Gold-plated corrosion-resistant conductivity sensor

Abstract

The utility model discloses a gold-plated corrosion-resistant conductivity sensor which comprises an electrode main body, the bottom of the electrode main body is connected with an outer tube, an inner tube is arranged in the outer tube, the outer side of the outer tube and the outer side of the inner tube are respectively electroplated with a coating I and a coating II, a fixing piece is arranged in the outer tube, and the fixing piece is arranged in the outer tube. The inner wall of the outer pipe and the outer side of the fixing piece are provided with matched thread sets and are in threaded connection. According to the utility model, the rubber sealing ring I and the thread group are arranged to realize the quick release between the fixing piece and the outer pipe, compared with the direct use of the sealing ring, the quick release is more stable, and the surfaces of the 316L / Ti outer pipe and the 316L / Ti inner pipe are electroplated with gold with the thickness of 50mil, and the super-thick gold coating prevents the direct contact between the solution and the 316L / Ti material, so that the service life of the sensor is prolonged, and the service life of the sensor is prolonged. The corrosion period of the to-be-detected sample to the sensor is prolonged, the value measurement stability and precision of the sensor are improved, the application problem of chemical conductivity detection is solved, and a feasible scheme is provided for expansion of part of industry technologies.

Description

Technical Field

[0001] This utility model relates to the field of conductivity sensor technology, and more specifically, to a gold-plated corrosion-resistant conductivity sensor. Background Technology

[0002] Some conductivity measurements are performed using a contact measurement principle, where the conductive components of the sensor are in continuous contact with the solution. When the measuring medium can directly react with the sensor material, electrode corrosion continues. In some applications, corrosive substances such as hydrochloric acid, hydrogen peroxide, and hydrofluoric acid may be present, causing corrosion damage to the 316L / Ti material of the sensor. This can affect the accuracy of the measurements, lifespan, and equipment safety. Furthermore, the electrodes may move slightly when directly clamped by the sealing ring, affecting their use. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of this utility model is to provide a gold-plated corrosion-resistant conductivity sensor to solve the problems in the background technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution;

[0005] A gold-plated corrosion-resistant conductivity sensor includes an electrode body with an outer tube connected to its bottom. An inner tube is located inside the outer tube. The outer and inner tubes are electroplated with a first coating and a second coating, respectively. A fixing component is located inside the outer tube. The inner wall of the outer tube and the outer side of the fixing component are connected by a threaded assembly. The inner tube is connected inside the fixing component. A rubber sealing ring is fixedly connected to the inner wall of the outer tube. A groove is formed on the outer side of the fixing component, and the rubber sealing ring is located inside the groove. Two rubber sealing rings are connected to the inner wall of the fixing component at equal intervals. Two grooves are formed on the second coating at equal intervals, and the rubber sealing rings are located inside the grooves.

[0006] As a further description of the above technical solution: both coating one and coating two are gold-plated coatings with a thickness of mil.

[0007] As a further description of the above technical solution: the outer wall of the fastener is chamfered and has a smooth surface.

[0008] Compared with existing technologies, the advantages of this utility model are:

[0009] In this invention, a rubber sealing ring is provided to enable quick disassembly between the fixing component and the outer tube via a threaded assembly. This method is more stable than using a sealing ring directly. Furthermore, by electroplating 50mil thick gold onto the surfaces of the outer and inner tubes made of 316L / Ti material, the ultra-thick gold plating prevents direct contact between the solution and the 316L / Ti material, thereby extending the sensor's lifespan, prolonging the corrosion cycle of the sample on the sensor, and improving the stability and accuracy of the sensor's measurements. This solves the application problem of chemical conductivity detection and provides a feasible solution for the expansion of technologies in some industries. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the fastener of this utility model;

[0011] Figure 2 This is a frontal cross-sectional view of the present invention.

[0012] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0013] Explanation of the labels in the diagram:

[0014] 1. Electrode body; 2. Outer tube; 3. Inner tube; 4. Coating 1; 5. Coating 2; 6. Fixing component; 7. Rubber sealing ring 1; 8. Slot 1; 9. Rubber sealing ring 2; 10. Slot 2. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figures 1-3 In this utility model, a gold-plated corrosion-resistant conductivity sensor includes an electrode body 1, an outer tube 2 connected to the bottom of the electrode body 1, an inner tube 3 disposed inside the outer tube 2, a coating 4 and a coating 5 electroplated on the outer sides of the outer tube 2 and the inner tube 3 respectively, a fixing member 6 disposed inside the outer tube 2, a threaded connection is formed between the inner wall of the outer tube 2 and the outer side of the fixing member 6, the inner tube 3 is connected inside the fixing member 6, a rubber sealing ring 7 is fixedly connected to the inner wall of the outer tube 2, a slot 8 is formed on the outer side of the fixing member 6, the rubber sealing ring 7 is located inside the slot 8, a rubber sealing ring 9 is connected to the inner wall of the fixing member 6 at equal intervals, a slot 10 is formed on the coating 5 at equal intervals, the rubber sealing ring 9 is located inside the slot 10.

[0017] Both coating 4 and coating 5 are 50mil thick gold-plated coatings. The outer tube 2 and inner tube 3 both require electroplating coatings. The diagram is for easy understanding.

[0018] Both the outer tube 2 and the inner tube 3 are electroplated with a 50mil thick gold coating on their outer sides. Both the outer tube 2 and the inner tube 3 are made of 316L / Ti material. During assembly, the inner tube 3 is inserted into the center of the fixing member 6. The rubber sealing ring 2 9 on the inner side of the fixing member 6 contacts the inner tube 3. Subsequently, multiple sets of rubber sealing rings 2 9 are squeezed and deformed into the slot 2 10 to complete the snap-fit, making the inner tube 3 and the fixing member 6 an integral unit. Then, the fixing member 6 is inserted into the outer tube 2. At this time, the threaded group on the inner side of the outer tube 2 is threadedly connected to the threaded group on the outer side of the fixing member 6. When the connection is about to be completed, the protruding part of the fixing member 6 contacts the rubber sealing ring 1 7. Then, the squeezing continues until the rubber sealing ring 1 7 is completely inserted into the slot 1 8. The outer tube 2 and the fixing part 6 are also directly connected by threads. At this time, the rubber sealing ring 7 plays a sealing role and can also prevent the threads from loosening, ensuring the stability between the inner tube 3 and the outer tube 2. When it is necessary to remove, the operation can be reversed. In actual use, some conductivity is measured by contact principle. The conductive parts of the sensor are in continuous contact with the solution. When the measuring medium can react directly with the sensor material, electrode corrosion will continue to occur. Coating 4 and coating 5 are 50mil electroplated gold coatings. Gold has stable chemical properties and strong conductivity, which can cope with most corrosive liquid conditions, effectively increasing the overall corrosion resistance of the sensor and extending its service life.

[0019] In this invention, a quick-release mechanism is achieved between the fixing component 6 and the outer tube 2 by setting a rubber sealing ring 7 and a threaded assembly. This is more stable than using a sealing ring directly. Furthermore, by electroplating 50mil thick gold onto the surfaces of the outer tube 2 and inner tube 3 made of 316L / Ti material, the ultra-thick gold plating prevents the solution from directly contacting the 316L / Ti material, thereby extending the sensor's lifespan, prolonging the corrosion cycle of the sample on the sensor, and improving the stability and accuracy of the sensor's measurements. This solves the application problem of chemical conductivity detection and provides a feasible solution for the expansion of technologies in some industries.

[0020] Please see Figure 1 and 2 Among them, the outer edge of the fastener 6 is chamfered and the surface is smooth.

[0021] In this invention, when the fixing member 6 contacts the rubber sealing ring 7, its smooth chamfer can reduce friction and resistance, thereby facilitating assembly.

[0022] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A gold-plated corrosion-resistant conductivity sensor, comprising an electrode body (1), characterized in that: The bottom of the electrode body (1) is connected to an outer tube (2), and an inner tube (3) is provided inside the outer tube (2). The outer tube (2) and the inner tube (3) are respectively electroplated with coating one (4) and coating two (5). A fixing member (6) is provided inside the outer tube (2). The inner wall of the outer tube (2) and the outer side of the fixing member (6) are provided with matching threaded groups and threadedly connected. The inner tube (3) is connected inside the fixing member (6). A rubber sealing ring 1 (7) is fixedly connected to the inner wall of the outer tube (2). A slot 1 (8) is provided on the outer side of the fixing member (6). The rubber sealing ring 1 (7) is located inside the slot 1 (8). A rubber sealing ring 2 (9) is connected to the inner wall of the fixing member (6) at equal intervals. A slot 2 (10) is provided on the coating 2 (5) at equal intervals. The rubber sealing ring 2 (9) is located inside the slot 2 (10).

2. The gold-plated corrosion-resistant conductivity sensor according to claim 1, characterized in that: Both coating one (4) and coating two (5) are gold-plated coatings with a thickness of 50 mil.

3. The gold-plated corrosion-resistant conductivity sensor according to claim 1, characterized in that: The outer edge of the fastener (6) is chamfered and the surface is smooth.

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