Analyzer detection device with reaction cup disc mechanism

Abstract

The utility model discloses an analyzer detection device with a reaction cup disc mechanism. The analyzer detection device comprises the reaction cup disc mechanism and a sampling mechanism which are arranged on a machine table, the reaction cup disc mechanism comprises a tray with a plurality of placing positions; the placing position is a concave part and is used for placing a reaction cup; the placing positions are arranged in an annular array mode. A tray driving motor for driving the tray to rotate is arranged at the bottom of the tray; the tray is also provided with a magnet and a detection board card; the magnet is positioned below the placing position; the detection board card is positioned below the placement position and is used for carrying out biochemical detection on liquid in the reaction cup; the sampling mechanism comprises a lifting driving unit, a rotary driving unit, a swing arm and a sampling needle; the sampling device is arranged at the outer end part of the swing arm; the lifting driving unit is used for driving the swing arm to lift; the rotary driving unit is used for driving the swing arm to rotate so as to drive the sampling needle to rotate to execute sampling and sample adding operations. According to the analyzer detection device with the reaction cup disc mechanism, the detection efficiency can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to an analyzer detection device with a reaction cup and disk mechanism. Background Art

[0002] Vitamins are a type of trace organic substances that humans and animals must have to maintain normal physiological functions. They play an important role in human growth, metabolism, and development. The vitamin content in the body is an effective indicator of nutritional status, and vitamin intake is particularly important for pregnant women and infants. Vitamin monitoring is gradually being paid attention to in clinic as a means to evaluate the rational use of drugs, improve the safety and effectiveness of vitamin use, and realize the individualization of vitamin treatment. The existing vitamin analyzer detection method usually loads the sample to be tested into the reaction cup, and the detection electrode directly enters the sample in the reaction cup for detection. This method requires the detection electrode and the reaction cup to be cleaned and repaired after each test, which not only limits the number of tests, but also affects the detection efficiency.

[0003] Therefore, it is necessary to design a novel analyzer detection device with a reaction cup and disk mechanism. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an analyzer detection device with a reaction cup and disk mechanism. The analyzer detection device with the reaction cup and disk mechanism has multiple detection positions and can achieve efficient detection.

[0005] The technical solutions of the utility model are as follows:

[0006] An analyzer detection device with a reaction cup and disk mechanism, comprising a reaction cup and disk mechanism and a sampling mechanism arranged on a machine platform;

[0007] The reaction cup tray mechanism includes a tray with multiple placement positions; the placement positions are recessed portions for placing reaction cups; the placement positions are arranged in a circular array; a tray drive motor is provided at the bottom of the tray for driving the tray to rotate;

[0008] The tray is also provided with a magnet and a detection board; the magnet is located below the placement position; the detection board is located below the placement position and is used to perform biochemical testing on the liquid in the reaction cup;

[0009] The sampling mechanism includes a lifting drive unit, a rotation drive unit, a swing arm and a sampling needle; the sampling is set at the outer end of the swing arm; the lifting drive unit is used to drive the swing arm to lift and lower; the rotation drive unit is used to drive the swing arm to rotate, thereby driving the sampling needle to rotate to perform sampling and adding operations.

[0010] The reaction cup tray mechanism comprises a bottom tray, a detection board, a magnet mounting tray and an upper tray which are stacked in sequence from bottom to top.

[0011] There are ejector pins on the upper side of the detection board and a row seat on the lower side.

[0012] There are 5 detection boards, and the detection boards are fan-shaped.

[0013] A plurality of support columns are provided between the detection board and the magnet mounting plate.

[0014] The support column is a double-ended internal threaded pin.

[0015] There are contacts on the bottom of the reaction cup.

[0016] A reaction cup strip is arranged on the tray; each reaction cup strip is provided with a plurality of recessed portions serving as setting positions.

[0017] Reaction cup plate and sampling needle positioning: using zero position optical coupler, code disk (or angle sensor) or stepper motor.

[0018] Beneficial effects:

[0019] The analyzer detection device with a reaction cup and disk mechanism of the present utility model has the following characteristics:

[0020] 1. By setting contacts at the bottom of the reaction cup, the electrode contact mode is changed to indirect contact, avoiding contamination and eliminating the need to clean the detection electrode.

[0021] 2. The reaction cup is a disposable consumable, which avoids reuse, is easy to take and put, and the results are more accurate.

[0022] 3. Through reasonable arrangement, up to 40 samples can be tested simultaneously (in this example, there are 40 reaction cup racks in total, and up to 40 groups of samples can be tested at one time), with high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram (stereoscopic diagram) of the overall structure of an analyzer detection device with a reaction cup and disk mechanism;

[0024] Figure 2 It is a schematic diagram of the overall structure of the analyzer detection device with a reaction cup and disk mechanism (top view);

[0025] Figure 3 is a schematic diagram of the reaction cup and tray mechanism;

[0026] Figure 4 It is a schematic diagram of the top tray structure;

[0027] Figure 5 It is a schematic diagram of the bottom tray structure;

[0028] Figure 6 It is a structural diagram of a single detection board;

[0029] Figure 7 This is a structural diagram of the combination of five detection boards.

[0030] Explanation of the numbers: 1- bottom tray, 2- detection board, 3- support column, 4- magnet mounting plate, 5- reaction cup strip support; 6- upper tray, 7- reaction cup strip; 8- notch, 9- positioning hole; 10- ejector pin, 11- row seat; 12- reaction cup, 1 DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0032] Example 1: Figure 1-7 An analyzer detection device with a reaction cup and tray mechanism. This example is mainly used in vitamin analyzers. The sampling needle takes a sample from the sample tray and then loads it into the tray for detection reaction. A transmission assembly is set at the bottom of the reaction cup tray. The motor drives the reaction cup tray to rotate as a whole. Similarly, the sampling needle assembly can also move up and down and rotate through the transmission assembly. At this time, the movement trajectory of the sampling needle and the movement trajectory of the reaction cup tray form an intersecting circle, so the sampling needle can access any station of the reaction cup tray. For details, see Figure 1-2 .

[0033] The cuvette tray primarily consists of a bottom tray, a test board, a magnet mounting plate, and a cuvette holder. The bottom tray 1 serves as the baseplate supporting the entire assembly. The test board 2 is assembled between the bottom tray and the magnet mounting plate using support columns 3. The magnet mounting plate 4 is tightly mounted above the test board. The cuvette strip holder 5 is mounted on the upper side of the magnet mounting plate and is screwed to the upper tray 6, which is connected to the central shaft. A transmission drive rotates the entire cuvette tray from the underside. The cuvette strip holder has 40 slots, each housing a separate cuvette strip 7. Once the cuvette strip 7 is placed in a slot, it is fixed in place due to front, back, left, and right limiters and the attraction of the magnet below, preventing relative movement. One cuvette strip can hold six test cuvettes.

[0034] Bottom tray 1, the base of the entire assembly, requires slots corresponding to the upper seats on test board 2, allowing the lower ejector pins to move upward and contact the seats. Bottom tray 1 is provided with positioning holes for mounting support posts 3, which are directly connected to magnet mounting plate 4. This ensures the relative positioning between magnet mounting plate 4 and bottom tray 1 is accurate, minimizing detection errors.

[0035] The support column 3 is a double-ended internal threaded pin, both ends of which can be connected by threads and precise positioning can be achieved through tolerance matching.

[0036] There are five detection boards 2, evenly distributed around the circumference of the magnet mounting plate and assembled snugly against the magnet mounting plate. A row of seats is welded to the underside of the detection board, which cooperates with the ejector pins of the lower motion mechanism to achieve the detection function. Spring ejector pins are welded to the upper side. The spring ejector pins are arranged in a circular array of eight rows on each detection board, with each row having six groups of ejector pins, for a total of 40 rows and 240 groups. The row of seats is set between two rows of ejector pins, with a fixed relative position and angle with each row of ejector pins. The row of seats also consists of eight rows, corresponding one-to-one with each row of ejector pins. They make corresponding contact with the contacts at the bottom of the upper reaction cup. The underside of the magnet mounting plate 4 is assembled snugly against the detection board 2. The ejector pins on the upper side of the detection board 2 pass through the gap holes on the magnet mounting plate, with the ejector pin tips slightly protruding from the upper side of the magnet mounting plate. Magnet holes are provided between the ejector pin gap holes on the magnet mounting plate. Magnets are installed to adsorb the iron cores on both sides of the bottom of the reaction cup to ensure contact stability between the contacts at the center of the bottom of the reaction cup and the spring ejector pins on the upper side of the detection board.

[0037] The cuvette holder 5 is connected to the upper tray 6 via screws, and the upper tray is directly connected to the transmission shaft. The cuvette holder has a total of 40 slots, each corresponding to the position of a single-row ejector pin on the test board. The slots are used to place cuvettes. The cuvette holder 7 is a strip-shaped cuvette holder, each of which has 6 positions for cuvettes. The cuvette holder is provided with a stop groove to prevent the cuvette from slipping out when the cuvette is removed and placed, and to limit the orientation of the cuvette to ensure stable contact of the contact at the bottom of the cuvette. When the cuvette is placed in a slot on the cuvette holder, the cuvette holder is restricted in movement by the slot. At the same time, the iron core at the bottom of the cuvette is attracted by the magnet on the magnet mounting plate. At the same time, the spring ejector at the bottom of the cuvette is compressed to ensure close contact between the contact and the ejector pin. The ejector pin and contact are arranged in an equilateral triangle shape, so that the force is evenly distributed during magnet attraction, preventing the cuvette from tilting or tilting during testing, resulting in poor contact.

[0038] This solution achieves indirect contact between the sample and the detection electrode by setting up magnets and adding contacts on the detection board. It can set up multiple groups of detection at the same time, eliminating the cleaning process and improving detection efficiency.

[0039] Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. An analyzer detection device with a reaction cup and disk mechanism, characterized in that: It includes a reaction cup and tray mechanism and a sampling mechanism arranged on the machine platform; The reaction cup tray mechanism includes a tray with multiple placement positions; the placement positions are recessed portions for placing reaction cups; the placement positions are arranged in a circular array; a tray drive motor is provided at the bottom of the tray for driving the tray to rotate; The tray is also provided with a magnet and a detection board; the magnet is located below the placement position; the detection board is located below the placement position and is used to perform biochemical testing on the liquid in the reaction cup; The sampling mechanism includes a lifting drive unit, a rotation drive unit, a swing arm and a sampling needle; the sampling is set at the outer end of the swing arm; the lifting drive unit is used to drive the swing arm to lift and lower; the rotation drive unit is used to drive the swing arm to rotate, thereby driving the sampling needle to rotate to perform sampling and adding operations.

2. The analyzer detection device with a reaction cup and disk mechanism according to claim 1, characterized in that: The reaction cup tray mechanism comprises a bottom tray, a detection board, a magnet mounting tray and an upper tray which are stacked in sequence from bottom to top.

3. The analyzer detection device with a reaction cup and disk mechanism according to claim 2, characterized in that: There are ejector pins on the upper side of the detection board and a row seat on the lower side.

4. The analyzer detection device with a reaction cup and disk mechanism according to claim 2, characterized in that: There are 5 detection boards, and the detection boards are fan-shaped.

5. The analyzer detection device with a reaction cup and disk mechanism according to claim 2, characterized in that: A plurality of support columns are provided between the detection board and the magnet mounting plate.

6. The analyzer detection device with a reaction cup and disk mechanism according to claim 5, characterized in that: The support column is a double-ended internal threaded pin.

7. The analyzer detection device with a reaction cup and disk mechanism according to claim 1, characterized in that: There are contacts on the bottom of the reaction cup.

8. The analyzer detection device with a reaction cup and disk mechanism according to any one of claims 1 to 7, characterized in that: A reaction cup strip is arranged on the tray; each reaction cup strip is provided with a plurality of recessed portions serving as setting positions.

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