Dissolved oxygen content detector
The dissolved oxygen level is detected and automatically cleaned by controlling the rotation of the detection tube with a servo motor. Combined with a power supply module and a communication module, it enables unattended monitoring, solving the problems of manual operation and tube cleaning required by existing dissolved oxygen meters, and improving the stability and applicability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG UNIV OF TECH
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-10
AI Technical Summary
Existing dissolved oxygen meters require manual operation, making unattended testing impossible, and the test tubes need to be cleaned regularly, which is inconvenient.
The system uses a servo motor to control the rotation of the detection tube at regular intervals to detect dissolved oxygen levels, and a brush is used to automatically clean the detection tube. Combined with a power supply module and a communication module, it enables data transmission to the cloud. A waterproof shell and a spherical crown counterweight are designed to improve stability.
It enables unattended monitoring of dissolved oxygen content in water, automatically cleans the detection tube, improves equipment stability and reliability, and is suitable for various aquatic environments.
Smart Images

Figure CN224109340U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dissolved oxygen measurement equipment technical field, especially to a kind of dissolved oxygen content detector. BACKGROUND
[0002] With the rapid development of today's world industry, agriculture, fishery, a large number of industrial wastewater, farmland drainage is discharged to river, lake and sea, at the same time, about 80% of China's municipal sewage is directly discharged without treatment, and most of the sewage in small towns and rural areas is in a state of disorderly discharge, which makes the water quality in many places deteriorate, water pollution and water shortage become increasingly serious, so it is urgent to monitor and effectively treat sewage, among them, dissolved oxygen content in water is an important indicator when monitoring water quality, and the existing instrument is complex, various, troublesome to operate, and cannot be used for a long time, so it needs to replace detection equipment regularly, for example, Cui Kai discloses a dissolved oxygen detector for sewage detection in Chinese patent CN219039020U. The dissolved oxygen meter has the ingenious feature that the back surface is provided with a storage assembly, the storage assembly includes a storage wheel disc, and the detection lead is wound inside the storage wheel disc. Through this feature, the problem of winding of the detection lead due to excessive length during detection and ineffective storage after detection is solved. However, the dissolved oxygen meter needs manual detection tube to measure in water. Since the detection tube is in water for a long time, stains are easily attached to the detection tube, and the user needs to stay near the detection instrument during detection. Therefore, the dissolved oxygen meter is not convenient to use, cannot realize unattended detection, and needs manual cleaning of the detection tube. SUMMARY
[0003] The utility model aims at providing a dissolved oxygen content detector which can realize unattended detection of dissolved oxygen content in water and automatically clean the detection end of the detection tube.
[0004] To achieve the above-mentioned purpose, the utility model provides a dissolved oxygen content detector, which comprises a waterproof shell, a power supply module, a communication module, a lead and a servo motor are arranged on the left waterproof bottom plate, and a counterweight is arranged on the right waterproof bottom plate.
[0005] A gap is arranged between the left waterproof bottom plate and the right waterproof bottom plate, a detection tube is arranged above the gap, the two ends of the detection tube are detection ends and are provided with fluorescent sensors, the lower end of the detection tube can be immersed in water through the gap, a lead sleeve is arranged in the middle of the detection tube, the output shaft end of the servo motor is connected with the detection tube through the lead sleeve for rotating the detection tube, the lead is connected with the fluorescent sensors at the two ends of the detection tube through the lead sleeve, and the communication module is connected with the fluorescent sensors through the lead.
[0006] The power input end of the servo motor and the communication module is connected with the output end of the power supply module, the inner wall of the waterproof shell above the interval of the left waterproof bottom plate and the right waterproof bottom plate is provided with brushes for cleaning the detection ends of both ends of the detection tube, and the detection ends of both ends of the detection tube can contact the brushes when rotating.
[0007] Preferably, a solar panel is further installed outside the waterproof shell, the waterproof shell at the back of the solar panel is provided with an opening, and the solar panel is connected with the storage battery in the power supply module through the opening by using a waterproof cable.
[0008] Preferably, the communication module is in communication connection with a cloud system.
[0009] Preferably, left and right partition plates are arranged between the left and right spherical caps, the upper ends of the left and right partition plates are connected with the top inner wall of the waterproof shell respectively and the lower ends are connected with the left waterproof bottom plate and the right waterproof bottom plate respectively, and the left partition plate is provided with an opening for accommodating the output shaft end of the servo motor and wires.
[0010] Preferably, upper and lower air vents are sequentially arranged on the upper and lower sides of the outer sides of the waterproof shell, an upper waterproof cover is installed on the upper air vent, and a lower waterproof cover is installed on the lower air vent.
[0011] Preferably, a bowl-shaped filter screen is further connected below the waterproof shell.
[0012] Preferably, the wires are made of waterproof soft material.
[0013] Preferably, the wires have a length margin and can be stretched and retracted with the rotation of the detection tube.
[0014] Preferably, the detection end of the detection tube immersed in water is used for detecting a water area with a depth of 20-30 cm.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] The utility model discloses a servo motor control detection tube rotates regularly to detect the dissolved oxygen content in water and utilizes the brush to automatically clean the detection tube when rotating, without manual cleaning, and the power supply module and the communication module are combined to carry out cloud data transmission, realize the unattended dissolved oxygen content monitoring of water area, and the left and right spherical cap counterweight design and the waterproof shell design further improve the stability and reliability of the equipment, and are suitable for various water environments. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the appearance schematic view of the utility model in the application after removing the bowl-shaped filter screen;
[0018] Figure 2 It is the front view of the utility model in the application after removing the rubber ring.
[0019] Figure 3 is a front view of the present application without the right spherical cap;
[0020] Figure 4 is a schematic view of another perspective of the present application without the right spherical cap;
[0021] Figure 5 is a schematic view of the left spherical cap portion and the bowl-shaped filter screen of the present application;
[0022] Figure 6 is a schematic view of the right spherical cap portion and the bowl-shaped filter screen of the present application;
[0023] Figure 7 is a schematic view of the present application with the left partition plate;
[0024] Figure 8 is a schematic view of the present application with the right partition plate;
[0025] BRIEF DESCRIPTION OF DRAWINGS
[0026] 1. waterproof housing; 2. solar panel; 3. sealing rubber ring; 4. lower waterproof cover; 5. upper waterproof cover; 6. bowl-shaped filter screen; 7. upper air vent; 8. lower air vent; 9. brush; 10. detection tube; 11. left waterproof bottom plate; 12. wire sleeve; 13. power supply module; 14. communication module; 15. wire; 16. servo motor; 17. counterweight; 18. right waterproof bottom plate; 19. left partition plate; 20. right partition plate DETAILED DESCRIPTION
[0027] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.
[0028] In the description of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0029] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning of the utility model according to specific circumstances.
[0030] Embodiment 1
[0031] Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 And Figure 6 , the utility model provides a dissolved oxygen detection instrument, including:
[0032] Waterproof shell 1, including left and right spherical cap and bottom respectively are equipped with left waterproof bottom plate 11 and right waterproof bottom plate 18, left waterproof bottom plate 11 is equipped with power module 13, communication module 14, wire 15 and servo motor 16, and right waterproof bottom plate 18 is equipped with counterweight 17;
[0033] Left waterproof bottom plate 11 and right waterproof bottom plate 18 are equipped with interval, and the detection tube 10 is equipped above interval, and the detection tube 10 both ends are detection end and are equipped with fluorescent sensor, and the lower end of detection tube 10 can be immersed in water through interval, and the wire sleeve 12 is equipped in the middle part of detection tube 10, and the output shaft end of servo motor 16 is connected with detection tube 10 through wire sleeve 12 and is used to drive detection tube 10 to rotate, and wire 15 is connected with fluorescent sensor both ends of detection tube 10 through wire sleeve 12, and communication module 14 is connected with fluorescent sensor through wire 15;
[0034] The power input end of servo motor 16 and communication module 14 is connected with the output end of power module 13, and servo motor 16 is used to drive detection tube 10 to rotate the preset angle and rotate the same angle in the reverse direction after the same timing and reset and cycle, and the inner wall both sides of waterproof shell 1 above the interval of left waterproof bottom plate 11 and right waterproof bottom plate 18 are equipped with brush 9 for cleaning the both ends of detection tube 10. The fluorescent sensor in the detection end of the end of detection tube 10 under water after each rotation carries out detection or timed detection multiple times to the dissolved oxygen content in water, and communication module 14 is connected with cloud system communication and real-time detection data transmission to cloud system, and users can use mobile phone or computer and other communication equipment to check detection data.
[0035] In a preferred embodiment, the outer part of the waterproof shell 1 is also provided with a solar panel 2, and the waterproof shell 1 at the back of the solar panel 2 is provided with an opening through which the solar panel 2 transmits electric energy to the storage battery in the power supply module 13 through a waterproof cable, so that the automatic detection can be realized for a relatively long period of time without manual operation, and it is more environmentally friendly.
[0036] Please refer to Figure 7 and Figure 8 The left and right spherical caps are provided with a left partition plate 19 and a right partition plate 20, the upper ends of the left and right partition plates 19 and 20 are connected with the inner wall of the top of the waterproof shell 1 respectively, and the lower ends are connected with the left waterproof bottom plate 11 and the right waterproof bottom plate 18 respectively, and the left partition plate 19 is provided with an opening through which the output shaft end of the servo motor 16 and the wire 15 pass. The left and right partition plates can effectively prevent water from splashing into the left and right spherical caps when the detection tube rotates.
[0037] Please refer to Figure 3 The upper and lower sides of the outer part of the waterproof shell 1 are provided with an upper air hole 7 and a lower air hole 8 in sequence, the upper air hole 7 is provided with an upper waterproof cover 5, and the lower air hole 8 is provided with a lower waterproof cover 4, the upper and lower air holes are used for ventilation and heat dissipation, and the upper and lower waterproof covers are used for preventing rainwater from entering the inside of the instrument.
[0038] Embodiment 2
[0039] This embodiment 2 is based on embodiment 1, and the process that the servo motor drives the detection tube to detect and use the brush to clean in the dissolved oxygen detector in embodiment 1 is described.
[0040] In this embodiment 2, the servo motor 16 drives the detection tube 10 to rotate clockwise by 180° every hour, and then detects the dissolved oxygen content in water every 20 minutes, and after one hour, the detection tube 10 is driven to rotate counterclockwise by 180° to reset, and the cycle is repeated, and the data of each detection is transmitted to the cloud system through the communication module. It should be noted that the timing of rotation or detection can be adjusted by the servo motor or the fluorescent sensor.
[0041] When the servo motor 16 drives the detection tube 10 to rotate each time, the two ends of the detection tube can contact the brush 9 on the inner wall of the waterproof shell, so that the surfaces of the two ends of the detection tube 10 are cleaned synchronously.
[0042] The outer part of the wire 15 is made of waterproof soft material, and the length of the wire 15 has a margin, which can stretch and contract with the rotation of the detection tube 10, so as to avoid that the wire is pulled too hard and straightened, which causes damage to the circuit inside the dissolved oxygen detector.
[0043] Embodiment 3
[0044] Please refer to Figure 1 and Figure 2, the embodiment 3 based on embodiment 1 and embodiment 2, further increase part structure, as follows:
[0045] In this embodiment 3, the lower part of waterproof shell 1 is also connected with bowl-shaped filter screen 6, the bowl-shaped filter screen can filter out most of the substances affecting the dissolved oxygen measurement in water in advance, and reduce the cleaning pressure of the detection end of the detection tube.
[0046] In this embodiment 3, the outer periphery of the connection between waterproof shell 1 and bowl-shaped filter screen 6 is also provided with sealing rubber ring 3, which can strengthen the sealing of the connection between waterproof shell and bowl-shaped filter screen, prevent water from entering the waterproof shell, and also provide certain buoyancy to make part of the waterproof shell exposed to the water surface.
[0047] The dissolved oxygen detector in this embodiment 3 is suitable for relatively shallow water area of 20cm to 30cm, if it is necessary to measure the dissolved oxygen content in deeper water, it can be used with water pump.
[0048] According to the above embodiments, the dissolved oxygen detector in the present application can automatically clean the detection tube by rotating the detection tube at regular intervals and using a brush to clean the detection tube during rotation, without the need for manual cleaning. The device can perform cloud data transmission by combining the power supply module and the communication module, and can realize unattended dissolved oxygen content monitoring in water area by rotating at regular intervals. The left and right spherical crown counterweight design and the waterproof shell design further improve the stability and reliability of the device, and the device is suitable for various water environments. During use, the dissolved oxygen detector can be charged by a solar panel, and the battery does not need to be replaced manually. The device can stay in water for a long time, and the user does not need to take it out of the water frequently, which will not affect the user's normal life.
[0049] The above is the preferred embodiment of the present application, it should be pointed out, for those skilled in the ordinary technical personnel in this technical field, without departing from the principle of the present application, under the premise of, can make a number of improvement and adornment, these improvement and adornment also should be regarded as the protection scope of the present application.
Claims
1. A dissolved oxygen detector, characterized in that, The utility model relates to a waterproof shell (1) is provided with left and right spherical caps, and the bottom of left and right spherical caps is respectively provided with left waterproof bottom plate (11) and right waterproof bottom plate (18), left waterproof bottom plate (11) is provided with power module (13), communication module (14), wire (15) and servo motor (16), right waterproof bottom plate (18) is provided with counterweight (17), and the utility model relates to a kind of waterproof shell (1), which is characterized by comprising: The left waterproof bottom plate (11) and the right waterproof bottom plate (18) are provided with a gap, and a detection tube (10) is arranged above the gap. The detection tube (10) is provided with a fluorescent sensor at both ends, and the lower end of the detection tube (10) can be immersed in water through the gap. The middle of the detection tube (10) is provided with a wire sleeve (12). The output shaft of the servo motor (16) is connected to the detection tube (10) through the wire sleeve (12) to rotate the detection tube (10). The wire (15) is connected to the fluorescent sensor at both ends of the detection tube (10) through the wire sleeve (12). The communication module (14) is connected to the fluorescent sensor through the wire (15). The power input end of the servo motor (16) and the communication module (14) is connected to the output end of the power module (13). The inner wall of the waterproof shell (1) above the gap between the left waterproof bottom plate (11) and the right waterproof bottom plate (18) is provided with a brush (9) for cleaning the detection end of both ends of the detection tube (10). The detection end of both ends of the detection tube (10) can contact the brush (9) when rotating. The outer part of the waterproof shell (1) is also provided with a solar panel (2). The waterproof shell (1) at the back of the solar panel (2) is provided with an opening. The solar panel (2) is connected to the battery in the power module (13) through the opening using a waterproof cable.
2. The dissolved oxygen meter according to claim 1, wherein The communication module (14) is connected to a cloud system.
3. The dissolved oxygen meter according to claim 1, wherein The left and right spherical caps are provided with a left partition (19) and a right partition (20). The upper ends of the left partition (19) and the right partition (20) are connected to the top inner wall of the waterproof shell (1), and the lower ends are connected to the left waterproof bottom plate (11) and the right waterproof bottom plate (18), respectively. The left partition (19) is provided with an opening for accommodating the output shaft of the servo motor (16) and the wire (15).
4. The dissolved oxygen meter according to claim 1, wherein The outer part of the waterproof shell (1) is provided with an upper air hole (7) and a lower air hole (8) in sequence from top to bottom. The upper air hole (7) is provided with an upper waterproof cover (5). The lower air hole (8) is provided with a lower waterproof cover (4).
5. The dissolved oxygen meter according to claim 1, wherein The lower part of the waterproof shell (1) is also connected to a bowl-shaped filter screen (6).
6. The dissolved oxygen sensor of claim 1, wherein The periphery of the connection between the waterproof shell (1) and the bowl-shaped filter screen (6) is also provided with a sealing rubber ring (3).
7. The dissolved oxygen meter according to claim 6, wherein The outer part of the wire (15) is made of waterproof soft material.
8. The dissolved oxygen sensor of claim 1, wherein, The length of the wire (15) has a margin, which can stretch and contract with the rotation of the detection tube (10).
9. The dissolved oxygen meter according to claim 8, wherein The detection end of the detection tube (10) immersed in water is used to detect the dissolved oxygen content of water 20-30 cm deep.
10. The dissolved oxygen sensor of claim 1, wherein,
Citation Information
Patent Citations
Sewage detection dissolved oxygen tester
CN219039020U