Field electronic snow pressure measuring device

Abstract

The field electronic snow pressure measuring device comprises a transparent cylinder wall, an electronic pressure measuring device is arranged at the top end of the transparent cylinder wall, a handle is arranged at the top of the electronic pressure measuring device, and stainless steel ice breaking teeth are arranged at the bottom of the transparent cylinder wall; the other end of each stainless steel icebreaking tooth is a cambered surface, and the radian of each stainless steel icebreaking tooth is the same as the inner diameter of the transparent cylinder wall; two bosses of which the centers are drilled are arranged on the cambered surface; the bosses are connected with the transparent cylinder wall; eight bosses are arranged at the bottom of the transparent cylinder wall, holes are drilled in the two sides of each boss, stainless steel shafts are installed in the holes, and the stainless steel shafts penetrate through the bosses on the stainless steel icebreaking teeth, so that the stainless steel icebreaking teeth can be folded within the range of 0-90 degrees at the bottom of the transparent cylinder wall. The snow scale overcomes the use defects that the snow scale in use at present cannot be observed normally due to the fact that an old-fashioned rod type scale is tedious in operation, inconvenient to read, numerous in parts and easy to damage and lose, and has the advantages of being convenient to carry by experimenters, quicker and more accurate in reading and more convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of snow pressure measurement technology, and in particular to an electronic snow pressure measurement device for the field. Background Technology

[0002] The technical problems with the currently used old-style snow pressure gauges include:

[0003] The cylinder is made of iron, making the instrument heavy and inconvenient to carry. Gloves must be worn in cold regions, and it cannot be used by hand. The material is also prone to rust and deformation, which affects the accuracy of the measurement.

[0004] The old-fashioned weighing system used a bar scale, which was cumbersome to operate, inconvenient to read, had many parts, was easily damaged or lost, and often prevented normal observation.

[0005] The old-style pressure gauge required a small shovel for use, which was complicated to operate and made it difficult to remove mud and other debris mixed in the snow sample, resulting in unrepresentative samples. Utility Model Content

[0006] In order to overcome the above technical problems, the purpose of this utility model is to provide an electronic snow pressure measuring device for field use, which is easy for experimental personnel to carry, provides more accurate readings, and is easier to operate.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An electronic snow pressure measuring device for field use includes a transparent cylindrical wall 1, an electronic pressure measuring device 2 is installed at the top of the transparent cylindrical wall 1, a handle 3 is installed at the top of the electronic pressure measuring device 2, and stainless steel ice-breaking teeth 4 are installed at the bottom of the transparent cylindrical wall 1.

[0009] There are eight stainless steel ice-breaking teeth 4 in total. The tip of the stainless steel ice-breaking tooth 4 is at a 45° angle, and the other end is an arc surface with the same curvature as the inner diameter of the transparent cylinder wall 1. There are two bosses with central drill holes on the arc surface, and the bosses are connected to the transparent cylinder wall 1.

[0010] The bottom of the transparent cylindrical wall 1 is provided with eight protrusions with holes drilled on both sides. A stainless steel shaft with a diameter of 1 mm and a length of 15 mm is installed in the holes and passes through the protrusions on the ice-breaking teeth, so that the stainless steel ice-breaking teeth 4 can be folded within the range of 0° to 90° at the bottom of the transparent cylindrical wall 1.

[0011] The transparent cylindrical wall 1 has an annular groove 5 inside. The annular groove 5 consists of two parts with different inner diameters. The upper part of the annular groove has an inner diameter of 1 mm and an annular electromagnet 6 is installed at the top of the groove. Eight magnets 8 that can move vertically inside the groove are set inside the upper groove. The bottom of the magnets 8 is welded with an arc-shaped stainless steel spring 7. The lower part of the annular groove has an inner diameter of 0.5 mm and is filled with raw materials, leaving only eight vertical grooves with a spacing of 45°, a width of 11 mm, and a length of 66.6 mm. One end of the stainless steel spring 7 is connected to the dual-axis bracket 9 via a shaft with a diameter of 1 mm and a length of 8 mm, and the other end is welded with a magnet 8. The magnet 8 has an outer diameter of 1 mm and can move up and down in the upper part of the annular groove. The stainless steel spring 7 has a thickness of 0.05 mm and can move up and down in the lower part of the annular groove. One end of the dual-axis bracket 9 is connected to the stainless steel spring 7 via a shaft with a diameter of 1 mm and a length of 8 mm, and the other end is connected to the protrusion of the ice-breaking tooth 4 via a shaft with a diameter of 1 mm and a length of 8 mm. The magnet 8 and the stainless steel spring 7 are welded together. When moving, the dual-axis bracket 9 is displaced, pushing the ice-breaking tooth to rotate within a 90° range in both vertical and horizontal directions.

[0012] The electronic pressure gauge 2 is equipped with a tension sensor and has vertical moving slots on both sides, each 50mm long and 10mm wide. The transparent cylindrical wall 1 is connected to the electronic pressure gauge 2 via the tension sensor. The upper end of the transparent cylindrical wall 1 has two circular protrusions with a diameter of 10mm, which are located in the vertical moving slots. The protrusions have pressure relief holes that connect the inside and outside, which can balance the atmospheric pressure inside and outside the transparent cylindrical wall 1 during use. The transparent cylindrical wall 1 can move up and down within the vertical moving slot of the electronic pressure gauge 2. The electronic pressure gauge 2 is equipped with an integrated control circuit. The deformation of the tension sensor in the control circuit is converted into a digital signal by an integrated circuit board and input to the control circuit.

[0013] The annular electromagnet 6 is connected to both ends of the double-pole double-throw switch in the control circuit via two thin copper wires, and the thin copper wires are embedded inside the transparent cylindrical wall 1.

[0014] In the control circuit, the single-pole single-throw push button switch serves as the main switch. One end is connected in series with the 5V power supply, and the other end is connected in parallel with two branches. One branch is an electromagnet circuit consisting of a double-pole double-throw push button switch as an electromagnet switch and a ring electromagnet 6. The other branch is an electronic pressure measuring circuit consisting of a tension sensor, an integrated circuit board, and a digital display screen.

[0015] The beneficial effects of this utility model.

[0016] 1. This utility model can be operated by hand, making the measurement process more convenient.

[0017] 2. The measurement method of this utility model uses a sensor instead of a bar scale, making the readings more accurate and intuitive.

[0018] 3. This utility model is highly integrated, modular, and modernized, and is easy to repair and replace.

[0019] 4. The ice-breaking teeth of this utility model are single-edged, which can not only break ice, but also automatically close the bottom of the cylinder, replacing the small shovel currently in use and simplifying the operation process.

[0020] 5. The cylinder of this utility model uses transparent plexiglass instead of metal, which reduces the weight of the cylinder, making it easier to carry in the field, and also makes it easier to observe the measurement results. Attached image description:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 These are the three views of the structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the method of using this utility model. Figure 1 .

[0024] Figure 4 This is a schematic diagram of the method of using this utility model. Figure 2 .

[0025] Figure 5 This is a schematic diagram of the control circuit of this utility model.

[0026] Figure 6 This is a schematic diagram of the parts of this utility model.

[0027] Figure 7 This is a schematic diagram showing the connection between the electronic pressure gauge and the pressure measuring cylinder of this utility model.

[0028] Figure 8 This is a schematic diagram of the A / D conversion chip connection of this utility model.

[0029] Figure 9 This is a schematic diagram of the snow pressure calculation chip connection of this utility model.

[0030] Figure 10 This is a schematic diagram of the connection of the digital display screen of this utility model. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1-6 As shown:

[0033] An electronic snow pressure measuring device for field use includes a transparent cylindrical wall 1, an electronic pressure measuring device 2 is installed at the top of the transparent cylindrical wall 1, a handle 3 is installed at the top of the electronic pressure measuring device 2, and stainless steel ice-breaking teeth 4 are installed at the bottom of the transparent cylindrical wall 1.

[0034] There are eight stainless steel ice-breaking teeth 4 in total. The tip of the stainless steel ice-breaking tooth 4 is at a 45° angle, and the other end is an arc surface with the same curvature as the inner diameter of the transparent cylinder wall 1. There are two bosses with central drill holes on the arc surface, and the bosses are connected to the transparent cylinder wall 1.

[0035] The bottom of the transparent cylindrical wall 1 is provided with a boss with a central drilled hole. A stainless steel shaft is installed in the hole and is connected to the boss on the stainless steel ice-breaking tooth 4, so that the ice-breaking tooth can be folded within the axial range of 0° to 90° at the bottom of the transparent cylindrical wall 1 with the stainless steel shaft as the axis.

[0036] An annular groove 5 is formed inside the transparent cylindrical wall 1, and an annular electromagnet 6 is installed at the top of the annular groove 5; the annular groove 5 of the transparent cylindrical wall consists of two parts with different inner diameters, as shown in the schematic diagram of the annular groove 5. Figure 6 As shown, the annular groove 5 has an upper inner diameter of 1mm and an annular electromagnet 6 is installed at the top of the groove. Eight magnets 8 that can move vertically inside the groove are set inside the upper groove. The bottom of the magnets 8 is welded with an arc-shaped stainless steel spring 7. The lower inner diameter of the annular groove 5 is 0.5mm and is filled with raw materials, leaving only eight vertical grooves with a spacing of 45°, a width of 11mm, and a length of 66.6mm.

[0037] The stainless steel spring 7 is curved and 0.05mm thick, and is commonly used in the manufacture of measuring tapes. One end of the stainless steel spring 7 is connected to the dual-axis bracket 9 via a shaft with a diameter of 1mm and a length of 8mm, and the other end is welded with a magnet 8. The magnet 8 has an outer diameter of 1mm and can move up and down within the upper part of the annular groove. The stainless steel spring 7 is 0.05mm thick and can move up and down within the lower part of the annular groove. One end of the dual-axis bracket 9 is connected to the stainless steel spring 7 via a shaft with a diameter of 1mm and a length of 8mm, and the other end is connected to the boss of the ice-breaking tooth 4 via a shaft with a diameter of 1mm and a length of 8mm. The magnet 8 and the stainless steel spring 7 are welded together. When they move, the dual-axis bracket 9 is displaced, pushing the ice-breaking tooth to rotate within a 90° range in both vertical and horizontal directions.

[0038] The electronic pressure gauge 2 is equipped with a tension sensor and has vertical moving slots on both sides, each 50mm long and 10mm wide. The transparent cylindrical wall 1 is connected to the electronic pressure gauge 2 via the tension sensor. The upper side of the transparent cylindrical wall 1 has two circular protrusions with a diameter of 10mm. These circular protrusions can move vertically up and down within the vertical moving slots of the electronic pressure gauge 2. The electronic pressure gauge 2 is equipped with an integrated control circuit. The deformation of the tension sensor is converted into a digital signal by the integrated circuit board and input to the control circuit. During measurement, the reading on the digital display screen of the electronic pressure gauge is the snow pressure of the current snow sample.

[0039] The control circuit includes a 5V power supply, a single-pole single-throw button switch, a double-pole double-throw button switch, a sensor, an integrated circuit board with a reset button, a digital display screen, and a ring electromagnet. The components are connected by copper wires and soldered at the interfaces.

[0040] The annular electromagnet 6 is connected to both ends of the double-pole double-throw switch in the control circuit via two thin copper wires, and the thin copper wires are embedded inside the transparent cylindrical wall 1.

[0041] like Figures 7-10 As shown, the control circuit uses an HZC-MS1 strain gauge tensile sensor. The HZC-MS1 strain gauge tensile sensor undergoes mechanical deformation under stress, causing a change in resistance, which converts the measured sample weight into an electrical signal. The integrated circuit board includes an operational amplifier, an A / D converter chip, and a snow pressure calculation chip. The operational amplifier is an INA126 type, which amplifies the small analog signal output by the sensor for subsequent use. The A / D converter chip is an HX711 type 24-bit A / D converter chip, which converts the amplified analog signal into a digital signal for subsequent calculation. The snow pressure calculation chip is an AT89C51 microcontroller, which calculates the sample weight value measured by the tensile sensor. The digital display screen is an LCD1602 type liquid crystal display screen, which displays the snow pressure value calculated by the snow pressure calculation chip on the screen.

[0042] In the control circuit, the single-pole single-throw push-button switch serves as the main switch, with one end connected in series with the 5V power supply and the other end connected in parallel with two branches. One branch is an electromagnet circuit consisting of a double-pole double-throw push-button switch as an electromagnet switch and a ring electromagnet 6, and the other branch is an electronic pressure measuring circuit consisting of a tension sensor, an integrated circuit board, and a digital display screen.

[0043] The stainless steel ice-breaking tooth 4 is installed at the bottom of the transparent cylindrical wall 1. A groove is cut inside the transparent cylindrical wall 2, and a ring-shaped electromagnet 6 is installed at the top of the groove. A dual-axis bracket 9 is installed on the stainless steel ice-breaking tooth 4. One end of the dual-axis bracket 9 is connected to the ice-breaking tooth 4 via a shaft, and the other end is connected to a stainless steel spring 7 via another shaft. One end of the stainless steel spring 7 is connected to the dual-axis bracket 9, and the other end is equipped with a magnet 8. The magnet can move vertically within the upper part of the ring groove inside the transparent cylindrical wall 1. A tension sensor is installed inside the electronic pressure sensor 2, and vertical moving slots with a length of 50mm and a width of 10mm are cut on both sides. The transparent cylindrical wall 1 and the electronic pressure sensor... The pressure sensor 2 is connected via a tension sensor. Two 10mm diameter circular protrusions are located on the upper side of the transparent cylindrical wall 1, within a vertical moving groove. Each protrusion has a pressure relief hole connecting the inside and outside, allowing for the balancing of atmospheric pressure inside and outside the transparent cylindrical wall 1 during use. The transparent cylindrical wall 1 can move up and down within the vertical moving groove of the electronic pressure sensor 2. The electronic pressure sensor 2 contains an integrated control circuit. The deformation of the tension sensor is converted into a digital signal by an integrated circuit board and input to the control circuit. The control device includes a control circuit, an electromagnet 6, a stainless steel spring 7, a dual-axis bracket 9, stainless steel ice-breaking teeth 4, and a tension sensor. The cylinder of the electronic pressure sensor 2 is made of fully transparent acrylic glass with a cross-sectional area of ​​50cm². 2 Using plexiglass instead of metal reduces weight, makes it easier to carry, is less prone to deformation and corrosion, and provides more intuitive observation and measurement results.

[0044] The working principle of this utility model:

[0045] The formula for calculating snow pressure is: In the formula, P is the snow pressure in g / cm³. 2 S is the cross-sectional area of ​​the inner cylinder of the electronic pressure gauge 2 (50cm²). 2 The inner diameter of the cylinder is 7.98 cm; M is the sample weight (g); this calculation formula has been integrated into the control circuit of the electronic pressure gauge. During measurement, the reading on the digital display of the electronic pressure gauge is the snow pressure of the current snow sample.

[0046] Step 1: Before sampling, turn on the main switch of the electronic pressure gauge and press the zeroing button to avoid the influence of the weight of the cylinder on the measurement results;

[0047] Step 2: Turn on the ice-breaking tooth switch. When the electromagnet is energized, it generates a magnetic field in the opposite direction to the magnet, which creates an attractive force that pulls the stainless steel plate upward, causing the ice-breaking tooth to pop out and automatically opening the cylinder opening.

[0048] Step 3: When taking a sample, insert the end of the electronic pressure gauge 2 with the ice-breaking teeth vertically downward into the snow until it reaches the ground. Then press the ice-breaking tooth switch again. The direction of the current in the electromagnet changes, generating a magnetic field in the same direction as the magnet. This generates a repulsive force that pushes the stainless steel plate downward, causing the ice-breaking teeth to retract and reset, thus closing the opening of the electronic pressure gauge 2.

[0049] Step 4: After removing the electronic pressure sensor 2 from the snow, place it horizontally, turn on the ice-breaking switch, open the cylinder opening, observe through the plexiglass, and then manually clean the soil, fallen leaves, and other debris mixed into the bottom of the cylinder.

[0050] Step 5: Press the ice-breaking switch again to close the opening of the electronic pressure gauge 2. Use the handle 3 to lift the electronic pressure gauge 2 vertically to the ground. The tension sensor in the control circuit deforms under force, changing its own resistance and outputting an analog signal. The analog signal is processed by the operational amplifier, A / D converter chip, and snow pressure calculation chip and then displayed on the digital display screen. Observe the display screen of the electronic pressure gauge. After the reading remains stable, take the reading. The reading on the display screen of the electronic pressure gauge 2 is the snow pressure (g / cm) of the snow sample measured this time. 2 The required snow pressure data can be obtained by taking the average of three samples.

[0051] For example, if the readings on the digital display of the electronic pressure gauge for three sets of snow samples are 6.0, 5.9, and 6.1 respectively, then the average of the three sets of data can be used to calculate the snow pressure at that sampling point as 6.0 g / cm³. 2 .

Claims

1. A field electronic snow pressure measuring device, characterized in that, It includes a transparent cylindrical wall (1), an electronic pressure sensor (2) is provided at the top of the transparent cylindrical wall (1), a handle (3) is provided at the top of the electronic pressure sensor (2), and stainless steel ice-breaking teeth (4) are provided at the bottom of the transparent cylindrical wall (1). There are eight stainless steel ice-breaking teeth (4). The tip of the stainless steel ice-breaking teeth (4) is at a 45° angle, and the other end is an arc surface with the same curvature as the inner diameter of the transparent cylinder wall (1). There are two bosses with central drill holes on the arc surface, and the bosses are connected to the transparent cylinder wall (1). The bottom of the transparent cylindrical wall (1) is provided with eight protrusions with holes drilled on both sides. Stainless steel shafts are installed in the holes. The stainless steel shafts pass through the protrusions on the stainless steel ice-breaking teeth (4), so that the stainless steel ice-breaking teeth (4) can be folded within the range of 0° to 90° at the bottom of the transparent cylindrical wall (1).

2. The field electronic snow pressure measuring device according to claim 1, characterized in that, The transparent cylindrical wall (1) has an annular groove (5) inside. The annular groove (5) consists of two parts with different inner diameters. The upper part of the annular groove (5) has an inner diameter of 1 mm and an annular electromagnet (6) is installed at the top of the groove. Eight magnets (8) that can move vertically inside the groove are set inside the upper groove. The bottom of the magnets (8) is welded with a curved stainless steel spring (7). The lower part of the annular groove has an inner diameter of 0.5 mm and is filled with raw materials, leaving only eight vertical grooves spaced at 45° intervals.

3. The field electronic snow pressure measuring device according to claim 2, characterized in that, One end of the stainless steel spring (7) is connected to the double-axis bracket (9) via a shaft, and the other end is welded with a magnet (8). The magnet (8) has an outer diameter of 1 mm and can move up and down in the upper part of the annular groove (5). The stainless steel spring (7) moves up and down in the lower part of the annular groove (5). One end of the double-axis bracket (9) is connected to the stainless steel spring (7) via a shaft, and the other end is connected to the protrusion of the ice-breaking tooth (4) via a shaft. The magnet (8) and the stainless steel spring (7) are welded together. When moving, the double-axis bracket (9) is displaced, pushing the ice-breaking tooth to rotate within a 90° range in both vertical and horizontal directions.

4. The field electronic snow pressure measuring device according to claim 3, characterized in that, The electronic pressure gauge (2) is equipped with a tension sensor inside. It has vertical moving slots with a length of 50 mm and a width of 10 mm on both sides. The transparent cylindrical wall (1) is connected to the electronic pressure gauge (2) through the tension sensor. The upper end of the transparent cylindrical wall (1) is provided with two circular bosses with a diameter of 10 mm. The bosses are set in the vertical moving slots. The bosses have pressure relief holes that pass through the inside and outside. The transparent cylindrical wall (1) can move up and down within the vertical moving slot of the electronic pressure gauge (2). The electronic pressure gauge (2) is equipped with an integrated control circuit. The deformation of the tension sensor in the control circuit is converted into a digital signal by the integrated circuit board and input to the control circuit.

5. The field electronic snow pressure measuring device according to claim 4, characterized in that, The annular electromagnet (6) is connected to the two ends of the double-pole double-throw switch in the control circuit through two thin copper wires, and the thin copper wires are embedded inside the transparent cylinder wall (1).

6. The field electronic snow pressure measuring device according to claim 4, characterized in that, In the control circuit, the single-pole single-throw button switch serves as the main switch of the circuit. One end is connected in series with the 5V power supply, and the other end is connected in parallel with two branches. One branch is an electromagnet circuit composed of a double-pole double-throw button switch as an electromagnet switch and a ring electromagnet (6). The other branch is an electronic pressure measuring circuit composed of a tension sensor, an integrated circuit board, and a digital display screen.

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