A dissolved oxygen sensor

Abstract

The utility model discloses a kind of dissolved oxygen sensors, including sensor body, the side fixed mounting of sensor body has adapter, the inside of the adapter is provided with data line, the end portion power supply of the data line is connected with sensing head, the outer surface of the sensing head is sleeved with protective shell, the one end of the protective shell is rotatably connected with cover. The utility model is through the setting of sensor body, data line, floating plate and sensing head, when measuring personnel needs to measure dissolved oxygen data at specified water source, measuring personnel can make it slide floating plate along data line according to the different water source depth of measurement, and immediately positioning spring drives arc card to be quickly connected with specified position, so that its sensing head is thrown into water source, floating plate will drive sensing head to float vertically downward in water source, to reduce sensing head insertion inside silt, cause the inaccuracy of dissolved oxygen measurement data to occur.

Description

Technical Field

[0001] This utility model relates to the field of dissolved oxygen sensor technology, and in particular to a dissolved oxygen sensor. Background Technology

[0002] A dissolved oxygen sensor is a precision instrument used to measure the concentration of dissolved oxygen in water. Its working principle is based on electrochemical or optical technology. By having a probe contact the water sample, it detects in real time the diffusion current or fluorescence quenching effect of oxygen molecules passing through a thin film, converting the dissolved oxygen content into an electrical signal output. The sensor typically consists of a breathable membrane, electrodes (such as gold cathodes and silver anodes), an electrolyte, and a signal processing module. It can adapt to different temperature, salinity, and pressure environments and is widely used in water quality monitoring, aquaculture, wastewater treatment, industrial process control, and environmental research. It features fast response, high measurement accuracy, and strong stability. Some models also support automatic temperature compensation and calibration functions to ensure long-term reliable use.

[0003] Currently, the sensor head is easily affected by water depth and bottom silt during measurement. When detecting water at different depths, the sensor usually relies on manual hand-holding or simple fixation, which makes it difficult to ensure that the sensor head is vertically suspended in the water. It is easy to cause the dissolved oxygen data to be distorted due to touching the bottom and inserting into the silt. Therefore, those skilled in the art provide a dissolved oxygen sensor to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dissolved oxygen sensor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A dissolved oxygen sensor includes a sensor body, a connector fixedly mounted on one side of the sensor body, a data cable disposed inside the connector, a sensor head being poweredly connected to the end of the data cable, a protective shell sleeved on the outer surface of the sensor head, a cover rotatably connected to one end of the protective shell, a sponge disposed on one side inside the cover, a floating ring slidably connected to one side of the surface of the data cable, a floating plate fixedly connected to one side of the surface of the floating ring, and a positioning component disposed inside the floating plate.

[0006] As a further embodiment of this utility model, the positioning component includes a positioning spring and an arc-shaped card. Circular grooves are provided on both sides inside the floating plate. A positioning spring is fixedly connected to the inner bottom wall of the circular groove. An arc-shaped card is fixedly installed at the end of the positioning spring. Both the positioning spring and the arc-shaped card are provided in two sets.

[0007] As a further embodiment of this utility model, the sensor head has an insertion slot inside, and a sensing rod is inserted into the insertion slot.

[0008] As a further improvement of this utility model, a sealing block is provided at the connection between the data cable and the sensor head, and the sealing block is made of resin.

[0009] As a further embodiment of this utility model, a square groove is provided on one side of the bottom of the sensor body, a hinge is provided inside the square groove, and a grooved plate is hinged to one side of the hinge.

[0010] As a further embodiment of this invention, a display is embedded on one side of the top surface of the sensor body, and a control button is provided adjacent to the display.

[0011] As a further embodiment of this utility model, a connecting block is fixedly connected to one side of the sensor body, and a constraint strap is provided on one side of the connecting block.

[0012] As a further embodiment of this utility model, a sub-hook and loop fastener is provided on one side of the surface of the restraint strap, and a female hook and loop fastener adapted to the sub-hook and loop fastener is provided on the other side of the sensor body.

[0013] The beneficial effects of this utility model are as follows: 1. By configuring the sensor body, data cable, float plate, and sensor head, when the measurement personnel need to measure dissolved oxygen data at a designated water source, they can slide the float plate upwards along the data cable according to the different depths of the water source. Then, the positioning spring drives the arc-shaped card to quickly lock into the designated position, allowing the sensor head to be dropped into the water source. The float plate will then drive the sensor head to float vertically downwards in the water source, thereby reducing the possibility of the sensor head inserting into the silt and causing inaccurate dissolved oxygen measurement data.

[0014] 2. By using the sensor head, protective shell, cover, and sponge body, after the dissolved oxygen measurement personnel have finished measuring the water source, when the sensor is not in use, the protective shell and cover can be placed on the end and outer surface of the sensor head. The sponge body contains water, which keeps the end of the sensor head moist when not in use, thus effectively maintaining the sensor head. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a dissolved oxygen sensor proposed in this utility model; Figure 2 This is a schematic diagram of the second-view structure of a dissolved oxygen sensor proposed in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the sensing head of a dissolved oxygen sensor proposed in this utility model. Figure 4This is a schematic diagram of the cross-sectional structure of the floating plate of a dissolved oxygen sensor proposed in this utility model.

[0016] In the diagram: 1. Sensor body; 2. Connector; 3. Data cable; 4. Sensor head; 5. Protective shell; 6. Cover; 7. Sponge body; 8. Floating ring; 9. Floating plate; 10. Positioning component; 101. Positioning spring; 102. Arc-shaped card; 11. Sensing rod; 12. Sealing block; 13. Groove card plate; 14. Display; 15. Control button; 16. Connecting block; 17. Restraint strap. Detailed Implementation

[0017] 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. It should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection", and "setting" should be interpreted broadly. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0018] Reference Figures 1-4 A dissolved oxygen sensor includes a sensor body 1, a connector 2 fixedly mounted on one side of the sensor body 1, a data cable 3 inside the connector 2, a sensor head 4 connected to the power supply at the end of the data cable 3, a protective shell 5 sleeved on the outer surface of the sensor head 4, a cover 6 rotatably connected to one end of the protective shell 5, a sponge 7 inside the cover 6, and a insertion groove inside the sensor head 4, into which a sensing rod 11 is inserted.

[0019] After the water source testing personnel have completed the dissolved oxygen data testing, when the sensor head 4 and sensing rod 11 are not in use, the personnel can place the protective shell 5 on the outer surface of the sensor head 4, then wet the sponge 7, and place the cover 6 at the end of the protective shell 5, so that the sponge 7 touches the end of the sensing rod 11, keeping the sensing rod 11 moist, thus facilitating the personnel to maintain the sensing rod 11.

[0020] In this utility model, a floating ring 8 is slidably connected to one side of the surface of the data cable 3, and a floating plate 9 is fixedly connected to one side of the surface of the floating ring 8. A positioning component 10 is provided inside the floating plate 9. The positioning component 10 includes a positioning spring 101 and an arc-shaped card 102. Circular grooves are provided on both sides inside the floating plate 9. The positioning spring 101 is fixedly connected to the inner bottom wall of the circular groove. An arc-shaped card 102 is fixedly installed at the end of the positioning spring 101. There are two sets of positioning spring 101 and arc-shaped card 102.

[0021] With the positioning component 10, the floating plate 9, and the floating ring 8, when the testing personnel are testing the dissolved oxygen data at the designated water source, they can slide the floating ring 8 and the floating plate 9 up or down along the data line 3 according to the depth of the water source. Then, the positioning spring 101 drives the arc-shaped card 102 to be respectively locked on both sides of the outer surface of the data line 3, so that the sensor head 4 is kept upright in the water source, reducing the possibility that the sensor head 4 is directly inserted into the silt of the water source, which would cause the sensing rod 11 to detect the dissolved oxygen data of the water source inaccurately.

[0022] In particular, a sealing block 12 is provided at the connection between the data cable 3 and the sensor head 4, and the sealing block 12 is made of resin.

[0023] The sealing block 12 improves the sealing between the data cable 3 and the sensor head 4.

[0024] In particular, a square groove is provided on one side of the bottom of the sensor body 1, and a hinge is provided inside the square groove. A grooved card plate 13 is hinged to one side of the hinge. With the hinge and grooved plate 13, when the sensor body 1 is not in use, the personnel can coil or clip the data cable 3 inside the grooved plate 13 in a serpentine shape, which facilitates the personnel to organize the data cable 3.

[0025] In particular, a display 14 is embedded on one side of the top surface of the sensor body 1, and a control button 15 is provided next to the display 14. A connecting block 16 is fixedly connected to one side of the sensor body 1, and a restraint strap 17 is provided on one side of the connecting block 16. A sub-hook and loop fastener is provided on one side of the surface of the restraint strap 17, and a female hook and loop fastener that matches the sub-hook and loop fastener is provided on the other side of the sensor body 1.

[0026] By using the constraint strap 17 and the female Velcro, when the inspector is tidying up the data cable 3, the inspector can use the constraint strap 17 to attach one end of the cable to the surface of the female Velcro on the other side of the sensor body 1 using the female Velcro, so that the data cable 3 inside the groove plate 13 can be fixed, thus facilitating the tidying up of the data cable 3.

[0027] Working principle: When the testing personnel are testing the dissolved oxygen data of a designated water source, they can remove the data cable 3 from the surface of the grooved plate 13. Then, the float ring 8 and float plate 9 can be slid up or down along the data cable 3 to position the float plate 9. The positioning spring 101 and the arc-shaped clip 102 are used to fix the float plate 9 to the appropriate position on the surface of the data cable 3, allowing the sensor head 4 to be placed inside the water source and vertically suspended. This prevents the sensor head 4 and the sensing rod 11 from directly inserting into the silt inside the water source, thus ensuring proper positioning. This improves the accuracy of dissolved oxygen data in water sources and eliminates the need for personnel to hold the data cable 3 for measurement. The sensing rod 11 and the sensing head 4 then display the detected data on the surface of the display 14. After the test is completed, the personnel can attach the protective shell 5 and the cover 6 to the outer surface of the sensing head 4 and the end of the sensing rod 11, respectively. The sponge 7 inside the cover 6 contains moisture, which keeps the end of the sensing rod 11 moist for a long time, thus facilitating the effective maintenance of the sensing head 4 and extending its service life.

[0028] In this application, the structures and connections not described in detail are all prior art, and their structures and principles are well known, so they will not be described in detail here.

[0029] 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 dissolved oxygen sensor, comprising a sensor body (1), characterized in that, A connector (2) is fixedly installed on one side of the sensor body (1). A data cable (3) is provided inside the connector (2). A sensor head (4) is connected to the power supply at the end of the data cable (3). A protective shell (5) is fitted on the outer surface of the sensor head (4). A cover (6) is rotatably connected to one end of the protective shell (5). A sponge (7) is provided on one side inside the cover (6). A floating ring (8) is slidably connected to one side of the surface of the data cable (3). A floating plate (9) is fixedly connected to one side of the surface of the floating ring (8). A positioning component (10) is provided inside the floating plate (9).

2. A dissolved oxygen sensor according to claim 1, characterized in that, The positioning component (10) includes a positioning spring (101) and an arc-shaped card (102). Circular grooves are provided on both sides inside the floating plate (9). The positioning spring (101) is fixedly connected to the inner bottom wall of the circular groove. An arc-shaped card (102) is fixedly installed at the end of the positioning spring (101). The positioning spring (101) and the arc-shaped card (102) are both set in two sets.

3. A dissolved oxygen sensor according to claim 1, characterized in that, The sensor head (4) has an insertion slot inside, and a sensing rod (11) is inserted into the insertion slot.

4. A dissolved oxygen sensor according to claim 1, characterized in that, A sealing block (12) is provided at the connection between the data cable (3) and the sensor head (4), and the sealing block (12) is made of resin.

5. A dissolved oxygen sensor according to claim 1, characterized in that, A square groove is provided on one side of the bottom of the sensor body (1), and a hinge is provided inside the square groove. A grooved plate (13) is hinged to one side of the hinge.

6. A dissolved oxygen sensor according to claim 1, characterized in that, A display (14) is embedded on one side of the top surface of the sensor body (1), and a control button (15) is provided next to the display (14).

7. A dissolved oxygen sensor according to claim 1, characterized in that, A connecting block (16) is fixedly connected to one side of the sensor body (1), and a restraint strap (17) is provided on one side of the connecting block (16).

8. A dissolved oxygen sensor according to claim 7, characterized in that, A sub-hook and loop fastener is provided on one side of the surface of the restraint strap (17), and a female hook and loop fastener adapted to the sub-hook and loop fastener is provided on the other side of the sensor body (1).

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