A droplet generator and a rainfall measuring device

Abstract

The present invention discloses a droplet generator and a rainfall measuring device, and relates to the field of rainfall measurement. The droplet generator comprises a shell and a generator. The shell is used to receive liquid, and a liquid outlet is provided at the bottom of the shell. The generator is arranged in the shell, and is located above the liquid outlet, and a gap is provided between the bottom of the generator and the bottom of the shell, and the gap is connected with the liquid outlet to transport liquid to the liquid outlet, so that the liquid can form droplets after passing through the gap and the liquid outlet in sequence. The droplet generator is arranged through the gap between the generator and the bottom of the bottom shell, so that on the one hand, the incoming liquid can be effectively buffered, thereby controlling the liquid flow rate, and then controlling the liquid outlet speed, and on the other hand, the liquid that is buffered by the gap and transported to the liquid outlet can always drip out when its own gravity is greater than the adsorption force of the liquid during the liquid outlet process, thereby ensuring the uniformity of the generated droplets, and then facilitating the accurate measurement of the liquid volume according to the number of droplets.

Description

Technical Field

[0001] The invention relates to the field of rainfall measurement, in particular to a droplet generator and a rainfall measurement device. Background Art

[0002] Rainfall measurement is to collect rainwater from a certain area through a rainwater inlet, and then calculate the amount and level of rainfall through a measuring device. For the agricultural field, rainfall is a very critical factor for crops and often determines the yield of crops. In the future, rainfall measurement is very necessary for crop planting.

[0003] The existing traditional rain gauges mainly include siphon rain gauges, tipping bucket rain gauges, and pressure rain gauges. These rain gauges have technical problems such as inaccurate measurement results. Summary of the invention

[0004] The object of the present invention is to provide a droplet generator which can generate droplets of uniform volume, thereby facilitating accurate measurement of the liquid volume according to the number of droplets.

[0005] Another object of the present invention is to provide a rainfall measuring device, which utilizes the above-mentioned droplet generator to generate raindrops, so that the raindrops during rainfall measurement are all raindrops of uniform volume, thereby effectively ensuring the accuracy of the rainfall measurement results.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, an embodiment of the present invention provides a droplet generator, comprising:

[0008] The shell is used to receive the liquid, and a liquid outlet hole is provided at the bottom of the shell;

[0009] The generator is arranged in the shell and is located above the liquid outlet. There is a gap between the bottom of the generator and the bottom of the shell. The gap is connected to the liquid outlet to transport liquid to the liquid outlet, so that the liquid can form droplets after passing through the gap and the liquid outlet in sequence.

[0010] In an optional embodiment, the housing includes a mounting hole, the liquid outlet is connected to the mounting hole, and a mounting groove is formed on a side wall of the mounting hole;

[0011] The generator includes a generating part and a mounting part arranged on the generating part, the mounting part cooperates with the mounting groove, and when the mounting part is plugged into the mounting groove, a gap is formed between the bottom of the generating part and the bottom of the mounting hole.

[0012] In an optional embodiment, the generating portion includes a main body portion and a connecting portion, and the mounting portion is connected to the main body portion via the connecting portion;

[0013] The gap includes a first gap and a second gap that are interconnected. When the mounting portion is inserted into the mounting groove, the first gap is formed between the side wall of the main body and the side wall and bottom wall of the mounting hole, and the second gap is formed between the bottom wall of the main body and the bottom wall of the mounting hole, and the width of the second gap is greater than the inner diameter of the liquid outlet.

[0014] In an optional embodiment, the mounting hole is a stepped hole, and the stepped hole has a first side wall, a first bottom wall, a second side wall and a second bottom wall which are bent and connected in sequence;

[0015] The mounting groove is opened on the first side wall. When the mounting part is inserted into the mounting groove, the bottom of the mounting part abuts against the first bottom wall, and a first gap is formed between the side wall, the second side wall and the second bottom wall of the main body, and a second gap is formed between the bottom wall of the main body and the second bottom wall.

[0016] In an optional embodiment, the height of the first gap is greater than the height of the second gap.

[0017] In an optional embodiment, the height of the first gap is 0.8-1.0 mm, and the height of the second gap is 0.1-0.5 mm.

[0018] In an optional embodiment, the main body is cylindrical; or, in a direction close to the liquid outlet, the generating portion includes a first generating member in a conical shape and a second generating member in a cylindrical shape which are sequentially arranged;

[0019] The connecting portion and the mounting portion are both in the shape of flat plates.

[0020] In an optional embodiment, the generator includes at least two mounting parts, each mounting part is correspondingly provided with a connecting part, at least two mounting parts are arranged on the surface of the main body through the connecting parts corresponding to them one by one, and the mounting hole is provided with at least two mounting grooves corresponding to the mounting parts one by one.

[0021] In an optional embodiment, the shell is provided with a guiding slope at the outlet of the liquid outlet, and the guiding slope is used to guide the liquid droplets to drip downwards.

[0022] In an optional embodiment, the inclination angle of the guiding slope is an acute angle.

[0023] In an optional embodiment, the inclination angle of the guiding slope is 30° or 50°.

[0024] In an optional embodiment, the shell further includes a liquid storage tank, which is located above the mounting hole and communicated with the mounting hole.

[0025] In an optional embodiment, the liquid storage tank has an arc-shaped portion, and the mounting hole is arranged at the bottom of the arc-shaped portion.

[0026] In an optional embodiment, the liquid storage tank further has a step portion, which is located at an end of the arc-shaped portion away from the mounting hole, and the inner side wall of the step portion includes a vertical surface and a horizontal surface that are connected to each other, and the horizontal surface is connected to the arc-shaped portion.

[0027] In an optional embodiment, the outer side wall of the step portion has an inclined surface, and an angle of the inclined surface relative to the vertical direction is less than 90°.

[0028] In a second aspect, an embodiment of the present invention provides a rainfall measuring device, comprising:

[0029] The droplet generator of any of the preceding embodiments;

[0030] The droplet detection device is arranged below the liquid outlet of the droplet generator and is used to measure the liquid volume of the droplet.

[0031] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0032] An embodiment of the present invention provides a droplet generator, which includes a shell and a generator. The shell is used to receive liquid, and a liquid outlet is provided at the bottom of the shell. The generator is arranged in the shell and is located above the liquid outlet, and there is a gap between the bottom of the generator and the bottom of the shell, and the gap is connected to the liquid outlet to transport liquid to the liquid outlet, so that the liquid can form droplets after passing through the gap and the liquid outlet in sequence. The droplet generator is arranged through the gap between the generator and the bottom of the bottom shell. On the one hand, the incoming liquid can be effectively buffered, thereby controlling the liquid flow rate and then controlling the liquid outlet speed. On the other hand, the liquid that is buffered by the gap and transported to the liquid outlet can always drip out when its own gravity is greater than the adsorption force of the liquid during the liquid outlet process, thereby ensuring the uniformity of the generated droplets, and then facilitating the accurate measurement of the liquid volume according to the number of droplets.

[0033] The embodiment of the present invention further provides a rainfall measuring device, which comprises the above-mentioned droplet generator. Therefore, the measurement result of the rainfall measuring device is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 A schematic diagram of the structure of a rainfall measurement system provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the exploded structure of a rainfall measuring device provided by an embodiment of the present invention;

[0037] Figure 3 A schematic cross-sectional view of a rainfall measuring device provided by an embodiment of the present invention;

[0038] Figure 4 for Figure 3 A partial enlarged schematic diagram of

[0039] Figure 5 A schematic diagram of the structure of a generator provided by an embodiment of the present invention;

[0040] Figure 6 A schematic diagram of a partial exploded structure of a rainfall measuring device provided by an embodiment of the present invention;

[0041] Figure 7 A schematic diagram of the partial structure of a rainfall measuring device provided in an embodiment of the present invention.

[0042] Icons: 100-rainfall measuring system; 101-rainfall measuring device; 103-solar cell; 105-mounting rod; 106-filter; 107-dust cover; 109-filter screen; 111-dust cover bracket; 113-stainless steel net; 115-droplet generator; 117-generator; 119-liquid outlet; 121-first gap; 123-second gap; 125-mounting hole; 127-mounting groove; 129-first side wall; 131-first bottom wall; 133-second side wall; 135-second bottom wall; 137-main body; 13 9-connecting part; 140-installing part; 141-first generating part; 143-second generating part; 145-guiding slope; 147-liquid storage tank; 149-step part; 151-vertical surface; 153-horizontal surface; 155-inclined surface; 157-measuring device; 159-probe assembly; 161-hardware circuit; 163-positive electrode probe; 164-negative electrode probe; 165-insulating shell; 167-water collecting bucket; 169-liquid outlet; 171-light sensor; 173-main body; 175-shell; 177-raindrop; 179-metal head. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0048] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0049] Figure 1 This is a schematic diagram of the structure of the rainfall measurement system 100 provided in this embodiment. Figure 1 This embodiment provides a rainfall measurement system 100, which can be applied to the field of agricultural technology to measure the rainfall in a crop planting environment. Of course, in other embodiments of the present invention, it can also be used in other technical fields, such as rainfall measurement in arid areas, etc., and the embodiments of the present invention are not limited thereto.

[0050] For details, please refer again Figure 1 In this embodiment, the rainfall measuring system 100 includes a rainfall measuring device 101, a mounting pole 105, and a solar cell 103. The rainfall measuring device 101 and the solar cell 103 can be movably arranged on the mounting pole 105, the rainfall measuring device 101 is used to measure rainfall, and the solar cell 103 is electrically connected to the rainfall measuring device 101 to provide sufficient power for the rainfall measuring device 101 to assist the rainfall measuring device 101 in accurately measuring rainfall.

[0051] Figure 2 A schematic diagram of the exploded structure of the rainfall measuring device 101 provided in this embodiment; Figure 3This is a schematic diagram of the cross-sectional structure of the rainfall measuring device 101 provided in this embodiment. Figures 1 to 3 The rainfall measuring device 101 includes a body 173 and a filter 106, a droplet generator 115 and a meter 157 which are sequentially arranged in the body 173. The filter 106 is used to filter rainwater, the droplet generator 115 is used to generate uniform raindrops 177, and the meter 157 is used to measure rainfall. Of course, in other embodiments of the present invention, components such as a light sensor 171 can be arranged on the housing 175. The light sensor 171 can perform light sensing and sense light intensity to assist the rainfall measuring device 101 in measuring rainwater, which will not be described in detail in this embodiment.

[0052] For details, please refer again Figure 2 and Figure 3 In this embodiment, the filter 106 is used to effectively filter the input rainwater. By setting the filter 106, the influence of wind, sand and fallen leaves on the measured rainfall can be effectively reduced, and the water inlet can be prevented from being blocked.

[0053] Specifically, the filter 106 includes a dust cover 107, a filter screen 109, a dust cover bracket 111 and a stainless steel mesh 113 which are arranged in sequence from the outside to the inside. Among them, the outermost dust cover 107 can provide effective insect prevention, sand prevention, and leaf prevention, and block most impurities outside. The dust cover bracket 111 on the inner side of the dust cover 107 plays the role of fixing the filter screen 109 to ensure the stability of the entire filter 106. The filter screen 109 arranged between the dust cover 107 and the dust cover bracket 111 can provide effective dust prevention, thereby ensuring that the rainfall measuring device 101 is not blocked by sand and dust during long-term outdoor use. The stainless steel mesh 113 aims to provide secondary filtration so that the collected filtered rainwater can be transported to the droplet generator 115 to complete the introduction of rainwater.

[0054] Figure 4 for Figure 3 See Figures 1 to 4 In this embodiment, the droplet generator 115 is used to receive rainwater output after filtering by the filter 106, and generate raindrops 177 from the rainwater so that the measuring device 157 can perform accurate measurement.

[0055] Specifically, the droplet generator 115 includes a shell 175 and a generator 117. The shell 175 is disposed above the body 173, and the generator 117 and the shell 175 together form the droplet generator 115. That is, the shell 175 is used to receive rainwater, and the generator 117 is used to cooperate with the shell 175 to form raindrops 177. The bottom of the shell 175 is provided with a liquid outlet 119, and the generator 117 is disposed above the liquid outlet 119, and is used to cooperate with the liquid outlet 119 to form raindrops 177.

[0056] There is a gap between the bottom of the generator 117 and the bottom of the shell 175, and the gap is connected to the liquid outlet 119 to transport liquid to the liquid outlet 119, so that the liquid can form droplets after passing through the gap and the liquid outlet 119 in sequence. The droplet generator 115 is arranged through the gap between the generator 117 and the bottom of the bottom shell, on the one hand, the incoming liquid can be effectively buffered, thereby controlling the liquid flow rate and then controlling the liquid outlet speed, and on the other hand, the liquid that is buffered by the gap and transported to the liquid outlet 119 can always drip out when its own gravity is greater than the adsorption force of the liquid during the liquid outlet process, thereby ensuring the uniformity of the generated droplets, and then facilitating the accurate measurement of the liquid volume according to the number of droplets.

[0057] Please refer again Figures 2 to 4 In this embodiment, the shell 175 includes a mounting hole 125 and a liquid storage tank 147. The mounting hole 125 is used to install the generator 117, and the liquid storage tank 147 is used to hold rainwater to facilitate filtering by the filter 106. At the same time, the filtered rainwater can be transported to the mounting hole 125 to facilitate the droplet generator 115 to generate raindrops 177.

[0058] In detail, the liquid storage tank 147 is located at one end of the mounting hole 125 away from the liquid outlet 119. The shape of the liquid storage tank 147 is roughly arc-shaped. The arc-shaped design can buffer the received rainwater, so that the downstream speed of the rainwater can be controlled, thereby facilitating the accuracy of the later raindrop 177 measurement results. The mounting hole 125 is located at the bottom of the arc of the liquid storage tank 147, so as to buffer the input rainwater and transport it to the generator 117 for generating raindrops 177. Of course, in other embodiments of the present invention, the shape of the liquid storage tank 147 can also be improved according to needs, for example, it can be set to a curved shape with multiple bends, etc., and the embodiments of the present invention are not limited thereto.

[0059] Specifically, the liquid tank 147 has a first end close to the mounting hole 125 and a second end away from the mounting hole 125. The entire filter 106 is arranged in the liquid tank 147 and is located above the mounting hole 125 arranged at the first end, so as to effectively filter the rainwater. The second end of the liquid tank 147 is provided with a step portion 149, and the inner side wall of the step portion 149 includes a vertical surface 151 and a horizontal surface 153 connected and arranged, and the horizontal surface 153 is connected to the arc portion. The design purpose of the vertical surface 151 and the horizontal surface 153 is to prevent rainwater from bouncing out of the liquid tank 147, thereby ensuring the stability of rainwater collection, and then ensuring the accuracy of the final rainfall measurement result. The outer side wall of the step portion 149 has an inclined surface 155, and the angle of the inclined surface 155 relative to the vertical direction is less than 90°. The purpose of the inclined surface 155 is to collect rainwater of a certain area and limit the relative area, so as to facilitate the final calculation of the rainfall size within the relative area, and then further obtain a more accurate rainfall value.

[0060] Figure 5 This is a schematic diagram of the structure of the generator 117 provided in this embodiment. Figures 2 to 5 In this embodiment, the generator 117 includes a generating portion and a mounting portion 140 disposed on the generating portion. The mounting portion 140 is mainly used to mount the entire generator 117 to ensure the stability of the generator 117 in the mounting hole 125, thereby ensuring the accuracy of the raindrop 177 generation operation.

[0061] Specifically, a mounting groove 127 is opened on the inner wall of the mounting hole 125, and the mounting part 140 can be plugged into the mounting groove 127. When the mounting part 140 is plugged into the mounting groove 127, a gap is formed between the bottom of the generating part and the bottom of the mounting hole 125, thereby buffering the input rainwater and outputting the buffered rainwater from the gap, so that the rainwater can fall in the form of drops when the gravity is greater than the adsorption force, thereby facilitating the measuring device 157 to measure the rainfall.

[0062] Further, please refer again to Figures 3 to 5In this embodiment, the generating part includes a main body 137 and two connecting parts 139, and the number of corresponding mounting parts 140 is also designed to be two. The two connecting parts 139 are symmetrically arranged on both sides of the main body 137, and each connecting part 139 is correspondingly provided with a mounting part 140, and the mounting part 140 is connected to the main body 137 through the connecting parts 139 at the corresponding positions. Correspondingly, the number of mounting grooves 127 is also set to two, and they correspond to the positions of the mounting parts 140 one by one, so that the mounting parts 140 can stabilize the entire droplet generator 115 after cooperating with the mounting grooves 127, and can also facilitate positioning, so that rainwater can form drop-shaped raindrops 177 after passing through the droplet generator 115, thereby further ensuring the accuracy of the measurement results of the measuring device 157. Of course, in other embodiments of the present invention, the number of mounting grooves 127, mounting portions 140 and connecting portions 139 can be selected to be multiple and not limited to two. For example, multiple mounting portions 140 can be selected and arranged in a circular array on the outside of the main body 137 through the connecting portions 139, etc. The embodiments of the present invention are not limited thereto.

[0063] It should be noted that in this embodiment, the shape of the main body 137 can be set to a cylindrical shape, or it can be set to other shapes. For example, in the direction close to the liquid outlet 119, the generating part can be designed to be a first generating part 141 with a conical shape and a second generating part 143 with a cylindrical shape, which are sequentially arranged. The rainwater is guided by the first generating part 141 with a conical shape, and the rainwater is buffered by the second generating part 143 with a cylindrical shape. The embodiment of the present invention does not make specific restrictions. The shape of the connecting part 139 and the mounting part 140 can be set to a flat plate structure. For example, the connecting part 139 can be set to a rectangular plate structure, and the mounting part 140 can be set to a trapezoidal plate structure, etc. This practical embodiment does not make any restrictions.

[0064] Please refer again Figure 3 and Figure 4 In this embodiment, the gap includes a first gap 121 and a second gap 123 that are interconnected. The second gap 123 is located below the main body 137, and the first gap 121 is located on the side of the main body 137. Specifically, when the mounting portion 140 is inserted into the mounting groove 127, the first gap 121 is formed between the side wall of the main body 137 and the side wall and bottom wall of the mounting hole 125. By setting the first gap 121, the rainwater input from the liquid storage tank 147 is effectively buffered. At the same time, the second gap 123 is formed between the bottom wall of the main body 137 and the bottom wall of the mounting hole 125. By setting the second gap 123, the buffered rainwater can pass through the generator 117 and form raindrops 177 when the gravity effect is greater than the adsorption effect and is output, thereby facilitating the measurement of the measuring device 157 and ensuring the measurement accuracy.

[0065] It should be noted that, in this embodiment, the width of the second gap 123 is greater than the inner diameter of the liquid outlet 119, that is, the second gap 123 is completely covered by the main body 137 above the liquid outlet 119 in the vertical direction. This arrangement makes it difficult for the input rainwater to be directly output through the liquid outlet 119 after being filtered, that is, it is ensured that the input rainwater must be generated into drop-shaped raindrops 177 after being acted on by the generator 117 and then output, thereby facilitating the accuracy of rainfall measurement.

[0066] In detail, in this embodiment, the mounting hole 125 can be selected as a stepped hole so that after the mounting portion 140 is set in the mounting groove 127, the entire generator 117 can be lifted up, thereby forming a second gap 123 between the bottom wall of the mounting hole 125, thereby ensuring the uniformity of the generation of raindrops 177, and then ensuring the accuracy of the rainfall measurement results.

[0067] Specifically, the step hole has a first side wall 129, a first bottom wall 131, a second side wall 133, and a second bottom wall 135 that are bent and connected in sequence. In this embodiment, the first side wall 129, the first bottom wall 131, the second side wall 133, and the second bottom wall 135 are vertically connected in sequence to ensure that the input rainwater has a sufficient buffering effect. Of course, in other embodiments of the present invention, the first side wall 129, the first bottom wall 131, the second side wall 133, and the second bottom wall 135 can also be connected at an angle, which is not limited by the embodiments of the present invention.

[0068] The mounting groove 127 is provided on the first side wall 129. When the mounting portion 140 is inserted into the mounting groove 127, the bottom of the mounting portion 140 abuts against the first bottom wall 131 to lift the entire generator 117. The side wall of the main body 137, the second side wall 133 and the second bottom wall 135 together form a first gap 121 to buffer rainwater. The bottom wall of the main body 137 and the second bottom wall 135 together form a second gap 123 to allow rainwater to form drop-shaped raindrops 177 after passing through the second gap 123 under the premise that its own gravity is greater than the adsorption force, thereby facilitating measurement by the measuring device 157.

[0069] It should be noted that in order to ensure the existence of the second gap 123, the height of the first gap 121 is greater than the height of the second gap 123. And preferably, the size of the first gap 121 can be selected as 0.8-1.0 mm, and the height of the second gap 123 can be selected as 0.1-0.5 mm. By strictly controlling the size and coordinating the size of the liquid outlet 119, the weight of the final output droplet is controlled at about 1 / 20g, so that the total rainfall can be calculated by listening to the number of times the raindrops 177 drip. Of course, in other embodiments of the present invention, the size of the liquid outlet 119 can also be adjusted according to demand. When a lighter weight or smaller volume of raindrops 177 is required, the diameter of the liquid outlet 119 can be reduced. The embodiments of the present invention will not be repeated.

[0070] Please refer again Figures 1 to 5 In this embodiment, the shell 175 is provided with a guide slope 145 at the outlet of the liquid outlet 119, and the guide slope 145 is used to guide the liquid droplets to drip downward. Through the setting of the guide slope 145, after passing through the raindrop 177 generator 117, the rainwater can generate uniform water droplets according to its own gravity and the adsorption of water, and then as the water droplets drip along the edge of the liquid outlet 119, the guide slope 145 on the circumferential edge of the liquid outlet 119 can prevent the water droplets from flowing horizontally due to their own adsorption, thereby ensuring that all the generated water droplets will fall freely, forming a uniform volume water drop diagram of free-falling drops, and further ensuring the accuracy of the final measurement result of the measuring device 157.

[0071] It should be noted that, in the present embodiment, the inclination angle of the guiding slope 145 is an acute angle, and preferably, the inclination angle of the guiding slope 145 is 30° or 50°. When the inclination angle of the guiding slope 145 is controlled within this range, the raindrops 177 can be effectively guided to drip downwards and avoid flowing in the horizontal direction. Of course, in other embodiments of the present invention, the specific value of the inclination angle of the guiding slope 145 can also be designed and improved according to the type of liquid and the required size and weight of the liquid, and the embodiments of the present invention will not be repeated.

[0072] Figure 6 A schematic diagram of a partial exploded structure of a rainfall measuring device 101 provided in this embodiment; Figure 7 This is a partial structural diagram of the rainfall measuring device 101 provided in this embodiment. Figures 1 to 7 In this embodiment, the measuring device 157 is located directly below the droplet generator 115, and the measuring device 157 includes a probe assembly 159 and a hardware circuit 161. The probe assembly 159 is electrically connected to the hardware circuit 161, and the hardware circuit 161 is electrically connected to the solar cell 103. The probe assembly 159 is used to measure the number of raindrops 177, so as to calculate the amount of rainfall.

[0073] For details, see Figure 6 to Figure 7 In this embodiment, the probe assembly 159 includes a plurality of probes arranged in an array, and the probes are divided into a negative electrode probe 164 and a positive electrode probe 163. The negative electrode probe 164 and the positive electrode probe 163 are arranged at intervals to form an array-arranged probe assembly 159, for example, a horizontal mesh surface arranged in a square, circular, or rectangular array can be formed to ensure that all raindrops 177 can fall on this horizontal mesh surface.

[0074] Specifically, after the raindrop 177 generated by the droplet generator 115 drips onto the probe and connects to the positive electrode probe 163 and the negative electrode probe 164, the pulse signal of the hardware circuit 161 changes, and is recorded as a raindrop 177. After all the rainwater received by the entire liquid tank 147 has dripped, the rainfall in the relative area can be calculated by the number of raindrops 177 and the weight and volume of a single raindrop 177, thereby completing the accurate measurement of rainfall.

[0075] It should be noted that, in the present embodiment, the probe assembly 159 includes eight positive electrode probes 163 and eight negative electrode probes 164, which are arranged at intervals to form a probe assembly 159 arranged in a square array to effectively measure the raindrops 177. Of course, in other embodiments of the present invention, the number of positive electrode probes 163 and negative electrode probes 164 can also be selected according to demand, and the embodiments of the present invention are not limited thereto.

[0076] As a preferred solution, in this embodiment, the middle and lower surfaces of each positive electrode probe 163 and negative electrode probe 164 are wrapped with an insulating shell 165, and only a small part of the conductive metal head 179 is exposed. Through the setting of the insulating shell 165, on the one hand, the safety of the probe can be protected, the stability of the probe can be improved, and the probe can be prevented from being damaged. On the other hand, through the setting of the insulating shell 165, when water droplets fall, the metal heads 179 leaking out of the negative electrode probe 164 and the positive electrode probe 163 can instantly contact and conduct, and count after conduction. After the counting is completed, it can quickly leave along the insulating shell 165 to ensure that raindrops 177 will not accumulate on the probe, thereby achieving the instantaneous conduction and counting of the probes. That is, through such a design, when the water drop pattern generated by the raindrop 177 generator freely falls to the probe mesh surface, the raindrop 177 will fall on the probe mesh surface and can be recorded instantly regardless of whether it is perpendicular to the probe mesh surface, thereby ensuring that the water droplets can be detected whether the equipment is in a horizontal state, thereby reducing the complexity of equipment installation and improving the accuracy of rainfall measurement.

[0077] It should be noted that, in this embodiment, the insulating shell 165 can be selected as a plastic shell, or a shell made of other insulating materials, and the embodiment of the present invention is not limited thereto.

[0078] Please refer again Figures 1 to 7 In this embodiment, the rainfall measuring device 101 further includes a water collecting bucket 167 disposed in the body 173. The water collecting bucket 167 is used to collect the measured rainwater.

[0079] In detail, the water collecting bucket 167 is arranged below the measuring device 157, and can collect rainwater measured by the measuring device 157, so as to prevent rainwater from accumulating near the measuring device 157 and affecting the measurement result, and at the same time, it can also save water resources and avoid waste.

[0080] Specifically, a liquid outlet 169 is provided below the water collection barrel 167, and the liquid outlet 169 can be optionally connected to the outside. When the liquid outlet 169 is connected to the outside, the liquid outlet 169 can discharge the rainwater collected by the entire water collection barrel 167 to irrigate crops, thereby improving the utilization efficiency of water resources. During the rainfall measurement process, it can be selected whether to close the liquid outlet 169 according to needs, and the embodiments of the present invention are not limited thereto.

[0081] The installation and working principle of the rainfall measuring device 101 provided by the embodiment of the present invention are described in detail below:

[0082] When the rain gauge measuring device 101 is installed, the measuring device 157 is firstly arranged in the housing 175, and the hardware circuit 161 is connected to the solar cell 103, and the probe assembly 159 is located directly below the liquid outlet 119. After the measuring device 157 is installed, the generator 117 is arranged in the mounting hole 125, so that the mounting portion 140 of the generator 117 is plugged into the mounting groove 127 of the mounting hole 125, so that a droplet generator 115 is formed between the generator 117 and the mounting hole 125 of the housing 175. After the installation of the generator 117 is completed, the stainless steel mesh 113, the dust cover bracket 111, the filter mesh 109 and the dust cover 107 are sequentially arranged above the mounting hole 125 to form a filter 106.

[0083] After the installation of the rainfall measuring device 101 is completed, rainwater is collected within a relative area and placed at a collection position so that the rainwater is collected through the liquid storage tank 147. The collected rainwater passes through the filter mesh 109 of the filter 106 and the stainless steel mesh 113, and then passes through the first gap and the second gap in turn, and then passes through the liquid outlet 119 to form raindrops 177. After the raindrops 177 fall on the probe assembly 159, the first counting begins. Finally, the accurate rainfall value can be calculated based on the weight of a raindrop 177 and the total number of times the raindrops 177 fall.

[0084] In the above process, due to the gap setting between the generator 117 of the droplet generator 115 and the bottom of the bottom shell, on the one hand, the incoming liquid can be effectively buffered, thereby controlling the liquid flow rate and then the liquid discharge speed; on the other hand, the liquid output to the liquid outlet 119 after gap buffering can always drip out when its own gravity is greater than the adsorption force of the liquid during the liquid discharge process, thereby ensuring the uniformity of the generated droplets, and then facilitating the accurate measurement of the liquid volume according to the number of droplets.

[0085] In summary, the droplet generator 115 provided in the embodiment of the present invention can generate droplets of uniform volume, so as to facilitate accurate measurement of the liquid volume according to the number of droplets. The provided rainfall measurement device 101 uses the above-mentioned droplet generator 115 to generate raindrops 177, so that the raindrops 177 during rainfall measurement are all raindrops 177 of uniform volume, so that the accuracy of the rainfall measurement result is effectively guaranteed.

[0086] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A droplet generator, It is characterized in that include: A shell body is used to receive liquid, and a liquid outlet hole is provided at the bottom of the shell body; A generator is disposed on the shell and is located above the liquid outlet, and a gap is provided between the bottom of the generator and the bottom of the shell, and the gap is communicated with the liquid outlet to transport liquid to the liquid outlet, so that the liquid can form droplets after passing through the gap and the liquid outlet in sequence; The housing comprises a mounting hole, the liquid outlet is communicated with the mounting hole, and a mounting groove is formed on a side wall of the mounting hole; The generator comprises a generating part and a mounting part arranged on the generating part, the mounting part cooperates with the mounting slot, and when the mounting part is inserted into the mounting slot, the gap is formed between the bottom of the generating part and the bottom of the mounting hole; The generating part comprises a main body part and a connecting part, and the mounting part is connected to the main body part through the connecting part; The gap includes a first gap and a second gap that are interconnected. When the mounting portion is inserted into the mounting groove, the first gap is formed between the side wall of the main body and the side wall and bottom wall of the mounting hole, and the second gap is formed between the bottom wall of the main body and the bottom wall of the mounting hole.

2. The droplet generator according to claim 1, Features: The width of the second gap is greater than the inner diameter of the liquid outlet hole; the shell also includes a liquid storage tank, which is used to hold rainwater and can transport rainwater to the location of the installation hole.

3. The droplet generator according to claim 2, Features: The mounting hole is a stepped hole, and the stepped hole has a first side wall, a first bottom wall, a second side wall and a second bottom wall which are bent and connected in sequence; The mounting groove is opened on the first side wall. When the mounting part is inserted into the mounting groove, the bottom of the mounting part abuts against the first bottom wall. The first gap is formed between the side wall of the main body, the second side wall and the second bottom wall. The second gap is formed between the bottom wall of the main body and the second bottom wall.

4. The droplet generator according to claim 3, Features: The height of the first gap is greater than the height of the second gap.

5. The droplet generator according to claim 4, Features: The height of the first gap is 0.8-1.0 mm, and the height of the second gap is 0.1-0.5 mm.

6. The droplet generator according to claim 2, Features: The main body is cylindrical; or, in a direction close to the liquid outlet, the generating part includes a first generating member in a conical shape and a second generating member in a cylindrical shape which are sequentially arranged; The connecting portion and the mounting portion are both in the shape of a flat plate.

7. The droplet generator according to claim 2, Features: The generator comprises at least two mounting parts, each of which is provided with a corresponding connecting part, at least two mounting parts are arranged on the surface of the main body part at intervals through the connecting parts which are provided one-to-one with them, and the mounting hole is provided with at least two mounting grooves which are corresponding one-to-one with the mounting parts.

8. The droplet generator according to any one of claims 1 to 7, Features: The shell is provided with a guiding slope at the outlet of the liquid outlet, and the guiding slope is used to guide the liquid droplets to drip downwards.

9. The droplet generator according to claim 8, Features: The inclination angle of the guiding slope is an acute angle.

10. The droplet generator according to claim 9, Features: The inclination angle of the guiding slope is 30° or 50°.

11. The droplet generator according to any one of claims 1 to 7, Features: The shell also includes a liquid storage tank, which is located above the mounting hole and communicated with the mounting hole.

12. The droplet generator according to claim 11, Features: The liquid storage tank has an arc-shaped portion, and the mounting hole is arranged at the arc bottom of the arc-shaped portion.

13. The droplet generator according to claim 12, Features: The liquid storage tank also has a step portion, which is located at one end of the arc-shaped portion away from the mounting hole, and the inner side wall of the step portion includes a vertical surface and a horizontal surface that are connected to each other, and the horizontal surface is connected to the arc-shaped portion.

14. The droplet generator according to claim 13, Features: The outer side wall of the step portion has an inclined surface, and an angle of the inclined surface relative to the vertical direction is less than 90°.

15. A rainfall measuring device, It is characterized in that include: The droplet generator according to any one of claims 1 to 14; The liquid droplet detection device is arranged below the liquid outlet of the liquid droplet generator and is used to measure the liquid volume of the liquid droplet.

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