Water quality detector with filtering function

Abstract

The utility model belongs to the technical field of water quality detectors, and particularly relates to a water quality detector with a filtering function, which comprises a handheld water quality detector body and a plug arranged at the top end of the handheld water quality detector body, the top end of the plug is connected with an electric wire, and the other end of the electric wire is connected with an electrode detection rod; the surface of the electrode detection rod is sleeved with a filtering shell, the top end of the filtering shell is connected with a positioning plate, the filtering shell is sleeved on the surface of the electrode detection rod, meanwhile, a movable plate on the side edge of the positioning plate is stretched, the filtering shell is stably sleeved on the surface of the electrode detection rod, and at the moment, the movable plate is loosened, so that the electrode detection rod is fixed. After the electrode detection rod is placed in a water quality sample to be detected, the filter shell and the filter holes filter leaves and large particle impurities in the water quality sample, so that the electrode detection rod is in direct contact with the water quality sample to be detected, and the water quality detection precision and sensitivity are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of water quality testing instruments, specifically relating to a water quality testing instrument with a filtration function. Background Technology

[0002] A handheld electrode water quality analyzer is a portable device used for water quality testing. It measures various water quality parameters, such as temperature, pH, dissolved oxygen, and conductivity, by having electrodes react with chemical substances in the water. This type of analyzer has wide applications in water quality monitoring, environmental protection, aquaculture, and chemical industries.

[0003] The working principle of handheld electrode water quality analyzers is primarily based on electrochemical principles. It utilizes the oxidation-reduction reaction or potential change between the electrode and chemical substances in the water sample. By measuring the electrical signals generated by these reactions or changes, and then processing and converting them through internal circuitry, the final water quality parameter values ​​are displayed. When personnel use water quality analyzers to perform detailed water quality testing, they may encounter interference from various substances in the sampled water. In particular, when leaves or larger particulate impurities are mixed in the sampled water, these impurities easily adhere to and adsorb onto the surface of the electrode probe. This adhesion and adsorption not only affects the direct contact between the electrode and the target chemical substances in the water but also interferes with the normal conduct of the electrochemical reaction, thus significantly reducing the measurement accuracy and sensitivity of the water quality analyzer. Utility Model Content

[0004] The purpose of this invention is to provide a water quality analyzer with a filtration function, aiming to solve the problem in existing water quality analyzers where, when leaves or larger particulate impurities are mixed in with the sampled water, these impurities easily adhere to and adsorb onto the surface of the electrode detection rod. This adhesion and adsorption not only affects the direct contact between the electrode and the target chemical substances in the water, but also interferes with the normal conduction of electrochemical reactions, thereby significantly reducing the measurement accuracy and sensitivity of the water quality analyzer.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water quality tester with a filtration function, comprising a handheld water quality tester body and a plug installed on the top of the handheld water quality tester body, wherein the top of the plug is connected to a wire and the other end of the wire is connected to an electrode detection rod.

[0006] A filter housing is fitted onto the surface of the electrode detection rod. A positioning plate is connected to the top of the filter housing. A movable plate is connected to one side of the positioning plate. An assembly plate is connected to the other end of the movable plate. A connecting plate is connected to the outside of the assembly plate. A positioning spring is connected to one side of the connecting plate. A guide block is connected to the end of the connecting plate near the positioning plate.

[0007] As a preferred embodiment of the water quality tester with filtration function of this utility model, the filter housing is made of PVC material, the surface of the filter housing has filter holes, and the assembly plate is made of plastic material.

[0008] In a preferred embodiment of the water quality testing instrument with filtration function according to this utility model, one end of the positioning spring relative to the connecting plate is connected to the inner wall of the positioning plate, and the positioning spring and the connecting plate form an elastic telescopic structure.

[0009] In a preferred embodiment of the water quality testing instrument with filtration function according to this utility model, the positioning plate has a guide groove on its inner wall near the guide block, and the guide block and the guide groove on the inner wall of the positioning plate form a sliding connection structure.

[0010] As a preferred embodiment of the water quality tester with filtration function of this utility model, a fixing block is connected to the back side of the handheld water quality tester body, a rotating shaft is connected to the inner side of the fixing block, a bushing is connected to the surface of the rotating shaft, and a support plate is connected to the surface of the bushing.

[0011] As a preferred embodiment of the water quality testing instrument with filtration function of this utility model, an adjustment block is connected to the center of the top of the support plate, a locking spring is connected to the surface opening of the rotating shaft, a locking buckle is connected to the other end of the locking spring, and a locking groove is provided on the inner wall of the adjustment block near the locking buckle.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention secures the filter housing onto the surface of the electrode detection rod by simultaneously extending the movable plate on the side of the positioning plate. Releasing the movable plate resets the compressed positioning spring, which in turn resets the connecting plate and clamps the assembly plate to the top of the electrode detection rod, ensuring stable installation of the filter housing. When the electrode detection rod is placed in the water sample, the filter housing and filter holes filter out leaves and larger particles, ensuring direct contact between the electrode detection rod and the water sample, thus improving the accuracy and sensitivity of water quality testing. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of the water quality testing instrument of this utility model;

[0016] Figure 2This is a schematic diagram of the rear view structure of the water quality analyzer of this utility model;

[0017] Figure 3 This is a schematic diagram showing the assembled and disassembled structure of the filter housing of this utility model;

[0018] Figure 4 This is a schematic diagram of the assembly plate connection structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the support plate connection structure of this utility model;

[0020] Figure 6 This is an enlarged structural diagram of point A of this utility model.

[0021] In the diagram: 1. Handheld water quality analyzer body; 2. Plug; 3. Wire; 4. Electrode probe; 5. Filter housing; 51. Filter hole; 6. Positioning plate; 7. Movable plate; 8. Assembly plate; 9. Connecting plate; 10. Positioning spring; 11. Guide block; 12. Guide groove; 101. Fixing block; 13. Rotating shaft; 14. Bushing; 15. Support plate; 16. Adjusting block; 17. Locking spring; 18. Locking buckle; 19. Locking groove. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6 The present invention provides the following technical solution: a water quality tester with a filtration function, including a handheld water quality tester body 1 and a plug 2 installed on the top of the handheld water quality tester body 1, the top of the plug 2 is connected to a wire 3, and the other end of the wire 3 is connected to an electrode test rod 4.

[0024] A filter housing 5 is fitted onto the surface of the electrode detection rod 4. A positioning plate 6 is connected to the top of the filter housing 5. A movable plate 7 is connected to one side of the positioning plate 6. An assembly plate 8 is connected to the other end of the movable plate 7. A connecting plate 9 is connected to the outside of the assembly plate 8. A positioning spring 10 is connected to one side of the connecting plate 9. A guide block 11 is connected to the end of the connecting plate 9 near the positioning plate 6.

[0025] Preferably, the filter housing 5 is made of PVC material, and the surface of the filter housing 5 is provided with filter holes 51, and the assembly plate 8 is made of plastic material.

[0026] In practical use, the assembly plate 8 facilitates the stable assembly of the filter housing 5 onto the surface of the electrode detection rod 4, thereby enabling the filtration of external impurities and improving the accuracy of the detection data.

[0027] Preferably, one end of the positioning spring 10 relative to the connecting plate 9 is connected to the inner wall of the positioning plate 6, and the positioning spring 10 and the connecting plate 9 form an elastic telescopic structure.

[0028] In practical use, by stretching and loosening the movable plate 7, the positioning spring 10 can be easily stretched and deformed, which in turn facilitates the movement of the assembly plate 8.

[0029] Preferably, the positioning plate 6 has a guide groove 12 on its inner wall near the guide block 11, and the guide block 11 and the guide groove 12 on the inner wall of the positioning plate 6 form a sliding connection structure.

[0030] In practical use, by sliding the guide block 11 along the guide groove 12 on the inner wall of the positioning plate 6, the connecting plate 9 can be moved stably and avoids deviation.

[0031] Preferably, a fixing block 101 is connected to the back side of the handheld water quality tester body 1, a rotating shaft 13 is connected to the inner side of the fixing block 101, a bushing 14 is connected to the surface of the rotating shaft 13, and a support plate 15 is connected to the surface of the bushing 14.

[0032] In practical use, the support plate 15 allows the handheld water quality tester body 1 to be placed on a table, saving people from holding it for a long time and improving the convenience of water quality testing.

[0033] Preferably, an adjusting block 16 is connected to the center of the top of the support plate 15, a locking spring 17 is connected to the opening on the surface of the rotating shaft 13, a locking buckle 18 is connected to the other end of the locking spring 17, and a locking groove 19 is provided on the inner wall of the adjusting block 16 near the locking buckle 18.

[0034] In practical use, by rotating the adjusting block 16 on the surface of the rotating shaft 13, the locking buckle 18 is driven to squeeze the locking spring 17, causing the locking spring 17 to deform. Then, the locking buckle 18 is driven to engage with the locking groove 19 on the inner wall of the adjusting block 16, so as to limit and stabilize the support plate 15.

[0035] The working principle of this utility model in specific use is as follows: First, by fitting the filter housing 5 onto the surface of the electrode detection rod 4, and simultaneously stretching the movable plate 7 on the side of the positioning plate 6, the filter housing 5 is stably fitted onto the surface of the electrode detection rod 4. At this time, the movable plate 7 is released, the compressed positioning spring 10 is reset, and then the connecting plate 9 is reset, while the guide block 11 slides along the guide groove 12 on the inner wall of the positioning plate 6 to ensure the stable movement of the assembly plate 8. At the same time, the assembly plate 8 is clamped and stabilized with the top of the electrode detection rod 4, so that the filter housing 5 is stably installed on the surface of the electrode detection rod 4. When the electrode detection rod 4 is placed in the water sample to be tested, the filter housing 5 and the filter hole 51 filter the leaves and larger particulate impurities in the water sample, ensuring that the electrode detection rod 4 is in direct contact with the water sample. Then, the handheld water quality analyzer body 1 is used. The electrodes in the device react with the chemicals in the water sample through oxidation-reduction reactions or potential changes. By measuring the electrical signals generated by these reactions or changes, and then processing and converting them through internal circuitry, the values ​​of water quality parameters are finally displayed, improving the accuracy and sensitivity of water quality testing. In addition, by rotating the support plate 15 on the back of the handheld water quality analyzer body 1, the bushing 14 and the adjusting block 16 rotate on the surface of the rotating shaft 13, causing the inner wall of the adjusting block 16 to press against the locking buckle 18, thus adjusting the angle of the support plate 15 on the back of the handheld water quality analyzer body 1. Then, the locking spring 17 is reset, causing the locking buckle 18 to engage with the locking groove 19 on the inner wall of the adjusting block 16, which facilitates the stabilization and positioning of the support plate 15. After that, the handheld water quality analyzer body 1 can be placed on a table, saving the person's hands from holding it for a long time and improving the convenience of water quality testing.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water quality detector with filtering function, comprising a handheld water quality detector body (1) and a plug (2) installed at the top end of the handheld water quality detector body (1), characterized in that: The top end of the plug (2) is connected with an electric wire (3), and the other end of the electric wire (3) is connected with an electrode detection stick (4); The surface of the electrode detection stick (4) is sleeved with a filter shell (5), the top end of the filter shell (5) is connected with a positioning plate (6), one side of the positioning plate (6) is connected with a movable plate (7), the other end of the movable plate (7) is connected with an assembly plate (8), the outer side of the assembly plate (8) is connected with a connecting plate (9), one side of the connecting plate (9) is connected with a positioning spring (10), and one end of the connecting plate (9) close to the positioning plate (6) is connected with a guide block (11).

2. The water quality detector with filtering function according to claim 1, characterized in that: The filter shell (5) is made of PVC material, and the surface of the filter shell (5) is provided with a filter hole (51), and the assembly plate (8) is made of plastic material.

3. The water quality detector with filtering function according to claim 1, characterized in that: One end of the positioning spring (10) relative to the connecting plate (9) is connected with the inner wall of the positioning plate (6), and the positioning spring (10) and the connecting plate (9) constitute an elastic expansion structure.

4. The water quality detector with filtering function according to claim 1, characterized in that: The inner wall of the positioning plate (6) close to the guide block (11) is provided with a guide groove (12), and the guide block (11) and the guide groove (12) of the inner wall of the positioning plate (6) constitute a sliding connection structure.

5. The water quality detector with filtering function according to claim 1, characterized in that: The back side of the handheld water quality detector body (1) is connected with a fixing block (101), the inner side of the fixing block (101) is connected with a rotating shaft (13), the surface of the rotating shaft (13) is connected with a shaft sleeve (14), and the surface of the shaft sleeve (14) is connected with a supporting plate (15).

6. The water quality detector with filtering function according to claim 5, characterized in that: The top end of the supporting plate (15) is connected with an adjusting block (16), the surface of the rotating shaft (13) is connected with a locking spring (17) at the opening, the other end of the locking spring (17) is connected with a locking buckle (18), and the inner wall of the adjusting block (16) close to the locking buckle (18) is provided with a locking groove (19).

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