TDS detection pen

Abstract

The utility model relates to a TDS (Total Dissolved Solids) detection pen, which comprises a body, a detection probe and a detection probe, the circuit board is fixedly arranged in the body, and a first connecting piece is arranged on the circuit board; the detection assembly comprises a probe and a temperature sensor, the probe is provided with a second connecting piece, the second connecting piece is detachably connected with the first connecting piece, the temperature sensor is arranged on the circuit board, and the probe is used for detecting the water quality of a water body. And the temperature sensor is used for detecting the water temperature of the water body. According to the TDS detection pen, the probe can be replaced, so that the detection precision of the TDS pen is improved.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing, specifically to a TDS testing pen. Background Technology

[0002] TDS (Total Dissolved Solids) refers to the concentration of total dissolved solids in water, and it can be used as a standard for water quality testing. The lower the TDS value, the lower the concentration of calcium, magnesium, aluminum, and potassium ions in the water, and the lower the conductivity. However, in current TDS meters, the probe can accumulate dirt after repeated use, which can affect the accuracy of the TDS meter. Utility Model Content

[0003] Therefore, this utility model provides a TDS detection pen. The TDS detection pen has replaceable probes to improve the detection accuracy of the TDS pen.

[0004] This utility model provides the following technical solution: a TDS detection pen, comprising:

[0005] The body has a receiving cavity;

[0006] A circuit board, which is fixedly disposed within the body, and a first connector is provided on the circuit board;

[0007] The detection component includes a probe and a temperature sensor. The probe is provided with a second connector, which is detachably connected to the first connector. The temperature sensor is disposed on the circuit board. The probe is used to detect the water quality of the water body, and the temperature sensor is used to detect the water temperature of the water body.

[0008] Furthermore, the main body has an opening at one end near the detection component, and the opening communicates with the receiving cavity.

[0009] Furthermore, the first connector has a fixing part and a connecting part;

[0010] The connecting part is disposed on the outer periphery of the fixing part, the fixing part is used to connect with the body, and the connecting part is used to electrically connect with the probe.

[0011] Furthermore, the body is provided with a through hole, and the temperature sensor is disposed on the side of the circuit board near the opening, with the sensor located inside the through hole.

[0012] Furthermore, the body also includes: an extension portion; the extension portion is disposed at one end near the detection component, the extension portion is disposed around the outer periphery of the probe, and the probe is located within the extension portion;

[0013] The length of the extension is greater than or equal to the length of the probe; a vent is provided on the side of the extension near the body, and the vent is arranged around the outer periphery of the extension.

[0014] Furthermore, it also includes a display screen.

[0015] The main body has a hollowed-out section in the middle, the display screen is disposed in the hollowed-out section, and the display screen is electrically connected to the circuit board.

[0016] Furthermore, it also includes buttons;

[0017] The main body is provided with a mounting part, which is disposed on the main body and penetrates the main body. The button is disposed on the mounting part and is connected to the circuit board.

[0018] Furthermore, it also includes energy storage components;

[0019] The energy storage component includes a battery compartment and a battery compartment cover;

[0020] The battery compartment is disposed on the body and communicates with the receiving cavity. The battery compartment is disposed on the side away from the extension. The battery compartment cover is detachably connected to the battery compartment. When the battery compartment cover is connected to the battery compartment, the battery compartment cover seals the battery compartment.

[0021] Furthermore, the battery compartment and the circuit board are arranged along the length direction of the body, and the battery compartment is electrically connected to the circuit board.

[0022] Furthermore, it also includes pen caps and pen lids;

[0023] The pen cap is located on the side of the body near the extension; the pen cover is located on the side of the body near the battery compartment cover.

[0024] The aforementioned TDS testing pen features a first connector on the circuit board and a second connector that connects to the probe. By making the first and second connectors detachable, the probe is replaceable, allowing it to be replaced after repeated use and contamination, thus improving the testing accuracy of the TDS testing pen. The temperature sensor can detect the current water temperature and provide temperature compensation for the TDS measurement results, further enhancing the accuracy of the TDS testing pen when testing water quality. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A cross-sectional view of the detection pen provided in an embodiment of this utility model;

[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of the first connector provided in an embodiment of the present utility model;

[0029] Figure 4 This is a partial structural schematic diagram of the TDS detection pen provided in an embodiment of the present utility model;

[0030] Figure 5 A schematic diagram of the overall structure of the TDS detection pen provided in this embodiment of the utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100. Detection pen; 10. Body; 11. Receiving cavity; 12. Opening; 13. Hollowed-out part; 14. Mounting part; 15. Through hole; 20. Circuit board; 21. First connector; 211. Fixing part; 212. Connecting part; 30. Detection component; 31. Probe; 32. Temperature sensor; 33. Second connector; 40. Extension part; 41. Vent hole; 50. Display screen; 60. Button; 70. Energy storage component; 71. Battery compartment; 72. Battery compartment cover; 80. Pen cap; 90. Pen cover. Detailed Implementation

[0033] 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.

[0034] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0035] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] TDS (Total Dissolved Solids) refers to the concentration of total dissolved solids in water, and it can be used as a standard for water quality testing. The lower the TDS value, the lower the concentration of calcium, magnesium, aluminum, and potassium ions in the water, and the lower the conductivity. However, in current TDS meters, the probe can accumulate dirt after repeated use, which can affect the accuracy of the TDS meter.

[0037] Therefore, this embodiment provides a TDS detection pen 100. The TDS detection pen 100 has a replaceable probe 31 to improve the detection accuracy of the TDS pen.

[0038] Please see Figure 1 and Figure 5 A TDS detection pen 100, comprising:

[0039] Body 10, the body 10 having a receiving cavity 11;

[0040] Circuit board 20, the circuit board 20 is fixedly disposed in the body 10, and a first connector 21 is disposed on the circuit board 20;

[0041] The detection component 30 includes a probe 31 and a temperature sensor 32. The probe 31 is provided with a second connector 33, which is detachably connected to the first connector 21. The temperature sensor 32 is disposed on the circuit board 20. The probe 31 is used to detect the water quality of the water body, and the temperature sensor 32 is used to detect the water temperature of the water body.

[0042] The TDS detector 100 described above has a first connector 21 and a second connector 33 connected to the probe 31 on the circuit board 20. By making the first connector 21 and the second connector 33 detachably connected, the probe 31 is replaceable. After the probe 31 becomes contaminated after multiple uses, it can be replaced to improve the detection accuracy of the TDS detector 100. The temperature sensor 32 can detect the current water temperature and provide temperature compensation for the TDS measurement results, further improving the detection accuracy of the TDS detector 100 when detecting water quality.

[0043] Understandably, the body 10 has an internal cavity 11 for accommodating the circuit board 20 and the detection assembly 30. The circuit board 20 is fixedly mounted on the side wall of the cavity 11, and the first connector 21 is electrically connected to the circuit board 20. A second connector 33 is provided on one end of the probe 31, and the other end is used for detection. The second connector 33 can be detachably connected to the first connector 21. In order to ensure reliable connection between the probe 31 and the second connector 33, the second connector 33 on the probe 31 is fixedly mounted on the probe 31. When the first connector 21 and the second connector 33 are connected, the probe 31 can work normally.

[0044] After repeated use, probe 31 may rust or corrode due to impurities, grease, microorganisms or chemicals in the water. To ensure the accuracy of TDS detection pen 100, probe 31 can be replaced. When probe 31 needs to be replaced, simply remove it from the first connector 21 and replace it with a new probe 31. This can reduce the operating cost of TDS detection pen 100 and improve its detection accuracy.

[0045] The temperature sensor 32 can detect the current water temperature. Since the conductivity of water changes with temperature, the temperature has a great impact on the accuracy of the detection. The temperature sensor 32 is set on the TDS detection pen 100 to detect the current water temperature. After detection, the measurement result can be corrected according to the conductivity at the current temperature to improve the detection accuracy of the TDS detection pen 100.

[0046] Please see Figure 1 and Figure 2 In some embodiments, the body 10 has an opening 12 at one end near the detection component 30, the first connector 21 is disposed in the opening 12, and the opening 12 communicates with the receiving cavity 11.

[0047] Understandably, an opening 12 is provided at one end of the main body 10 near the detection component 30. The opening 12 communicates with the receiving cavity 11. The opening 12 facilitates the connection between the first connector 21 and the probe 31. The first connector 21 is located on one side of the opening 12, and a sealing element is provided around the first connector 21 to seal the area around the opening 12. The sealed opening 12 can effectively limit water from entering the receiving cavity 11, avoiding damage to the circuit board 20 inside the receiving cavity 11, thereby improving the reliability and detection accuracy of the TDS detection pen 100.

[0048] Please see Figure 3 In some embodiments, the first connector 21 has a fixing part 211 and a connecting part 212;

[0049] The connecting part 212 is disposed on the outer periphery of the fixing part 211. The fixing part 211 is used to connect with the body 10, and the connecting part 212 is used to electrically connect with the probe 31.

[0050] Understandably, the first connector 21 includes a fixing part 211 and a connecting part 212. The fixing part 211 is used to connect with the side wall of the accommodating cavity, which can play a certain role in fixing the probe 31. The connecting part 212 is disposed inside the fixing part 211 and is used to achieve electrical connection with the probe 31. The connecting part 212 is provided with multiple contacts, which can receive electrical signals from the probe 31 and also supply power to the probe 31. The second connector 33 adapted to it is also provided with pins. When the second connector 33 is connected to the first connector 21, the pins on the second connector 33 are inserted into the contacts of the connecting part 212 to form a circuit. The first connector 21 and the second connector 33 can be a transition fit or an interference fit to ensure the reliability of the connection between the first connector 21 and the second connector 33.

[0051] Please see Figure 2 In some embodiments, the body 10 is provided with a through hole 15, and the temperature sensor 32 is disposed on the side of the circuit board 20 near the opening 12, with the sensor located inside the through hole 15.

[0052] Understandably, the through hole 15 on the body 10 communicates with the interior of the receiving cavity 11, and the through hole 15 and the opening 12 are on the same horizontal line. The through hole 15 is used to install the temperature sensor 32, which extends into the through hole 15 or can be placed inside the receiving cavity 11 with its detection probe extending into the through hole 15. After the temperature sensor 32 is installed, the through hole 15 also needs to be sealed. For example, sealant or sealing rings can be placed around the temperature sensor 32 to make the interior of the receiving cavity 11 a sealed space, which can reduce the possibility of liquid entering the receiving cavity 11 during the measurement process and improve the reliability of the TDS detection pen 100.

[0053] Please see Figure 4 In some embodiments, the body 10 further includes an extension 40; the extension 40 is disposed at one end near the detection component 30, the extension 40 is disposed around the outer periphery of the probe 31, and the probe 31 is located within the extension 40;

[0054] The length of the extension 40 is greater than or equal to the length of the probe 31; a vent 41 is provided on the side of the extension 40 near the body 10, and the vent 41 is arranged around the outer periphery of the extension 40.

[0055] Understandably, the extension 40 is located on one side of the body 10. The extension 40 is arranged around the side of the body 10 to form a cavity. The extension 40 is mainly for protecting the probe 31. Specifically, during use, the probe 31 may be bent or damaged due to external force. After the extension 40 surrounds the probe 31, it can prevent the probe 31 from being bent or damaged due to external force.

[0056] In order to better protect the probe 31, the length of the extension 40 is set to be at least equal to the length of the probe 31, or the length of the extension 40 is greater than the length of the probe 31. This way, the probe 31 can be completely surrounded within the extension 40, thereby providing better protection.

[0057] After the extension section 40 is set, when the probe 31 detects water quality, the amount of water that can be detected may depend on the water quality entering the extension section 40, which may affect the accuracy of water quality detection. In order to avoid this situation, a vent 41 is set on one side of the extension section 40. Water can enter the extension section 40 through the vent 41, so that the water detected by the probe 31 is more abundant or comprehensive, which can improve the detection accuracy of the TDS test pen 100.

[0058] Multiple vent holes 41 can be provided around the extension 40. For example, four vent holes 41 can be provided around the four side walls of the extension 40. They can be elongated or two can be provided. In this embodiment of the present invention, eight vent holes 41 are provided. Four vent holes are provided along the middle of the extension 40 and four vent holes are provided on the side of the extension 40 near the circuit board 20, so as to maximize the detection accuracy of the TDS detection pen 100.

[0059] Please see Figure 4 and Figure 5 In some embodiments, a display screen 50 is also included;

[0060] The middle part of the main body 10 is provided with a hollow part 13, the display screen 50 is disposed in the hollow part 13, and the display screen 50 is electrically connected to the circuit board 20.

[0061] Understandably, the main body 10 is provided with a cutout portion 13, which is an opening 12 on the main body 10. The cutout portion 13 is connected to the receiving cavity 11. The size of the cutout portion 13 is slightly larger than or equal to the size of the display screen 50. The cutout portion 13 is used to set the display screen 50. When the display screen 50 is set in the cutout portion 13, the display covers the cutout portion 13. The display screen 50 is connected to the circuit board 20 through an electrical connection. The circuit board 20 controls the data displayed by the display screen 50 and provides power to the display screen 50.

[0062] The display screen 50 is mainly used to display the current water temperature and TDS concentration value. During measurement, the user can match the estimated perceived temperature with the currently displayed water temperature. Since water temperature has a significant impact on the conductivity of water, if the detected water temperature value and the perceived water temperature value differ significantly, the data may be incorrect and a remeasurement is required. This can improve the detection accuracy of the TDS detection pen 100.

[0063] Please see Figure 4 and Figure 5 In some implementations, a button 60 is also included;

[0064] The main body 10 is provided with a mounting part 14, which is disposed on the main body 10 and penetrates the main body 10. The button 60 is disposed on the mounting part 14 and is connected to the circuit board 20.

[0065] Understandably, a mounting part 14 is provided on the main body 10, which is disposed on and penetrates the main body 10. The mounting part 14 communicates with the receiving cavity 11. The mounting part 14 is square, and the button 60 is movably disposed on the mounting part 14. When the button 60 is installed on the mounting part 14, it can seal the square hole. The button 60 and the mounting part 14 are in clearance fit, so the button 60 can move up and down in the mounting part 14. The button 60 can be fixed on the mounting plate or electrically connected to the circuit board 20. The button 60 can be used to turn the TDS detector 100 on or off, which can reduce the power consumption of the TDS detector 100. When in use, the TDS detector 100 is turned on by pressing the button 60, and when not in use, the TDS detector 100 is turned off by pressing the button 60 again.

[0066] Please see Figure 1 and Figure 5 In some embodiments, an energy storage component 70 is also included;

[0067] The energy storage component 70 includes a battery compartment 71 and a battery compartment cover 72;

[0068] The battery compartment 71 is disposed on the body 10 and communicates with the receiving cavity 11. The battery compartment 71 is disposed on the side away from the extension 40. The battery compartment cover 72 is detachably connected to the battery compartment 71. When the battery compartment cover 72 is connected to the battery compartment 71, the battery compartment cover 72 seals the battery compartment 71.

[0069] Understandably, the energy storage component 70 is used to provide power to the TDS test pen 100. The energy storage component 70 includes a battery compartment 71 and a battery compartment cover 72. The battery compartment 71 is disposed on the main body 10 and is located close to the circuit board 20. The battery compartment cover 72 is detachably disposed on the battery compartment 71. After the battery compartment cover 72 is installed on the battery compartment 71, it can seal the battery compartment 71, making the battery compartment 71 a sealed space. The battery compartment 71 is used to house the battery, which is electrically connected to the circuit board 20 and provides power to the circuit board 20.

[0070] When the battery needs to be replaced, the user can open the battery compartment cover 72 to replace the battery. After the battery replacement is complete, the battery compartment cover 72 is installed in the battery compartment 71 to protect the battery compartment 71 and the battery.

[0071] Optionally, the aforementioned battery can be a button cell or a solid-state battery, etc.

[0072] Please see Figure 1 and Figure 5 In some embodiments, the battery compartment 71 and the circuit board 20 are arranged along the length direction of the body 10, and the battery compartment 71 is electrically connected to the circuit board 20.

[0073] Understandably, both the battery compartment 71 and the circuit board 20 are rectangular and are arranged along the length of the body 10. This reduces the occupancy rate of the receiving cavity 11 in the body 10 and makes the space occupied by the battery compartment 71 and the circuit board 20 in the receiving cavity 11 more reasonable.

[0074] Please see Figure 5 In some embodiments, it also includes a pen cap 80 and a pen cover 90;

[0075] The pen cap 80 is disposed on the side of the body 10 near the extension 40; the pen cover 90 is disposed on the side of the body 10 near the battery compartment cover 72.

[0076] Understandably, after the pen cap 80 is installed on the TDS test pen 100, the pen cap 80 cooperates with the extension 40 and covers the outside of the extension 40. When in use, the pen cap 80 is removed from the TDS pen to test the water. When not in use, the pen cap 80 is installed on the TDS test pen 100. In this way, the pen cap 80 can protect the probe 31; and when the TDS test pen 100 is not in use, it can prevent dust from falling onto the TDS test pen 100 and affecting the detection accuracy of the TDS test pen 100.

[0077] When in use, the user removes the pen cap 80 and presses the button 60 to turn on the TDS detection pen 100. Then, the tip of the TDS detection pen 100 is immersed in the liquid to be tested. When the probe 31 is immersed in the liquid to be tested, the detection signal collected by the main control chip will change. The circuit board 20 calculates the current TDS value of the water body based on the detection signal and then displays it on the display screen 50.

[0078] In this utility model, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this utility model can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this utility model can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this utility model, provided there is no contradiction between them.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of the technical solution of this utility model.

Claims

1. A TDS detection pen, characterized in that, include: Body (10), said body (10) having a receiving cavity (11); Circuit board (20), the circuit board (20) is fixedly disposed in the body (10), and a first connector (21) is disposed on the circuit board (20); The detection component (30) includes a probe (31) and a temperature sensor (32). The probe (31) is provided with a second connector (33), which is detachably connected to the first connector (21). The temperature sensor (32) is disposed on the circuit board (20). The probe (31) is used to detect the water quality of the water body, and the temperature sensor (32) is used to detect the water temperature of the water body.

2. The detection pen according to claim 1, characterized in that, The main body (10) has an opening (12) at one end near the detection component (30), and the opening (12) is connected to the receiving cavity (11).

3. The detection pen according to claim 2, characterized in that, The first connector (21) has a fixing part (211) and a connecting part (212); The connecting part (212) is disposed on the outer periphery of the fixing part (211), the fixing part (211) is used to connect with the body (10), and the connecting part (212) is used to electrically connect with the probe (31).

4. The detection pen according to claim 3, characterized in that, The body (10) is provided with a through hole (15), and the temperature sensor (32) is provided on the side of the circuit board (20) near the opening (12), and the sensor is located inside the through hole (15).

5. The detection pen according to claim 1, characterized in that, The body (10) further includes: an extension (40); the extension (40) is disposed at one end near the detection component (30), the extension (40) is disposed around the outer periphery of the probe (31), and the probe (31) is located inside the extension (40); The length of the extension (40) is greater than or equal to the length of the probe (31); the extension (40) is provided with a vent (41) on the side near the body (10), and the vent (41) is arranged around the outer periphery of the extension (40).

6. The detection pen according to claim 1, characterized in that, It also includes a display screen (50); The middle part of the body (10) is provided with a hollow part (13), the display screen (50) is disposed in the hollow part (13), and the display screen (50) is electrically connected to the circuit board (20).

7. The detection pen according to claim 1, characterized in that, It also includes a button (60); The main body (10) is provided with a mounting part (14), which is disposed on the main body (10) and penetrates the main body (10). The button (60) is disposed on the mounting part (14) and is connected to the circuit board (20).

8. The detection pen according to claim 5, characterized in that, It also includes energy storage components (70); The energy storage component (70) includes a battery compartment (71) and a battery compartment cover (72); The battery compartment (71) is disposed on the body (10) and communicates with the receiving cavity (11). The battery compartment (71) is disposed on the side away from the extension (40). The battery compartment cover (72) is detachably connected to the battery compartment (71). When the battery compartment cover (72) is connected to the battery compartment (71), the battery compartment cover (72) seals the battery compartment (71).

9. The detection pen according to claim 8, characterized in that, The battery compartment (71) and the circuit board (20) are arranged along the length of the body (10), and the battery compartment (71) is electrically connected to the circuit board (20).

10. The detection pen according to claim 9, characterized in that, It also includes a pen cap (80) and a pen lid (90); The pen cap (80) is disposed on the side of the body (10) near the extension (40); the pen cover (90) is disposed on the side of the body (10) near the battery compartment cover (72).

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