Novel weighing type rainfall sensor

Abstract

The utility model discloses a novel weighing type rainfall sensor, which comprises a base, a protective shell and a windproof ring, a bearing disc is arranged above the base, a weighing unit is arranged at the top end of the bearing disc, a collecting assembly is arranged at the top end of the weighing unit, the protective shell comprises an upper shell and a lower shell, a heating assembly is arranged in the upper shell, and the windproof ring is arranged in the lower shell. A storage battery is arranged in the base, the base and the bearing disc are connected through a fastening bolt, and a rainfall generation detector and a temperature sensor are arranged in the protection shell. Compared with the prior art, the novel weighing type rainfall sensor is higher in applicability, in snowy weather in winter, due to the fact that the environment temperature is too low, snow falling at a water bearing opening cannot be melted, and even under the condition that the snowfall is too large, the water bearing opening is blocked by the snowy, and therefore the rainfall sensor cannot be damaged. Snow can be melted through the heating assembly and falls into the collecting assembly below to be monitored, and therefore the snowfall can be collected and weighed to observe the specific process of snowfall change.

Description

Technical Field

[0001] The utility model relates to the technical field of precipitation sensors, in particular to a novel weighing precipitation sensor. Background Technique

[0002] At present, the meteorological departments in China mainly rely on manual observation for solid precipitation, which has many disadvantages such as poor timeliness and insufficient spatio-temporal density, and cannot comprehensively and continuously reflect the changes in the snowfall process. The weighing precipitation sensor is an instrument used in the meteorological industry for precipitation observation. It is designed based on the single-point pressure measurement principle, and realizes the observation of precipitation by measuring the mass change of the water in the water bucket placed on the pressure measurement element.

[0003] However, at present, the diameter of the upper water inlet of the weighing precipitation sensor is limited. In winter with heavy snowfall, due to the too low ambient temperature, the snow falling on the water inlet cannot melt, resulting in the inability to collect and weigh the snowfall, which affects the monitoring of the snowfall amount and the snowfall change process. Even in the case of too much snowfall, the water inlet will be covered and blocked by heavy snow, thus making it impossible to realize the automatic observation of snowfall, and the applicability in the actual use process is relatively low. Therefore, we propose a novel weighing precipitation sensor. Content of the Utility Model

[0004] The main purpose of the utility model is to propose a novel weighing precipitation sensor, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a novel weighing precipitation sensor, including a base, a protective housing and a windproof ring. The base and the windproof ring are both fixedly installed on the foundation. A bearing plate is arranged above the base. A weighing unit is arranged at the top of the bearing plate. A collection component is arranged at the top of the weighing unit. The protective housing includes an upper housing and a lower housing. A heating component is arranged inside the upper housing. A storage battery is fixedly installed inside the base. The base and the bearing plate are fixedly connected by setting fastening bolts. A precipitation occurrence detector and a temperature sensor are fixedly installed inside the protective housing.

[0006] As a further description of the above technical solution, the base includes an upper flange, a lower flange and a column body. The upper flange, the lower flange and the column body are integrally formed. The upper flange is fixedly connected with the bearing plate through fastening bolts. The lower flange is fixedly connected to the foundation. The storage battery is fixedly installed inside the column body.

[0007] As a further description of the above technical solution, the upper housing and the lower housing are integrally formed. The heating component is fixedly installed inside the upper housing. The lower housing is fixedly connected to the bearing plate. The collection component and the weighing unit are both arranged inside the lower housing.

[0008] As a further description of the above technical solution, the weighing unit includes a load element, an electronic unit and a precipitation information processing unit, and the load element, the electronic unit and the precipitation information processing unit are all fixedly installed on the top of the bearing plate.

[0009] As a further description of the above technical solution, the load element, the electronic unit, the storage battery, the precipitation occurrence detector and the temperature sensor are respectively electrically connected to the precipitation information processing unit through wires.

[0010] As a further description of the above technical solution, the collection assembly includes a protection ring and a tray. A plurality of brackets are uniformly and fixedly connected to the bottom end of the protection ring. Three support pads and three limit pieces are uniformly and fixedly connected to the top of the tray. A collection bucket is placed on the top of the tray.

[0011] As a further description of the above technical solution, the bottom ends of the plurality of brackets are all fixedly connected to the top of the bearing plate. The three support pads and the three limit pieces are evenly spaced. The three limit pieces all abut against the lower end of the outer wall of the collection bucket.

[0012] As a further description of the above technical solution, the heating assembly includes a heat insulation ring. A heat conduction ring is fixedly connected to the inner wall of the heat insulation ring. A heating wire is fixedly installed inside the heat conduction ring. A plurality of heat conduction discs are uniformly arranged inside the heat conduction ring. A plurality of through holes are uniformly formed in each heat conduction disc. A plurality of insertion rods are uniformly and fixedly connected to the bottom end of each heat conduction disc. A plurality of groups of insertion pipes are uniformly and fixedly connected to the inner wall of the heat conduction ring.

[0013] As a further description of the above technical solution, the heat insulation ring is fixedly connected to the inner wall of the upper shell. The heating wire is electrically connected to the precipitation information processing unit through a wire. The plurality of heat conduction discs are distributed up and down, and the through holes formed in two adjacent heat conduction discs are staggered. The number of each group of insertion pipes is the same as the number of the insertion rods fixed to the bottom end of the heat conduction disc and they are slidably connected.

[0014] As a further description of the above technical solution, a superhydrophobic coating is coated on the surface of the heat conduction ring and the surface of the heat conduction disc.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] By setting the heating assembly, the applicability of the weighing type precipitation sensor is higher. In winter with heavy snow, due to the too low ambient temperature, the snow falling on the water receiving port cannot melt, and even in the case of too much snowfall, the water receiving port will be covered and blocked by heavy snow. The heating assembly can be used to melt the snow and let it fall into the lower collection assembly for monitoring, so as to collect and weigh the snow to observe the specific process of the snowfall change. Description of the Drawings

[0017] Figure 1 This is a schematic diagram of the overall structure of a new type of weighing precipitation sensor of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure at the collection component and weighing unit of a new type of weighing precipitation sensor of the present utility model;

[0019] Figure 3 This is a schematic diagram of the collection component structure of a new type of weighing precipitation sensor of the present utility model;

[0020] Figure 4 This is an exploded view of the heating component structure of a new type of weighing precipitation sensor of the present utility model;

[0021] Figure 5 This is a circuit connection block diagram of a new type of weighing precipitation sensor of the present utility model;

[0022] Figure 6 This is a structural diagram of the precipitation information processing unit of a new type of weighing precipitation sensor of the present utility model.

[0023] In the figure: 1, base; 2, protective housing; 3, windproof ring; 4, bearing plate; 5, weighing unit; 6, collection component; 7, heating component; 8, fastening bolt; 11, upper flange; 12, lower flange; 13, column; 21, upper housing; 22, lower housing; 51, load element; 52, electronic unit; 53, precipitation information processing unit; 61, protective ring; 62, tray; 63, bracket; 64, support pad; 65, limit piece; 66, collection bucket; 71, heat insulation ring; 72, heat conduction ring; 73, heat conduction plate; 74, through hole; 75, insertion rod; 76, insertion pipe. Specific embodiments

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Please refer to Figure 1-6 , the present utility model provides a technical solution: a new type of weighing precipitation sensor, which includes a base 1, a protective housing 2 and a wind protection ring 3. The base 1 includes an upper flange 11, a lower flange 12 and a column 13. The upper flange 11, the lower flange 12 and the column 13 are integrally formed. The upper flange 11 is fixedly connected to a bearing plate 4 through fastening bolts 8. The lower flange 12 is fixedly connected to the ground foundation. A storage battery is fixedly installed inside the column 13. The top of the upper flange 11 is fixedly connected to a bearing plate 4 through fastening bolts 8. The protective housing 2 includes an upper housing 21 and a lower housing 22. The lower housing 22 is fixedly connected to the bearing plate 4. A collection assembly 6 and a weighing unit 5 are arranged inside the lower housing 22. A heating assembly 7 is arranged inside the upper housing 21. The upper housing 21 and the lower housing 22 are integrally formed. A water receiving port is arranged at the upper end of the upper housing 21. A precipitation occurrence detector and a temperature sensor are fixedly installed inside the protective housing 2. The detection end of the temperature sensor is in contact with the external environment for real-time detection of the current ambient temperature. The protective housing 2 is specifically in a "convex" shape, with the characteristics of being narrow at the upper part and wide at the lower part. Such a structure has good sealing performance, which can not only reduce the disturbance of the external environment to the internal measurement environment, but also has a good protective effect on the internal devices.

[0028] It should be noted here that the wind protection ring 3 is an important device for increasing the snowfall capture rate. Its top height is slightly higher than the water receiving port. An opening is designed at the 1 / 3 position of the wind protection ring 3 to facilitate on-site maintenance by station personnel. The outer surface of the wind protection ring 3 is sprayed with an anti-corrosion and anti-oxidation material coating. It belongs to the prior art in this field, so the specific structural principle will not be described here. To ensure that the sensor is affected by as few interference factors as possible, the wind protection ring 3 needs to be independently pre-buried in the foundation and installed separately from the sensor.

[0029] A weighing unit 5 is arranged at the top of the bearing plate 4. The weighing unit achieves accurate precipitation measurement within the full range through technologies such as temperature compensation and digital filtering. The weighing unit 5 includes a load element 51, an electronic unit 52 and a precipitation information processing unit 53. The load element 51, the electronic unit 52 and the precipitation information processing unit 53 are all fixedly installed at the top of the bearing plate 4. The electronic unit 52, the storage battery, the precipitation occurrence detector and the temperature sensor are respectively electrically connected to the precipitation information processing unit 53 through wires.

[0030] It is explained here that the load cell 51 is the core of the weighing unit 5. The load cell 51 adopts a single-point pressure measurement technology, which is based on the resistance strain technology. The sensitive beam produces elastic deformation under the action of external force, so that the resistance strain gauge attached to its surface also produces deformation. After the resistance strain gauge is deformed, its resistance value will change, and then the corresponding measurement circuit converts this resistance change into an electrical signal, and then obtains the weight; the electronic unit 52 is electrically connected to the load cell 51 through a wire. The function of the electronic unit 52 is to convert the signal measured by the load cell 51, and then obtain the mass data after temperature correction processing; the precipitation information processing unit 53 is composed of a central processing unit, a clock circuit, a data storage device, a signal relay, an RS-232 driver and other parts. Its main function is to sample the signal of the weighing unit, and perform data calculation processing on the sampled value, calculate the minute precipitation and the cumulative precipitation, and realize quality control, record storage, and realize data communication and transmission. The processing unit can output a rainfall switch signal (simulating a tipping bucket rainfall sensor) and can also directly provide a digital quantity through an RS232 interface. Its specific structure refers to Figure 6 The above technology can be realized by simple programming by technicians in this field, so its specific structure and working principle will not be described in detail in this article.

[0031] A collecting assembly 6 is arranged at the top of the weighing unit 5. In order to prevent the two from freezing and contacting and affecting normal observation and protection, a gap is arranged between the protective shell 2 and the collecting assembly 6. The precipitation detector is arranged at the upper end of the collecting assembly 6. The collecting assembly 6 is distributed in the lower shell 22. The collecting assembly 6 includes a protective ring 61 and a tray 62. The tray 62 is horizontally fixedly connected to the weighing unit 5. The bottom end of the protective ring 61 is evenly fixedly connected to a plurality of brackets 63. The bottom ends of the plurality of brackets 63 are all fixedly connected to the top of the carrying plate 4. The top end of the tray 62 is evenly fixedly connected to three support pads 64 and three limit plates 65. The three support pads 64 and the three limiting plates 65 are evenly spaced. A collecting bucket 66 is placed on the top of the tray 62. The three limiting plates 65 are all against the lower end of the outer wall of the collecting bucket 66, so as to keep the collecting bucket 66 in the central position of the top of the tray 62. It should be noted that it is necessary to ensure that the edge of the collecting bucket 66 cannot contact the protective ring 61 and the bracket 63. In the summer, evaporation-inhibiting oil should be put into the collecting bucket 66, and in the winter, evaporation-inhibiting oil and antifreeze should be put into it. The evaporation-inhibiting oil can be put into a thin layer that can completely cover the bottom of the bucket, and the antifreeze should be put into a corresponding amount according to the local extreme temperature conditions over the years.

[0032] The heating component 7 includes a heat insulation ring 71, the heat insulation ring 71 is fixedly connected to the inner wall of the upper housing 21, a heat conduction ring 72 is fixedly connected to the inner wall of the heat insulation ring 71, a heating wire is fixedly installed inside the heat conduction ring 72, the heating wire is electrically connected to the precipitation information processing unit 53 through a wire, a plurality of heat conduction disks 73 are uniformly arranged inside the heat conduction ring 72, a plurality of through holes 74 are uniformly formed in each heat conduction disk 73, the plurality of heat conduction disks 73 are distributed up and down, and the through holes 74 formed in two adjacent heat conduction disks 73 are staggeredly distributed. A plurality of insertion rods 75 are uniformly fixedly connected to the bottom end of each heat conduction disk 73, and a plurality of groups of insertion pipes 76 are uniformly fixedly connected to the inner wall of the heat conduction ring 72. The number of each group of insertion pipes 76 is the same as the number of the insertion rods 75 fixed to the bottom end of the heat conduction disk 73 and are slidably connected. The surfaces of the heat conduction ring 72 and the heat conduction disks 73 are both coated with a superhydrophobic coating. The setting of the superhydrophobic coating can prevent rainwater or melted snow water on it from adhering to the surfaces of the heat conduction ring 72 and the heat conduction disks 73, so that the amount of water collected by the collection component 6 is more accurate. The mutual cooperation of the insertion rods 75 and the insertion pipes 76 can facilitate the staff to install and disassemble the heat conduction disks 73 and facilitate the cleaning of the heat conduction disks 73.

[0033] It should be noted that the present utility model is a new type of weighing precipitation sensor. During the use in rainy weather, the temperature sensor will detect the external environment temperature in real time and transmit it to the precipitation information processing unit 53. Rainwater falls onto the heating assembly 7 through the water receiving port on the upper housing 21, and then falls through the through holes 74 on the heat conducting plate 74 into the collection bucket 66 of the collection assembly 6 inside the lower housing 22. Before falling into the collection bucket 66, the precipitation detector will detect the precipitation information and transmit it to the precipitation information processing unit 53. The precipitation information processing unit 53 will then detect the mass change of the collection bucket 66 by the weighing unit 5 according to the internally set program to realize the observation of the rainfall amount; when the temperature of the external environment detected by the temperature sensor is below zero degree, after the precipitation information processing unit 53 receives the information that the temperature is below zero degree, it will control the heating wire to heat according to the internally set program. The heating temperature should not be too high to avoid the evaporation of water and affect the collection of rain and snow. If it encounters snowy weather, the snowflakes fall onto the heat conducting plate 73 of the heating assembly 7 through the water receiving port. The heat generated by the heating wire will be transmitted to the heat conducting ring 72 and the heat conducting plate 73, so as to melt the snowflakes thereon. The melted snow water will fall through the through holes 74 into the collection assembly 6 inside the lower housing 22. The through holes 74 provided on two adjacent heat conducting plates 73 are arranged in a staggered manner, which can prevent some snowflakes from directly falling into the collection assembly 6 through the through holes 74. Subsequently, the precipitation detector will detect the information of the falling snow water and transmit it to the precipitation information processing unit 53. The precipitation information processing unit 53 will then detect the mass change of the collection bucket 66 by the weighing unit 5 according to the internally set program to realize the observation of the snowfall amount. Compared with the existing new type of weighing precipitation sensor, the present utility model has higher applicability. In the heavy snow weather in winter, due to the too low environmental temperature, the snow falling on the water receiving port cannot melt, and even in the case of too large snowfall amount, the water receiving port will be blocked by heavy snow. The snow can be melted by the heating assembly and fall into the lower collection assembly for monitoring, so as to collect and weigh the snowfall to observe the specific process of the snowfall change.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of weighing precipitation sensor, comprising a base (1), a protective housing (2) and a wind shield (3), wherein the base (1) and the wind shield (3) are both fixedly installed on the ground, characterized in that, Above the base (1), there is a bearing plate (4). At the top of the bearing plate (4), there is a weighing unit (5). At the top of the weighing unit (5), there is a collection assembly (6). The protective housing (2) includes an upper housing (21) and a lower housing (22). Inside the upper housing (21), there is a heating assembly (7). A storage battery is fixedly installed inside the base (1). The base (1) and the bearing plate (4) are fixedly connected by fastening bolts (8). Inside the protective housing (2), a precipitation occurrence detector and a temperature sensor are fixedly installed.

2. The novel weighing precipitation sensor according to claim 1, wherein The base (1) includes an upper flange (11), a lower flange (12), and a column (13). The upper flange (11), the lower flange (12), and the column (13) are integrally formed. The upper flange (11) is fixedly connected to the bearing plate (4) by fastening bolts (8). The lower flange (12) is fixedly connected to the ground foundation. The storage battery is fixedly installed inside the column (13).

3. A novel weighing precipitation sensor according to claim 1, characterized in that, The upper housing (21) and the lower housing (22) are integrally formed. The heating assembly (7) is fixedly installed inside the upper housing (21). The lower housing (22) is fixedly connected to the bearing plate (4). Both the collection assembly (6) and the weighing unit (5) are arranged inside the lower housing (22).

4. A novel weighing precipitation sensor according to claim 1, characterized in that, The weighing unit (5) includes a load element (51), an electronic unit (52), and a precipitation information processing unit (53). The load element (51), the electronic unit (52), and the precipitation information processing unit (53) are all fixedly installed at the top of the bearing plate (4).

5. The novel weighing precipitation sensor according to claim 4, characterized in that, The load element (51), the electronic unit (52), the storage battery, the precipitation occurrence detector, and the temperature sensor are respectively electrically connected to the precipitation information processing unit (53) through wires.

6. The novel weighing precipitation sensor according to claim 1, characterized in that, The collection assembly (6) includes a protective ring (61) and a tray (62). At the bottom of the protective ring (61), a number of brackets (63) are evenly and fixedly connected. At the top of the tray (62), three support pads (64) and three limit pieces (65) are evenly and fixedly connected. A collection bucket (66) is placed on the top of the tray (62).

7. A novel weighing precipitation sensor according to claim 6, characterized in that, The bottoms of a number of the brackets (63) are all fixedly connected to the top of the bearing plate (4). The three support pads (64) and the three limit pieces (65) are evenly spaced. The three limit pieces (65) all abut against the lower end of the outer wall of the collection bucket (66).

8. A novel weighing precipitation sensor according to claim 4, characterized in that, The heating assembly (7) includes a heat insulation ring (71). Inside the inner wall of the heat insulation ring (71), there is a heat conduction ring (72). Inside the heat conduction ring (72), a heating wire is fixedly installed. Inside the heat conduction ring (72), a number of heat conduction plates (73) are evenly arranged. A number of through holes (74) are evenly formed in each heat conduction plate (73). At the bottom of each heat conduction plate (73), a number of insertion rods (75) are evenly and fixedly connected. A number of groups of insertion pipes (76) are evenly and fixedly connected to the inner wall of the heat conduction ring (72).

9. The novel weighing precipitation sensor according to claim 8, characterized in that, The heat insulation ring (71) is fixedly connected to the inner wall of the upper housing (21). The heating wire is electrically connected to the precipitation information processing unit (53) through a wire. A plurality of the heat conduction discs (73) are distributed up and down, and the through holes (74) formed in two adjacent heat conduction discs (73) are staggeredly distributed. The number of each group of insertion pipes (76) is the same as the number of insertion rods (75) fixed to the bottom end of the heat conduction disc (73), and they are slidably connected.

10. A novel weighing precipitation sensor according to claim 8, characterized in that, The surfaces of both the heat conduction ring (72) and the heat conduction disc (73) are coated with a superhydrophobic coating.

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