Split type electrode with waterproof and dustproof structure

Abstract

The utility model provides a kind of split type electrode with waterproof dustproof structure, comprising: digital signal converter and electrode stem, the connecting component of electrode stem is inserted in the connector of digital signal converter, and it is sealed between the inner wall surface of the connector of digital signal converter and the connecting component of electrode stem by at least one first sealing washer;Nut is installed between digital signal converter and electrode stem, for connecting digital signal converter and electrode stem;The inner wall surface of nut and the protective outer cover of electrode stem are connected using thread, and nut lower end and electrode stem between installation have a gasket, and the sealing between nut and electrode stem is realized by gasket extrusion The utility model uses O-ring, interference fit, thread and labyrinth structure, meets the waterproof dustproof requirement of split type electrode, expands its applicable scenario.The split type electrode is simple in structure, easy to install, low in cost, good in sealing effect, and convenient to install and disassemble.

Description

Technical Field

[0001] This utility model relates to the field of product chemical parameter detection, and in particular to a split electrode with a waterproof and dustproof structure. Background Technology

[0002] In existing technologies, conventional electrodes are mostly one-piece structures, primarily protected by mechanical seals. Current electrode protection mainly focuses on preventing external dust and water from interfering with the electrode's internal structure. Because conventional electrodes are one-piece structures, disassembly, assembly, and maintenance are very inconvenient. However, designing electrodes as separate structures presents significant challenges in achieving waterproofing and dustproofing, making it difficult to meet standard electrode requirements.

[0003] Figure 1 This is a three-dimensional view of the electrodes in the prior art. Figure 2 This is a schematic diagram showing the disassembly of an electrode in the prior art. (Example:) Figure 1 and Figure 2 As shown, the existing electrode consists of two parts: a digital signal converter 10 and an electrode rod 20. In operation, the electrode rod 20 is inserted into the digital signal converter 10, ensuring good and stable contact. The electrode is then connected to relevant cables and the instrument host, and immersed in the relevant solution. The electrode rod 20 then performs measurements. The electrode rod 20 transmits the analog signal of the chemical parameters to the digital signal converter 10, which then converts the analog signal into a digital signal through internal circuit calculations and control before transmission. Because a digital signal is transmitted, the anti-interference capability is greatly improved.

[0004] However, during the aforementioned measurements, the customer's actual usage scenario is unknown; they may use the equipment in the wild or other harsher environments. Therefore, the electrodes need to have significantly improved IP protection capabilities, especially in terms of signal interference immunity. Designing the electrodes as a split structure would significantly increase the difficulty of IP protection.

[0005] Therefore, the inventors of this application have designed a split electrode with a waterproof and dustproof structure in order to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the defects of the existing integrated electrode, which is inconvenient to disassemble and maintain, and to provide a split electrode with a waterproof and dustproof structure.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] A split-type electrode with a waterproof and dustproof structure, characterized in that the split-type electrode comprises:

[0009] A digital signal converter and an electrode rod, wherein a connecting assembly of the electrode rod is inserted into a connector of the digital signal converter, and the connecting assembly of the electrode rod and the inner wall surface of the connector of the digital signal converter are sealed by at least one first sealing ring;

[0010] A nut is installed between the digital signal converter and the electrode rod for connecting the digital signal converter and the electrode rod;

[0011] The inner wall of the nut and the protective sleeve of the electrode rod are connected by threads, and a washer is installed between the lower end of the nut and the electrode rod. The nut compresses the washer to achieve a seal between the nut and the electrode rod.

[0012] According to one embodiment of the present invention, the upper end of the nut is provided with an inwardly protruding snap-fit ​​structure, which is installed between the sleeve and the connector of the digital signal converter, so that the nut can move axially between the sleeve and the connector.

[0013] According to one embodiment of the present invention, when the nut is rotated upward, the upper end face of the snap-fit ​​structure and the bottom end face of the sleeve press against each other to form an axial limit;

[0014] When the nut is rotated downwards, the lower end face of the snap-fit ​​structure presses against the first end face of the connector, forming an axial limit.

[0015] According to one embodiment of the present invention, the digital signal converter includes a top connector and a sleeve. The sleeve is fitted onto the outside of the top connector. The top connector is provided with a plurality of second sealing rings. The second sealing rings contact and compress with the inner wall surface of the sleeve to form a seal.

[0016] According to one embodiment of the present invention, the outer wall surface of the connector includes an interconnected guide ramp and a cylindrical surface, wherein the cylindrical surface and the sleeve are interference fit.

[0017] According to one embodiment of the present invention, the inner wall surface of the sleeve is coated with sealant to seal the cylindrical surface of the connector.

[0018] According to one embodiment of the present invention, the electrode rod includes an electrode rod connecting assembly and a protective sleeve. The protective sleeve is fitted over the outside of the electrode rod connecting assembly. At least one third sealing ring is provided on the male end of the electrode rod connecting assembly. The third sealing ring is pressed against the inner wall surface of the protective sleeve to form a seal.

[0019] According to one embodiment of the present invention, the electrode rod further includes an electrode tube, the inner wall surface of the base of the electrode rod connecting assembly is coated with sealant, and the electrode tube is inserted into the base to form a seal.

[0020] According to one embodiment of the present invention, an internal thread is provided on the lower inner wall surface of the nut, and an external thread is provided on the lower outer wall surface of the protective sleeve of the electrode rod, wherein the internal thread and the external thread are connected to each other.

[0021] According to one embodiment of the present invention, the washer is a rubber pad, located between the lower end of the nut and the protective sleeve of the electrode rod.

[0022] The positive and progressive effects of this utility model are as follows:

[0023] This utility model features a split electrode with a waterproof and dustproof structure. It optimizes the original integrated electrode structure into a split structure with IP protection level. It adopts O-rings, interference fits, threads, and labyrinth structures to meet the waterproof and dustproof requirements of split electrodes and expand its applicable scenarios.

[0024] The split electrode has a simple structure, is easy to install, has low cost, good sealing effect, and is easy to install and disassemble. Attached Figure Description

[0025] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein:

[0026] Figure 1 This is a three-dimensional view of the electrodes in the prior art.

[0027] Figure 2 This is a schematic diagram showing the disassembly of an electrode in the prior art.

[0028] Figure 3 This is an axial sectional view of the split electrode with a waterproof and dustproof structure of this utility model.

[0029] Figure 4 for Figure 3 The enlarged view of section A shows the sealing structure at the upper end of the digital signal converter.

[0030] Figure 5 This is a partial cross-sectional view of the lower sealing structure of the digital signal converter in the split electrode with a waterproof and dustproof structure of this utility model.

[0031] Figure 6 This is an exploded view of the digital signal converter in the split electrode with a waterproof and dustproof structure of this utility model.

[0032] Figure 7 This is a schematic diagram of the sleeve structure in the split electrode with a waterproof and dustproof structure of this utility model.

[0033] Figure 8 This is a schematic diagram of the nut structure in the split electrode with a waterproof and dustproof structure of this utility model.

[0034] Figure 9 This is a partial cross-sectional view of the sealing structure of the electrode rod in the split electrode with a waterproof and dustproof structure of this utility model.

[0035] Figure 10 This is an exploded view of the electrode rod in the split electrode with a waterproof and dustproof structure of this utility model.

[0036] Figure 11 This is a schematic diagram of the base of the electrode rod connecting assembly in the split electrode with a waterproof and dustproof structure of this utility model.

[0037] Figure 12 for Figure 3 The enlarged view in section B shows the sealing structure of the connection area between the digital signal converter and the electrode rod.

[0038] Figure 13 for Figure 12 The diagram shows the possible path of an external foreign object entering the electrode.

[0039] [Attached image labels]

[0040] Digital signal converter 10

[0041] Electrode rod 20

[0042] Electrode rod connection assembly 21

[0043] Sleeve 11

[0044] Nut 12

[0045] Top connector 13

[0046] Circuit board assembly 14

[0047] Connector 15

[0048] Second sealing ring 131

[0049] Inner wall surface 111 of the sleeve

[0050] Snap-fit ​​structure 121

[0051] The inner cylindrical surface 112 of the sleeve

[0052] The first end face 151 of the connector

[0053] 30 sealant

[0054] Guide slope 152

[0055] Cylindrical surface 153

[0056] The second end face 154 of the connector

[0057] The bottom end face 113 of the sleeve

[0058] End face 114 on the inner wall of the sleeve

[0059] male head 211

[0060] First sealing ring 212

[0061] Third sealing ring 213

[0062] Protective Jacket 22

[0063] Electrode tube 23

[0064] Inner wall surface of protective jacket 221

[0065] Buckle 214

[0066] Base 215

[0067] 216 outer cylindrical surface of the base

[0068] The inner cylindrical surface of the base is 217.

[0069] Washer 40

[0070] Internal thread 122

[0071] External thread 222

[0072] Inner cylindrical surface 155 on the connector

[0073] Route 1 a

[0074] Route 2 (b)

[0075] Route C (Third route)

[0076] Route 4

[0077] Route 5 Detailed Implementation

[0078] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0079] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the drawings. Wherever possible, the same reference numerals will be used in all the drawings to denote the same or similar parts.

[0080] Furthermore, although the terminology used in this invention is selected from commonly known and used terms, some terms mentioned in this specification may have been selected by the applicant in his or her judgment, and their detailed meanings are explained in the relevant sections of the description herein.

[0081] Furthermore, it is required that this utility model be understood not only through the actual terminology used, but also through the meaning implied by each term.

[0082] refer to Figure 1 and Figure 2 This utility model discloses a split electrode with a waterproof and dustproof structure, including a digital signal converter 10 and an electrode rod 20. The electrode rod connecting assembly 21 of the electrode rod 20 is inserted into the connector 15 of the digital signal converter 10.

[0083] like Figure 3 As shown, the split electrode with a waterproof and dustproof structure is mainly divided into three parts to ensure IP protection capability. For example, the waterproof and dustproof sealing structure of the digital signal converter 10, the waterproof and dustproof sealing structure of the electrode rod 20, and the waterproof and dustproof sealing structure at the connection between the digital signal converter 10 and the electrode rod 20.

[0084] like Figure 4 and Figure 5 As shown, the digital signal converter 10 has an upper sealing structure and a lower sealing structure. The digital signal converter 10 includes a sleeve 11, a nut 12, a top connector 13, a circuit board assembly 14, and a connector 15. The top connector 13 is mounted on the upper end of the circuit board assembly 14, and the lower end of the circuit board assembly 14 is mounted on the connector 15. Both are then installed as a whole into the sleeve 11 and secured by the nut 12 (e.g., ...). Figure 6 (As shown).

[0085] Regarding the upper sealing structure of the digital signal converter 10, such as Figure 4 As shown, multiple second sealing rings 131 are provided on the top connector 13. For example, the second sealing rings 131 can preferably be O-rings. At least one of the uppermost second sealing rings 131 is suspended, for mating with external signal transmission cable-related devices to achieve mutual sealing. Multiple lower second sealing rings 131 and the inner wall surface 111 of the sleeve 11 (e.g., Figure 6As shown, for example, the inner wall surface 111 can be set as a cylindrical surface) comes into contact with each other and is pressed to form a seal. Figure 4 In this embodiment, two second sealing rings 131 are designed, which can effectively increase the reliability of the seal.

[0086] Regarding the lower sealing structure of the digital signal converter 10, such as Figure 5 As shown, the nut 12 is installed between the digital signal converter 10 and the electrode rod 20 for connecting the digital signal converter 10 and the electrode rod 20. The upper end of the nut 12 is provided with an inwardly protruding snap-fit ​​structure 121. The snap-fit ​​structure 121 is installed between the sleeve 11 and the connector 15 of the digital signal converter 10, allowing the nut 12 to move axially between the sleeve 11 and the connector 15. The movement distance is approximately 0.5 mm, which allows the lower end of the nut 12 to be more easily and effectively connected to the electrode rod 20.

[0087] When the nut 12 rotates upward, the upper end face of the snap-fit ​​structure 121 presses against the bottom end face 113 of the sleeve 11, forming an axial limit. When the nut 12 rotates downward, the lower end face of the snap-fit ​​structure 121 presses against the first end face 151 of the connector 15, forming an axial limit.

[0088] A layer of sealant 30 is applied to the top area of ​​connector 15 to ensure IP protection. Connector 15 is positioned axially below sleeve 11 and is pressed into sleeve 11 using appropriate tooling. The outer wall of connector 15 consists of interconnected guide ramps 152 and cylindrical surfaces 153. These guide ramps 152 facilitate the pressing process. Cylindrical surface 153 has an interference fit with sleeve 11. For example, the diameter of cylindrical surface 153 is set to be approximately 0.08 mm larger than the diameter of the inner cylindrical surface 112 of sleeve 11, i.e., a single-sided interference of 0.04 mm. This is just an example; the specific interference amount can be designed according to actual conditions, but the interference amount should not be too large to prevent assembly difficulties and to prevent deformation and damage to related parts.

[0089] Additionally, before assembling connector 15, a ring of sealant can be applied to the relevant pressure-bearing area on the inner wall surface 111 of sleeve 11 to ensure that the interference-fit area is completely sealed, preventing dust and water from entering.

[0090] As connector 15 moves axially upward, its second end face 154 is axially stopped by the end face 114 on the inner wall surface 111 of sleeve 11. At this point, a good seal is achieved between the bottom of connector 15 and sleeve 11. Both the upper and lower parts of digital signal converter 10 meet the relevant sealing protection levels.

[0091] Regarding the waterproof and dustproof sealing structure of the electrode rod 20, such as Figure 9 As shown, at least one first sealing ring 212 and at least one third sealing ring 213 are provided on the male end 211 of the electrode rod connecting assembly 21 of the electrode rod 20. For example, in this embodiment, a first sealing ring 212 and a third sealing ring 213 are provided on the male end 211, wherein the first sealing ring 212 cooperates with the digital signal converter 10, and the third sealing ring 213 and the inner wall surface 221 (e.g., cylindrical surface) of the protective sleeve 22 of the electrode rod 20 come into contact and are pressed together to complete the seal.

[0092] Here, the electrode rod 20 includes an electrode rod connecting assembly 21, a protective sleeve 22, and an electrode tube 23. The protective sleeve 22 is fitted over the electrode rod connecting assembly 21. The electrode rod connecting assembly 21 includes a male connector 211, a snap fastener 214, and a base 215 connected sequentially to each other. The electrode tube 23 is inserted into the base 215, forming a complete electrode rod 20 structure (e.g., ...). Figure 10 (As shown).

[0093] Combination Figure 11 As shown, a ring of sealant is applied to the outer cylindrical surface 216 of the base 215, and then the base 215 is inserted into the protective sleeve 22, thus completing the seal between the base 215 and the protective sleeve 22. A ring of sealant is applied to the inner cylindrical surface 217 of the base 215, and then the electrode tube 23 is inserted into the base 215, thus completing the seal between the base 215 and the electrode tube 23.

[0094] For the waterproof and dustproof sealing structure at the connection between the digital signal converter 10 and the electrode rod 20, such as Figure 12 As shown, the inner wall of the nut 12 and the protective sleeve 22 of the electrode rod 20 are connected by threads, and a washer 40 is installed between the lower end of the nut 12 and the electrode rod 20. The nut 12 compresses the washer 40 (for example, the washer 40 can preferably be a rubber gasket) to achieve a seal between the nut 12 and the electrode rod 20. For example, the lower inner wall of the nut 12 is provided with an internal thread 122, and the lower outer wall of the protective sleeve 22 is provided with an external thread 222. The internal thread 122 and the external thread 222 are connected to each other.

[0095] During electrode assembly, the electrode rod 20 is inserted into the bottom of the digital signal converter 10. After insertion, the nut 12 is moved downwards and rotated clockwise to effectively connect the internal thread 122 of the nut 12 with the external thread 222 of the protective sleeve 22. Continuing to rotate, the nut 12 will compress the washer 40. Once the nut 12 is rotated to its final position, the electrode assembly is complete.

[0096] Here, the first sealing ring 212 on the male connector 211 and the inner cylindrical surface 155 on the connector 15 come into contact and press against each other to complete the seal. During the downward rotation of the nut 12, the washer 40 is compressed, creating an interference fit, thus completing the seal between the washer 40 and the nut 12. The internal thread 122 of the nut 12 and the external thread 222 of the protective sleeve 22 are securely connected, physically isolating most dust and water. Simultaneously, due to the tight connection of the threads, the end face of the nut 12 and the end face of the connector 15 are in very tight contact, creating a compressive force, resulting in a good seal between them, effectively isolating most dust and water.

[0097] As mentioned above, according to Figure 13 As shown, this utility model has a split electrode with a waterproof and dustproof structure. In the split electrode, external water and dust can only enter the electrode from the upper or lower part of the nut 12. A maze-like design is adopted to achieve waterproof and dustproof protection.

[0098] For example, when a foreign object enters from the top of the nut 12, it may enter the electrode along the first path a. Therefore, the connector 15 and the sleeve 11 are designed with an interference fit and a sealant sealant to prevent foreign objects from entering through the first path a.

[0099] Then, foreign objects may enter the electrode along the second route b. The lower end face of the snap-fit ​​structure 121 of the nut 12 and the first end face 151 of the connector 15 are constantly under pressure, which can block some of the foreign objects. Based on this, the electrode is designed with a third route c, which is sealed by the mutual contact and compression of the first sealing ring 212 on the male head 211 and the inner cylindrical surface 155 on the connector 15, thereby further preventing foreign objects from entering.

[0100] When a foreign object enters from the bottom of the nut 12, the fourth route d, due to the constant compression between the nut 12 and the washer 40, can block most of the foreign object from entering. Based on this, the electrode is designed with a fifth route e, which is further blocked by the mutual engagement of the internal thread 122 of the nut 12 and the external thread 222 of the protective sleeve 22. If a foreign object still enters at this point, its trajectory will coincide with the third route c, and it will be blocked by the first sealing ring 212.

[0101] As described above, by forming a series of maze-like sealed paths through the first route a to the fifth route e, the IP waterproof and dustproof function can be effectively achieved.

[0102] In summary, this utility model features a split electrode with a waterproof and dustproof structure, which optimizes the original integrated electrode structure into a split structure with IP protection rating. It adopts structures such as O-rings, interference fits, threads, and labyrinths to meet the waterproof and dustproof requirements of split electrodes and expand its applicable scenarios.

[0103] The split electrode has a simple structure, is easy to install, has low cost, good sealing effect, and is easy to install and disassemble.

[0104] For those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0105] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0106] Similarly, it should be noted that, in order to simplify the description of the embodiments disclosed in this application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of this application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of this application requires more features than those mentioned in the claims. In fact, the embodiments have fewer features than all the features of a single embodiment disclosed above. Some embodiments use numbers describing the number of components or attributes; it should be understood that such numbers used in the description of embodiments are modified in some examples by the terms "approximately," "about," or "generally."

[0107] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A split electrode with a waterproof and dustproof structure, characterized in that, The split electrode includes: A digital signal converter and an electrode rod, wherein a connecting assembly of the electrode rod is inserted into a connector of the digital signal converter, and the connecting assembly of the electrode rod and the inner wall surface of the connector of the digital signal converter are sealed by at least one first sealing ring; A nut is installed between the digital signal converter and the electrode rod for connecting the digital signal converter and the electrode rod; The inner wall of the nut and the protective sleeve of the electrode rod are connected by threads, and a washer is installed between the lower end of the nut and the electrode rod. The nut compresses the washer to achieve a seal between the nut and the electrode rod.

2. The split electrode with a waterproof and dustproof structure as described in claim 1, characterized in that, The upper end of the nut is provided with an inwardly protruding snap-fit ​​structure, which is installed between the sleeve and the connector of the digital signal converter, so that the nut can move axially between the sleeve and the connector.

3. The split electrode with a waterproof and dustproof structure as described in claim 2, characterized in that, When the nut is rotated upward, the upper end face of the snap-fit ​​structure presses against the bottom end face of the sleeve, forming an axial limit; When the nut is rotated downwards, the lower end face of the snap-fit ​​structure presses against the first end face of the connector, forming an axial limit.

4. The split electrode with a waterproof and dustproof structure as described in claim 1, characterized in that, The digital signal converter includes a top connector and a sleeve. The sleeve is fitted onto the outside of the top connector. The top connector is provided with a plurality of second sealing rings. The second sealing rings contact and press against the inner wall surface of the sleeve to form a seal.

5. The split electrode with a waterproof and dustproof structure as described in claim 4, characterized in that, The outer wall of the connector includes an interconnected guide ramp and a cylindrical surface, and the cylindrical surface and the sleeve are in an interference fit.

6. The split electrode with a waterproof and dustproof structure as described in claim 5, characterized in that, The inner wall of the sleeve is coated with sealant to seal against the cylindrical surface of the connector.

7. The split electrode with a waterproof and dustproof structure as described in claim 1, characterized in that, The electrode rod includes an electrode rod connecting assembly and a protective sleeve. The protective sleeve is fitted over the outside of the electrode rod connecting assembly. At least one third sealing ring is provided on the male end of the electrode rod connecting assembly. The third sealing ring is pressed against the inner wall of the protective sleeve to form a seal.

8. The split electrode with a waterproof and dustproof structure as described in claim 7, characterized in that, The electrode rod also includes an electrode tube. The inner wall of the base of the electrode rod connecting assembly is coated with sealant, and the electrode tube is inserted into the base to form a seal.

9. The split electrode with a waterproof and dustproof structure as described in claim 1, characterized in that, The nut has an internal thread on its lower inner wall surface, and the electrode rod has an external thread on its lower outer wall surface. The internal thread and the external thread are connected to each other.

10. The split electrode with a waterproof and dustproof structure as described in claim 1, characterized in that, The washer is a rubber pad and is located between the lower end of the nut and the protective sleeve of the electrode rod.

Images