CN110632683A

CN110632683A - Droplet detection mechanism and rainfall measurement device

Info

Publication number: CN110632683A
Application number: CN201911033981.9A
Authority: CN
Inventors: 曹明
Original assignee: Guangzhou Xaircraft Technology Co Ltd
Current assignee: Guangzhou Xaircraft Technology Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2019-12-31

Abstract

The invention relates to the field of meteorological monitoring, in particular to a liquid drop detection mechanism and a rainfall measurement device. The liquid drop detection mechanism comprises an installation component, at least one anode probe and at least one cathode probe, wherein the anode probe and the cathode probe are both vertically arranged on the installation component, and the detection ends of the anode probe and the cathode probe jointly form a detection surface. The liquid drop detection mechanism and the rainfall measurement device have high measurement precision and are not harsh in installation conditions.

Description

Droplet detection mechanism and rainfall measurement device

Technical Field

The invention relates to the field of meteorological monitoring, in particular to a liquid drop detection mechanism and a rainfall measurement device.

Background

The rainfall measurement is to collect rainwater in a certain area through a rainwater receiving port, and then calculate the magnitude and the grade of the rainfall through a measuring device, so that the rainfall is a very critical factor for crops and can often determine the harvest of the crops for the agricultural field; later, for crop planting, rainfall measurements are very important.

The rainfall measurement method in the related art has harsh installation conditions and measurement precision defects, such as: the equipment must always be kept horizontal, and if the equipment is slightly inclined, the measurement data is seriously inaccurate or cannot be measured.

Disclosure of Invention

The invention aims to provide a liquid drop detection mechanism and a rainfall measurement device, which have high measurement precision and are not harsh in installation conditions.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment provides a droplet detection mechanism, including: the device comprises an installation component, at least one anode probe and at least one cathode probe, wherein the anode probe and the cathode probe are both vertically arranged on the installation component, and the detection ends of the anode probe and the cathode probe jointly form a detection surface.

In an alternative embodiment, at least two negative probes are arranged around each positive probe; alternatively, the first and second electrodes may be,

at least two positive probes are arranged around each negative probe.

In an alternative embodiment, at least four negative probes are arranged around each positive probe; alternatively, the first and second electrodes may be,

at least four positive probes are arranged around each negative probe.

In an alternative embodiment, the droplet detection mechanism comprises at least two positive probes and at least two negative probes, the positive probes and the negative probes being alternately distributed in sequence.

In an alternative embodiment, the droplet detection mechanism includes at least two positive probes and at least two negative probes, and the at least two positive probes and the at least two negative probes are distributed in an array.

In an alternative embodiment, the mounting assembly includes a circuit board, the positive electrode probe includes an electrode and an insulating housing sleeved on the electrode, one end of the electrode is electrically connected with the circuit board, and the other end of the electrode protrudes out of the insulating housing to form a detection end.

In an alternative embodiment, both the positive and negative probes are disposed perpendicularly to the mounting assembly.

In an optional embodiment, the mounting assembly further comprises a mounting seat and a circuit board, the positive probe and the negative probe are in plugging fit with the mounting seat, and the positive probe and the negative probe penetrate through the mounting seat and are electrically connected with the circuit board.

In an alternative embodiment, the detection surface is parallel to the circuit board.

In a second aspect, an embodiment provides a rainfall measurement device, which includes a rainwater collection assembly and the above-mentioned droplet detection mechanism; the rainwater collection assembly is provided with a rainwater outlet, and the rainwater outlet and the detection surface are distributed oppositely.

In an optional embodiment, the detection device further comprises a bottom shell and a detection assembly arranged in the bottom shell, wherein the mounting assembly is arranged on the bottom shell and comprises a circuit board, and the circuit board is electrically connected with the detection assembly.

In an alternative embodiment, the mounting assembly further comprises a mounting base detachably connected with the bottom shell; the positive probe and the negative probe are in splicing fit with the mounting seat.

In an alternative embodiment, the mounting seat comprises a body part and two connecting parts, the two connecting parts are respectively connected to two sides of the body part, and the positive probe and the negative probe are in inserted fit with the body part; and each connecting part is detachably connected with the bottom shell through a fastener, and the circuit board is clamped between the mounting seat and the bottom shell.

In an optional implementation mode, the circuit board is provided with two avoiding ports, the two avoiding ports correspond to the two connecting portions one by one, and the fastening piece correspondingly arranged on each connecting portion can penetrate through the avoiding ports to be connected with the bottom shell.

The liquid drop detection mechanism of the embodiment of the invention has the beneficial effects that: the liquid drop detection mechanism provided by the embodiment of the invention can be used for detecting the rainfall or the dropping amount of other liquids, the liquid drop detection mechanism comprises a mounting assembly, at least one positive probe and at least one negative probe which are vertically arranged on the mounting assembly, the detection ends of the positive probe and the negative probe form a detection surface together, and liquid drops to be detected (such as raindrops) can be dropped on the detection surface to be contacted with the detection end of the positive probe and the detection end of the negative probe for detection; because the detection ends of the anode probe and the cathode probe which are vertically arranged on the mounting assembly form a detection surface, when the liquid drop detection mechanism is used, even if the detection surface is not horizontally arranged, liquid drops to be detected can also accurately drop on the detection end of the probe forming the detection surface, so that the detection precision is improved, and harsh mounting conditions are not required.

The rainfall measurement device of the embodiment of the invention has the beneficial effects that: the rainfall measurement device provided by the embodiment of the invention comprises the liquid drop detection mechanism, and the rainfall measurement mechanism has higher rainfall detection precision and further does not need harsh installation conditions.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is an exploded view of a droplet detection mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a droplet detection mechanism according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a rainfall measurement device in an embodiment of the invention;

fig. 4 is an enlarged view of the point iv in fig. 3.

Icon: 010-a droplet detection mechanism; 100-mounting the assembly; 110-a circuit board; 111-avoidance ports; 120-a probe; 120 a-positive electrode probe; 120 b-negative probe; 121-detection end; 122-an electrode; 123-an insulating housing; 130-a mount; 131-mounting holes; 132-a body portion; 133-a connecting portion; 020-rainfall measuring device; 200-a rainwater collection assembly; 201-rain outlet; 210-a bottom shell; 220-upper shell; 221-a raindrop generating member; 222-a collection chamber; 223-a mounting portion; 224-a receiving cavity; 225-gap; 230-a filter assembly; 231-filtering screen.

Detailed Description

In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides a droplet detecting mechanism 010, which includes a mounting assembly 100 and a plurality of probes 120, wherein the plurality of probes 120 includes at least one positive probe 120a and at least one negative probe 120b, that is, the droplet detecting mechanism 010 of the embodiment includes at least one positive probe 120a and at least one negative probe 120b, the positive probe 120a and the negative probe 120b are both vertically disposed on the mounting assembly 100, and a detecting end 121 of the positive probe 120a and a detecting end 121 of the negative probe 120b form a detecting surface together.

The droplet detecting mechanism 010 of the present embodiment may be used to detect the amount of rain or other liquid dropping, for example: the amount of liquid pesticide sprayed, etc.

Further, the mounting assembly 100 in this embodiment further includes a circuit board 110, and the plurality of probes 120 are electrically connected to the circuit board 110, that is, the positive probe 120a and the negative probe 120b are electrically connected to the circuit board 110.

When the droplet detecting mechanism 010 is in an initial state of use, since neither the detecting end 121 of the positive electrode probe 120a nor the detecting end 121 of the negative electrode probe 120b has droplets, that is, the detecting end 121 is dry, the circuit board 110 is an open circuit, and the resistance thereof is infinite, that is, the circuit board 110 does not output a detection signal; when the liquid drop lands on the detection surface, the detection end 121 of the positive electrode probe 120a and the detection end 121 of the negative electrode probe 120b both contact the liquid drop, the liquid drop connects the circuit, the circuit is changed from open circuit to short circuit, and the circuit board 110 has and can output a detection signal.

The detection surface of the droplet detection mechanism 010 of this embodiment is composed of the detection end 121 of at least one positive electrode probe 120a and the detection end 121 of at least one negative electrode probe 120b, and no matter whether this droplet detection mechanism 010 is set up, installed, the detection surface is horizontal setting, all can make the droplet to be detected can be accurate drop on the detection end 121 of detection surface, and then improved the precision of detection to do not need harsh installation condition.

In the present embodiment, one end of the probe 120 is electrically connected to the circuit board 110, and the end of the probe 120 away from the circuit board 110 is the detection end 121, so that when the droplet detection mechanism 010 is used, even if the detection surface formed by the detection ends 121 of the plurality of probes 120 is inclined, the droplet can be surely in contact with the detection end 121, and the droplet amount can be detected.

Referring to fig. 1, the probe 120 includes an electrode 122 and an insulating housing 123 covering the electrode 122, wherein one end of the electrode 122 is electrically connected to the circuit board 110, and the other end protrudes from the insulating housing 123 to form a detecting end 121; that is, the positive electrode probe 120a and the negative electrode probe 120b of the present embodiment each include an electrode 122 and an insulating housing 123 covering the electrode 122, one end of the electrode 122 is electrically connected to the circuit board 110, and the other end protrudes from the insulating housing 123 to form a detecting end 121.

So set up, when using this liquid droplet detection mechanism 010 to detect the liquid droplet volume, can be when the liquid droplet drips in detection end 121, the contact switch-on circuit in the twinkling of an eye carries out instantaneous record and liquid droplet volume calculation, then makes the liquid droplet flow down along insulating casing 123, and can not make the liquid droplet stay on detection end 121 to guarantee the instantaneity that detects, with the accuracy that improves detection liquid droplet volume of dripping, for example when detecting the rainfall with this liquid droplet detection mechanism 010, can more accurate detection rainfall.

Referring to fig. 1, the mounting assembly 100 of the present embodiment further includes a mounting base 130, the mounting base 130 is provided with a plurality of mounting holes 131, the plurality of probes 120 are in one-to-one correspondence with the plurality of mounting holes 131 and are in insertion fit with the plurality of mounting holes 131, that is, the positive probes 120a and the negative probes 120b of the present embodiment are both disposed on the mounting assembly 100 through the mounting holes 131 provided on the mounting base 130; the probe 120 plugged into the mounting base 130 is electrically connected to the circuit board 110, i.e. the positive probe 120a and the negative probe 120b are both electrically connected to the circuit board 110 through the mounting base 130. The plurality of mounting holes 131 formed in the mounting plate can stabilize the vertically-arranged probes 120, facilitate the mounting and dismounting of the probes 120, and further facilitate the maintenance of the droplet detection mechanism 010.

The mounting hole 131 formed in the mounting base 130 is a through hole, and the mounting base 130 is clamped between the circuit board 110 and the probe 120, that is, one end of the probe 120 away from the detection end 121 can penetrate through the mounting hole 131 to be electrically connected with the circuit board 110; thus, the droplet detecting mechanism 010 is compact in structure and is advantageous for miniaturization design.

It should be further noted that an end of the electrode 122 away from the detecting end 121 extends out of the insulating housing 123, and when the probe 120 is inserted into the mounting hole 131, an end of the electrode 122 away from the detecting end 121 protrudes out of the mounting seat 130, so that a portion of the electrode 122 protruding out of the mounting seat 130 can be electrically connected to the circuit board 110, that is, the mounting seat 130 is prevented from interfering with the electrical connection between the electrode 122 and the circuit board 110.

In the embodiment, the probe 120 and the mounting hole 131 are in interference fit, and the outer wall of the insulating housing 123 of the probe 120 abuts against the inner wall of the mounting hole 131; in other embodiments, the probe 120 may also be snap-fit or screw-fit with the mounting hole 131, and is not limited in this regard.

It should be noted that the mounting seat 130 is made of an insulating material, such as: plastic to avoid the mount 130 interfering with the test results.

Referring to fig. 1, the mounting base 130 of the present embodiment includes a main body 132 and two connecting portions 133, the two connecting portions 133 are respectively connected to two sides of the main body 132, and the mounting hole 131 is opened in the main body 132. The droplet detecting mechanism 010 of the present embodiment may be provided on the detecting device by the connecting portion 133 of each mounting seat 130, for example: a fastener is provided at the connecting portion 133 and connected to the detecting device with the fastener.

It should be noted that the attachment seat 130 is provided on the detection device via the connection portion 133, so that the fastener can be prevented from interfering with the operation of the probe 120 provided on the body portion 132.

Referring to fig. 1, the circuit board 110 is provided with two avoiding openings 111, and the two avoiding openings 111 correspond to the two connecting portions 133 one by one, so that the fastening member correspondingly arranged on each connecting portion 133 can pass through the avoiding opening 111 to be connected with the detecting device; thus, when the droplet detecting mechanism 010 is disposed on the detecting device through the mounting base 130, the fastening members disposed on the two connecting portions 133 can limit the circuit board 110, that is, the circuit board 110 interposed between the mounting base 130 and the detecting device is prevented from moving, and the circuit board 110 is prevented from interfering with the connection between the fastening members and the detecting device.

Each of the connecting portions 133 is provided with a connecting hole, and the fastening member can sequentially pass through the connecting hole of the mounting base 130 and the avoiding hole 111 of the circuit board 110 to be connected with the detecting device, so that the mounting base 130 is connected with the circuit board 110. The fasteners include screws, bolts, and the like.

The mounting hole 131 is opened in the main body 132, that is, the probe 120 is connected to the main body 132 of the mounting seat 130; namely, the positive electrode probe 120a and the negative electrode probe 120b are inserted into and matched with the body part 132; since the fastening member for connecting the mounting socket 130 and the circuit board 110 is disposed at the connection portion 133, the fastening member does not interfere with the connection of the probe 120 and the mounting socket 130.

The connection mode of the main body 132 and the connection portion 133 can be selected according to the requirement, and the main body 132 and the connection portion 133 of the present embodiment are integrally formed, that is, the mounting seat 130 is integrally formed; in other embodiments, the body portion 132 and the connecting portion 133 may be connected by bonding or snapping.

The plurality of probes 120 of the present embodiment are all vertically disposed on the mounting assembly 100, that is, the positive probe 120a and the negative probe 120b are both vertically disposed on the mounting base 130, that is, the positive probe 120a and the negative probe 120b are both vertically disposed on the circuit board 110; thus, when the droplet detection mechanism 010 is mounted, it is easier to set both the detection end 121 of the positive electrode probe 120a and the detection end 121 of the negative electrode probe 120b to the droplet that is being dropped, and the droplet to be detected can be more accurately dropped onto the detection end 121 of the positive electrode probe 120a and the detection end 121 of the negative electrode probe 120 b.

In other embodiments, the angle between the probe 120 and the circuit board 110 may also be 89 °, 88 °, 95 °, and the like, which is not limited herein.

In the present embodiment, the distances from the detecting ends 121 of the probes 120 to the circuit board 110 are the same, that is, the distances from the detecting ends 121 of the positive probes 120a and the detecting ends 121 of the negative probes 120b to the circuit board 110 are the same, that is, the detecting surface is parallel to the circuit board 110; this makes it easier to set the detection end 121 of the probe 120 to the droplet being dropped, and also makes it more useful to detect the droplet in a parallel state after the droplet detection mechanism 010 is mounted, thereby ensuring more accurate detection.

In other embodiments, the distances from the detecting ends 121 of the plurality of probes 120 to the circuit board 110 may be different, and the difference between the distances from the detecting ends 121 of the respective probes 120 to the circuit board 110 may be 0.5mm, 1mm, and the like, which is not particularly limited herein.

In other embodiments, the extension surface of the detection surface formed by the detection ends 121 of the plurality of probes 120 may also form an included angle with the circuit board 110; because the detection face comprises the detection end 121 of a plurality of probes 120 jointly, so the extension face of detection face and circuit board 110 are the contained angle setting, also can not reduce the liquid drop and the accuracy that detects the face contact, and then can not reduce the accuracy that detects.

At least two negative electrode probes 120b are disposed around each positive electrode probe 120a of the plurality of probes 120; alternatively, at least two positive electrode probes 120a are disposed around each negative electrode probe 120 b; thus, when the detection surface formed by the detection end 121 of the positive probe 120a and the detection end 121 of the negative probe 120b is horizontal or inclined, the liquid drop to be detected can be simultaneously contacted with the detection end 121 of the positive probe 120a and the detection end 121 of the negative probe 120b, and the stability of liquid drop detection is further ensured.

Further, at least four negative probes 120b are disposed around each positive probe 120a of the plurality of probes 120; alternatively, at least four positive electrode probes 120a are arranged around each negative electrode probe 120 b; thus, when the detection surface is not horizontal, the liquid drop to be detected can be simultaneously contacted with the detection end 121 of the positive electrode probe 120a and the detection end 121 of the negative electrode probe 120b, and the detection stability can be further ensured.

For example, at least two negative probes 120b are arranged around each positive probe 120a, when at least two negative probes 120b are arranged around one positive probe 120a, the distances between each negative probe 120b and the corresponding positive probe 120a are the same, so that the distances from the positive probe 120a to any one of the negative probes 120b adjacent thereto are the same, and therefore, it is ensured that the liquid drops dropped on the positive probe 120a can contact the negative probes 120b at the same time, and the detection stability is improved.

Referring to fig. 2, at least two positive probes 120a and at least two negative probes 120b are distributed in an array, that is, the probes 120 of the present embodiment are distributed in an array; thus, if the droplet detecting mechanism 010 is installed, the detecting surface is not horizontal, and it can be further ensured that the droplet to be detected can be dropped on the detecting surface, that is, the droplet to be detected can be dropped on the detecting end 121 of the positive probe 120a and the detecting end 121 of the negative probe 120b, so as to ensure the detecting accuracy, and the droplet detecting mechanism 010 has no harsh installation requirement.

Further, the plurality of probes 120 of this embodiment are distributed in a rectangular array, which can ensure the detection accuracy on one hand, and on the other hand, facilitate the uniform installation of the plurality of probes 120 on the circuit board 110.

The number of the probes 120 of the droplet detecting mechanism 010 can be selected according to the requirement, and the droplet detecting mechanism 010 of the embodiment includes 16 probes 120, and the 16 probes 120 are distributed in a rectangular array of 4 × 4.

In this embodiment, among the plurality of probes 120 in a row at the outer edge of the rectangular array, there are a positive probe 120a with two negative probes 120b arranged around it and a positive probe 120a with three negative probes 120b arranged around it, and similarly, there are also a negative probe 120b with two positive probes 120a arranged around it and a negative probe 120b with three positive probes 120a arranged around it; among the plurality of probes 120 positioned in the middle of the rectangular array, there are a positive probe 120a around which four negative probes 120b are disposed and a negative probe 120b around which four positive probes 120a are disposed.

It should be noted that, the 16 probes 120 distributed in a 4 × 4 rectangular array in this embodiment may also be regarded as having four rows of probe assemblies, each row of probe assemblies includes 2 positive probes 120a and 2 negative probes 120b, and the 2 positive probes 120a and the 2 negative probes 120b in each row are sequentially and alternately arranged. That is to say, when the plurality of probes 120 are distributed in a rectangular array, each row may include a plurality of probes 120 of the same number, and the plurality of probes 120 of each row include at least two positive probes 120a and at least two negative probes 120b, and the positive probes 120a and the negative probes 120b are sequentially and alternately distributed, so that the to-be-detected liquid drops dropping on the detection surface simultaneously contact the positive probes 120a and the negative probes 120b, so as to ensure that the liquid drops dropping on the detection surface, a short circuit can be realized, a circuit is connected, and then the amount of the liquid drops is detected.

When the plurality of probes 120 are distributed in only one row, the positive electrode probes 120a and the negative electrode probes 120b of the plurality of probes 120 may be alternately distributed in sequence.

In other embodiments, the number of the probes 120 of the droplet detecting mechanism 010 may also be 9, 20, and the like, and is not limited herein.

It should be noted that in other embodiments, the plurality of probes 120 may be uniformly distributed in a shape of a circle, a diamond, etc.

In other embodiments, the plurality of probes 120 may also present an alternating arrangement of a row of positive electrodes and a row of negative electrodes.

Referring to fig. 1, the cross section of the main body 132 of the mounting base 130 of the present embodiment is rectangular, that is, the shape of the cross section of the main body 132 matches the shape of the detection surface; this facilitates the miniaturization and compact design of the droplet detecting mechanism 010.

In other embodiments, the cross-section of the mounting seat 130 may also be circular, diamond-shaped, etc., and is not limited herein.

It should be noted that the circuit board 110 may also be electrically connected to the detection component, so that when a droplet is dropped on the detection surface and contacts the detection end 121 of the probe 120, the circuit is connected to transmit the detection signal to the detection component; further, each dropping liquid drops on the detection surface and an electrical signal is transmitted from the circuit board 110 to the detection assembly, so that the number of the dropping liquid drops dropping on the detection surface in a unit time can be recorded, and when the weight or the volume of each dropping liquid drop is known, the detection assembly can calculate the dropping amount of the dropping liquid in the unit time, for example: the volume of rainfall or rainfall, etc. may be calculated. The detection component can comprise a PLC singlechip and other controllers.

It should be further noted that, in other embodiments, the method for calculating the volume of rainfall or the rainfall and the like by the detection component according to the electrical signal transmitted by the circuit board 110 may also be similar to other related technologies, and will not be described herein again.

The droplet detection mechanism 010 provided by this embodiment can be used to detect the amount of rain or other liquid drops, and the droplet to be detected can be dropped on the detection surface and contacted with the detection end 121 of the probe 120, so as to change the electrical signal of the circuit board 110 at the instant when the droplet is contacted with the detection end 121, thereby realizing the amount of liquid drops.

In summary, the droplet detecting mechanism 010 provided in the embodiment of the present invention can be used for detecting rainfall or the dropping amount of other liquids, the droplet detecting mechanism 010 includes a mounting assembly 100 and at least one positive probe 120a and at least one negative probe 120b erected on the mounting assembly 100, the positive probe 120a and the negative probe 120b are both electrically connected to a circuit board 110 of the mounting assembly 100, the detecting ends 121 of the positive probe 120a and the negative probe 120b form a detecting surface together, and a droplet (for example, a raindrop) to be detected can drop on the detecting surface to contact with the detecting end 121 of the positive probe 120a and the detecting end 121 of the negative probe 120b for detection; because the detecting end 121 of the positive probe 120a and the detecting end 121 of the negative probe 120b which are vertically arranged on the mounting assembly 100 form a detecting surface, when the droplet detecting mechanism 010 is used, even if the detecting surface is not horizontally arranged, the droplet to be detected can accurately drop on the detecting end 121 of the positive probe 120a and the detecting end 121 of the negative probe 120b which form the detecting surface, so that the detecting precision is improved, and harsh mounting conditions are not required.

Referring to fig. 3, the embodiment further provides a rainfall measuring device 020, which includes a rainwater collecting assembly 200 and the droplet detecting mechanism 010; the rain water collecting assembly 200 has a rain water outlet 201, and the rain water outlet 201 is distributed opposite to the detection surface.

When rainfall measuring device 020 of this embodiment is used for detecting rainfall, can collect subassembly 200 with the rainwater when the rainfall and gather the rainwater, then make the rainwater of being collected in subassembly 200 collect and drip in the detection face of liquid droplet detection mechanism 010 from rainwater export 201 for the raindrop contacts with detection end 121 of probe 120, and then changes the signal of telecommunication of circuit board 110, realizes the effect that the rainfall detected.

Since the detection surface of the droplet detection mechanism 010 is composed of the detection end 121 of the positive electrode probe 120a and the detection end 121 of the negative electrode probe 120b, when the rainfall measurement device 020 is used, the detection surface is horizontal without the means of setting, installing and the like, and the droplets dropping from the rainwater outlet 201 of the rainwater collection assembly 200 can be in contact with the detection end 121 of the positive electrode probe 120a and the detection end 121 of the negative electrode probe 120b, so that the installation condition of the rainfall measurement device 020 is not harsh, and the rainfall detection precision can be improved.

Referring to fig. 3 and 4, the rainwater collection assembly 200 includes a funnel-shaped upper shell 220 and a rainwater generation member 221, the upper shell 220 has a collection chamber 222, the bottom end of the upper shell 220 has a mounting portion 223, the mounting portion 223 has a receiving chamber 224, the receiving chamber 224 is communicated with the collection chamber 222, the rainwater outlet 201 is opened at the bottom end of the mounting portion 223, the rainwater generation member 221 is inserted into the mounting portion 223, and a gap 225 is formed between the outer wall of the rainwater generation member 221 and the inner wall of the mounting portion 223; when rainwater is collected in the collection chamber 222, the rainwater flows toward the mounting portion 223 by its own weight, and drops from the rainwater outlet 201 to the detection surface through the gap 225 between the rainwater drop generator 221 and the mounting portion 223 by its own weight and the adsorption of water, thereby detecting the amount of rainwater.

The volume of the raindrops dropping through the gap 225 between the raindrop generator 221 and the mounting portion 223 is substantially uniform, that is, the weight of each raindrop dropping from the rain outlet 201 is the same, and thus the rainfall per unit time can be calculated from the number of raindrops dropping from the rain outlet 201 and the weight of the raindrops at different rainfalls. The unit time may be 1min, 2min, or 24h, or the total time from the start of rain to the end of rain.

It should be noted that the rainfall measurement device 020 can also be used for detecting rainfall in unit area, and the specific method thereof is similar to the related art and is not described herein again.

Referring to fig. 3, the rainwater collecting assembly 200 further includes a filtering assembly 230, the filtering assembly 230 is connected to the inner wall of the upper casing 220, the filtering assembly 230 is located above the collecting cavity 222, and the rainwater in the collecting cavity 222 needs to be filtered by the filtering assembly 230 and then flows to the accommodating cavity 224; thus, the gap 225 between the mounting portion 223 and the rain drop generator 221 is prevented from being clogged with impurities.

Referring to fig. 3, the filter assembly 230 includes a filter screen 231, the filter screen 231 is connected to the inner wall of the upper casing 220, the filter screen 231 is located above the accommodating cavity 224, and the rainwater in the collecting cavity 222 needs to be filtered by the filter screen 231 and then enters the accommodating cavity 224.

The filtering component 230 may also include other related art structures, which are not described in detail herein.

Referring to fig. 3, the rainfall measurement device 020 of the present embodiment further includes a bottom case 210 and a detection component (not shown) disposed in the bottom case 210, the mounting component 100 is disposed on the bottom case 210, and the circuit board 110 is electrically connected to the detection component; so that the circuit board 110 transmits a detection signal to the detection assembly after the raindrops drop on the detection surface to contact the detection end 121 of the positive probe 120a and the detection end 121 of the negative probe 120b, so as to calculate the rainfall by using the detection assembly.

The mounting seat 130 of the mounting assembly 100 of the present embodiment is detachably disposed on the bottom case 210; thus, the droplet detection mechanism 010 is easily attached to and detached from the bottom case 210, and the droplet detection mechanism 010 is easily maintained.

Each connecting portion 133 of the mounting base 130 is detachably connected to the bottom case 210 through the escape opening 111 of the circuit board 110 by a fastener (not shown), and the circuit board 110 is sandwiched between the mounting base 130 and the bottom case 210; thus, the circuit board 110 may be interposed between the mounting base 130 and the bottom case 210 through the mounting base 130 connected to the bottom case 210 without being directly connected to the bottom case 210, thereby reducing a number of mounting and dismounting steps and facilitating mounting and dismounting of the droplet detection mechanism 010.

When the raindrop detection device of the embodiment is used, rainwater can be collected by the collection cavity 222 of the upper shell 220, rainwater filtered by the filter assembly 230 flows into the accommodation cavity 224, and flows to the rainwater outlet 201 from a gap 225 formed between the raindrop generation piece 221 and the installation portion 223, raindrops dropping from the rainwater outlet 201 drop on a detection surface, when the raindrops contact the detection end 121 of the positive probe 120a and the detection end 121 of the negative probe 120b, the circuit board 110 can transmit detection signals to the detection assembly, so that the detection assembly can calculate rainfall according to the number of raindrops dropping on the detection surface in unit time.

In summary, the rainfall measurement device 020 provided by the embodiment of the invention includes the droplet detection mechanism 010, which has higher rainfall detection precision and further does not need harsh installation conditions.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A droplet detection mechanism, comprising: the device comprises an installation component, at least one anode probe and at least one cathode probe, wherein the anode probe and the cathode probe are all vertically arranged on the installation component, and the detection ends of the anode probe and the cathode probe jointly form a detection surface.

2. The droplet detection mechanism according to claim 1, wherein at least two negative probes are provided around each positive probe; alternatively, the first and second electrodes may be,

at least two positive electrode probes are arranged around each negative electrode probe.

3. The droplet detection mechanism according to claim 1, wherein at least four negative probes are provided around each positive probe; alternatively, the first and second electrodes may be,

at least four positive probes are arranged around each negative probe.

4. The droplet detection mechanism according to claim 1, wherein the droplet detection mechanism comprises at least two positive probes and at least two negative probes, and the positive probes and the negative probes are alternately distributed in sequence.

5. The droplet detection mechanism according to claim 1, wherein the droplet detection mechanism comprises at least two positive probes and at least two negative probes, and the at least two positive probes and the at least two negative probes are distributed in an array.

6. The mechanism of claim 1, wherein the mounting assembly includes a circuit board, the positive electrode probe includes an electrode and an insulating housing covering the electrode, one end of the electrode is electrically connected to the circuit board, and the other end of the electrode protrudes from the insulating housing to form the detecting end.

7. The drop detection mechanism of claim 1, wherein the positive probe and the negative probe are both disposed perpendicular to the mounting assembly.

8. The droplet detection mechanism according to claim 1, wherein the mounting assembly further comprises a mounting base and a circuit board, the positive probe and the negative probe are inserted into and matched with the mounting base, and the positive probe and the negative probe penetrate through the mounting base and are electrically connected with the circuit board.

9. The drop detection mechanism of claim 8, wherein the detection surface is parallel to the circuit board.

10. A rainfall measurement device comprising a rain water collection assembly and a droplet detection mechanism as claimed in any one of claims 1 to 7; the rainwater collection assembly is provided with a rainwater outlet, and the rainwater outlet and the detection surface are distributed oppositely.

11. The rainfall measurement device of claim 10, further comprising a bottom case and a detection assembly disposed within the bottom case, wherein the mounting assembly is disposed on the bottom case and comprises a circuit board electrically connected to the detection assembly.

12. The rainfall measurement device of claim 11, wherein the mounting assembly further comprises a mounting base removably connected with the bottom shell; the positive probe and the negative probe are matched with the mounting seat in an inserting mode.

13. The rainfall measurement device of claim 12, wherein the mounting block comprises a body portion and two connection portions, the two connection portions are respectively connected to two sides of the body portion, and the positive electrode probe and the negative electrode probe are in plug fit with the body portion; and each connecting part is detachably connected with the bottom shell through a fastener, and the circuit board is clamped between the mounting seat and the bottom shell.

14. The rainfall measuring device of claim 13, wherein the circuit board is provided with two avoiding openings, the two avoiding openings correspond to the two connecting portions one by one, and the fastening member correspondingly arranged on each connecting portion can pass through the avoiding opening to be connected with the bottom case.