A micro-spectrophotometer detection tank for biochemical analyzer

Abstract

The utility model belongs to the technical field of spectrophotometer, concretely relates to a micro spectrophotometer detection groove for biochemical analyzer, including spectrophotometer body, is set up with the detection groove body on spectrophotometer body, is provided with the sealing cover on the detection groove body, is provided with two groups of symmetrical detectors on the detection groove body both sides inner wall, is provided with rotating assembly on the detection groove body bottom inner wall, is installed with the bearing disc on rotating assembly, is installed with the fixed ring on the bearing disc, is set up with sixteen movable holes on the fixed ring, is provided with the elastic component in each movable hole inside, the one end of elastic component is provided with the pulley, the other end of elastic component sets up the rack that makes the colorimetric dish enter, is provided with the connecting rod in the sealing cover bottom. The device can greatly reduce manual intervention, shorten total detection time, improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of spectrophotometer technology, specifically relating to a miniature spectrophotometer detection cell for use in biochemical analyzers. Background Technology

[0002] In the field of biochemical analysis, biochemical analyzers are crucial instruments that utilize photoelectric colorimetry to measure specific chemical components in bodily fluids. They are widely used in hospitals at all levels, epidemic prevention stations, family planning service stations, and other institutions. Spectrophotometers, as one of the core components of biochemical analyzers, play a key role in the accuracy and efficiency of test results.

[0003] Traditional spectrophotometer detection cells present several problems in practical use. Firstly, the operation process is cumbersome when performing comparative testing of multiple samples. Previously, operators typically had to manually change cuvettes multiple times, placing different samples sequentially between detectors. This not only consumes a significant amount of time, but the frequent manual operation is also prone to introducing errors. For example, changing cuvettes may lead to sample contamination or misplacement of the cuvettes, thus affecting the accuracy of the test results.

[0004] To address this, we propose a miniature spectrophotometer detection cell for biochemical analyzers. This device can significantly reduce manual intervention, shorten the total detection time, and improve work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a miniature spectrophotometer detection cell for biochemical analyzers. This device can significantly reduce manual intervention, shorten the total detection time, and improve work efficiency.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A detection slot for a miniature spectrophotometer used in a biochemical analyzer includes a spectrophotometer body, a detection slot formed on the spectrophotometer body, a sealing cover on the detection slot, two sets of symmetrical detectors on the inner walls of both sides of the detection slot, a rotating assembly on the inner wall of the bottom of the detection slot, a support plate mounted on the rotating assembly, a fixing ring mounted on the support plate, and sixteen movable holes on the fixing ring. Each movable hole contains an elastic component, one end of which is equipped with a pulley, and the other end of which is equipped with a holder for inserting a cuvette.

[0008] The bottom of the sealing cover is provided with a connecting rod, and the bottom of the connecting rod is provided with a support plate that allows the pulley to roll on the outside. The outer side of the support plate is provided with two symmetrical protrusions.

[0009] Furthermore, the sealing cover is hinged to the detection tank, and a sealing layer is provided on the sealing cover.

[0010] Furthermore, the rotating assembly includes a miniature stepper motor disposed on the inner wall of the bottom of the detection tank, and the output end of the miniature stepper motor is connected to the support plate.

[0011] Furthermore, the support plate has a insertion hole, and the bottom of the fixing ring is provided with an insertion rod, which is inserted into the insertion hole.

[0012] Furthermore, the elastic component includes a movable rod disposed inside the movable hole, a limiting plate being provided at one end of the movable rod, a rolling pulley being provided on one side of the limiting plate, the other end of the movable rod being connected to the placement frame, and a spring being provided on the movable rod, the spring being located between the limiting plate and the inner wall of the fixing ring.

[0013] Furthermore, the placement rack includes a connecting plate connected to the movable rod, and two fixing plates are provided on the side of the connecting plate away from the movable rod, with a through hole provided on the top fixing plate.

[0014] Furthermore, both the pulley and the support plate have smooth surfaces on their outer sides.

[0015] The technical effects achieved by this utility model are as follows:

[0016] First, the sealing cap is opened to remove the retaining ring from under the support plate. The sample to be tested and the control sample are placed into two cuvettes respectively, and placed symmetrically on a set of racks. This operation is repeated until eight sets of solutions are loaded. Then, the retaining ring is installed on the support plate, the sealing cap is closed, and the position of the pulley corresponds to the position of the support plate. Then, the rotating component is started. The rotating component drives the support plate to rotate the retaining ring. The retaining ring drives the elastic component to make the pulley roll on the support plate. When the pulley on one of the symmetrical sets of cuvettes slides onto the protrusion, the pulley drives the elastic component to move the cuvette on the rack between two symmetrical detectors for detection. This process is repeated in sequence. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the detection tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the fixing ring of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the support plate of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Spectrophotometer body; 3. Detection tank; 4. Sealing cover; 5. Detector; 6. Support plate; 7. Fixing ring; 8. Pulley; 10. Support plate; 11. Protrusion; 12. Miniature stepper motor; 14. Connecting rod; 15. Movable rod; 16. Spring; 17. Connecting plate; 18. Fixing plate. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figures 1-4 As shown, a detection cell for a micro spectrophotometer used in a biochemical analyzer includes a spectrophotometer body 1, a detection cell 3 on the spectrophotometer body 1, a sealing cover 4 on the detection cell 3, and two sets of symmetrical detectors 5 on the inner walls of both sides of the detection cell 3. One set of detectors 5 detects the solution in the control cuvette, and the other set of detectors 5 detects the solution in the cuvette to be tested (i.e., one is a control cuvette and the other is a test cuvette). A rotating assembly is provided on the inner wall of the bottom of the detection cell 3. A support plate 6 is installed on the rotating assembly. A fixing ring 7 is installed on the support plate 6. The fixing ring 7 has sixteen movable holes. Each movable hole is provided with an elastic component. One end of the elastic component is provided with a pulley 8, and the other end of the elastic component is provided with a placement rack for the cuvette to enter.

[0025] The bottom of the sealing cover 4 is provided with a connecting rod, and the bottom of the connecting rod is provided with a support plate 10 for the pulley 8 to roll on the outside. The outer side of the support plate 10 is provided with two symmetrical protrusions 11.

[0026] Detector 5 typically consists of three parts:

[0027] Light source: emits broadband light (such as halogen lamps or LEDs). Monochromator: breaks down the light source into single wavelengths of light (through a grating or prism).

[0028] Photoelectric sensors: receive transmitted light and convert it into electrical signals (such as photodiodes or CCDs).

[0029] Two sets of detectors 5 are symmetrically distributed on the inner walls of both sides of the detection slot, forming independent optical paths.

[0030] Each detector group 5 contains a pair of transmitters and receivers: emitting monochromatic light (light source + monochromator) and receiving transmitted light (photoelectric sensor) are existing technologies and will not be elaborated on here.

[0031] The sealing cover 4 is hinged to the detection tank 3. A sealing layer is provided on the sealing cover 4. This design allows the sealing cover 4 to be opened and closed, while the sealing layer can prevent dust and impurities from entering during the detection process.

[0032] The rotating assembly includes a miniature stepper motor 12 mounted on the inner wall of the bottom of the detection tank 3. The output end of the miniature stepper motor 12 is connected to the support plate 6. The miniature stepper motor 12 drives the support plate 6 to perform stepping motion to achieve the rotation of the fixed ring 7.

[0033] In order to enable the fixing ring 7 to be installed and removed, the bearing plate 6 is provided with a plug hole, and the bottom of the fixing ring 7 is provided with a plug rod 14, which is inserted into the plug hole. This arrangement makes it convenient to install and remove the fixing ring 7.

[0034] The elastic component includes a movable rod 15 disposed inside the movable hole. One end of the movable rod 15 is provided with a limiting plate, and a rolling pulley 8 is provided on one side of the limiting plate. The other end of the movable rod 15 is connected to the placement frame, and a spring 16 is provided on the movable rod 15. The spring 16 is located between the limiting plate and the inner wall of the fixing ring 7.

[0035] The placement rack includes a connecting plate 17 connected to the movable rod 15. Two fixing plates 18 are provided on the side of the connecting plate 17 away from the movable rod 15, and the top fixing plate 18 has a through hole.

[0036] The inside of the through hole is lined with a rubber layer, which helps prevent damage to the cuvette from hard impacts.

[0037] When the pulley 8 slides to the position of the protrusion 11, the pulley 8 drives the movable rod 15 to move inside the movable hole, thereby moving the cuvettes on the two fixed plates 18 into the space between the two detectors 5. The fixed plates 18 are designed so that the cuvettes can enter through the top through hole and be supported by the bottom fixed plates 18.

[0038] Both the pulley 8 and the support plate 10 have smooth surfaces on their outer sides. These smooth surfaces reduce friction and facilitate quick response to the movement of the cuvette.

[0039] The working principle of this utility model is as follows: First, the sealing cover 4 is opened to remove the fixing ring 7 from under the support plate 6. The sample to be tested and the control sample are respectively placed into two cuvettes and placed symmetrically on a set of racks. This operation is repeated until eight sets of solutions are loaded. Then, the fixing ring 7 is installed on the support plate 6, the sealing cover 4 is closed, and the position of the pulley 8 corresponds to the position of the support plate 10. Then, the rotating component is started, and the rotating component drives the support plate 6 to rotate the fixing ring 7. The fixing ring 7 drives the elastic component to make the pulley 8 roll on the support plate 10. When the pulley 8 on one of the symmetrical cuvettes slides onto the protrusion 11, the pulley 8 drives the elastic component to make the cuvette on the rack enter between two symmetrical detectors 5 for detection. This process is repeated in sequence.

[0040] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A detection cell for a miniature spectrophotometer used in a biochemical analyzer, comprising a spectrophotometer body (1), characterized in that: The spectrophotometer body (1) has a detection groove (3) and a sealing cover (4) on the detection groove (3). Two sets of symmetrical detectors (5) are provided on the inner walls of both sides of the detection groove (3). A rotating component is provided on the inner wall of the bottom of the detection groove (3). A support plate (6) is installed on the rotating component. A fixing ring (7) is installed on the support plate (6). Sixteen movable holes are provided on the fixing ring (7). An elastic component is provided inside each movable hole. A pulley (8) is provided at one end of the elastic component. A placement rack for the cuvette to enter is provided at the other end of the elastic component. The sealing cover (4) is provided with a connecting rod at the bottom, and a support plate (10) is provided at the bottom of the connecting rod to make the pulley (8) roll on the outside. Two symmetrical protrusions (11) are provided on the outside of the support plate (10).

2. The detection cell for a miniature spectrophotometer in a biochemical analyzer according to claim 1, characterized in that: The sealing cover (4) is hinged to the detection tank (3), and a sealing layer is provided on the sealing cover (4).

3. The detection cell for a miniature spectrophotometer in a biochemical analyzer according to claim 1, characterized in that: The rotating assembly includes a micro stepper motor (12) disposed on the inner wall of the bottom of the detection tank (3), and the output end of the micro stepper motor (12) is connected to the bearing plate (6).

4. The detection cell for a miniature spectrophotometer in a biochemical analyzer according to claim 1, characterized in that: The support plate (6) has a plug hole, and the bottom of the fixing ring (7) is provided with a plug rod (14), which is inserted into the plug hole.

5. The detection cell for a miniature spectrophotometer in a biochemical analyzer according to claim 1, characterized in that: The elastic component includes a movable rod (15) disposed inside the movable hole. One end of the movable rod (15) is provided with a limiting plate, and a rolling pulley (8) is provided on one side of the limiting plate. The other end of the movable rod (15) is connected to the placement frame, and a spring (16) is provided on the movable rod (15). The spring (16) is located between the limiting plate and the inner wall of the fixing ring (7).

6. The detection cell for a miniature spectrophotometer in a biochemical analyzer according to claim 5, characterized in that: The placement rack includes a connecting plate (17) connected to the movable rod (15). Two fixing plates (18) are provided on the side of the connecting plate (17) away from the movable rod (15), and the top fixing plate (18) has a through hole.

7. The detection cell for a miniature spectrophotometer in a biochemical analyzer according to claim 1, characterized in that: Both the pulley (8) and the support plate (10) have smooth surfaces on their outer sides.

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