Installation structure, sampling mechanism and electrolyte analyzer

Abstract

The present invention discloses an electrolyte analyzer installation structure, a sampling mechanism and an electrolyte analyzer, which relate to the field of medical device technology, including a base, a first fixing plate and a second fixing plate vertically connected to the first fixing plate, the first fixing plate and the second fixing plate are respectively arranged horizontally and vertically, the first fixing plate is provided with a first opening running through the middle part, and the first opening is provided with an annular groove with a certain depth around the side, the annular groove has a first support section, a second support section and an arc-shaped connecting section connecting the first support section and the second support section; a first mounting portion is at least partially slidable on the annular groove, and a second mounting portion is snap-connected with the first mounting portion. The present invention facilitates the installation of the sealing assembly by setting the first fixing plate and the second fixing plate, and pushes the first mounting portion and the second mounting portion into the first annular groove for fixation after being snap-connected, and has the advantages of quick disassembly and low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a mounting structure. The present invention also relates to a sampling mechanism and an electrolyte analyzer. Background Art

[0002] Liquid sampling in electrolyte analyzers is an important step in biological sample testing. Before conducting biological sample testing and analysis, the sample must be placed in the test chamber through the liquid aspiration needle for testing. The airtightness during this liquid aspiration process is an important factor affecting the test value. If the airtightness is not good, bubbles will appear during the liquid aspiration process, or even no liquid will be aspirated, affecting the stability of the sample test.

[0003] In most existing sampling mechanisms, the glands are connected by threads between the upper and lower glands and fixed to the mounting base through a circular hole. This connection method has poor airtightness and high component costs. Moreover, the upper and lower glands are connected and fixed to the mounting base through a closed circular hole. Disassembly of the glands requires separating the upper and lower glands, which is time-consuming and labor-intensive. Summary of the Invention

[0004] An object of the present invention is to provide a mounting structure that has good stability and is easy to disassemble; another object of the present invention is to provide a sampling mechanism and an electrolyte analyzer that have good stability and are easy to disassemble.

[0005] In order to solve the above technical problems, the present invention provides a mounting structure, comprising:

[0006] The base comprises a first fixing plate and a second fixing plate vertically connected to the first fixing plate, the first fixing plate and the second fixing plate being arranged horizontally and vertically, respectively, a first opening extending vertically through the middle of the first fixing plate, an annular groove having a certain depth provided around the first opening, the annular groove having a first supporting section, a second supporting section, and an arc-shaped connecting section connecting the first supporting section and the second supporting section;

[0007] The first mounting portion is at least partially slidably disposed on the annular groove, and includes:

[0008] a through hole, provided vertically penetrating the first mounting portion;

[0009] The second mounting portion is engaged with the first mounting portion and includes:

[0010] The groove is formed on the second mounting portion and faces upward, and the bottom end of the groove is connected to a liquid guide portion.

[0011] Furthermore, the first supporting section, the second supporting section and the arc-shaped connecting section are connected at the connection points with limiting grooves;

[0012] The first mounting portion has a first side portion, a second side portion, and an arc portion corresponding to the first supporting section, the second supporting section, and the arc-shaped connecting section, and a limiting protrusion is provided at the connection between the first side portion, the second side portion, and the arc portion;

[0013] The first limiting protrusion and the second limiting protrusion both extend along the first mounting plate, and the heights of the first limiting protrusion and the second limiting protrusion are no greater than the thickness of the first mounting plate.

[0014] Furthermore, a guide ring coaxial with the through hole is provided at the top of the first mounting portion, the inner diameter of the guide ring is not larger than the inner diameter of the through hole, and a second opening with the same opening direction as the first opening is provided on one side of the guide ring.

[0015] Furthermore, both side walls of the second opening extend toward the center of the guide ring to form a first guide surface.

[0016] Furthermore, the guide ring extends obliquely along the inner diameter edge toward the center of the first mounting plate to form a convergent shape.

[0017] Furthermore, the first opening has a first surrounding surface, a second surrounding surface and an arc-shaped connecting surface, the first surrounding surface and the second surrounding surface are both planes, and the first surrounding surface and the second surrounding surface both form an angle with the vertical surface, and the angle is 2-5°.

[0018] Furthermore, the first supporting section and the second supporting section are both provided with a second guide surface inclined downward along a horizontal plane, and the second guide surface forms an angle with the horizontal plane, and the angle is 10-15°.

[0019] Furthermore, a sealing sleeve is provided between the first mounting plate and the second mounting plate, one end of the sealing sleeve is placed in the groove, and the other end abuts against the bottom of the guide ring.

[0020] To solve the above technical problems, the present invention further provides a sampling mechanism, comprising a pipette needle, a drive assembly, a pipette pump, and a mounting structure, wherein the drive assembly is used to drive the pipette needle to move above the first mounting plate, the pipette pump provides negative pressure suction to the pipette needle so that the pipette needle extracts the sample, and the mounting structure adopts the mounting structure described above;

[0021] In order to solve the above technical problems, the present invention also provides an electrolyte analyzer, comprising a sample tray, a sampling mechanism, an analysis module and a printing module, wherein the sampling mechanism adopts the above-mentioned sampling mechanism.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] By providing the first fixing plate and the second fixing plate, the first mounting portion and the second mounting portion are snap-connected and pushed into the first annular groove for fixation, which facilitates installation of the sealing assembly and has the advantages of quick disassembly and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification as part of the technical solution of this application are used to further understand the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] Figure 1 It is the overall structural diagram of the electrolyte analyzer;

[0026] Figure 2 It is a structural diagram of the drive assembly, the pipette needle and the mounting structure;

[0027] Figure 3 It is the overall structural diagram of the installation structure;

[0028] Figure 4 It is a schematic diagram of the exploded structure of the installation structure;

[0029] Figure 5 is a vertical cross-section of the base;

[0030] Figure 6 is a top view of the first mounting plate;

[0031] Figure 7 for Figure 6 A magnified view of part A in the middle;

[0032] Figure 8 Schematic diagram of the three-dimensional structure of the base;

[0033] Figure 9 for Figure 8 Enlarged view of part C in the middle.

[0034] Reference numerals:

[0035] 010-main body;

[0036] 020-sample tray;

[0037] 030-base, 031-first fixing plate, 032-second fixing plate, 033-annular groove, 0331-first supporting section, 0332-second supporting section, 0333-arc-shaped connecting section, 0334-limiting groove, 034-first opening;

[0038] 040 - first mounting portion, 041 - guide ring, 0411 - guide surface, 042 - second opening, 043 - first side portion, 044 - second side portion, 045 - arc-shaped portion, 046 - limiting protrusion;

[0039] 050-second mounting portion, 051-liquid guide portion;

[0040] 060-sealing sleeve;

[0041] 071- buckle, 072- slot;

[0042] 080-Drive component;

[0043] 090-Pipette needle. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0045] It should be noted that the described embodiments are only part of the embodiments of this application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually merely illustrative and should not be regarded as a limitation of this application and its applications.

[0046] Example 1:

[0047] Reference Figure 1 and Figure 2 In this embodiment, an electrolyte analyzer is provided, including a sample tray 020 and a main body 010. The main body 010 includes a sampling mechanism, an analysis module and a printing module. A sample tube containing a sample is placed in the sample tray 020. The sampling mechanism absorbs the sample in the sample tube through a liquid aspiration needle 090 and transports it to a designated position. The analysis module performs analysis, and the printing module outputs the analysis results.

[0048] Among them, the sampling mechanism includes a pipette needle 090, a driving component, a pipette pump and a mounting structure. The driving component is used to drive the pipette needle 090 to move above the first mounting plate, and the pipette pump provides negative pressure suction to the pipette needle 090 so that the pipette needle 090 can extract samples.

[0049] The driving assembly is used to drive the pipette needle 090 to move up and down, and can be driven by a motor and a conveyor belt, or by a gear rack, or an electric telescopic rod and other driving devices.

[0050] Reference Figure 3 and Figure 4 The present invention provides a mounting structure for an electrolyte analyzer, including a base 030 , a first mounting portion 040 and a second mounting portion 050 .

[0051] Specifically, the base 030 has a first fixing plate 031 and a second fixing plate 032. One end of the first fixing plate 031 and one end of the second fixing plate 032 are vertically connected. The first fixing plate 031 and the second fixing plate 032 are respectively arranged horizontally and vertically to form a structurally stable support platform.

[0052] Specifically, a first opening 034 is provided in the middle of the first fixing plate 031, which passes through from top to bottom. A ring groove 033 with a certain depth is provided around the first opening 034. The ring groove 033 has a first support segment 0331, a second support segment 0332 and an arc-shaped connecting segment 0333 connecting the first support segment 0331 and the second support segment 0332. The first opening 034 and the ring groove 033 are used to support the first mounting portion 040.

[0053] The first opening 034 is approximately U-shaped. Correspondingly, the shape formed by the first support segment 0331 , the second support segment 0332 and the arc connection is also approximately U-shaped to better accommodate the first mounting portion 040 .

[0054] First mounting portion 040 can be partially slidably mounted on annular groove 033. Of course, in the most preferred embodiment, first mounting portion 040 can be entirely slidably mounted on annular groove 033. When first mounting portion 040 is placed on annular groove 033, its lower end overlaps the upper end surfaces of first support segment 0331, second support segment 0332, and arcuate connecting segment 0333 of annular groove 033.

[0055] Those skilled in the art will appreciate that the width of the first mounting portion 040 is slightly smaller than the width of the annular groove 033 , so as to facilitate quickly pushing the first mounting portion 040 into the annular groove 033 .

[0056] In addition, a through hole is provided at the center of the first mounting portion 040, which runs through the first mounting portion 040 and allows the pipette needle 090 to absorb the sample in the sample tube through the through hole.

[0057] Specifically, the second mounting portion 050 is engaged with the first mounting portion 040 and has a groove with an upward opening. The bottom end of the groove is connected to a liquid guide portion 051 for connecting to the sample tube.

[0058] A buckle 071 is provided at the lower end of the first mounting portion 040 , and a slot 072 that cooperates with the buckle 071 is provided through the side wall of the second mounting portion 050 , so as to facilitate quick and effective disassembly and assembly of the first mounting portion 040 and the second mounting portion 050 .

[0059] In order to enhance the sealing effect of the first mounting part 040 and the second mounting part 050, a slightly flexible sealing sleeve 060 is placed in the groove of the second mounting part 050. The upper end of the sealing sleeve 060 is in close contact with the lower end surface of the first mounting part 040, and the lower end of the sealing sleeve 060 is in close contact with the bottom wall of the groove of the second mounting part 050.

[0060] Specifically, the sealing sleeve 060 is made of silicone material.

[0061] A guide ring 041 coaxial with the through hole is provided at the top of the first mounting portion 040 . The inner diameter of the guide ring 041 is not larger than the inner diameter of the through hole to avoid the presence of steps that would cause inconvenience in cleaning.

[0062] Furthermore, an annular sleeve corresponding to the guide ring 041 is provided at the lower end of the first mounting portion 040 so that the upper end of the sealing sleeve 060 is placed inside the annular sleeve to improve the sealing effect.

[0063] Reference Figure 5 The sealing sleeve 060 is installed together with the first mounting part 040 and the second mounting part 050. The center of the liquid guiding part 051 of the second mounting part 050 passes through the main body of the second mounting part 050, and the center of the sealing sleeve 060 is also set to pass through up and down; the through holes on the liquid guiding part 051, the sealing sleeve 060 and the first mounting part 040 are coaxially arranged, so that the sample in the sample tube can pass through the liquid guiding part 051 and the sealing sleeve 060 to reach the aspiration needle 090.

[0064] The middle part of the guide ring 041 is set to pass through from top to bottom, and its inner wall surface extends obliquely along the inner diameter edge toward the center of the first mounting plate to form a gathered shape, which is approximately bowl-shaped. The bottom of the gathered guide ring 041 is provided with an opening that passes through from top to bottom near the intersection. The position of the opening is at the center of the first mounting part 040, thereby forming a coaxial arrangement with the above-mentioned liquid guide part 051 and the sealing sleeve 060.

[0065] The lower end of the guide ring 041 protrudes from the lower end surface of the first mounting portion 040, and the upper end of the sealing sleeve 060 is provided with a shape adapted to the guide ring 041 so as to surround the lower end of the guide ring 041 to achieve a better sealing effect and prevent leakage of the sample.

[0066] To enhance the stability and reliability of this mounting structure, limiting grooves 0334 are provided at the junctions of the first support segment 0331, the second support segment 0332, and the arcuate connecting segment 0333. Correspondingly, the first mounting portion 040 comprises a first side portion 043, a second side portion 044, and an arcuate portion 045 corresponding to the first support segment 0331, the second support segment 0332, and the arcuate connecting segment 0333. Limiting protrusions 046, which mate with the limiting grooves 0334, are provided at the junctions of the first side portion 043, the second side portion 044, and the arcuate portion 045. When the first mounting portion 040 is fully inserted into the groove, the two limiting protrusions 046 on the first mounting portion 040 engage with the two limiting grooves 0334 on the first mounting plate, providing a certain degree of limiting and positioning.

[0067] Specifically, the first limiting protrusion 046 and the second limiting protrusion 046 both extend along the first mounting plate, and the height of the first limiting protrusion 046 and the second limiting protrusion 046 is less than the thickness of the first mounting plate.

[0068] Preferably, the height of the first limiting protrusion 046 and the second limiting protrusion 046 is equal to the thickness of the first mounting plate, so as to facilitate integrated processing and save production steps.

[0069] Example 2:

[0070] Reference Figure 3 , which is different from the first embodiment in that: the guide ring 041 is provided with a second opening 042 on one side having the same opening direction as the first opening 034, and the driving assembly is used to drive the aspiration needle 090 to rotate so that the needle tip of the aspiration needle 090 enters the guide ring 041 from the second opening 042; thereby, the present installation structure is applicable to electrolyte analyzers with a variety of different movement modes.

[0071] Example 3:

[0072] Reference Figure 4 、 Figure 6 and Figure 7 , which is different from the first embodiment in that: the first opening 034 has a first surrounding surface, a second surrounding surface and an arc-shaped connecting surface, the first surrounding surface and the second surrounding surface are both planes, and the first surrounding surface and the second surrounding surface both form an angle B with the vertical plane, and the angle B is 2-5°; by providing the first surrounding surface and the second surrounding surface with a certain angle, the first mounting portion 040 and the second mounting portion 050 can be quickly and effectively entered into the first opening 034, thereby improving the efficiency of disassembly and assembly.

[0073] Example 4:

[0074] Reference Figure 8 and Figure 9, which differs from the first embodiment in that both the first support segment 0331 and the second support segment 0332 are provided with a second guide surface 0411 that slopes downwardly along the horizontal plane. The second guide surface 0411 forms an angle D with the horizontal plane, which is 10-15°. Those skilled in the art will appreciate that this angle can be 12°, 14°, or 15°. This angle facilitates the lower end surface of the first mounting portion 040 to overlap the second guide surface 0411, thereby providing guidance for the first mounting portion 040 to move toward the center of the first mounting plate.

[0075] In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. The orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operate in a specific orientation. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A sampling mechanism, comprising a pipette needle, a drive assembly, a pipette pump and a mounting structure, characterized in that: The mounting structure includes: The base comprises a first fixing plate and a second fixing plate vertically connected to the first fixing plate, the first fixing plate and the second fixing plate being arranged horizontally and vertically respectively, a first opening penetrating vertically is provided in the middle of the first fixing plate, an annular groove having a certain depth is provided on the circumference of the first opening, the annular groove having a first supporting section, a second supporting section and an arc-shaped connecting section connecting the first supporting section and the second supporting section, and a limiting groove is provided at the connection between the first supporting section, the second supporting section and the arc-shaped connecting section; The first mounting portion is at least partially slidably arranged on the annular groove, the first mounting portion comprising a through hole, the through hole being arranged to penetrate the first mounting portion in a vertical direction, the first mounting portion having a first side portion, a second side portion, and an arc portion corresponding to the first supporting section, the second supporting section, and the arc connecting section, the first side portion, the second side portion and the arc portion are all provided with a limiting protrusion at the connection between the first side portion, the second side portion and the arc portion, the limiting protrusion extends along the first mounting portion, and the height of the limiting protrusion is not greater than the thickness of the first mounting portion, the top end of the first mounting portion is provided with a guide ring coaxial with the through hole, the inner diameter of the guide ring is not greater than the inner diameter of the through hole, and a second opening is provided on one side of the guide ring in the same opening direction as the first opening, and the guide ring extends obliquely along the inner diameter edge toward the center of the first mounting portion to form a gathered shape; a second mounting portion, engaged with the first mounting portion, the second mounting portion comprising a groove, the groove being formed in the second mounting portion and opening upward, and a liquid guide portion being connected to the bottom end of the groove; A sealing sleeve is provided between the first mounting portion and the second mounting portion, one end of the sealing sleeve is placed in the groove, and the other end abuts against the bottom of the guide ring; The driving assembly is used to drive the pipette needle to move above the first mounting portion; The pipetting pump provides negative pressure suction to the pipetting needle so that the pipetting needle draws the sample.

2. The sampling mechanism according to claim 1, characterized in that: Both side walls of the second opening extend toward the center of the guide ring to form a first guide surface.

3. The sampling mechanism according to claim 1, characterized in that: The first opening has a first surrounding surface, a second surrounding surface and an arc-shaped connecting surface. The first surrounding surface and the second surrounding surface are both planes, and both the first surrounding surface and the second surrounding surface form an angle with the vertical surface, and the angle is 2-5°.

4. The sampling mechanism according to claim 1, characterized in that: The first supporting section and the second supporting section are both provided with a second guide surface inclined downward along a horizontal plane, and the second guide surface forms an angle with the horizontal plane, and the angle is 10-15°.

5. An electrolyte analyzer, comprising a sample tray, a sampling mechanism, an analysis module and a printing module, characterized in that: The sampling mechanism adopts the sampling mechanism according to any one of claims 1 to 4.

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