Protection device for pH electrode

Abstract

The utility model relates to the technical field of electrode protection, and discloses a protection device for a pH electrode, which comprises an electrode, a locking sleeve is arranged on the outer wall of the right side of the electrode, a connecting sleeve is fixedly connected to the right side of the locking sleeve, an extraction sleeve is fixedly connected to the right side of the connecting sleeve, and a connector is arranged on the right side of the extraction sleeve. A first threaded ring is fixedly connected to the outer ring of the right side of the extraction sleeve, a second threaded groove is formed in the inner wall of the right side of the extraction sleeve, a silica gel head is fixedly connected to the outer wall of the right side of the connector, a cross hole is formed in the inner wall of the silica gel head, and a fixing assembly is arranged at the bottom of the locking sleeve. According to the utility model, the silica gel head and the cross-shaped hole are aligned with liquid for extraction operation, so that the functional requirement of liquid extraction is met, the filter plate arranged inside can filter impurities in the liquid, the damage of the impurities to the electrode is effectively avoided, the effect of protecting the electrode is achieved, and the liquid extraction and electrode protection both have the benefits of liquid extraction and electrode protection.

Description

Technical Field

[0001] This utility model relates to the field of electrode protection technology, specifically a protection device for pH electrodes. Background Technology

[0002] A pH electrode, also known as a pH probe or pH sensor, is the part of a pH meter that comes into contact with the substance being measured. It is a device that measures the pH value by measuring the electrode potential.

[0003] In the field of environmental monitoring, such as pH monitoring of water bodies like rivers, lakes, and oceans, accurate measurement data needs to be obtained stably over a long period. Due to the complexity of the monitoring environment, protective devices must be waterproof, moisture-proof, corrosion-resistant, and prevent biofouling to ensure the reliability and stability of the electrodes during long-term outdoor use.

[0004] If there are impurities in the liquid, they can easily enter the area where the electrode is located. Over time, the impurities may adhere to the electrode surface, affecting the normal electrical conduction and chemical reaction processes between the electrode and the liquid, resulting in a decrease in the conductivity of the electrode and a significant reduction in the accuracy of detection and other related functions.

[0005] To address the aforementioned issues, a protective device for pH electrodes is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a protective device for pH electrodes, which solves the problem in the prior art where impurities in the liquid can easily enter the electrode area. Over time, these impurities may adhere to the electrode surface, affecting the normal electrical conductivity and chemical reaction processes between the electrode and the liquid, leading to a decrease in the electrode's conductivity and a significant reduction in the accuracy of detection and other related functions.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a protective device for a pH electrode, comprising an electrode, a locking sleeve provided on the outer right side of the electrode, a connecting sleeve fixedly connected to the right side of the locking sleeve, a removable sleeve fixedly connected to the right side of the connecting sleeve, a connector provided on the right side of the removable sleeve, a first threaded ring fixedly connected to the outer right side of the removable sleeve, a second threaded groove provided on the inner right side of the removable sleeve, a silicone head fixedly connected to the outer right side of the connector, a cross hole provided on the inner wall of the silicone head, and a fixing component provided at the bottom of the locking sleeve.

[0008] By adopting the above technical solution, the extraction sleeve is squeezed to expel the internal air, and the liquid is extracted through the silicone sleeve and the cross hole, thus avoiding leakage and protecting the electrode.

[0009] As a further description of the above technical solution: the fixing component includes a connecting frame, which is disposed at the bottom of the locking sleeve, and a bidirectional threaded rod is rotatably connected inside the connecting frame.

[0010] By adopting the above technical solution, the connecting bracket is located at the bottom of the locking sleeve.

[0011] As a further description of the above technical solution: a second threaded ring is threadedly connected to the outer wall of the second threaded groove, and a filter plate is fixedly connected to the inner wall of the second threaded ring.

[0012] By adopting the above technical solution, impurities in the liquid are filtered through a filter plate.

[0013] As a further description of the above technical solution: the left inner wall of the connector is provided with a first threaded groove, and the first threaded groove is threadedly connected to the first threaded ring.

[0014] The connector is installed and fixed by adopting the above technical solution.

[0015] As a further description of the above technical solution: both the front and rear outer rings of the bidirectional threaded rod are threadedly connected to movable seats, and the movable seats slide against the inner wall of the connecting frame.

[0016] By adopting the above technical solution, the movable seat slides on the inner wall of the connecting frame, while the movable seat is fixed to the locking sleeve for tightening.

[0017] As a further description of the above technical solution: the front end of the bidirectional threaded rod is fixedly connected to a limiting plate.

[0018] By adopting the above technical solution, the bidirectional threaded rod is limited and controlled by the limiting plate.

[0019] As a further description of the above technical solution: the limiting plate and the connecting frame are connected by bolts and threads.

[0020] By adopting the above technical solution, limit control is achieved through a limit plate and bolts.

[0021] As a further description of the above technical solution: the outer wall of the electrode is provided with an extrusion groove, and the inner wall of the locking sleeve is fixedly connected with an extrusion ring.

[0022] By adopting the above technical solution, the extrusion ring is extruded into the extrusion groove to fix the locking sleeve.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. The present invention provides a protective device for a pH electrode. First, the silicone head and the cross hole are aligned with the liquid for extraction, which meets the functional requirements of liquid extraction. The internal filter plate can filter impurities in the liquid, effectively preventing impurities from damaging the electrode and playing a role in protecting the electrode. It has the benefits of both liquid extraction and electrode protection.

[0025] 2. The present invention provides a protective device for pH electrodes. The position of the movable seat can be adjusted by rotating the bidirectional threaded rod, which can adapt to different installation environments and needs. The limiting plate and the connecting frame are connected by bolts, which facilitates installation and disassembly. The whole device has good flexibility and convenience in installation and use, and can be flexibly adjusted according to the actual situation and is easy to operate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is an exploded view of the extraction sleeve of this utility model;

[0028] Figure 3 This is an exploded structural diagram of the connector of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the silicone head of this utility model;

[0030] Figure 5 This is an exploded view of the locking sleeve of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the bidirectional threaded rod of this utility model.

[0032] In the diagram: 1. Electrode; 2. Locking sleeve; 3. Connecting sleeve; 4. Extraction sleeve; 5. Connector; 6. First threaded ring; 7. Second threaded groove; 8. Second threaded ring; 9. Filter plate; 10. First threaded groove; 11. Silicone head; 12. Cross hole; 13. Connecting frame; 14. Extrusion groove; 15. Extrusion ring; 16. Moving seat; 17. Bidirectional threaded rod; 18. Limiting plate; 19. Bolt. Detailed Implementation

[0033] 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.

[0034] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0035] Reference Figure 1 This utility model discloses a protective device for a pH electrode, comprising an electrode 1, a locking sleeve 2 disposed on the outer right side of the electrode 1, and a connecting sleeve 3 fixedly connected to the right side of the locking sleeve 2. The locking sleeve 2 is preferably made of corrosion-resistant engineering plastic, such as polycarbonate (PC) or polytetrafluoroethylene (PTFE). These materials not only have good chemical stability and can resist the erosion of various acid and alkali solutions, but also have a certain mechanical strength, which can effectively protect the right side of the electrode 1 from accidental collisions or scratches, and at the same time can fit tightly with the electrode 1 to ensure the stability of the connection. The connecting sleeve 3 can be made of the same or similar engineering plastic material as the locking sleeve 2, and as a transition component, integrates the locking sleeve 2 and the extraction sleeve 4 together to ensure the continuity and stability of the entire device structure.

[0036] Reference Figure 2 - Figure 4The right side of the connecting sleeve 3 is fixedly connected to the extraction sleeve 4. The extraction sleeve 4 is also made of corrosion-resistant engineering plastic, which plays an important role in the whole device, assisting in the extraction and filtration of solutions. It is also a relatively soft material. The right side of the extraction sleeve 4 is provided with a connector 5, which allows the connector 5 to be stably installed on the extraction sleeve 4 and to be easily disassembled and replaced to meet different usage requirements. The connector 5 can be made of plastic or stainless steel that matches the extraction sleeve 4. If extremely high corrosion resistance is required and the budget allows, the 316L stainless steel model is a good choice, as it has excellent corrosion resistance and a certain mechanical strength. The outer ring on the right side of the extraction sleeve 4 is fixedly connected to the first threaded ring 6, and the inner wall on the right side of the extraction sleeve 4 has a second threaded groove 7. The outer wall on the right side of the connector 5 is fixedly connected to the silicone head 11, and the inner wall of the silicone head 11 has a cross hole 12. The silicone head 11 has good flexibility and sealing performance. Silica gel possesses excellent temperature resistance (usable in the range of -40℃ to 200℃), corrosion resistance, and biocompatibility. Its inner wall has cross-shaped holes 12, which serve as channels for solution entry. While ensuring the solution flows smoothly to electrode 1, its unique cross shape also allows for some control over the flow rate and direction, ensuring uniform distribution of the solution around electrode 1 and further improving measurement accuracy. A second threaded ring 8 is threaded onto the outer wall of the second threaded groove 7, and a filter plate 9 is fixedly connected to the inner wall of the second threaded ring 8. The filter plate 9 can be made of stainless steel mesh, and its mesh size can be selected according to the size of impurity particles in the actual measurement solution, generally between 0.1 and 0.5 mm is suitable. This effectively filters out impurity particles in the solution, preventing them from entering the measurement area near electrode 1 and thus avoiding interference with the accuracy of pH measurement. A first threaded groove 10 is formed on the inner wall of the left side of the connector 5, and the first threaded groove 10 is threadedly connected to the first threaded ring 6.

[0037] Reference Figure 5 and Figure 6The bottom of the locking sleeve 2 is provided with a fixing component, which includes a connecting frame 13. The connecting frame 13 is located at the bottom of the locking sleeve 2. A bidirectional threaded rod 17 is rotatably connected inside the connecting frame 13. The bidirectional threaded rod 17 can be made of stainless steel, such as 304 stainless steel, which has good corrosion resistance and mechanical strength and can withstand a certain torque. The outer rings at both ends of the bidirectional threaded rod 17 are threadedly connected with movable seats 16, and the movable seats 16 slide against the inner wall of the connecting frame 13, which restricts the movable seats 16 to move only along the axial direction of the bidirectional threaded rod 17 and prevents them from rotating freely. The front end of the bidirectional threaded rod 17 is fixedly connected to a limiting plate 18, and the limiting plate 18 is threadedly connected to the connecting frame 13 by bolts 19. The outer wall of the electrode 1 is provided with a pressing groove 14, and the inner wall of the locking sleeve 2 is fixedly connected with a pressing ring 15. When the bidirectional threaded rod 17 is rotated, due to the characteristics of its bidirectional thread, the movable seats 16 at both ends will move towards or away from each other. When moving towards each other, the moving seat 16 will squeeze the extrusion groove 14 on the outer wall of the electrode 1, and apply pressure to the electrode 1 through the extrusion ring 15, thereby firmly fixing the electrode 1 in the locking sleeve 2, ensuring that the electrode 1 will not be displaced or shaken during use, and ensuring the stability and accuracy of the measurement. The locking sleeve 2 and the extrusion ring 15 have a certain degree of toughness.

[0038] Working principle: The locking sleeve 2 is put on the electrode 1, and the compression ring 15 is engaged with the compression groove 14. The position of the moving seat 16 is adjusted by rotating the bidirectional threaded rod 17 to adapt to different installation environments and needs. At the same time, the locking sleeve 2 and the compression ring 15 are locked together. The limiting plate 18 and the connecting frame 13 are connected by bolts 19 for easy installation and disassembly. The connector 5 is installed through the first threaded ring 6 and the first threaded groove 10, and the filter plate 9 is installed through the second threaded ring 8 and the second threaded groove 7. The extraction sleeve 4 is squeezed to expel the internal air. The liquid can be extracted by aligning the silicone head 11 with the cross hole 12. The impurities in the liquid are filtered by the internal filter plate 9 to protect the electrode 1.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for a pH electrode, comprising an electrode (1), characterized in that: A locking sleeve (2) is provided on the outer right side of the electrode (1). A connecting sleeve (3) is fixedly connected to the right side of the locking sleeve (2). A pull-out sleeve (4) is fixedly connected to the right side of the connecting sleeve (3). A connector (5) is provided on the right side of the pull-out sleeve (4). A first threaded ring (6) is fixedly connected to the outer right side of the pull-out sleeve (4). A second threaded groove (7) is opened on the inner right side of the pull-out sleeve (4). A silicone head (11) is fixedly connected to the outer right side of the connector (5). A cross hole (12) is opened on the inner wall of the silicone head (11). A fixing component is provided at the bottom of the locking sleeve (2).

2. The protection device for a pH electrode according to claim 1, characterized in that: The fixing component includes a connecting frame (13), which is disposed at the bottom of the locking sleeve (2), and a bidirectional threaded rod (17) is rotatably connected inside the connecting frame (13).

3. The protection device for a pH electrode according to claim 1, characterized in that: The outer wall of the second threaded groove (7) is threaded with a second threaded ring (8), and the inner wall of the second threaded ring (8) is fixedly connected with a filter plate (9).

4. A protection device for a pH electrode according to claim 1, characterized in that: The connector (5) has a first threaded groove (10) on its left inner wall, and the first threaded groove (10) is threadedly connected to the first threaded ring (6).

5. A protection device for a pH electrode according to claim 2, characterized in that: The outer rings at both ends of the bidirectional threaded rod (17) are threaded with movable seats (16), and the movable seats (16) slide against the inner wall of the connecting frame (13).

6. A protection device for a pH electrode according to claim 2, characterized in that: The front end of the bidirectional threaded rod (17) is fixedly connected to a limiting plate (18).

7. A protection device for a pH electrode according to claim 6, characterized in that: The limiting plate (18) and the connecting frame (13) are connected by bolts (19) threaded connection.

8. A protection device for a pH electrode according to claim 1, characterized in that: The outer wall of the electrode (1) is provided with an extrusion groove (14), and the inner wall of the locking sleeve (2) is fixedly connected with an extrusion ring (15).

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