Water quality monitor
By introducing a depth positioning component, including a buoyancy unit and a clamping unit, into a portable water quality monitor, the problem of inaccurate control over the sensor placement depth is solved, enabling precise sensor positioning and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANDONG HYDROLOGY BUREAU OF LIAONING PROVINCE
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-05
AI Technical Summary
Portable water quality monitors cannot accurately control the insertion depth of multi-functional water quality sensors during testing, relying on the experience and judgment of the testing personnel.
A depth positioning component was designed, including a buoyancy unit and a clamping unit. The buoyancy unit floats on the water surface to provide pulling force, and the clamping unit provides clamping force, thereby limiting the insertion depth of the multi-functional water quality sensor.
It achieves precise control over the insertion depth of the multi-functional water quality sensor, is simple and convenient to operate, and avoids errors caused by human experience.
Smart Images

Figure CN224203179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality monitoring instrument technology, specifically a water quality monitoring instrument. Background Technology
[0002] Portable water quality monitors are lightweight, handheld, or box-type instruments used for rapid on-site detection of water quality parameters. They are suitable for scenarios such as field surveys, emergency response, and temporary monitoring. For example, the AMT-YB101 portable multi-parameter water quality monitor adopts a multi-sensor integration and intelligent algorithm processing design. Through various technologies such as electrochemical, optical, and chemical colorimetry, it can detect parameters such as water temperature, pI (acidity / alkalinity), ORP (oxidation-reduction potential), conductivity, dissolved oxygen, turbidity, ammonia nitrogen, residual chlorine (HClO), dissolved ozone (O3), color, salinity, COD (chemical oxygen demand), transparency, blue-green algae, chlorophyll a, sludge concentration / suspended solids (SS), etc. The host's LCD touch screen can display the detection results in real time. Measurement data can also be exported through the USB interface on the right side of the host, or the measurement data can be transmitted to the cloud platform (Web / APP) in real time through the built-in wireless 4G data transmission module.
[0003] Portable water quality monitors require the placement of a multi-functional water quality sensor into the water to be tested. The placement depth of this sensor relies on the operator's experience, making precise control of the sensor's placement depth impossible. Therefore, this paper proposes a water quality monitor... Utility Model Content
[0004] The purpose of this invention is to provide a water quality monitoring instrument in order to solve the problems mentioned above.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a water quality monitor, comprising a portable water quality monitor consisting of a main unit, a cable, and a multi-functional water quality sensor. The multi-functional water quality sensor is electrically connected to the sensor interface of the main unit via a cable. A depth positioning component is provided on the outside of the cable. When the multi-functional water quality sensor is placed into the water to be tested, the depth positioning component provides a pulling force to the multi-functional water quality sensor to limit the placement depth of the multi-functional water quality sensor.
[0006] The depth positioning component includes a buoyancy unit and a clamping unit;
[0007] The buoyancy unit floats on the surface of the water to be measured, providing tension for the all-in-one water quality sensor;
[0008] The clamping unit is used to provide clamping force between the buoyancy unit and the cable, and to realize the position adjustment operation of the buoyancy unit.
[0009] As a further embodiment of this utility model: the buoyancy unit includes an annular float and a fixed cylindrical column;
[0010] The fixed cylinder is fixed to the top of the annular floating plate, and the annular floating plate and the fixed cylinder are integrally sleeved on the outside of the cable. The clamping unit is distributed on the outside of the fixed cylinder and clamps the outer wall of the cable.
[0011] The annular floating plate floats on the surface of the water to be tested, which is used to limit the placement depth of the all-in-one water quality sensor.
[0012] As a further embodiment of this utility model: the clamping unit includes an arc-shaped pressure plate, an arc-shaped connecting plate, a straight groove connector, and a semi-circular rubber pressure block;
[0013] Two arc-shaped pressure plates are symmetrically arranged around the fixed cylindrical column. The two arc-shaped connecting plates are respectively fixed to the top of the two arc-shaped pressure plates and have different heights. The two straight groove connectors are fixed to the top of the two arc-shaped connecting plates and are staggered vertically.
[0014] The two semi-circular rubber blocks are symmetrically attached to the outside of the cable, and the two straight groove connectors are respectively sleeved on the outside of the two semi-circular rubber blocks and fixed to each other on their respective sides.
[0015] The relative position of the annular floating roof and the cable is fixed by the squeezing friction between the semi-circular rubber block and the outer wall of the cable.
[0016] As a further improvement of this utility model, the clamping unit also includes a side T-slot and a W-shaped spring sheet;
[0017] The side T-slots are symmetrically formed at both ends of the outer wall of the fixed cylinder. There are two W-shaped spring pieces. The two W-shaped spring pieces are respectively fixed to the inner side of the two arc-shaped pressure plates. The two W-shaped spring pieces are respectively inserted into and pass through the two side T-slots and are tightly fitted to the inner side of the other arc-shaped pressure plate.
[0018] As a further improvement of this utility model: the height of the middle part of the W-shaped spring sheet matches the height of the inner wall of the side T-shaped groove, and the arc-shaped pressure plate and the connected straight groove connector are located on both sides of the cable.
[0019] As a further embodiment of this utility model: the inner wall diameter of the annular floating plate and the fixed cylinder is larger than the outer diameter of the cable, and the bottom of the annular floating plate and the inner ring edge of the top of the fixed cylinder have an arc surface structure.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] By setting up a depth positioning component and adjusting its movement along the cable surface, the insertion depth of the multi-functional water quality sensor can be controlled, making the overall operation simple and convenient. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a structural distribution diagram of the depth positioning component and cable of this utility model;
[0024] Figure 3 This is a cross-sectional view of the depth positioning component of this utility model;
[0025] Figure 4 This is a schematic diagram showing the disassembled depth positioning component of this utility model.
[0026] In the diagram: 1. Portable water quality monitor; 101. Main unit; 102. Cable; 103. Multi-functional water quality sensor; 2. Depth positioning component; 201. Annular float; 202. Fixed column; 203. Side T-slot; 204. Arc-shaped pressure plate; 205. Arc-shaped connecting plate; 206. Straight groove connector; 207. Semi-circular rubber pressure block; 208. W-shaped spring. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-4 In this embodiment of the utility model, a water quality monitor includes a portable water quality monitor 1 consisting of a host 101, a cable 102, and a multi-functional water quality sensor 103. The multi-functional water quality sensor 103 is electrically connected to the sensor interface of the host 101 via the cable 102. A depth positioning component 2 is provided on the outside of the cable 102. When the multi-functional water quality sensor 103 is placed into the water to be tested, the depth positioning component 2 provides a pulling force to the multi-functional water quality sensor 103 to limit the placement depth of the multi-functional water quality sensor 103.
[0029] The depth positioning component 2 includes a buoyancy unit and a clamping unit. The buoyancy unit floats on the surface of the water to be measured and provides tension to the all-in-one water quality sensor 103. The clamping unit is used to provide clamping force between the buoyancy unit and the cable 102 and to realize the position adjustment operation of the buoyancy unit.
[0030] The buoyancy unit includes an annular floating disc 201 and a fixed cylindrical column 202;
[0031] The fixed cylinder 202 is fixed to the top of the annular floating plate 201. The annular floating plate 201 and the fixed cylinder 202 are sleeved on the outside of the cable 102. The clamping unit is distributed on the outside of the fixed cylinder 202 and clamps the outer wall of the cable 102.
[0032] The annular float 201 floats on the surface of the water to be tested, which is used to limit the placement depth of the all-in-one water quality sensor 103.
[0033] The clamping unit includes a side T-slot 203, an arc-shaped pressure plate 204, an arc-shaped connecting plate 205, a straight groove connector 206, a semi-circular rubber pressure block 207, and a W-shaped spring sheet 208;
[0034] Two arc-shaped pressure plates 204 are symmetrically arranged around the fixed cylinder column 202. Two arc-shaped connecting plates 205 are fixed to the top of the two arc-shaped pressure plates 204 respectively and at different heights. Two straight groove connectors 206 are fixed to the top of the two arc-shaped connecting plates 205 and are distributed vertically in a staggered manner.
[0035] Two semi-circular rubber blocks 207 are symmetrically attached to the outside of the cable 102, and the two straight groove connectors 206 are respectively sleeved on the outside of the two semi-circular rubber blocks 207 and fixed to each other on their respective sides.
[0036] The relative position of the annular floating disc 201 and the cable 102 is fixed by the squeezing friction between the semi-circular rubber pressure block 207 and the outer wall of the cable 102;
[0037] The side T-slots 203 are symmetrically formed at both ends of the outer wall of the fixed cylinder column 202. Two W-shaped spring pieces 208 are provided. The two W-shaped spring pieces 208 are respectively fixed to the inner side of the two arc-shaped pressure plates 204. The two W-shaped spring pieces 208 are respectively inserted into and pass through the two side T-slots 203 and are tightly fitted to the inner side of the other arc-shaped pressure plate 204.
[0038] The height of the middle part of the W-shaped spring 208 matches the height of the inner wall of the side T-shaped groove 203, and the arc-shaped pressure plate 204 and the connected straight groove connector 206 are located on both sides of the cable 102.
[0039] In this embodiment, it should be noted that the portable water quality monitor 1 is a common model of portable multi-parameter water quality monitor on the market (such as the AMT-YB101 model). Therefore, the specific detection principle of the portable water quality monitor 1 will not be elaborated here.
[0040] When conducting water quality testing, the multi-functional water quality sensor 5 needs to be placed into the water to be tested. At this time, the depth positioning component 2 can be adjusted to control the placement depth of the multi-functional water quality sensor 5. The operation method is as follows:
[0041] One hand grips the cable 102, while the other hand grips the two arc-shaped pressure plates 204, bringing the two arc-shaped pressure plates 204 closer together and squeezing the W-shaped spring sheet 208 to further deform and shrink. The close proximity of the two arc-shaped pressure plates 204 can cause the two semi-circular rubber pressure blocks 207 to move away from each other and separate from the surface of the cable 102, thus releasing the clamping of the cable 102.
[0042] At this point, the depth positioning component 2 can be moved to a suitable position along the surface of the cable 102 (it should be noted that a scale can be marked on the surface of the cable 102 to indicate the height distance from the lower surface of the annular float 201 to the bottom of the multi-in-one water quality sensor 103, so as to quickly determine the depth of the multi-in-one water quality sensor 103 after it is placed into the water to be tested). Then, release the grip on the arc-shaped pressure plate 204. The two arc-shaped pressure plates 204 will reset under the elastic force of the W-shaped spring 208. The two semi-circular rubber pressure blocks 207 will approach each other and fit tightly against the surface of the cable 102, thus fixing the position of the annular float 201.
[0043] After the multi-in-one water quality sensor 103 is placed into the water to be tested, its annular float 201 floats on the surface of the water to be tested, thus limiting the depth of the multi-in-one water quality sensor 103 (it should be noted that the buoyancy of the annular float 201 is greater than the total weight of the multi-in-one water quality sensor 103 and the cable 102).
[0044] Please refer to this carefully. Figure 3 The inner diameter of the annular floating roof 201 and the fixed column 202 is larger than the outer diameter of the cable 102. The bottom of the annular floating roof 201 and the inner edge of the top of the fixed column 202 have an arc surface structure.
[0045] In this embodiment: This structure ensures that the depth positioning component 2 will not cause frictional damage to the surface of the cable 102 when it is moved and adjusted.
[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A water quality monitoring instrument, comprising a portable water quality monitoring instrument (1) consisting of a main unit (101), a cable (102), and a multi-functional water quality sensor (103), wherein the multi-functional water quality sensor (103) is electrically connected to the sensor interface of the main unit (101) via the cable (102), characterized in that, A depth positioning component (2) is provided on the outside of the cable (102). When the multi-in-one water quality sensor (103) is placed into the water to be tested, the depth positioning component (2) provides a pulling force to the multi-in-one water quality sensor (103) to limit the placement depth of the multi-in-one water quality sensor (103). The depth positioning component (2) includes a buoyancy unit and a clamping unit; The buoyancy unit floats on the surface of the water to be measured, providing tension to the all-in-one water quality sensor (103); The clamping unit is used to provide clamping force between the buoyancy unit and the cable (102) and to realize the position adjustment operation of the buoyancy unit.
2. The water quality monitoring instrument according to claim 1, characterized in that, The buoyancy unit includes an annular float (201) and a fixed cylindrical column (202); The fixed cylinder (202) is fixed to the top of the annular floating plate (201). The annular floating plate (201) and the fixed cylinder (202) are sleeved on the outside of the cable (102). The clamping unit is distributed on the outside of the fixed cylinder (202) and clamps the outer wall of the cable (102). The annular float (201) floats on the surface of the water to be tested, thereby limiting the placement depth of the all-in-one water quality sensor (103).
3. A water quality monitoring instrument according to claim 2, characterized in that, The clamping unit includes an arc-shaped pressure plate (204), an arc-shaped connecting plate (205), a straight groove connector (206), and a semi-circular rubber pressure block (207). Two arc-shaped pressure plates (204) are symmetrically arranged around the fixed cylinder column (202). Two arc-shaped connecting plates (205) are fixed to the top of the two arc-shaped pressure plates (204) respectively and have different heights. Two straight groove connectors (206) are fixed to the top of the two arc-shaped connecting plates (205) and are staggered vertically. The two semi-circular rubber blocks (207) are symmetrically attached to the outside of the cable (102), and the two straight groove connectors (206) are respectively sleeved on the outside of the two semi-circular rubber blocks (207) and fixed to each other on the side that is close to each other; The relative position of the annular floating disc (201) and the cable (102) is fixed by the squeezing friction between the semi-circular rubber block (207) and the outer wall of the cable (102).
4. A water quality monitoring instrument according to claim 2, characterized in that, The clamping unit also includes a side T-slot (203) and a W-shaped spring (208); The side T-slots (203) are symmetrically formed on both ends of the outer wall of the fixed cylinder (202). There are two W-shaped spring pieces (208). The two W-shaped spring pieces (208) are respectively fixed to the inner side of the two arc-shaped pressure plates (204). The two W-shaped spring pieces (208) are respectively inserted into and pass through the two side T-slots (203) and are tightly fitted to the inner side of the other arc-shaped pressure plate (204).
5. A water quality monitoring instrument according to claim 4, characterized in that, The height of the middle part of the W-shaped spring (208) matches the height of the inner wall of the side T-shaped groove (203), and the arc-shaped pressure plate (204) and the connected straight groove connector (206) are located on both sides of the cable (102).
6. A water quality monitoring instrument according to claim 2, characterized in that, The inner diameter of the annular floating disc (201) and the fixed cylinder (202) is greater than the outer diameter of the cable (102). The bottom of the annular floating disc (201) and the inner edge of the top of the fixed cylinder (202) have an arc surface structure.