Arrangement structure of detection probe of water quality detection pen
By dividing the water quality testing pen into independent testing areas and setting up probes in each area within the protective cap, the problem of interference between probes is solved, enabling accurate detection of water quality parameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JIUXIN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-06-09
AI Technical Summary
Existing water quality testing pens suffer from insufficient accuracy due to their probes being too close together, making it impossible to accurately detect parameters such as total organic carbon (TOC) and chemical oxygen demand (COD) in water.
The water quality testing pen has an independent testing area inside its protective cap. The temperature detection probe, TDS electrode detection probe, and ultraviolet detection probe are placed in different testing areas, and the ultraviolet emitting probe and receiving probe are set up accordingly to reduce detection interference between probes.
It improves the accuracy of water quality testing, enabling independent detection of parameters such as water temperature, TDS, TOC, and COD, while reducing detection interference between probes.
Smart Images

Figure CN224341474U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to a detection probe arrangement structure for a water quality testing pen. [Background Technology]
[0002] Existing water quality testing pens have temperature and TDS (Total Dissolved Solids) detection functions, generally requiring a temperature probe and two TDS electrodes. However, the close proximity of these probes can easily affect the accuracy of the data obtained from each probe. Furthermore, accurate water quality assessment requires not only measuring water temperature and TDS, but also parameters such as TOC (Total Organic Carbon) and COD (Chemical Oxygen Demand). Therefore, existing water quality testing pens suffer from inaccurate results. [Utility Model Content]
[0003] This invention overcomes the shortcomings of the prior art and provides a detection probe arrangement structure for a water quality testing pen.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A probe arrangement structure for a water quality testing pen, characterized in that: it includes a pen body with an opening at the lower end, a protective cover connected to the lower end of the pen body, a protective cover through hole on the side of the protective cover for water to enter, a temperature detection probe, two TDS electrode detection probes, an ultraviolet emission probe and an ultraviolet receiving probe on the connecting end face of the protective cover, and a first detection area, a second detection area and a third detection area inside the protective cover. The temperature detection probe detects in the first detection area, the two TDS electrode detection probes are located in the second detection area, and the ultraviolet emission probe and the ultraviolet receiving probe are located in the third detection area with the emitting end of the ultraviolet emission probe and the receiving end of the ultraviolet receiving probe facing each other.
[0006] The detection probe arrangement structure of the water quality testing pen described above is characterized in that: a mounting base is respectively fitted around the ultraviolet emitting probe and the ultraviolet receiving probe, and mounting base positioning grooves are respectively provided on both sides of the inner cavity of the protective cover for positioning and insertion of the mounting base, and the emitting end of the ultraviolet emitting probe and the receiving end of the ultraviolet receiving probe are arranged in the third detection area.
[0007] The detection probe arrangement structure of the water quality testing pen as described above is characterized in that: light-transmitting parts are respectively provided on opposite sides of the mounting bases on both sides, and the detection ends of the ultraviolet emitting probe and the ultraviolet receiving probe are respectively provided on the light-transmitting parts of the mounting bases on both sides.
[0008] The detection probe arrangement structure of the water quality testing pen described above is characterized in that: the length of the temperature detection probe and the TDS electrode detection probe extending out of the protective cover connection end face is shorter than the extension length of the ultraviolet emitting probe and the ultraviolet receiving probe.
[0009] The detection probe arrangement structure of the water quality testing pen described above is characterized in that: the length of the temperature detection probe extending out of the protective cover connection end face is shorter than the extension length of the TDS electrode detection probe.
[0010] The detection probe arrangement structure of the water quality testing pen described above is characterized in that: the two mounting bases are of different sizes.
[0011] The detection probe arrangement structure of the water quality testing pen described above is characterized in that: the pen body is provided with a circuit board that is electrically connected to the temperature detection probe, the TDS electrode detection probe, the ultraviolet emission probe and the ultraviolet receiving probe respectively.
[0012] The detection probe arrangement structure of the water quality testing pen as described above is characterized in that: the lower end of the circuit board is provided with a positioning notch, and the protective cover is provided with a circuit board positioning groove for positioning and inserting the positioning notch at both ends.
[0013] The detection probe arrangement structure of the water quality testing pen described above is characterized in that: the protective cover has through holes on its two opposite sides and the lower end face respectively.
[0014] The beneficial effects of this utility model are:
[0015] This invention divides the pen body's protective cover into three independently set detection areas: a first detection area, a second detection area, and a third detection area. A temperature detection probe is positioned in the first detection area, two TDS electrode detection probes are positioned in the second detection area, and an ultraviolet emission probe and an ultraviolet reception probe are positioned in the third detection area. The ultraviolet emission probe and ultraviolet reception probe enable the detection of total organic carbon (TOC) and chemical oxygen demand (COD) in water. Furthermore, the fact that each detection probe is positioned in an independent detection area reduces mutual detection interference. [Image Description]
[0016] Figure 1 This is a schematic diagram of the water quality testing pen of this utility model;
[0017] Figure 2 This is a schematic diagram showing the distribution of the probes in this utility model;
[0018] Figure 3 This is one of the exploded views of the water quality testing pen of this utility model;
[0019] Figure 4 This is the second exploded view of the water quality testing pen of this utility model. [Detailed Implementation]
[0020] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.
[0021] 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.
[0022] like Figure 1-4 As shown, a probe arrangement structure for a water quality testing pen includes a pen body 1 with an opening at the lower end, a protective cover 2 connected to the lower end of the pen body 1, a protective cover through hole 21 for water to enter on the side of the protective cover 2, a temperature detection probe 3, two TDS electrode detection probes 4, an ultraviolet emission probe 5, and an ultraviolet receiving probe 6 on the connecting end face of the protective cover 2, a first detection area 22, a second detection area 23, and a third detection area 24 inside the protective cover 2, the temperature detection probe 3 detects in the first detection area 22, the two TDS electrode detection probes 4 are located in the second detection area 23, and the ultraviolet emission probe 5 and the ultraviolet receiving probe 6 are located in the third detection area 24 with the emitting end of the ultraviolet emission probe 5 and the receiving end of the ultraviolet receiving probe 6 facing each other, and a circuit board 8 is provided inside the pen body 1 that is electrically connected to the temperature detection probe 3, the TDS electrode detection probe 4, the ultraviolet emission probe 5, and the ultraviolet receiving probe 6 respectively. In this case, two TDS electrode detection probes 4 are used to detect the EC conductivity of the water body, and the temperature detection probe 3 is used to detect the water temperature. At the same time, the ultraviolet emission probe 4 works to emit ultraviolet light, and the ultraviolet receiving probe 5 receives the ultraviolet light passing through the water body to detect the UV transmittance of the water body. The above detection data are sent to the circuit board 8 respectively. The circuit board 8 calculates the TDS value, TOC value and COD value of the water body, and displays the TDS value, TOC value, COD value, EC value, UV value and temperature value on the display screen.
[0023] like Figure 2As shown, the temperature detection probe 3, two TDS electrode detection probes 4, one ultraviolet emitting probe 5, and one ultraviolet receiving probe 6 are respectively set within their respective detection areas. The probes are staggered on the protective cover 2 to reduce mutual interference during detection. This prevents issues such as the TDS electrode detection probe 4 and the temperature detection probe 3 blocking the ultraviolet light emitted by the ultraviolet emitting probe 5 from reaching the ultraviolet receiving probe 6, and avoids the temperature detection probe 3 affecting TDS electrode data detection when positioned between the two TDS electrode detection probes 4. Furthermore, in this design, partitions can be installed on the protective cover 2 between the detection areas to ensure independence between them and improve detection accuracy.
[0024] like Figure 1-4 As shown, the ultraviolet emitting probe 5 and the ultraviolet receiving probe 6 are respectively fitted with mounting bases 7, which serve to waterproof and protect the ultraviolet emitting probe 5 and the ultraviolet receiving probe 6; the inner cavity of the protective cover 2 is provided with mounting base positioning grooves 25 on both sides for positioning and inserting the mounting bases 7. The emitting end of the ultraviolet emitting probe 5 and the receiving end of the ultraviolet receiving probe 6 are set in the third detection area 24, so that the ultraviolet emitting probe 5 and the ultraviolet receiving probe 6 can be quickly positioned and installed in the protective cover 2, and the emitting end of the ultraviolet emitting probe 5 and the receiving end of the ultraviolet receiving probe 6 are arranged opposite each other in the protective cover 2.
[0025] like Figure 2-4 As shown, the two mounting bases 7 have light-transmitting parts 71 arranged opposite to each other on their opposite sides. The detection ends of the ultraviolet emitting probe 5 and the ultraviolet receiving probe 6 are respectively set on the light-transmitting parts 71 of the two mounting bases 7, so as to ensure that the ultraviolet light emitted by the ultraviolet emitting probe 5 passes through the water and is sent to the ultraviolet receiving probe 6. The two mounting bases 7 are different in size, which makes it easy to distinguish the ultraviolet emitting probe 5 and the ultraviolet receiving probe 6, and facilitates rapid circuit connection and production assembly.
[0026] like Figure 2-4 As shown, the lengths of the temperature detection probe 3 and the TDS electrode detection probe 4 extending out of the connecting end face of the protective cover 2 are shorter than the lengths of the ultraviolet emitting probe 5 and the ultraviolet receiving probe 6. The length of the temperature detection probe 3 extending out of the connecting end face of the protective cover 2 is shorter than the length of the TDS electrode detection probe 4, so that there is a height difference between each probe, further avoiding detection interference.
[0027] like Figure 3-4 As shown, the lower end of the circuit board 8 is provided with a positioning notch 81, and the protective cover 2 is provided with a circuit board positioning groove 26 for positioning and inserting the positioning notch 81 at both ends, so that the circuit board 8 can be quickly positioned and installed in the pen body 1.
[0028] like Figure 1-2As shown, the protective cover 2 has through holes 21 on its two opposite sides and the lower end face, which facilitates the entry of water into the protective cover 2.
[0029] In this case, Figure 2 The probe arrangement shown is one embodiment. In a preferred embodiment, the third detection area 24, in which the ultraviolet emitting probe 5 and the ultraviolet receiving probe 6 are installed, is located in the middle of the protective cover 2. The first detection area 22, in which the temperature detection probe 3 is installed, and the second detection area 23, in which two TDS electrode detection probes 4 are installed, are respectively located inside the protective cover 2 on both sides of the third detection area 24, which can minimize mutual interference.
[0030] 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 probe arrangement structure for a water quality testing pen, characterized in that: The device includes a pen body (1) with an opening at the bottom. A protective cover (2) is connected to the bottom of the pen body (1). The protective cover (2) has a protective cover through hole (21) on its side for water to enter. A temperature detection probe (3), two TDS electrode detection probes (4), an ultraviolet emission probe (5), and an ultraviolet receiving probe (6) are provided on the connecting end face of the protective cover (2). The protective cover (2) has a first detection area (22), a second detection area (23), and a third detection area (24). The temperature detection probe (3) detects in the first detection area (22). The two TDS electrode detection probes (4) are set in the second detection area (23). The ultraviolet emission probe (5) and the ultraviolet receiving probe (6) are set in the third detection area (24), and the emitting end of the ultraviolet emission probe (5) and the receiving end of the ultraviolet receiving probe (6) are set opposite to each other.
2. The detection probe arrangement structure of a water quality testing pen according to claim 1, characterized in that: The ultraviolet emitting probe (5) and the ultraviolet receiving probe (6) are respectively fitted with mounting bases (7). The inner cavity of the protective cover (2) is provided with mounting base positioning grooves (25) on both sides for positioning and inserting the mounting bases (7). The emitting end of the ultraviolet emitting probe (5) and the receiving end of the ultraviolet receiving probe (6) are set in the third detection area (24).
3. The detection probe arrangement structure of a water quality testing pen according to claim 2, characterized in that: On opposite sides of the mounting bases (7), there are light-transmitting parts (71) arranged opposite to each other. The detection end of the ultraviolet emitting probe (5) and the detection end of the ultraviolet receiving probe (6) are respectively arranged on the light-transmitting parts (71) of the mounting bases (7).
4. The detection probe arrangement structure of a water quality testing pen according to claim 1, characterized in that: The length of the temperature detection probe (3) and the TDS electrode detection probe (4) extending out of the protective cover (2) is shorter than the length of the ultraviolet emitting probe (5) and the ultraviolet receiving probe (6).
5. The detection probe arrangement structure of a water quality testing pen according to claim 4, characterized in that: The length of the temperature detection probe (3) extending out of the protective cover (2) is shorter than the length of the TDS electrode detection probe (4).
6. The detection probe arrangement structure of a water quality testing pen according to claim 2, characterized in that: The two mounting bases (7) are different in size.
7. The detection probe arrangement structure of a water quality testing pen according to claim 1, characterized in that: The pen body (1) contains a circuit board (8) that is electrically connected to the temperature detection probe (3), the TDS electrode detection probe (4), the ultraviolet emission probe (5), and the ultraviolet receiving probe (6).
8. The detection probe arrangement structure of a water quality testing pen according to claim 7, characterized in that: The lower end of the circuit board (8) is provided with a positioning notch (81), and the protective cover (2) is provided with a circuit board positioning groove (26) for positioning the two ends of the positioning notch (81) to be inserted.
9. The detection probe arrangement structure of a water quality testing pen according to claim 1, characterized in that: The protective cover (2) has through holes (21) on its two opposite sides and the lower end face.