Water quality detection pen

Abstract

The utility model discloses a water quality detection pen which comprises a pen body, a circuit board is arranged in the pen body, two TDS electrodes are arranged at the lower end of the pen body, the upper ends of the TDS electrodes extend into the pen body and are electrically connected with the circuit board, and an ultraviolet emitter and an ultraviolet receiver which are oppositely arranged are arranged at the lower end of the pen body. The upper end of the ultraviolet emitter and the upper end of the ultraviolet receiver respectively extend into the pen body and are electrically connected with the circuit board, and the side surface of the pen body is provided with a display screen which is electrically connected with the circuit board and is used for displaying detected water quality data, so that the detection pen detects the TDS value, the TOC value and the COD value of a water body, and the accuracy of a water quality detection result is improved.

Description

[Technical Field]

[0001] This utility model relates to a water quality testing pen. [Background Technology]

[0002] Existing water quality testing pens can only detect the total dissolved solids (TDS) in water. The testing principle is to determine the water quality by detecting the TDS value. However, accurate water quality assessment also requires the detection of parameters such as total organic carbon (TOC), chemical oxygen demand (COD), and temperature. Therefore, existing water quality testing pens have the problem of inaccurate water quality test results. [Utility Model Content]

[0003] This invention overcomes the shortcomings of the prior art and provides a water quality testing pen.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A water quality testing pen, characterized in that: it includes a pen body, a circuit board is provided inside the pen body, two TDS electrodes are provided at the lower end of the pen body, the upper ends of the TDS electrodes extend into the pen body and are electrically connected to the circuit board, an ultraviolet emitter and an ultraviolet receiver are provided at the lower end of the pen body respectively, the upper ends of the ultraviolet emitter and the upper ends of the ultraviolet receiver extend into the pen body and are electrically connected to the circuit board, and a display screen is provided on the side of the pen body, which is electrically connected to the circuit board for displaying water quality test data.

[0006] The water quality testing pen described above is characterized in that: a temperature detection probe is provided at the lower end of the pen body, and the upper end of the temperature detection probe extends into the pen body and is electrically connected to the circuit board.

[0007] The water quality testing pen described above is characterized in that: the lower end of the pen body is provided with a lower opening, the lower opening is connected to a protective cover, the protective cover is provided with a protective cover through hole for water to enter, and two TDS electrode detection ends, an ultraviolet emitter detection end, an ultraviolet receiver detection end and a temperature detection probe are respectively arranged inside the protective cover.

[0008] The water quality testing pen described above is characterized in that: an ultraviolet emitter and an ultraviolet receiver are respectively fitted with mounting bases, and the inner cavity of the protective cover is provided with mounting base positioning grooves on both sides for positioning and inserting the mounting bases. The opposite sides of the two mounting bases are respectively provided with light-transmitting parts arranged opposite to each other, and the detection end of the ultraviolet emitter and the detection end of the ultraviolet receiver are respectively arranged on the light-transmitting parts of the two mounting bases.

[0009] The water quality testing pen described above is characterized in that the two mounting bases are of different sizes.

[0010] The water quality testing pen described above is characterized in that: a positioning notch is provided at the lower end of the circuit board, and a positioning groove for the circuit board to be positioned and inserted into the positioning notch at both ends is provided on the protective cover; a pen cap that is detachable and can be closed is covered on the protective cover.

[0011] The water quality testing pen described above is characterized in that: a button connected to a circuit board is provided on the side of the pen body for inputting control commands.

[0012] The water quality testing pen described above is characterized in that: a battery holder with an open top is provided on the circuit board, a pen body through hole communicating with the battery holder for battery insertion is provided on the upper surface of the pen body, and a battery holder conductive connector is provided at the upper end of the pen body that can rotatably close the pen body through hole and is electrically connected to one end of the battery so that the battery supplies power to the circuit board.

[0013] The water quality testing pen described above is characterized in that: the upper end face of the pen body is provided with a data interface that is connected to a circuit board and used to supply power to the circuit board and read data from the circuit board via a data cable.

[0014] The water quality testing pen described above is characterized in that: a pen body groove is provided on the upper end face of the pen body, a pen body through hole and a data interface are both provided on the bottom surface of the pen body groove, a battery holder conductive connector is provided in the pen body groove, and a pen cover for sealing the pen body groove and being removable is connected to the pen body groove, and a sealing ring is provided on the outer side of the pen cover connection end.

[0015] The beneficial effects of this utility model are:

[0016] The pen body of this utility model is equipped with a circuit board, and two TDS electrodes electrically connected to the circuit board are provided at the lower end of the pen body. A temperature detection probe is also provided, as well as an ultraviolet emitter and an ultraviolet receiver arranged opposite to each other for detecting ultraviolet transmittance. After receiving the detection data, the circuit board calculates the TDS value, TOC value, COD value and temperature value of the water body, thereby improving the accuracy of water quality detection results. [Image Description]

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second schematic diagram of the structure of this utility model;

[0019] Figure 3 This is one of the exploded views of this utility model;

[0020] Figure 4 This is a schematic diagram of the circuit board of this utility model;

[0021] Figure 5 This is the second exploded view of the present invention;

[0022] Figure 6 This is the third exploded view of the present invention. [Detailed Implementation]

[0023] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "preferred" or "second-best" may explicitly or implicitly include at least one of those features.

[0025] like Figure 1-6 As shown, a water quality testing pen includes a pen body 1, a circuit board 2 inside the pen body 1, two TDS electrodes 3 at the lower end of the pen body 1, the upper ends of the TDS electrodes 3 extending into the pen body 1 and electrically connected to the circuit board 2, an ultraviolet emitter 4 and an ultraviolet receiver 5 arranged opposite each other at the lower end of the pen body 1, the upper ends of the ultraviolet emitter 4 and the upper ends of the ultraviolet receiver 5 respectively extending into the pen body 1 and electrically connected to the circuit board 2, and a display screen 6 on the side of the pen body 1, electrically connected to the circuit board 2, for displaying water quality test data. A temperature detection probe 7 is also located at the lower end of the pen body 1, the upper end of the temperature detection probe 7 extending into the pen body 1 and electrically connected to the circuit board 2.

[0026] During testing, the lower end of the pen body 1 is placed in the water. Two TDS electrodes 3 measure the EC conductivity of the water, and the temperature probe 7 measures the water temperature. Simultaneously, the ultraviolet emitter 4 emits ultraviolet light, and the ultraviolet receiver 5 receives the ultraviolet light passing through the water to measure the UV transmittance. The test data is sent to the circuit board 2, which calculates the TDS, TOC, and COD values ​​of the water and displays these values ​​on the display screen 6. In this case, the circuit board 2 can also connect to smart devices such as mobile phones to send test data. The smart devices can then upload this test data, along with location information, to a backend server for storage and data analysis and comparison.

[0027] In this case, the temperature detection principle is that the temperature detection probe 7 generates different analog voltage outputs based on the temperature to obtain the corresponding digital voltage signal. The SOC central processing unit on the circuit board 2 reads the digital signal and obtains the temperature data by looking up a table.

[0028] In this case, the TDS detection principle is that after two TDS electrodes 3 are placed in water, different currents are generated according to the distribution of ions in the water to obtain corresponding voltage signals. After analog-to-digital conversion, the EC conductivity of the water body is obtained, and the TDS result is obtained after temperature compensation calculation.

[0029] In this case, the TOC and COD values ​​are detected by the SOC central processor driving the ultraviolet emitter 4 to emit ultraviolet light. The ultraviolet receiver 5 receives the ultraviolet light and obtains a voltage signal corresponding to the light intensity. After analog-to-digital conversion, the UV transmittance of the water is obtained, and the TOC and COD results are calculated from the UV transmittance.

[0030] like Figure 2-5 As shown, the pen body 1 has a lower opening at its bottom, which is connected to a protective cover 8. The protective cover 8 has a through hole 801 for water to enter. The detection ends of the two TDS electrodes 3, the detection end of the ultraviolet emitter 4, the detection end of the ultraviolet receiver 5, and the temperature detection probe 7 are respectively installed inside the protective cover 8. The protective cover 8 protects each detection end and prevents damage to the detection ends. In this case, the ultraviolet emitter 4 and ultraviolet receiver 5, the two TDS electrodes 3, and the temperature detection probe 7 can also be staggered and installed inside the protective cover 8. The extension length of the emitting end of the ultraviolet emitter 4 and the receiving end of the ultraviolet receiver 5 is longer than the extension length of the TDS electrode 3 and the extension length of the temperature detection probe 7, respectively. The extension length of the TDS electrode 3 is longer than the extension length of the temperature detection probe 7, which can avoid mutual interference and improve detection accuracy.

[0031] like Figure 2-6 As shown, the ultraviolet emitter 4 and the ultraviolet receiver 5 are respectively fitted with mounting bases 9, which serve to waterproof and protect the ultraviolet emitter 4 and the ultraviolet receiver 5. The inner cavity of the protective cover 8 is provided with mounting base positioning grooves 802 on both sides for positioning and inserting the mounting bases 9. This ensures that after the mounting bases 9 are positioned and inserted, the emitting end of the ultraviolet emitter 4 and the detection end of the ultraviolet receiver 5 are positioned opposite each other, preventing displacement and failure to detect ultraviolet light transmittance. The opposite sides of the mounting bases 9 are respectively provided with light-transmitting parts 901. The detection ends of the ultraviolet emitter 4 and the ultraviolet receiver 5 are respectively set on the light-transmitting parts 901 of the mounting bases 9, ensuring that the ultraviolet light emitted by the ultraviolet emitter 4 passes through the water and is sent to the ultraviolet receiver 5. The two mounting bases 9 are different in size, which makes it easy to distinguish the ultraviolet emitter 4 and the ultraviolet receiver 5, and facilitates rapid circuit connection and production assembly.

[0032] like Figure 2 and Figure 6As shown, the lower end of the circuit board 2 is provided with a positioning notch 201, and the protective cover 8 is provided with a circuit board positioning groove 803 for positioning and inserting the positioning notch 201 at both ends. In conjunction with the pen body 1, the circuit board 2 can be quickly positioned and installed in the pen body 1. The protective cover 8 is covered with a pen cap 10 that is detachable and can close the protective cover 8, which protects the protective cover 8 and prevents foreign objects from entering the protective cover 8 and damaging the detection end.

[0033] like Figure 1-3 As shown, the pen body 1 has a button 11 on its side that is connected to the circuit board 2 for inputting control commands. The power on / off control command can be input to the circuit board 2 through the button 11, and the page turning control command can also be input to view different test data.

[0034] like Figure 5-6 As shown, the circuit board 2 is provided with a battery holder 12 with an opening at the top. The upper surface of the pen body 1 is provided with a pen body through hole 101 that communicates with the battery holder 12 for battery insertion. The upper end of the pen body 1 is provided with a battery holder conductive connector 13 that can rotatably close the pen body through hole 101 and is electrically connected to one end of the battery so that the battery supplies power to the circuit board 2. The battery can be inserted into the battery holder 12 through the pen body through hole 101, and after the battery holder conductive connector 13 is closed, the battery supplies power to the circuit board 2.

[0035] like Figure 5-6 As shown, the upper surface of the pen body 1 is provided with a data interface 14 that is connected to the circuit board 2 and used to supply power to the circuit board 2 and read data from the circuit board 2 via a data cable. The circuit board 2 can be supplied with power directly by plugging the data interface 14 through the data cable, and the detection data can also be read directly.

[0036] like Figure 5-6 As shown, the upper surface of the pen body 1 is provided with a pen body groove 102, the pen body through hole 101 and the data interface 14 are both provided on the bottom surface of the pen body groove 102, the battery holder conductive connector 13 is provided in the pen body groove 102, and the pen body groove 102 is connected to a removable pen cap 15 for sealing the pen body groove 102. A sealing ring 16 is provided on the outer side of the pen cap 15 connection end to improve the sealing of the upper end of the pen body and prevent water from entering and causing damage.

[0037] This water quality testing pen measures appropriate amounts of minerals in water and performs a comprehensive analysis combining total organic carbon (TOC) and chemical oxygen demand (COD). Using this pen, users can make a preliminary judgment on water quality and whether it meets the standards for good mineral water. Furthermore, the pen has a data upload function, enabling it to upload water quality data to the cloud and, combined with big data analytics, provide users with more accurate and comprehensive water quality monitoring reports. This innovative tool offers a convenient and efficient means of water quality monitoring and has broad application prospects.

[0038] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A water quality testing pen, characterized in that: The device includes a pen body (1), a circuit board (2) inside the pen body (1), two TDS electrodes (3) at the lower end of the pen body (1), the upper ends of the TDS electrodes (3) extending into the pen body (1) and electrically connected to the circuit board (2), an ultraviolet emitter (4) and an ultraviolet receiver (5) arranged opposite to each other at the lower end of the pen body (1), the upper ends of the ultraviolet emitter (4) and the upper ends of the ultraviolet receiver (5) extending into the pen body (1) and electrically connected to the circuit board (2), and a display screen (6) on the side of the pen body (1) electrically connected to the circuit board (2) for displaying water quality data.

2. The water quality testing pen according to claim 1, characterized in that: A temperature detection probe (7) is provided at the lower end of the pen body (1), and the upper end of the temperature detection probe (7) extends into the pen body (1) and is electrically connected to the circuit board (2).

3. A water quality testing pen according to claim 2, characterized in that: The pen body (1) has a lower opening at the bottom, and a protective cover (8) is connected to the lower opening. The protective cover (8) has a protective cover through hole (801) for water to enter. The detection ends of two TDS electrodes (3), the detection end of the ultraviolet emitter (4), the detection end of the ultraviolet receiver (5), and the temperature detection probe (7) are respectively set inside the protective cover (8).

4. A water quality testing pen according to claim 3, characterized in that: The ultraviolet emitter (4) and the ultraviolet receiver (5) are respectively fitted with mounting bases (9). The inner cavity of the protective cover (8) is provided with mounting base positioning grooves (802) on both sides for positioning and inserting the mounting bases (9). The opposite sides of the mounting bases (9) on both sides are respectively provided with light-transmitting parts (901). The detection end of the ultraviolet emitter (4) and the detection end of the ultraviolet receiver (5) are respectively set on the light-transmitting parts (901) of the mounting bases (9) on both sides.

5. A water quality testing pen according to claim 4, characterized in that: The two mounting bases (9) are different in size.

6. A water quality testing pen according to claim 3, characterized in that: The circuit board (2) has a positioning notch (201) at the lower end, and the protective cover (8) has a circuit board positioning groove (803) for positioning the positioning notch (201) at both ends respectively; the protective cover (8) is covered with a pen cap (10) that is detachable and can be closed.

7. A water quality testing pen according to claim 1, characterized in that: The pen body (1) has a button (11) on its side that is connected to the circuit board (2) for inputting control commands.

8. A water quality testing pen according to claim 1, characterized in that: The circuit board (2) is provided with a battery holder (12) with an opening at the top. The upper surface of the pen body (1) is provided with a pen body through hole (101) that communicates with the battery holder (12) for battery insertion. The upper end of the pen body (1) is provided with a battery holder conductive connector (13) that can rotatably close the pen body through hole (101) and is electrically connected to one end of the battery so that the battery supplies power to the circuit board (2).

9. A water quality testing pen according to claim 8, characterized in that: The upper surface of the pen body (1) is provided with a data interface (14) that is connected to the circuit board (2) and used to supply power to the circuit board (2) and read data from the circuit board (2) via a data cable.

10. A water quality testing pen according to claim 9, characterized in that: The upper end face of the pen body (1) is provided with a pen body groove (102), the pen body through hole (101) and the data interface (14) are both provided on the bottom surface of the pen body groove (102), the battery holder conductive connector (13) is provided in the pen body groove (102), the pen body groove (102) is connected to a pen cap (15) which is detachable and used to close the pen body groove (102), and a sealing ring (16) is provided on the outside of the connecting end of the pen cap (15).

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