Rainwater pH value detection device for environment detection

Abstract

The utility model discloses a rainwater acidity and alkalinity detection device for environment detection, which relates to the technical field of rainwater acidity and alkalinity detection equipment, and comprises a collecting barrel, a flow guide cover movably connected to the top of the collecting barrel, a mounting ring fixedly connected in the collecting barrel, a clamping seat movably connected to the top of the mounting ring, and positioning components symmetrically mounted at the bottom of the clamping seat. Fixing columns are symmetrically and fixedly connected to the top of the clamping seat, fixing assemblies are mounted in the fixing columns, a mounting groove is formed in the inner wall of the clamping seat, a filter paper funnel is movably connected into the mounting groove, and a PH sensor is mounted on the inner wall of the collecting cylinder. By the adoption of the structure, solid impurities in rainwater can be effectively filtered out, the impurities are prevented from being attached to the surface of the pH sensor and disturbing accurate sensing of the pH sensor on the concentration of hydrogen ions in the rainwater, the filter paper funnel can be disassembled and assembled without complex steps and tools, the time needed for replacing the filter paper is greatly shortened, and the cost is reduced. And the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of rainwater pH testing equipment, and specifically relates to a rainwater pH testing device for environmental testing. Background Technology

[0002] This rainwater pH testing device for environmental monitoring consists of a rainwater collector, a filter, a pH sensor, a signal conversion and display module, and a power supply module. Rainwater is collected by the collector, impurities are removed by the filter, the pH sensor converts the hydrogen ion concentration in the rainwater into an electrical signal, which is then processed by the signal conversion module and displayed as the pH value on the display module. The power supply module provides electricity. The entire process is automated and highly accurate, requiring no stirring or addition of chemicals. It can accurately and conveniently detect the pH of rainwater, providing reliable data for environmental monitoring.

[0003] Announcement No. "CN217007267U" discloses a rainwater pH testing device, comprising a collection bucket, a wind vane, and a testing bucket. The wind vane is vertically mounted at the bottom of the collection bucket and can rotate about the center line of the collection bucket under wind force. A rain shield is provided at the top of the collection bucket, and the rain shield is fixedly connected to the wind vane via a connecting rod. The testing bucket is fixedly mounted on one side of the collection bucket, and a water outlet pipe is also provided on one side of the collection bucket. The outlet end of the water outlet pipe is fixedly connected to the top cover of the testing bucket. A pH measuring device is installed inside the testing bucket, and a pH display device is provided on one side of the testing bucket. This device efficiently detects the pH of rainwater.

[0004] While the aforementioned invention can efficiently detect the pH of rainwater, rainwater often contains impurities such as dust, soil particles, and leaf debris. These impurities adhere to the surface of the pH sensor, hindering sufficient contact between the sensor and the rainwater. This prevents the sensor from accurately detecting the concentration of hydrogen ions in the rainwater, leading to inaccurate test results. Furthermore, some impurities may be acidic or alkaline themselves, directly participating in chemical reactions and interfering with the test results, failing to accurately reflect the pH of the rainwater. Larger impurity particles can also enter the internal channels or gaps of the detection device, causing blockages and affecting the normal flow of rainwater and the detection process. Long-term accumulation can also damage precision components such as the pH sensor, shortening the lifespan of the detection device and increasing maintenance and replacement costs. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a rainwater pH detection device for environmental monitoring, so as to solve the problem that impurities in rainwater will adhere to the surface of the pH sensor, hindering the sensor from making full contact with the rainwater, resulting in the sensor being unable to accurately detect the concentration of hydrogen ions in the rainwater, thus causing the detection results to be biased.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] An environmental monitoring device for rainwater pH detection includes a collection cylinder, a flow guide hood movably connected to the top of the collection cylinder, an installation ring fixedly connected inside the collection cylinder, a clamping seat movably connected to the top of the installation ring, positioning components symmetrically installed at the bottom of the clamping seat, fixing columns symmetrically fixedly connected to the top of the clamping seat, fixing components installed inside the fixing columns, an installation groove formed on the inner wall of the clamping seat, a filter paper funnel movably connected inside the installation groove, and a pH sensor installed on the inner wall of the collection cylinder. This device effectively filters solid impurities in the rainwater, preventing these impurities from adhering to the surface of the pH sensor and interfering with the accurate sensing of hydrogen ion concentration in the rainwater. This allows the detection results to more accurately reflect the pH of the rainwater, while also reducing localized changes in rainwater properties during the detection process due to uneven impurity distribution.

[0008] The fixing assembly includes a cavity, a movable plate, a first return spring, a movable column, a handle, a connecting column, an annular pressure plate, and inserts. The fixed column has a cavity inside, with the first return spring fixedly connected to its top. The other end of the first return spring is fixedly connected to the movable plate, which is slidably connected to the cavity. The top of the movable plate is fixedly connected to the movable column, and the other end of the movable column extends beyond the top of the fixed column and is fixedly connected to the handle. The first return spring is sleeved on the outside of the movable column. The bottom of the movable plate is fixedly connected to the connecting column, and the other end of the connecting column extends into the mounting groove and is fixedly connected to the annular pressure plate. Inserts are symmetrically fixedly connected to the bottom of the annular pressure plate. The top of the filter paper funnel has symmetrically symmetrically shaped through holes, and the bottom of the mounting groove has symmetrically shaped insertion holes. The inserts penetrate the through holes and are inserted into the insertion holes. This allows for the assembly and disassembly of the filter paper funnel without complicated steps or tools, significantly reducing the time required to replace the filter paper, improving work efficiency, and ensuring the filter paper funnel is stably fixed in the mounting groove, preventing shaking or displacement due to liquid impact or other external forces during filtration, thus ensuring smooth filtration operations.

[0009] As a preferred technical solution, the inner wall of the collection cylinder is symmetrically provided with fixing grooves, and the outer wall of the guide hood is symmetrically fixedly connected with fixing blocks. The fixing blocks and fixing grooves are inserted into each other, and the guide hood is inserted into the inside of the collection cylinder. This can effectively guide rainwater to the collection cylinder, gather rainwater from different directions, and allow the rainwater to smoothly enter the collection cylinder through a specific guide path, thereby improving the efficiency and accuracy of rainwater collection.

[0010] As a preferred technical solution, a fixing ring is fixedly connected to the outer wall of the collection tube, and support legs are symmetrically fixedly connected to the bottom of the fixing ring. Anti-slip pads are glued to the bottom of the support legs, which can provide a stable support structure for the collection tube, effectively preventing the collection tube from tipping over due to wind or accidental collision, ensuring that rainwater samples are not spilled, thereby ensuring the accuracy of the test results.

[0011] As a preferred technical solution, the positioning component includes a built-in hole, a second return spring, and a positioning post. Positioning blocks are symmetrically fixedly connected to the bottom of the clamping base. A built-in hole is opened on one side of the positioning block, and a second return spring is fixedly connected to the bottom of the built-in hole. A positioning post is fixedly connected to the other end of the second return spring. The positioning post is slidably connected to the inside of the built-in hole. The other end of the positioning post extends out of the side of the positioning block and is arc-shaped. Positioning grooves are symmetrically opened on the top of the mounting ring. The positioning block and the positioning groove are inserted into each other. A positioning hole is opened on one side of the positioning groove, and the positioning post and the positioning hole are snap-fitted together. This allows the testing personnel to quickly install the filter paper funnel into the collection cylinder, saving installation time and improving the overall efficiency of rainwater pH testing, enabling the testing personnel to obtain test results more promptly.

[0012] As a preferred technical solution, an overflow pipe is fixedly connected to the outer wall of the collection cylinder. The overflow pipe is connected to the inside of the collection cylinder. The height of the overflow pipe is lower than that of the pH sensor, which allows excess rainwater to flow out through the overflow pipe, thereby preventing rainwater from overflowing the pH sensor. This effectively prevents the sensor from being damaged by water immersion, extends the sensor's service life, and ensures that it can accurately detect the acidity and alkalinity of rainwater.

[0013] In summary, this utility model has the following main advantages:

[0014] First, in this utility model, pulling the handle upward causes the movable column to move the moving plate, connecting column, and annular pressure plate, while the insertion column and insertion hole are connected. The top of the filter paper funnel is inserted into the installation groove. Releasing the handle resets the first return spring, and the moving plate rebounds, causing the connecting column, annular pressure plate, and insertion column to return to their positions. The insertion column passes through the through hole on the filter paper funnel and is inserted into the insertion hole. The filter paper funnel can be disassembled and assembled without complicated steps and tools, which greatly shortens the time required to replace the filter paper, improves work efficiency, and can stably fix the filter paper funnel in the installation groove, preventing it from shaking or shifting due to liquid impact or other external forces during filtration, thus ensuring the smooth progress of the filtration operation.

[0015] Secondly, in this utility model, the guide hood is inserted into the top of the collecting cylinder, and the fixing block is inserted into the fixing groove. Rainwater falls through the guide hood into the filter paper funnel inside the collecting cylinder, where it is filtered. The filtered rainwater falls into the collecting cylinder, and the pH sensor is activated to respond to the hydrogen ion concentration in the rainwater, performing acidity and alkalinity detection and converting the result into an electrical signal. This effectively filters solid impurities in the rainwater, preventing these impurities from adhering to the surface of the pH sensor and interfering with the accurate perception of the hydrogen ion concentration in the rainwater. This allows the detection result to more accurately reflect the acidity and alkalinity of the rainwater, while reducing local changes in the properties of the rainwater during the detection process caused by uneven distribution of impurities. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional three-dimensional structural schematic diagram of the present invention;

[0018] Figure 3 This is the utility model Figure 2 Enlarged view of part A;

[0019] Figure 4 This is the utility model Figure 2 Enlarged view of part B.

[0020] Reference numerals: 1. Collection cylinder; 2. Flow guide; 3. Fixing ring; 4. Support leg; 5. Anti-slip pad; 6. Fixing block; 7. Fixing groove; 8. Mounting ring; 9. Clamping seat; 10. Mounting groove; 11. Filter paper funnel; 12. pH sensor; 13. Overflow pipe; 14. Fixing column; 15. Fixing assembly; 151. Cavity; 152. Moving plate; 153. First return spring; 154. Movable column; 155. Pull handle; 156. Connecting column; 157. Annular pressure plate; 158. Insertion column; 17. Through hole; 18. Insertion hole; 19. Positioning block; 20. Positioning groove; 21. Positioning assembly; 211. Internal hole; 212. Second return spring; 213. Positioning column; 22. Positioning hole. Detailed Implementation

[0021] Example

[0022] refer to Figures 1 to 4 This embodiment of an environmental monitoring rainwater pH detection device includes a collection cylinder 1, a flow guide 2 movably connected to the top of the collection cylinder 1, an installation ring 8 fixedly connected inside the collection cylinder 1, a clamping seat 9 movably connected to the top of the installation ring 8, positioning components 21 symmetrically installed at the bottom of the clamping seat 9, fixing columns 14 symmetrically fixedly connected to the top of the clamping seat 9, fixing components 15 installed inside the fixing columns 14, an installation groove 10 opened on the inner wall of the clamping seat 9, a filter paper funnel 11 movably connected inside the installation groove 10, and a pH sensor 12 installed on the inner wall of the collection cylinder 1. When the flow guide 2 is inserted into the top of the collection cylinder 1, rainwater falls through the flow guide 2 into the filter paper funnel 11 inside the collection cylinder 1, is filtered through the filter paper funnel 11, and the filtered rainwater falls into the collection cylinder 1. The pH sensor 12 is activated to respond to the hydrogen ion concentration in the rainwater, performs pH detection, and converts the result into an electrical signal.

[0023] The fixing assembly 15 includes a cavity 151, a movable plate 152, a first return spring 153, a movable column 154, a handle 155, a connecting column 156, an annular pressure plate 157, and an insert 158. The fixed column 14 has a cavity 151 inside. The first return spring 153 is fixedly connected to the top of the cavity 151, and the other end of the first return spring 153 is fixedly connected to the movable plate 152. The movable plate 152 is slidably connected to the cavity 151. The movable column 154 is fixedly connected to the top of the movable plate 152. The other end of the movable column 154 extends beyond the top of the fixed column 14 and is fixedly connected to the handle 155. The first return spring 153 is sleeved on the outside of the movable column 154. The connecting column 156 is fixedly connected to the bottom of the movable plate 152, and the other end of the connecting column 156 extends towards the mounting groove 10. An annular pressure plate 157 is fixedly connected inside. A pin 158 is symmetrically fixedly connected to the bottom of the annular pressure plate 157. A through hole 17 is symmetrically opened at the top of the filter paper funnel 11. A insertion hole 18 is symmetrically opened at the bottom of the mounting groove 10. The pin 158 passes through the through hole 17 and is inserted into the insertion hole 18. Pulling the handle 155 upwards causes the movable column 154 to move the moving plate 152, connecting column 156, and annular pressure plate 157. Simultaneously, the pin 158 is no longer inserted into the insertion hole 18, and the top of the filter paper funnel 11 is inserted into the mounting groove 10. Releasing the handle 155 resets the first return spring 153, and the moving plate 152 rebounds, causing the connecting column 156, annular pressure plate 157, and pin 158 to return to their original positions. The pin 158 passes through the through hole 17 on the filter paper funnel 11 and is inserted into the insertion hole 18.

[0024] refer to Figures 1 to 2 The inner wall of the collecting cylinder 1 is symmetrically provided with fixing grooves 7, and the outer wall of the flow guide shroud 2 is symmetrically fixedly connected with fixing blocks 6. The fixing blocks 6 and the fixing grooves 7 are inserted into each other. The flow guide shroud 2 is inserted into the inside of the collecting cylinder 1. The flow guide shroud 2 is inserted into the top of the collecting cylinder 1 so that the fixing blocks 6 are inserted into the fixing grooves 7.

[0025] refer to Figure 1 A fixing ring 3 is fixedly connected to the outer wall of the collection tube 1. A support leg 4 is symmetrically fixedly connected to the bottom of the fixing ring 3. An anti-slip pad 5 is glued to the bottom of the support leg 4. The fixing ring 3 and the support leg 4 provide a stable support structure for the collection tube 1, which can effectively prevent the collection tube 1 from tipping over due to wind or accidental collision, and ensure that the rainwater sample is not spilled, thereby ensuring the accuracy of the test results.

[0026] refer to Figure 4The positioning component 21 includes an internal hole 211, a second return spring 212, and a positioning post 213. A positioning block 19 is symmetrically fixedly connected to the bottom of the clamping base 9. An internal hole 211 is opened on one side of the positioning block 19, and a second return spring 212 is fixedly connected to the bottom of the internal hole 211. The other end of the second return spring 212 is fixedly connected to the positioning post 213. The positioning post 213 is slidably connected to the internal hole 211. The other end of the positioning post 213 extends out of the side of the positioning block 19 and is arc-shaped. A positioning groove 20 is symmetrically opened on the top of the mounting ring 8. The positioning block 19 and the positioning groove 20 are inserted into each other. The interior of the positioning groove 20... A positioning hole 22 is provided on one side, and the positioning post 213 is engaged with the positioning hole 22. The clamping seat 9 is placed on the mounting ring 8 inside the collecting cylinder 1, so that the positioning block 19 is inserted into the positioning groove 20. During the insertion process, the squeezing force applies pressure to the arc-shaped end of the positioning post 213, so that the positioning post 213 presses against the second return spring 212. The second return spring 212 is compressed, and at the same time, the positioning post 213 retracts into the inner hole 211. When the positioning post 213 moves to the positioning hole 22, the second return spring 212 returns to its original position, and the positioning post 213 pops out and engages with the positioning hole 22, thus completing the installation of the clamping seat 9.

[0027] refer to Figure 2 An overflow pipe 13 is fixedly connected to the outer wall of the collection cylinder 1. The overflow pipe 13 is connected to the inside of the collection cylinder 1. The height of the overflow pipe 13 is lower than that of the pH sensor 12. When the rainwater in the collection cylinder 1 reaches the height of the overflow pipe 13, the excess rainwater will flow out through the overflow pipe 13, thereby preventing the rainwater from overflowing the pH sensor. This effectively prevents the sensor from being damaged by water immersion, extends the service life of the sensor, and ensures that it can accurately detect the acidity and alkalinity of rainwater.

[0028] Operating principle and advantages: First, pull the handle 155 upwards, causing the movable column 154 to move the moving plate 152, connecting column 156, and annular pressure plate 157. Simultaneously, the insertion column 158 terminates its insertion into the insertion hole 18, inserting the top of the filter paper funnel 11 into the mounting groove 10. Release the handle 155, and the first return spring 153 returns to its original position. The moving plate 152 rebounds, causing the connecting column 156, annular pressure plate 157, and insertion column 158 to return to their original positions. The insertion column 158 penetrates the through hole 17 on the filter paper funnel 11 and inserts into the insertion hole 18. Then, place the clamping seat 9 onto the mounting ring 8 inside the collecting cylinder 1, causing the positioning block 19 to insert into the positioning groove 20. During insertion, the squeezing force applies pressure to the arc-shaped end of the positioning column 213. The pressure causes the positioning post 213 to press against the second return spring 212, compressing the second return spring 212. At the same time, the positioning post 213 retracts into the internal hole 211. When the positioning post 213 moves to the positioning hole 22, the second return spring 212 resets, and the positioning post 213 pops out and engages with the positioning hole 22, completing the installation of the clamping seat 9. The guide cover 2 is inserted into the top of the collecting cylinder 1, and the fixing block 6 is inserted into the fixing groove 7. Rainwater falls through the guide cover 2 into the filter paper funnel 11 inside the collecting cylinder 1. It is filtered through the filter paper funnel 11, and the filtered rainwater falls into the collecting cylinder 1. The pH sensor 12 is activated to respond to the hydrogen ion concentration in the rainwater, detects the acidity and alkalinity, and converts the result into an electrical signal.

[0029] This invention can effectively filter solid impurities in rainwater, preventing these impurities from adhering to the surface of the pH sensor and interfering with the accurate sensing of hydrogen ion concentration in rainwater by the pH sensor 12. Moreover, the filter paper funnel 11 can be disassembled and assembled without complicated steps and tools, which greatly shortens the time required to replace the filter paper and improves work efficiency.

Claims

1. An environmental monitoring device for detecting the acidity and alkalinity of rainwater, comprising a collection cylinder (1), characterized in that: The top of the collection cylinder (1) is movably connected to a flow guide (2), the inside of the collection cylinder (1) is fixedly connected to an installation ring (8), the top of the installation ring (8) is movably connected to a clamping seat (9), the bottom of the clamping seat (9) is symmetrically equipped with positioning components (21), the top of the clamping seat (9) is symmetrically fixedly connected to a fixing column (14), the inside of the fixing column (14) is equipped with a fixing component (15), the inner wall of the clamping seat (9) is provided with an installation groove (10), the inside of the installation groove (10) is movably connected to a filter paper funnel (11), and the inner wall of the collection cylinder (1) is equipped with a pH sensor (12). The fixing component (15) includes a cavity (151), a movable plate (152), a first return spring (153), a movable column (154), a pull handle (155), a connecting column (156), an annular pressure plate (157), and a plug (158). The fixing column (14) has a cavity (151) inside. The first return spring (153) is fixedly connected to the top of the cavity (151). The movable plate (152) is fixedly connected to the other end of the first return spring (153). The movable plate (152) slides within the cavity (151). The movable plate (152) is fixedly connected to a movable column (154) at its top. The other end of the movable column (154) extends out of the top of the fixed column (14) and is fixedly connected to a handle (155). The first reset spring (153) is sleeved on the outside of the movable column (154). The bottom of the movable plate (152) is fixedly connected to a connecting column (156). The other end of the connecting column (156) extends into the mounting groove (10) and is fixedly connected to an annular pressure plate (157). The bottom of the annular pressure plate (157) is symmetrically fixedly connected to inserts (158).

2. The rainwater pH detection device for environmental monitoring according to claim 1, characterized in that: The filter paper funnel (11) has symmetrical through holes (17) at the top, and the mounting groove (10) has symmetrical insertion holes (18) at the bottom. The insertion post (158) passes through the through hole (17) and is inserted into the insertion hole (18).

3. The rainwater pH detection device for environmental monitoring according to claim 1, characterized in that: The inner wall of the collecting cylinder (1) is symmetrically provided with fixing grooves (7), and the outer wall of the flow guide (2) is symmetrically fixedly connected with fixing blocks (6). The fixing blocks (6) and the fixing grooves (7) are inserted into each other, and the flow guide (2) is inserted into the inside of the collecting cylinder (1).

4. The rainwater pH detection device for environmental monitoring according to claim 1, characterized in that: A fixing ring (3) is fixedly connected to the outer wall of the collecting cylinder (1), and a support leg (4) is symmetrically fixedly connected to the bottom of the fixing ring (3). An anti-slip pad (5) is glued to the bottom of the support leg (4).

5. The rainwater pH detection device for environmental monitoring according to claim 1, characterized in that: The positioning component (21) includes an internal hole (211), a second return spring (212), and a positioning post (213). The bottom of the clamping seat (9) is symmetrically fixedly connected to a positioning block (19). An internal hole (211) is opened on one side of the positioning block (19). A second return spring (212) is fixedly connected to the bottom of the internal hole (211). The other end of the second return spring (212) is fixedly connected to a positioning post (213). The positioning post (213) is slidably connected to the inside of the internal hole (211). The other end of the positioning post (213) extends out of the side end of the positioning block (19) and is arc-shaped.

6. The rainwater pH detection device for environmental monitoring according to claim 5, characterized in that: The mounting ring (8) has symmetrically provided positioning grooves (20) on its top. The positioning block (19) is inserted into the positioning groove (20). The positioning groove (20) has a positioning hole (22) on one side inside. The positioning post (213) is snapped into the positioning hole (22).

7. The rainwater pH detection device for environmental monitoring according to claim 1, characterized in that: An overflow pipe (13) is fixedly connected to the outer wall of the collection cylinder (1). The overflow pipe (13) is connected to the inside of the collection cylinder (1). The height of the overflow pipe (13) is lower than that of the pH sensor (12).

Images