, a tipping bucket rain gauge includes a base plate 1, three supporting legs 2 are fixedly connected to the bottom surface of the base plate 1, and a threaded interface is arranged on the outer side of each supporting leg 2. Since the rain gauge is usually used in a harsh environment and needs to maintain sufficient stability in this environment, a threaded interface is arranged at the supporting leg 2 to facilitate locking during installation, thereby indirectly improving the measurement accuracy. Three arc-shaped water channels 3 are arranged along the circumferential side surface at the top of the base plate 1, and a water intake assembly 4 is installed between the outer sides of each water channel 3 at the top of the base plate 1. The water intake assembly 4 includes a water receiving sieve plate 41 and a water filter 42. The top of the base plate 1 is fixedly connected to a base 5, a balancing platform 6 is arranged on the top surface of the base 5, a tipping bucket assembly 7 is installed on the top of the balancing platform 6, and the tipping bucket assembly 7 includes a tipping bucket member 74. Water collecting cylinders 8 are installed on both sides of the top of the base 5 to adapt to the tipping bucket member 74, and the top of the water collecting cylinder 8 is inclined downward toward the adjacent end of the tipping bucket member 74.

[0026] like Figure 2 As shown, the top of the bottom plate 1 is fixedly connected with the positioning blocks 9 between each water groove 3, and the water intake component 4 also includes an outer cylinder 43 clamped with each positioning block 9, and the inner wall of the outer cylinder 43 is located on the outer side of the adjacent water groove 3; that is, when installing the outer cylinder 43, the positioning block 9 on the bottom plate 1 can be inserted and limited by the clamping plate on the bottom surface of the inner wall of the outer cylinder 43, so as to achieve the effect of fixing the outer cylinder 43. In addition, the tipping bucket type rain gauge cannot avoid water droplet splashing during the process of rainwater collection by the water intake component 4. This small amount of water is discharged in time through each water groove 3 to avoid interference with the measurement, so as to improve the measurement accuracy. At the same time, the closure of the outer cylinder 43 also prevents rainwater from entering the device from the side and affecting the measurement.

[0027] The balancing platform 6 includes three adjustment rods 61 fixedly connected to the base 5, a balancing plate 62 is installed between the adjustment rods 61, and a level 63 is installed on one side of the top of the balancing plate 62; specifically, the adjustment rod 61 includes an adjustment knob arranged on the bottom surface of the balancing plate 62 and a nut on the top, that is, during the preparation work for the use of the rain gauge, the staff adjusts the horizontality of the balancing plate 62 by turning each adjustment knob and nut in turn, and observes and corrects it through the level 63, thereby providing a horizontality correction function for the tipping bucket assembly 7 on the balancing platform 6, and providing a supporting basis for the accuracy of the field measurement data of the rain gauge.

[0028] like Figure 2 , Figure 4 and Figure 5 As shown, the tipping bucket assembly 7 includes a reed switch 71 installed on both sides of the balance plate 62. The reed switch 71 is used to connect with a recorder (not shown) in the rain gauge. The recorder includes a counter, a self-recording clock and a controller, and is electrically connected to the reed switch 71. A tipping bucket frame 72 is installed at the top of the balance plate 62 between the two reed switches 71. A connecting rod 73 is installed at the bottom of the tipping bucket frame 72. A tipping bucket member 74 is rotatably connected to the connecting rod 73. A funnel 75 is installed at the top of the tipping bucket frame 72.

[0029] Further, the tipping bucket 74 includes two symmetrically arranged triangular water collection chambers, and a baffle is arranged between the two water collection chambers. When the tipping bucket 74 is in a horizontal state, the water outlet at the bottom of the funnel 75 is located directly above the baffle. Further (see Figure 4 ), the top of the baffle is fixedly connected to the counterweights on both sides, and the top of the baffle is rhombus-shaped, and the two ends of the tipping bucket 74 are provided with water diversion tips 76;

[0030] It should be noted that, since the funnel 75 is located directly above the tipping bucket 74, when rainwater initially falls in, it will fall into the water collection chambers on both sides along the diamond-shaped surface. When the amount of water falling into the water collection chamber on one side is large, the tipping bucket 74 is slightly tilted. Due to the huge inertia of the counterweight block on the top, the tipping bucket 74 can be assisted to tip toward the heavier side faster and more neatly, and collide with the reed switch 71 at the bottom. After the collision, the reed switch 71 on the side where the collision is located will record the collision as an electrical signal and transmit it to the recorder. Since the tipping bucket 74 is in a tilted state at this time, after the collision, the fallen water in it will be dumped into the water collection barrel 8 on the adjacent side. Since the water collecting tube 8 is higher away from the pouring direction, it can effectively prevent the splashing of collected water. At the same time, due to the existence of the water inlet tip 76, the residual water will not remain in the water collecting chamber due to surface tension, but will fall completely into the water collecting tube 8 along the water inlet tip 76, thereby ensuring the accuracy of the collected water each time. After pouring, the water collecting chamber on the other side still has water in it, so it presses down the water collecting chamber on one side that has just been emptied, thereby transferring the collected water to the water collecting tube 8 on the other side, and then restores the balance and repeats the process. The staff can measure the detailed rainfall data by recording the water collection amount in the water collecting tubes 8 at both ends and the electrical signal in the recorder.

[0031] like Figure 2 and Figure 3As shown, the water intake assembly 4 also includes a water diversion funnel 44 fixedly connected to the inside of the outer cylinder 43, a water filter 42 is plugged into the bottom of the water diversion funnel 44, and the water filter 42 is located directly above the funnel 75, a large number of secondary filter holes are evenly arranged on the surface of the water filter 42, and for the convenience of disassembly and assembly, a vertical rod is fixedly connected in the middle, a water receiving sieve plate 41 is plugged into the top of the outer cylinder 43, and a large number of main filter holes are evenly arranged at the bottom of the water receiving sieve plate 41, and the diameter of the secondary filter hole is smaller than the diameter of the main filter hole;

[0032] It should be noted that when the rain gauge is used for measurement in an environment with strong winds, larger particles of gravel and larger fallen leaves in the wind are blocked by the water-receiving sieve plate 41, and rain containing a small amount of fine impurities enters the water filter 42 through the water diversion funnel 44, and is filtered by the secondary filter holes with smaller diameters, and finally falls into the funnel 75. Through double and layered filtration, combined with a more precise internal measurement structure, the rain gauge can more accurately and stably adapt to measurement work in a variety of environments.

[0033] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A tipping bucket rain gauge, comprising a base plate (1), a plurality of supporting legs (2) being fixedly connected to the bottom surface of the base plate (1), characterized in that: A plurality of water channels (3) are arranged at the top of the bottom plate (1); a water intake assembly (4) is installed at the top of the bottom plate (1), and the water intake assembly (4) comprises a water receiving sieve plate (41) and a water filter (42); a base (5) is fixedly connected to the top of the bottom plate (1), and a balancing platform (6) is arranged on the top surface of the base (5); a tipping bucket assembly (7) is installed at the top of the balancing platform (6), and the tipping bucket assembly (7) comprises a tipping bucket member (74); water collecting cylinders (8) are installed on both sides of the top of the base (5), and the top of the water collecting cylinder (8) is inclined downward on the side close to the tipping bucket member (74).

2. A tipping bucket rain gauge according to claim 1, characterized in that: A positioning block (9) is fixedly connected to the top of the bottom plate (1) between each of the water channels (3); the water intake assembly (4) further comprises an outer cylinder (43); a clamping plate is fixedly connected to the inner portion of the outer cylinder (43) so as to fit the positioning block (9).

3. A tipping bucket rain gauge according to claim 1, characterized in that: The balancing platform (6) comprises at least three adjusting rods (61) fixedly connected to the base (5), a balancing board (62) is installed between each of the adjusting rods (61), a level (63) is installed on one side of the top end of the balancing board (62), and the adjusting rod (61) comprises an adjusting knob and a nut.

4. A tipping bucket rain gauge according to claim 3, characterized in that: The tipping bucket assembly (7) includes a reed switch (71) installed on both sides of the balance plate (62), the reed switch (71) is electrically connected to a recorder, a tipping bucket frame (72) is installed at the top of the balance plate (62) between the two reed switches (71), a connecting rod (73) is installed at the bottom of the tipping bucket frame (72), the tipping bucket member (74) is rotatably connected to the connecting rod (73), and a funnel (75) is installed at the top of the tipping bucket frame (72).

5. A tipping bucket rain gauge according to claim 4, characterized in that: The tipping bucket (74) comprises two symmetrically arranged triangular water collecting chambers, a baffle is arranged between the two water collecting chambers, counterweight blocks are fixedly connected to both sides of the top of the baffle, and the top is diamond-shaped, and water guide tips (76) are arranged at both ends of the tipping bucket (74).

6. A tipping bucket rain gauge according to claim 2, characterized in that: The water intake assembly (4) further comprises a water diversion funnel (44) fixedly connected to the interior of the outer cylinder (43); the water filter (42) is plugged into the bottom of the water diversion funnel (44); a plurality of secondary filter holes are evenly arranged on the surface of the water filter (42), and a vertical rod is fixedly connected in the middle; the water receiving sieve plate (41) is plugged into the top end of the outer cylinder (43); a plurality of main filter holes are evenly arranged at the bottom end of the water receiving sieve plate (41); and the diameter of the secondary filter holes is smaller than the diameter of the main filter holes.

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