A pH detector electrode convenient to maintain
By designing a circulation component in the pH meter electrode, the reference electrolyte can be replenished without disassembly, solving the problem of cumbersome electrolyte replenishment in traditional electrodes, improving maintenance efficiency and reducing the risk of component damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHONGTONG ENGINEERING QUALITY INSPECTION CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-03
AI Technical Summary
The reference electrolyte replenishment for the electrodes of existing pH meters is inconvenient, requiring the removal of multiple parts, which is cumbersome and increases the risk of damage.
A circulation assembly was designed, including an electrolyte tank, a micro water pump, and rubber tubing, to enable the reference electrolyte to be replenished without disassembly. The injection of electrolyte is controlled by the micro water pump and a shut-off valve.
It enables rapid replenishment of the reference electrolyte, avoids damage to components, improves maintenance efficiency, and reduces the risk of leakage.
Smart Images

Figure CN224456658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pH detection technology, specifically to a pH detector electrode that is easy to maintain. Background Technology
[0002] A pH meter electrode that is easy to maintain is disclosed in CN220603364U. It includes a housing, a detection element, and a protective element. The detection element is disposed inside the housing, the protective element is disposed on one side of the housing, and a mounting assembly is disposed inside the main assembly. The mounting assembly includes a limiting element, a fixing element, and a moving element. The limiting element, the fixing element, and the moving element are disposed inside the housing.
[0003] The device is designed with a main component to detect the acidity or alkalinity of the solution and protect the electrodes. The installation component allows for quick disassembly and installation of the motor, facilitating electrode cleaning and replacement. It also secures the connection between the motor and the wires to prevent loosening.
[0004] However, replenishing the reference electrolyte inside the casing is inconvenient, requiring the disassembly of multiple parts, which is a cumbersome process. Furthermore, the disassembly and replenishment process increases the risk of damage to the parts. Therefore, this solution is not very convenient for replenishing the reference electrolyte. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a pH meter electrode that is easy to maintain. It solves the problem of inconvenient replenishment of the reference electrolyte inside the housing, which requires the disassembly of multiple parts for replenishment, is cumbersome, and increases the risk of damage to parts during disassembly and replenishment.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-maintain pH meter electrode, comprising a tube body, a connector fixed at the top of the tube body and a glass sensitive membrane at the bottom, a sleeve sleeved at the connection between the top of the tube body and the connector, and a circulation component disposed on the side of the sleeve; the circulation component comprises a connecting ring, a connecting block fixed on one side of the connecting ring, an insert plate fixed on one side of the connecting block, a slot on the surface of the insert plate, an insert block inserted into the slot, an electrolyte chamber fixed on one side of the insert block, a protective cylinder sleeved at the top of the electrolyte chamber, a micro water pump sleeved inside the protective cylinder, the pumping end of the micro water pump connected to a pumping pipe extending to the bottom of the electrolyte chamber, an L-tube connected through the side of the micro water pump, one end of the L-tube penetrating the side of the protective cylinder and connected to a rubber tube, one end of the rubber tube penetrating the sleeve and connected through the top of the tube body, and a micro shut-off valve disposed at the connection between the rubber tube and the L-tube.
[0007] In one specific embodiment, a protective cap is fitted onto the bottom of the tube body, and an elastic sealing ring is fitted inside the protective cap. Several elastic sealing strips are distributed in a ring array on the surface of the elastic sealing ring.
[0008] In one specific embodiment, the micro water pump is fixed to the inner wall of the protective cylinder by a snap fastener, and the water inlet of the water pumping pipe extends to the bottom of the electrolyte chamber and a filter screen is installed at the pipe opening.
[0009] In one specific embodiment, the slot is a T-slot structure, and the shape of the insert block matches the slot with a clearance fit between them.
[0010] In one specific embodiment, the top of the protective cylinder is provided with a detachable cover plate, and the surface of the cover plate has a wire passage hole that matches the power cord of the micro water pump.
[0011] In one specific embodiment, the connecting ring and the sleeve are connected by threads, and the inner wall of the connecting ring is provided with an annular thread groove that matches the thread of the outer wall of the sleeve.
[0012] Compared with the prior art, this utility model provides a pH meter electrode that is easy to maintain and has the following beneficial effects:
[0013] The technical solution disclosed in this utility model achieves reference electrolyte replenishment without disassembly through the pipeline design of the electrolyte tank, micro water pump and rubber tube of the circulation component. When the electrolyte is insufficient, the micro water pump is turned on and the micro shut-off valve is opened. The electrolyte is injected directly into the tube body from the electrolyte tank through the water pump, L-tube and rubber tube. This solves the cumbersome problem of traditional electrodes needing to be disassembled for replenishment, improves maintenance efficiency, and avoids the risk of damage to parts caused by disassembly.
[0014] The protective cap at the bottom of the tube and the annular array distribution structure of the elastic sealing ring and elastic sealing strip set by this utility model form a multi-layer elastic sealing barrier. After the protective cap is fitted, the elastic sealing strip tightly fits the outer wall of the glass sensitive membrane to prevent electrolyte leakage or external contaminant intrusion, ensuring the stability of the electrode during storage or transportation and reducing the frequency of calibration failure due to leakage. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the tube structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the circulating component structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the glass sensitive membrane structure of this utility model.
[0020] In the diagram: 1. Tube body; 2. Connector; 3. Glass sensitive membrane; 4. Sleeve; 5. Circulation assembly; 51. Connecting ring; 52. Connecting block; 53. Insert plate; 54. Slot; 55. Insert block; 56. Electrolyte tank; 57. Protective sleeve; 58. Miniature water pump; 59. L-tube; 510. Rubber hose; 511. Pumping pipe; 6. Protective cap; 7. Elastic sealing ring; 8. Elastic sealing strip; 9. Miniature shut-off valve. Detailed Implementation
[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0022] Figures 1-4 As one embodiment of this utility model, a pH meter electrode that is easy to maintain includes a tube body 1, a connector 2 fixedly connected to the top of the tube body 1 and a glass sensitive membrane 3 provided at the bottom, a sleeve 4 sleeved at the connection between the top of the tube body 1 and the connector 2, and a circulation component 5 provided on the side of the sleeve 4.
[0023] The specific problem addressed in this embodiment is the inconvenience of replenishing the reference electrolyte inside the casing, which requires the disassembly of multiple parts, resulting in a cumbersome process and increasing the risk of damage to components during disassembly. This invention achieves non-disassembly-based replenishment of the reference electrolyte through the piping design of the electrolyte tank 56, micro water pump 58, and rubber tube 510 in the circulation component 5. When the electrolyte is insufficient, the micro water pump 58 is activated and the micro shut-off valve 9 is opened, allowing the electrolyte to flow directly from the electrolyte tank 56 through the pumping pipe 511, L-tube 59, and rubber tube 510 into the tube body 1. This solves the cumbersome problem of traditional electrode disassembly for replenishment, improves maintenance efficiency, and avoids the risk of component damage caused by disassembly.
[0024] The circulation component 5 includes a connecting ring 51, a connecting block 52 fixed to one side of the connecting ring 51, an insert plate 53 fixed to one side of the connecting block 52, a slot 54 on the surface of the insert plate 53, an insert block 55 inserted into the slot 54, an electrolyte tank 56 fixed to one side of the insert block 55, a protective cylinder 57 sleeved on the top of the electrolyte tank 56, a micro water pump 58 sleeved inside the protective cylinder 57, the pumping end of the micro water pump 58 connected to a pumping pipe 511 extending to the bottom of the electrolyte tank 56, an L-tube 59 connected through the side of the micro water pump 58, one end of the L-tube 59 penetrating the side of the protective cylinder 57 and connected to a rubber tube 510, one end of the rubber tube 510 penetrating the sleeve 4 and connected through the top of the tube body 1, a micro shut-off valve 9 provided at the connection between the rubber tube 510 and the L-tube 59, in this specific embodiment, the connection between the top of the tube body 1 and the connector 2... A sleeve 4 is connected to the joint. A connecting ring 51 is fixed to the side of the sleeve 4 by bolts. A connecting block 52 is welded to the connecting ring 51. A plug plate 53 is fixed to the connecting block 52. A slot 54 is opened on the surface of the plug plate 53. A plug block 55 is inserted into the slot 54. The plug block 55 fixes the electrolyte tank 56. A protective cylinder 57 is fitted to the top of the electrolyte tank 56. A micro water pump 58 is fixed inside the protective cylinder 57 by a buckle. The water pump 58 is connected to a water pumping pipe 511 extending to the bottom of the electrolyte tank 56. A stainless steel filter screen is installed at the water inlet of the water pumping pipe 511. An L-tube 59 is connected to the side of the micro water pump 58. The L-tube 59 passes through the side of the protective cylinder 57 and is connected to a rubber tube 510. The rubber tube 510 passes through the sleeve 4 and is connected to the top of the tube body 1. A micro shut-off valve 9 is installed at the connection between the rubber tube 510 and the L-tube 59. The electrolyte in the electrolyte tank 56 is directly drawn from the micro water pump 58 and injected into the tube 1, achieving electrolyte replenishment without disassembly, avoiding damage to parts caused by traditional electrode disassembly and maintenance, and improving electrolyte replenishment efficiency.
[0025] In this specific embodiment, a protective cap 6 is fitted onto the bottom of the pipe body 1, and an elastic sealing ring 7 is fitted inside the protective cap 6. Several elastic sealing strips 8 are distributed in a ring array on the surface of the elastic sealing ring 7.
[0026] The bottom of the tube body 1 is fitted with a protective cap 6, and the protective cap 6 is embedded with an elastic sealing ring 7. The elastic sealing ring 7 is made of silicone, and the surface has an array of elastic sealing strips 8. The ends of the elastic sealing strips 8 are arc-shaped to fit the outer wall of the glass sensitive membrane 3. The elastic sealing strips 8 form a multi-level sealing barrier to prevent electrolyte leakage and external contaminant intrusion, ensure electrode storage stability, and reduce the frequency of calibration failure.
[0027] In this specific embodiment, the micro water pump 58 is fixed to the inner wall of the protective cylinder 57 by a snap fastener, and the water inlet end of the water pumping pipe 511 extends to the bottom of the electrolyte tank 56 and a filter screen is provided at the pipe opening.
[0028] The miniature water pump 58 is fixed to the inner wall of the protective cylinder 57 by four sets of plastic clips. The filter screen at the water inlet of the water pipe 511 has a pore size of 0.5mm, which can intercept the sediment particles at the bottom of the electrolyte tank 56. The clips ensure the stability of the water pump operation, and the filter screen prevents impurities from clogging the pipeline and extends the service life of the electrode.
[0029] In this specific embodiment, the slot 54 has a T-shaped slot structure, and the shape of the insert 55 matches the slot 54 with a clearance fit between them;
[0030] The slot 54 has a T-shaped slot structure, and the plug 55 is a T-shaped aluminum alloy block that fits with the slot 54 with a clearance. The T-shaped plug structure enables quick assembly and disassembly of the electrolyte tank 56, reducing the operation time and improving maintenance convenience.
[0031] In this specific embodiment, a detachable cover plate is provided on the top of the protective cylinder 57, and a wire passage hole matching the power cord of the micro water pump 58 is opened on the surface of the cover plate.
[0032] The top of the protective cylinder 57 is connected to a detachable cover plate via a thread. The cover plate has a 3mm diameter wire hole through which the power cable of the micro water pump 58 passes to connect to an external power source. The detachable cover plate facilitates water pump maintenance and power cable management, reducing maintenance complexity.
[0033] In this specific embodiment, the connecting ring 51 and the sleeve 4 are connected by threads, and the inner wall of the connecting ring 51 is provided with an annular thread groove that matches the thread of the outer wall of the sleeve 4.
[0034] The inner wall of the connecting ring 51 is machined with an annular thread groove, and the outer wall of the sleeve 4 is correspondingly set with matching threads. The two are locked by rotation. The threaded connection ensures the stability of the circulation component 5 and the tube body 1, and prevents the interruption of fluid replenishment caused by loosening under vibration.
[0035] Working principle: After the micro water pump 58 is powered on, the reference electrolyte in the electrolyte tank 56 is drawn and transported to the inside of the tube body 1 through the water pumping pipe 511, L pipe 59 and rubber tube 510 to complete the replenishment. The micro shut-off valve 9 controls the opening and closing of the pipeline. At the same time, the protective cap 6 seals the glass sensitive membrane 3 through the elastic sealing ring 7 and elastic sealing strip 8. The T-shaped slot 54 of the insert plate 53 and the gap fit of the insert block 55 realize the quick disassembly and assembly of the electrolyte tank 56. The threaded connection between the connecting ring 51 and the sleeve 4 ensures the stable operation of the circulation component 5, realizes maintenance without disassembly and prevents leakage.
[0036] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.
[0037] It should be noted that, in this document, 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.
[0038] 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 pH meter electrode that is easy to maintain, comprising a tube (1), characterized in that: The top of the tube (1) is fixedly connected to the connector (2) and the bottom is provided with a glass sensitive membrane (3). The top of the tube (1) is connected to the connector (2) with a sleeve (4). The side of the sleeve (4) is provided with a circulation component (5). The circulation component (5) includes a connecting ring (51), a connecting block (52) fixed on one side of the connecting ring (51), a plug plate (53) fixed on one side of the connecting block (52), a slot (54) on the surface of the plug plate (53), a plug block (55) inserted into the slot (54), an electrolyte tank (56) fixed on one side of the plug block (55), a protective cylinder (57) sleeved on the top of the electrolyte tank (56), and a micro water pump (58) sleeved inside the protective cylinder (57). The pumping end of the micro water pump (58) is connected to a pumping pipe (511) extending to the bottom of the electrolyte tank (56). The side of the micro water pump (58) is connected to an L-tube (59). One end of the L-tube (59) passes through the side of the protective cylinder (57) and is connected to a rubber tube (510). One end of the rubber tube (510) passes through the sleeve (4) and is connected to the top of the tube body (1). A micro shut-off valve (9) is provided at the connection between the rubber tube (510) and the L-tube (59).
2. The pH detector electrode of claim 1, wherein: The bottom of the tube body (1) is fitted with a protective cap (6), and an elastic sealing ring (7) is fitted inside the protective cap (6). Several elastic sealing strips (8) are distributed in a ring array on the surface of the elastic sealing ring (7).
3. The pH detector electrode of claim 1, wherein: The micro water pump (58) is fixed to the inner wall of the protective cylinder (57) by a buckle, and the water inlet of the water pump (511) extends to the bottom of the electrolyte tank (56) and the pipe opening is equipped with a filter screen.
4. The pH detector electrode of claim 1, wherein: The slot (54) has a T-shaped slot structure, and the shape of the insert (55) matches the slot (54) with a gap fit between them.
5. The pH detector electrode of claim 1, wherein: The protective cylinder (57) is provided with a detachable cover plate on the top, and the surface of the cover plate has a wire hole that matches the power line of the micro water pump (58).
6. The pH detector electrode of claim 1, wherein: The connecting ring (51) and the sleeve (4) are connected by threads, and the inner wall of the connecting ring (51) is provided with an annular thread groove that matches the thread on the outer wall of the sleeve (4).