Water quality detection pen

Abstract

The water quality detection pen 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] The present invention relates to a water quality detection pen. Background Art

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

[0003] The present invention overcomes the deficiencies of the prior art and provides a water quality detection pen.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A water quality detection 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 and are arranged opposite to each other, the upper ends of the ultraviolet emitter and the ultraviolet receiver respectively extend into the pen body and are electrically connected to the circuit board, and a display screen for displaying the detected water quality data is provided on the side surface of the pen body and is electrically connected to the circuit board.

[0006] A water quality detection pen as described above, 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] A water quality detection pen as described above, characterized in that: the lower end of the pen body is provided with an opening at the lower end, the opening at the lower end is connected with a protective cover, the protective cover is provided with a through hole for the water body to enter, and the detection ends of the two TDS electrodes, the detection end of the ultraviolet emitter, the detection end of the ultraviolet receiver, and the temperature detection probe are respectively arranged inside the protective cover.

[0008] A water quality detection pen as described above, characterized in that: mounting seats are respectively sleeved outside the ultraviolet emitter and the ultraviolet receiver, mounting seat positioning grooves for positioning and installing the mounting seats are respectively provided on both sides of the inner cavity of the protective cover, and light-transmitting parts are respectively provided on the opposite side surfaces of the two mounting seats and are arranged opposite to each other, and the detection ends of the ultraviolet emitter and the ultraviolet receiver are respectively arranged on the light-transmitting parts of the two mounting seats on both sides.

[0009] A water quality detection pen as described above, characterized in that: the volumes of the two mounting seats are different.

[0010] A water quality detection pen as described above, characterized in that: a positioning notch is provided at the lower end of the circuit board, and circuit board positioning grooves for respectively positioning and loading the two ends of the positioning notch are provided on the protective cover; a pen cap that closes and protects the protective cover and is separable is covered on the protective cover.

[0011] A water quality detection pen as described above, characterized in that: a key for inputting control instructions and connected to the circuit board is provided on the side surface of the pen body.

[0012] A water quality detection pen as described above, characterized in that: a battery holder with an open upper end is provided on the circuit board, a pen body through hole communicating with the battery holder for loading the battery is provided on the upper end surface of the pen body, and a battery holder conductive connector that can rotate to close the pen body through hole and is electrically connected to one end of the battery to supply power from the battery to the circuit board is provided at the upper end of the pen body.

[0013] A water quality detection pen as described above, characterized in that: a data interface for supplying power to the circuit board and reading data from the circuit board through a connection data line is provided on the upper end surface of the pen body and is connected to the circuit board.

[0014] A water quality detection pen as described above, characterized in that: a pen body groove is provided on the upper end surface of the pen body, the pen body through hole and the data interface are both arranged on the bottom surface of the pen body groove, the battery holder conductive connector is arranged in the pen body groove, the pen body groove is connected with a detachable pen cap for closing the pen body groove, and a sealing ring is provided on the outer side of the connection end of the pen cap.

[0015] The beneficial effects of the present invention are:

[0016] A circuit board is provided inside the pen body of the present invention, and two TDS electrodes, a temperature detection probe, and a UV emitter and a UV receiver arranged oppositely for detecting the UV transmittance and respectively electrically connected to the circuit board are provided at the lower end of the pen body. After receiving the detection data, the circuit board calculates the TDS value, TOC value, COD value, and temperature value of the water body, improving the accuracy of the water quality detection result. [Description of the Drawings]

[0017] Figure 1 One of the structural schematic diagrams of the present invention;

[0018] Figure 2 Another structural schematic diagram of the present invention;

[0019] Figure 3 One of the exploded views of the present invention;

[0020] Figure 4 Schematic diagram of the circuit board of the present invention;

[0021] Figure 5 Another exploded view of the present invention;

[0022] Figure 6 Another exploded view of the present invention. [Detailed Implementation Manner]

[0023] Next, the technical solutions in the embodiments of the present invention will 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 the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly. In addition, the descriptions involving "preferred", "sub-preferred", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "preferred" and "sub-preferred" may explicitly or implicitly include at least one such feature.

[0025] As Figure 1-6 shown, a water quality detection pen includes a pen body 1. A circuit board 2 is provided inside the pen body 1. Two TDS electrodes 3 are provided at the lower end of the pen body 1. The upper ends of the TDS electrodes 3 extend into the pen body 1 and are electrically connected to the circuit board 2. An ultraviolet emitter 4 and an ultraviolet receiver 5 are provided at the lower end of the pen body 1 and are arranged oppositely. The upper ends of the ultraviolet emitter 4 and the ultraviolet receiver 5 respectively extend into the pen body 1 and are electrically connected to the circuit board 2. A display screen 6 for displaying the detected water quality data is provided on the side surface of the pen body 1 and is electrically connected to the circuit board 2. Among them, a temperature detection probe 7 is provided at the lower end of the pen body 1. The upper end of the temperature detection probe 7 extends into the pen body 1 and is electrically connected to the circuit board 2.

[0026] During detection, the lower end of the pen body 1 is placed into the water body. The two TDS electrodes 3 detect the EC conductivity of the water body, and the temperature detection probe 7 detects the water temperature value. At the same time, the ultraviolet emitter 4 works to emit ultraviolet light, and the ultraviolet receiver 5 receives the ultraviolet light passing through the water body to detect the UV transmittance of the water body. The detected data are respectively sent to the circuit board 2. The circuit board 2 calculates to obtain the TDS value, TOC value, and COD value of the water body, and displays information such as the TDS value, TOC value, COD value, EC value, UV value, and temperature value through the display screen 6. In this case, the circuit board 2 can also be connected to intelligent devices such as mobile phones to send the detected data to the intelligent devices, and the intelligent devices can upload the detected data together with the positioning information to the background 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 according to the temperature to obtain corresponding voltage digital signals, and the SOC central processing unit on the circuit board 2 reads the digital signals 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, and after analog-to-digital conversion, the EC conductivity of the water body is obtained. After temperature compensation calculation, the TDS result is obtained. Among them, the temperature compensation calculation provides the detection value of TDS. The temperature compensation calculation is to perform curve fitting after multi-point sampling to obtain the corresponding equation between temperature, conductivity, and TDS value, and calculate the TDS result through this equation plus the parameters obtained after calibration.

[0029] In this case, the detection principles of TOC value and COD value are that the SOC central processor drives the ultraviolet emitter 4 to emit ultraviolet light. After the ultraviolet receiver 5 receives the ultraviolet light, a voltage signal corresponding to the light intensity is obtained, and after analog-to-digital conversion, the UV transmittance of the water is obtained. Among them, after multi-point sampling, curve fitting is performed to obtain the corresponding equation between UV value, TOC value, and COD value, and the TOC and COD results are calculated through this equation plus the parameters obtained after calibration.

[0030] As Figure 2-5 shown, the lower end of the pen body 1 is provided with an opening at the lower end. The opening at the lower end is connected with a protective cover 8. The protective cover 8 is provided with a protective cover through hole 801 for the water body 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 arranged in the protective cover 8. By setting the protective cover 8, the detection ends are protected to prevent the detection ends from being damaged. In this case, the ultraviolet emitter 4, the ultraviolet receiver 5, the two TDS electrodes 3, and the temperature detection probe 7 can also be staggeredly arranged in the protective cover 8, and the extending lengths of the emitting end of the ultraviolet emitter 4 and the receiving end of the ultraviolet receiver 5 are respectively longer than the extending lengths of the TDS electrode 3 and the temperature detection probe 7, and the extending length of the TDS electrode 3 is longer than the extending length of the temperature detection probe 7, which can avoid interference between each other and provide detection accuracy.

[0031] As Figure 2-6 shown, mounting seats 9 are respectively sleeved outside the ultraviolet emitter 4 and the ultraviolet receiver 5, which play the role of waterproofing and protecting the ultraviolet emitter 4 and the ultraviolet receiver 5; mounting seat positioning grooves 802 for positioning and installing the mounting seats 9 are respectively arranged on both sides of the inner cavity of the protective cover 8. After ensuring that the mounting seats 9 are positioned and installed, the emitting end of the external line emitter 4 and the detection end of the ultraviolet receiver 5 are arranged opposite to each other to prevent displacement between each other and unable to realize the detection of ultraviolet light transmittance; opposite light-transmitting parts 901 are respectively arranged on the opposite side surfaces of the two mounting seats 9. The detection ends of the ultraviolet emitter 4 and the ultraviolet receiver 5 are respectively arranged on the light-transmitting parts 901 of the two mounting seats 9 to ensure that the ultraviolet light emitted by the ultraviolet emitter 4 passes through the water body and is sent to the ultraviolet receiver 5; the volumes of the two mounting seats 9 are different, which is convenient for distinguishing the ultraviolet emitter 4 and the ultraviolet receiver 5, and is convenient for quick circuit connection and production assembly.

[0032] As Figure 2 and Figure 6 shown, a positioning notch 201 is provided at the lower end of the circuit board 2, and a circuit board positioning groove 803 for positioning and inserting the two ends of the positioning notch 201 respectively is provided on the protective cover 8. Cooperating with the pen body 1, the circuit board 2 can be quickly positioned and installed in the pen body 1; a pen cap 10 that covers and closes the protective cover 8 and is separable is covered on the protective cover 8, which plays a role in protecting the protective cover 8 and also prevents foreign objects from entering the protective cover 8 and damaging the detection end.

[0033] As Figure 1-3 shown, a key 11 for inputting control instructions and connected to the circuit board 2 is provided on the side surface of the pen body 1. The power-on and off control instructions can be input into the circuit board 2 through the key 11, and the page turning control instruction of the display screen can also be input to view different detection data.

[0034] As Figure 5-6 shown, a battery seat 12 with an open upper end is provided on the circuit board 2. A pen body through hole 101 communicating with the battery seat 12 for inserting a battery is provided on the upper end surface of the pen body 1. A battery seat conductive connector 13 that can rotatably close the pen body through hole 101 and is electrically connected to one end of the battery to supply power to the circuit board 2 is provided at the upper end of the pen body 1. The battery can be inserted into the battery seat 12 through the pen body through hole 101, and after covering the battery seat conductive connector 13, the battery supplies power to the circuit board 2.

[0035] As Figure 5-6 shown, a data interface 14 for supplying power to the circuit board 2 and reading data of the circuit board 2 through a connection data line is provided on the upper end surface of the pen body 1. The circuit board 2 can be directly powered through the data line plugged into the data interface 14, and the detection data can also be directly read.

[0036] As Figure 5-6 shown, a pen body groove 102 is provided on the upper end surface of the pen body 1. The pen body through hole 101 and the data interface 14 are both arranged on the bottom surface of the pen body groove 102. The battery seat conductive connector 13 is arranged in the pen body groove 102. The pen body groove 102 is connected with a pen cover 15 that can close the pen body groove 102 and is detachable. A sealing ring 16 is provided on the outer side of the connecting end of the pen cover 15 to improve the sealing performance of the upper end of the pen body and prevent water from entering and causing damage.

[0037] The water quality detection pen in this case can measure appropriate minerals in water and conduct comprehensive analysis in combination with total organic carbon TOC and chemical oxygen demand COD. Through this detection pen, users can preliminarily judge the quality of water and whether it meets the standard of good mineral water. In addition, this detection pen also has a data upload function, which can upload water quality data to the cloud, and combined with big data analysis technology, provide users with more accurate and comprehensive water quality monitoring reports. This innovative tool provides a convenient and efficient means for water quality monitoring and has broad application prospects.

[0038] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A water quality detection pen, characterized in that: It includes a pen body (1). A circuit board (2) is provided inside the pen body (1). Two TDS electrodes (3) are provided at the lower end of the pen body (1). The upper ends of the TDS electrodes (3) extend into the pen body (1) and are electrically connected to the circuit board (2). At the lower end of the pen body (1), a UV emitter (4) and a UV receiver (5) are provided opposite to each other. The upper ends of the UV emitter (4) and the UV receiver (5) respectively extend into the pen body (1) and are electrically connected to the circuit board (2). A display screen (6) for displaying water quality detection data and electrically connected to the circuit board (2) is provided on the side surface of the pen body (1).

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

4. The water quality detection pen according to claim 3, characterized in that: Mounting seats (9) are respectively sleeved outside the UV emitter (4) and the UV receiver (5). Mounting seat positioning grooves (802) for positioning and loading the mounting seats (9) are respectively provided on both sides of the inner cavity of the protective cover (8). Oppositely arranged light-transmitting parts (901) are respectively provided on the opposite side surfaces of the two mounting seats (9). The detection ends of the UV emitter (4) and the UV receiver (5) are respectively arranged on the light-transmitting parts (901) of the two mounting seats (9).

5. A water quality detection pen according to claim 4, characterized in that: The volumes of the two mounting seats (9) are different.

6. A water quality detection pen according to claim 3, characterized in that: A positioning notch (201) is provided at the lower end of the circuit board (2). Circuit board positioning grooves (803) for respectively positioning and loading the two ends of the positioning notch (201) are provided on the protective cover (8); A pen cap (10) that closes the protective cover (8) and is separable is covered on the protective cover (8).

7. The water quality detection pen according to claim 1, wherein: A key (11) for inputting control instructions and connected to the circuit board (2) is provided on the side surface of the pen body (1).

8. A water quality detection pen according to claim 1, characterized in that: A battery seat (12) with an opening at the upper end is provided on the circuit board (2). A pen body through hole (101) communicating with the battery seat (12) for loading the battery is provided on the upper end surface of the pen body (1). A battery seat conductive connector (13) that can rotate to close the pen body through hole (101) and is electrically connected to one end of the battery to supply power from the battery to the circuit board (2) is provided at the upper end of the pen body (1).

9. A water quality detection pen according to claim 8, characterized in that: A data interface (14) for supplying power to the circuit board (2) and reading data of the circuit board (2) through a connection data line and connected to the circuit board (2) is provided on the upper end surface of the pen body (1).

10. A water quality detection pen according to claim 9, characterized in that: A pen body groove (102) is provided on the upper end surface of the pen body (1). 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 seat conductive connector (13) is provided in the pen body groove (102). The pen body groove (102) is connected with a pen cover (15) that can be disassembled to close the pen body groove (102). A sealing ring (16) is provided on the outer side of the connecting end of the pen cover (15).

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