CN111735862A - Self-positioning electrode structure - Google Patents

Abstract

The invention discloses a self-positioning electrode structure, comprising an electrode shell, a positioning member, a sealing ring and an electrode core. A first inner cavity is opened on the top surface of the electrode shell, the electrode core is arranged on the electrode shell, and the left side of the electrode shell is opened There is a first annular groove and a first flow channel communicating with the first inner cavity, a second annular groove is opened on the right side of the electrode shell, and both the sealing ring and the positioning member are arranged in the first annular groove. The invention is applied to electrolyte analyzers and blood gas electrolyte analyzers. When multiple electrodes are installed and connected, the electrodes can realize self-positioning, so as to ensure smooth flow path holes formed by multiple electrodes, thereby reducing the probability of flow path blockage.

Description

Self-positioning electrode structure

technical field

The invention belongs to the technical field of electrode structures, and particularly relates to a self-positioning electrode structure.

Background technique

Currently, electrolyte analyzers and blood gas electrolyte analyzers need to configure multiple electrodes in order to measure multiple parameters. General electrolyte analyzers can measure parameters: pH, K+, Ca2+, Cl-, Na+, in addition, a reference electrode is required to provide reference potential, so 6 electrodes are required; the blood gas electrolyte analyzer is in addition to the parameters that can be measured on the electrolyte analyzer In addition, it can also measure PCO2, PO2, Hct, Glu, Lac, and some also require temperature electrodes. For example, the blood gas electrolyte analyzer Vitagas 8E of Kangli Biomedical Co., Ltd. requires 12 kinds of electrodes.

In order to ensure the alignment of the flow paths, the current common treatment method is to open a positioning through hole on each electrode shell, and then use an optical axis to string together all the electrodes as shown in Figure 6 of the manual, and then lock the two ends with nuts. tight. The biggest problem is that the electrode loading and unloading is very inconvenient. When an electrode is abnormal, we must remove the entire electrode string, and take out all the electrodes on the right side. After replacing the electrode, we need to put the electrodes on the right side back one by one, and this positioning method is very trouble.

Therefore, the existing technology needs to be improved.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to propose a self-positioning electrode structure to solve the technical problems mentioned in the background art.

A self-positioning electrode structure of the present invention includes an electrode shell, a positioning member, a sealing ring and an electrode core. The top surface of the electrode shell is provided with a first inner cavity, the electrode core is arranged on the electrode shell, and the left side of the electrode shell is provided with a first inner cavity. The first annular groove and the first flow channel communicated with the first inner cavity, the right side of the electrode shell is provided with a second annular groove, and the sealing ring and the positioning member are both arranged in the first annular groove.

Preferably, the sealing ring is located inside the first annular groove, and the positioning member is located outside the first annular groove.

Preferably, the positioning member comprises a circular plate-shaped body, a first through hole is formed on the right side of the circular plate-shaped body, and a first through cavity communicated with the first through hole is formed on the left side of the circular plate-shaped body.

Preferably, the cavity wall of one end of the first through cavity forms a first angle with the cavity wall of the other end of the second through cavity, and the groove wall of one end of the second annular groove forms a second angle with the groove wall of the other end of the second annular groove, The magnitude of the first angle is equal to the magnitude of the second angle.

Preferably, the magnitude of the first angle includes 60-120 degrees.

Preferably, the length protruding from the left side of the electrode shell after the circular plate-shaped body is snapped into the first annular groove is the first length, and the depth of the second annular groove is greater than the first length.

Preferably, the length of the second annular groove is greater than the length of the positioning member.

The self-positioning electrode structure of the present invention is applied to electrolyte analyzers and blood gas electrolyte analyzers. When multiple electrodes are installed and connected, the electrodes can realize self-positioning, so as to ensure smooth flow path holes formed by multiple electrodes, thereby reducing flow path blockage. probability.

Description of drawings

1 is a schematic structural diagram of a self-positioning electrode structure of the present invention;

2 is a schematic structural diagram of the self-positioning electrode structure of the present invention without a positioning member;

3 is a schematic structural diagram of a positioning member in the self-positioning electrode structure of the present invention;

4 is a schematic diagram of self-positioning of multiple self-positioning electrode structures applied to an electrolyte analyzer and a blood gas electrolyte analyzer;

5 is a three-dimensional schematic diagram of the self-positioning electrode structure of the present invention without a positioning member;

FIG. 6 is a schematic diagram of realizing multi-electrode positioning with one optical axis mentioned in the background art;

FIG. 7 is a schematic diagram of a plurality of self-positioning electrode structures applied to an electrolyte analyzer and a blood gas electrolyte analyzer at an arbitrary angle γ for self-positioning.

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. It should be noted that related terms such as "first", "second", etc. may be used to describe various components, but these terms do not limit the component. These terms are only used to distinguish one component from another. For example, a first component could be termed a second component, and a second component could similarly be termed a first component, without departing from the scope of the present invention. The term "and/or" refers to a combination of any one or more of the associated and described items.

In the background art, it is mentioned that all electrodes are aligned and positioned with an optical axis, which is specifically shown in FIG. 6 of the description.

As shown in Figures 1 and 2, Figure 1 is a schematic structural diagram of the self-positioning electrode structure of the present invention; Figure 2 is a schematic structural diagram of the self-positioning electrode structure of the present invention without a positioning member; a self-positioning electrode structure of the present invention includes: The electrode shell 10, the positioning member 50, the sealing ring 60 and the electrode core 20. The top surface of the electrode shell 10 is provided with a first inner cavity 11, the electrode core 20 is arranged on the electrode shell 10, and the left side B of the electrode shell is provided with a first inner cavity 11. The annular groove 80 and the first flow channel 100 communicated with the first inner cavity 11, the right side A of the electrode shell is provided with a second annular groove 70, and the sealing ring 60 and the positioning member 50 are both arranged in the first annular groove 80 . The self-positioning electrode structure of the present invention is applied to electrolyte analyzers and blood gas electrolyte analyzers. Based on the positioning member 50, the first annular groove 80 and the second annular groove 70, the electrodes can realize self-positioning when multiple electrodes are installed and connected. Positioning (as shown in Figure 4) ensures that the flow path holes formed by multiple electrodes are smooth, thereby reducing the probability of flow path blockage. Among them, the two electrodes are installed and connected at any angle γ (as shown in Figure 7), and their flow path holes are centered, so there is no need to design other positioning datums on the electrodes, all electrodes are installed in the sample box, and the installation surface There are also no strict requirements. In this way, the entire flow path hole composed of multiple electrodes is centered, the smoothness of the flow path is greatly increased, and the probability of flow path blockage is reduced. Wherein, it also includes a sensitive film 40 disposed at the bottom of the first inner cavity 11; the diameter D0 of the first flow channel 100 is 0.8-1 mm.

Specifically, as shown in FIG. 4 , when the self-positioning electrode structure of the present invention is applied to an electrolyte analyzer and a blood gas electrolyte analyzer, the right end of the positioning member 50 on the right self-positioning electrode structure Y located on the right side is snapped into the right side. In the first annular groove of the self-positioning electrode structure Y, and the left end of the positioning member 50 on the right self-positioning electrode structure Y located on the right side is snapped into the second annular groove of the left self-positioning electrode structure Z located on the left side; to achieve automatic positioning between the two electrode structures.

As shown in FIG. 1 , preferably, the sealing ring 60 is located inside the first annular groove, and the positioning member 50 is located outside the first annular groove;

As shown in FIGS. 3 and 2 , preferably, the positioning member includes a circular plate-shaped body 51 , a first through hole 52 is opened on the right side of the circular plate-shaped body, and a first through hole 52 is opened on the left side of the circular plate-shaped body. A first through cavity 53 communicated with a through hole 52; the circular plate-like body represents a circular plate-like structure; preferably, one end cavity wall 531 of the first through cavity 53 and the other end cavity wall 532 of the second through cavity The first angle β is formed, the groove wall 201 at one end of the second annular groove and the groove wall 200 at the other end of the second annular groove form a second angle α, and the size of the first angle β is equal to the size of the second angle α; The first angle and the second angle are defined, the left end of the positioning member 50 on the right self-positioning electrode structure Y located on the right can be snapped into the second annular groove of the left self-positioning electrode structure Z located on the left side, and the right self-positioning electrode structure Z The left side of the positioning electrode mechanism Y is in close contact with the right side of the left self-positioning electrode structure Y as much as possible, and the flow path holes of the two electrodes are automatically centered to realize the self-positioning function. Preferably, the magnitude of the first angle includes 60-120 degrees. As shown in FIG. 2 , the groove wall 201 of one end of the second annular groove is provided with a first chamfer R, and similarly the groove wall 200 of the other end of the second annular groove is provided with a second chamfer (not marked in the figure); As shown in FIG. 3 , the upper and lower ends of the left side of the circular plate-shaped body 51 are respectively provided with a third chamfer C2 and a fourth chamfer, and the upper and lower ends of the right side of the circular plate-shaped body 51 are respectively provided with a third chamfer C2 and a fourth chamfer. Five chamfers C1 and sixth chamfers; so that the positioning piece can be snapped into the second annular groove more smoothly.

As shown in Figures 1 and 2, preferably, after the circular plate-shaped body is clamped into the first annular groove, the protruding length relative to the left side B of the electrode shell is the first length L0, and the length of the second annular groove is the first length L0. The depth L1 is greater than the first length L0; the depth L1 based on the definition of the second annular groove is greater than the first length L0, so as to ensure that the electrode surfaces can adhere to each other when the electrodes are installed.

As shown in Figures 2 and 3, preferably, the length D2 of the second annular groove is greater than the length D3 of the positioning member; the length D2 of the second annular groove can be understood as the maximum diameter, and the length D3 of the positioning member can be understood is the maximum diameter of the positioning member; based on the above-mentioned definition, it is ensured that the positioning member on one electrode will not interfere when it fits the second annular groove of the other electrode.

Among them, the above positioning block is an independent part, which is bonded to the electrode shell through glue, or the positioning block structure and the electrode shell can be made together to form an integrated structure (as shown in Figure 5).

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields , are similarly included in the scope of patent protection of the present invention.

Claims (7)

1. A self-positioning electrode structure is characterized in that, comprising electrode shell, positioning member, sealing ring and electrode core, the top surface of the electrode shell is provided with a first inner cavity, and the electrode core is arranged on the electrode shell, and the left side of the electrode shell is provided with a first inner cavity. A first annular groove and a first flow channel communicated with the first inner cavity are opened on the surface, a second annular groove is opened on the right side of the electrode shell, and the sealing ring and the positioning member are arranged in the first annular groove. 2 . The self-positioning electrode structure according to claim 1 , wherein the sealing ring is located inside the first annular groove, and the positioning member is located outside the first annular groove. 3 . 3 . The self-positioning electrode structure according to claim 1 , wherein the positioning member comprises a circular plate-shaped body, the right side of the circular plate-shaped body is provided with a first through hole, and the left side of the circular plate-shaped body is provided with a first through hole. There is a first through cavity communicating with the first through hole. 4 . The self-positioning electrode structure according to claim 3 , wherein the cavity wall of one end of the first through cavity and the cavity wall of the other end of the second through cavity form a first angle, and the cavity wall of one end of the second annular groove and the cavity wall of the first through cavity form a first angle. The groove walls at the other ends of the two annular grooves form a second angle, and the magnitude of the first angle is equal to the magnitude of the second angle. 5 . The self-positioning electrode structure of claim 4 , wherein the magnitude of the first angle includes 60-120 degrees. 6 . 6 . The self-positioning electrode structure according to claim 3 , wherein the length protruding from the left side of the electrode shell after the circular plate-shaped body is snapped into the first annular groove is the first length, and the second annular The depth of the groove is greater than the first length. 7 . The self-positioning electrode structure of claim 1 , wherein the length of the second annular groove is greater than the length of the positioning member. 8 .

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