A biochemical analyzer multi-wavelength colorimetric cell rapid switching device

Abstract

The utility model discloses a biochemical analysis appearance multiband colorimetric cell quick switching device relates to medical instrument technical field, the utility model discloses a analyzer, the analyzer top fixedly connected with the casing, the casing inside is provided with the irradiation mechanism, the analyzer inside is provided with the mounting mechanism, the utility model discloses the irradiation of starting several Led lamps, and its illumination range is greater than the lens aperture, and the excess light is effectively blocked by the fixed block, and the consistency of optical path is kept, and then the light evenly diffuses to the whole rack through the lens, realizes the even, full -coverage irradiation of the liquid on the frame, and the detection is completed by the illumination detector built -in the rack, when needing switching the light source, the external controller starts the motor drive turntable rotation, drives Led lamp switching to the next station, in this process, the support block continues to provide stable support for the turntable, ensures that the rotation is stable, and the positioning is accurate, and effectively improves the illumination uniformity, switching stability and detection reliability.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer. Background Technology

[0002] Biochemical analyzers are core equipment for clinical biochemical testing in modern medical diagnosis. They quantitatively detect the concentration of various biochemical indicators by analyzing the absorbance of samples such as blood and urine.

[0003] Chinese patent CN201637672U discloses a biochemical analyzer, including a lens, a sample cell, a photocell, and a measurement circuit. It also includes light-emitting diodes, a hollow sphere, an optical fiber, and a light source switching circuit. Several light-emitting diodes of different wavelengths are installed on one side of the hollow sphere's inner cavity, and an optical fiber is installed on the corresponding side. The lens, sample cell, and photocell are sequentially installed on the other end of the optical fiber. The photocell is connected to the measurement circuit, and the light-emitting diodes are connected to the light source switching circuit of the measurement circuit.

[0004] As shown above, the device uses light-emitting diodes to irradiate the liquid. However, the slight differences in the positions of multiple light-emitting diodes may cause deviations in the position of the light source, which in turn leads to deviations in the angle of light emission and easily results in uneven irradiation areas. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer, which solves the problem of uneven irradiation area.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer, comprising an analyzer, a housing fixedly connected to the top of the analyzer, an irradiation mechanism disposed inside the housing, and an installation mechanism disposed inside the analyzer;

[0007] The irradiation mechanism includes a motor fixedly connected to the inner wall of the housing. The output shaft of the motor is fixedly connected to a rotating shaft via a coupling. A turntable is fixedly connected to the bottom of the rotating shaft. Several LED lights are fixedly connected to the top of the turntable. A sliding groove is opened inside the turntable. A support block is slidably connected to the inner wall of the sliding groove. The outer wall of the support block is fixedly connected to the inner wall of the housing. A fixing block is fixedly connected to the inner wall of the analyzer. A lens is fixedly connected to the inner wall of the fixing block.

[0008] Preferably, the installation mechanism includes two guide blocks fixedly connected to the inner wall of the analyzer, a sliding plate slidably connected to the inner wall of the two guide blocks, a positioning ring fixedly connected to the top of the sliding plate, and a placement bracket snapped into the top of the sliding plate.

[0009] Preferably, a fixing column is fixedly connected to the outer wall of the sliding plate, and two fixing frames are fixedly connected to the inner wall of the analyzer. The inner walls of the two fixing frames are threaded with lead screws, and the bottoms of the two lead screws are rotatably connected to limit blocks.

[0010] Preferably, the outer walls of the two limiting blocks are slidably connected to the inner wall of the fixing frame, the inner walls of the two limiting blocks are engaged with mounting blocks, the outer walls of the two mounting blocks are fixedly connected to the outer wall of the placement frame, and the outer walls of the two fixing frames are fixedly connected with positioning blocks, the outer walls of the positioning blocks being in contact with the outer walls of the mounting blocks.

[0011] Preferably, the outer wall of the fixed column penetrates the inner wall of the analyzer and extends to the outer wall of the analyzer. Two fixed housings are fixedly connected to the outer wall of the analyzer. The two fixed housings contain the same parts. A telescopic rod is fixedly connected to the inner wall of the fixed housing, and a semi-circular block is fixedly connected to the outer wall of the telescopic rod.

[0012] Preferably, a spring is fixedly connected to the side of the semicircular block near the telescopic rod, and the end of the spring away from the semicircular block is fixedly connected to the inner wall of the fixed housing. The telescopic rod is located inside the spring, and two semicircular grooves adapted to the semicircular block are provided on the fixed column.

[0013] This utility model has the following beneficial effects:

[0014] 1. This biochemical analyzer features a multi-wavelength colorimetric cell rapid switching device. It uses several LED lamps for illumination, with an illumination range larger than the lens aperture. Excess light is effectively blocked by a fixing block, maintaining the consistency of the optical path. The light is then evenly diffused through the lens to the entire mounting rack, achieving uniform and full coverage of the liquid on the rack. Detection is performed by the built-in light detector in the mounting rack. When a light source needs to be switched, an external controller starts a motor to drive the turntable, switching the LED lamp to the next position. During this process, the support block continuously provides stable support to the turntable, ensuring smooth rotation and accurate positioning, effectively improving illumination uniformity, switching stability, and detection reliability.

[0015] 2. The multi-wavelength colorimetric cell rapid switching device of this biochemical analyzer moves the fixed column by pulling a sliding plate, which simultaneously squeezes the semi-circular blocks on both sides, causing the telescopic rod and spring to retract. This facilitates the mounting of the placement frame onto the positioning ring. By rotating the placement frame to bring the mounting block close to the positioning block, and then rotating the screw to drive the limit block downward, the mounting block can be locked, achieving rapid positioning and fixation of the placement frame. Finally, pushing back the sliding plate causes the fixed column to engage with the semi-circular block under the reaction force of the spring, accompanied by a clear locking sound, completing the entire locking process. This structure is easy to operate, reliable in positioning, and effectively improves clamping efficiency and stability.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the turntable structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing block structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the lens structure of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0023] Figure 6 This is a schematic diagram of the positioning ring structure of this utility model;

[0024] Figure 7 This utility model Figure 6 Enlarged structural diagram at point A in the middle.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Analyzer; 101. Housing; 2. Irradiation Mechanism; 201. Motor; 202. Rotating Shaft; 203. Turntable; 204. LED Lamp; 205. Slide; 206. Support Block; 207. Fixing Block; 208. Lens; 3. Mounting Mechanism; 301. Guide Block; 302. Sliding Plate; 303. Positioning Ring; 304. Placement Frame; 306. Fixing Column; 307. Fixing Frame; 308. Lead Screw; 309. Limiting Block; 310. Mounting Block; 311. Positioning Block; 312. Fixing Housing; 313. Telescopic Rod; 314. Semicircular Block; 315. Spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides two technical solutions:

[0029] Figures 1-4 The first embodiment is shown: a rapid switching device for multi-wavelength colorimetric cells of a biochemical analyzer, including an analyzer 1, a housing 101 fixedly connected to the top of the analyzer 1, an irradiation mechanism 2 disposed inside the housing 101, and an installation mechanism 3 disposed inside the analyzer 1.

[0030] The irradiation mechanism 2 includes a motor 201 fixedly connected to the inner wall of the housing 101. The output shaft of the motor 201 is fixedly connected to a rotating shaft 202 via a coupling. A turntable 203 is fixedly connected to the bottom of the rotating shaft 202. Several LED lights 204 are fixedly connected to the top of the turntable 203. A sliding groove 205 is opened inside the turntable 203. A support block 206 is slidably connected to the inner wall of the sliding groove 205. The outer wall of the support block 206 is fixedly connected to the inner wall of the housing 101. A fixing block 207 is fixedly connected to the inner wall of the analyzer 1. A lens 208 is fixedly connected to the inner wall of the fixing block 207.

[0031] The placement rack 304 has a built-in light detector, which is responsible for measuring the intensity of light after passing through the liquid to be tested, and converting the light signal into an electrical signal so that the system can perform calculations and analysis.

[0032] Several LED lights 204 are activated to illuminate the light, and the illumination range is larger than the aperture of the lens 208. Excess light is effectively blocked by the fixing block 207, maintaining the consistency of the light path.

[0033] Several LED lights 204 are activated for illumination. Since the illumination range of the LED lights 204 is larger than that of the lens 208, the excess part is blocked by the fixing block 207. Then the lens 208 diffuses the light to the entire placement rack 304, illuminating the liquid placed on the placement rack 304. The light is then detected by the built-in light detector inside the placement rack 304. When it is necessary to switch the light source, the motor 201 is started by the external controller, which drives the turntable 203 to rotate. The rotation stops when switching to the next light source. During this process, the support block 206 continuously supports the turntable 203.

[0034] Figures 5-7The second embodiment is shown. The main difference between the second and first embodiments is that the mounting mechanism 3 includes two guide blocks 301 fixedly connected to the inner wall of the analyzer 1. A sliding plate 302 is slidably connected to the inner wall of the two guide blocks 301. A positioning ring 303 is fixedly connected to the top of the sliding plate 302. A placement rack 304 is snapped into the top of the sliding plate 302.

[0035] By setting up the placement rack 304, the liquid to be tested is placed on the placement rack 304 so that it can be tested uniformly in the future.

[0036] A fixed column 306 is fixedly connected to the outer wall of the sliding plate 302. Two fixed frames 307 are fixedly connected to the inner wall of the analyzer 1. A screw rod 308 is threadedly connected to the inner wall of the two fixed frames 307. Limiting blocks 309 are rotatably connected to the bottom of the two screw rods 308. The outer wall of the two limiting blocks 309 is slidably connected to the inner wall of the fixed frame 307. An installation block 310 is snapped into the inner wall of the two limiting blocks 309. The outer wall of the two installation blocks 310 is fixedly connected to the outer wall of the placement frame 304. A positioning block 311 is fixedly connected to the outer wall of the two fixed frames 307. The outer wall of the positioning block 311 is in contact with the outer wall of the installation block 310.

[0037] Rotate the placement bracket 304 to bring the mounting block 310 close to the positioning block 311, and then rotate the screw 308 to drive the limit block 309 to move down, thereby locking the mounting block 310 and realizing the quick positioning and fixing of the placement bracket.

[0038] The outer wall of the fixed column 306 penetrates the inner wall of the analyzer 1 and extends to the outer wall of the analyzer 1. Two fixed housings 312 are fixedly connected to the outer wall of the analyzer 1. The two fixed housings 312 contain the same parts. A telescopic rod 313 is fixedly connected to the inner wall of the fixed housing 312. A semi-circular block 314 is fixedly connected to the outer wall of the telescopic rod 313. A spring 315 is fixedly connected to the side of the semi-circular block 314 near the telescopic rod 313. The end of the spring 315 away from the semi-circular block 314 is fixedly connected to the inner wall of the fixed housing 312. The telescopic rod 313 is located inside the spring 315. Two semi-circular grooves that fit the semi-circular block 314 are opened on the fixed column 306.

[0039] By pulling the sliding plate 302 to move the fixed column 306, the semi-circular blocks 314 on both sides can be squeezed simultaneously, causing the telescopic rod 313 and the spring 315 to retract, thus making it easier to fasten the placement frame 304 onto the positioning ring 303.

[0040] Pull out the sliding plate 302, causing the fixed column 306 to move. As the fixed column 306 moves, it squeezes the two semicircular blocks 314, causing the telescopic rod 313 and spring 315 to retract. Then, the placement frame 304 is fastened onto the positioning ring 303. The placement frame 304 is then manually rotated, causing the mounting block 310 to come close to the positioning block 311. Then, the screw 308 is rotated, causing the limiting block 309 to move downward, thereby limiting the mounting block 310 and fixing the position of the placement frame 304. Then, the sliding plate 302 is pushed back, causing the fixed column 306 to move, squeezing the semicircular blocks 314 on both sides and compressing the telescopic rod 313 and spring 315. When the sliding plate 302 is fully pushed in, the semicircular blocks 314 will be locked into the fixed column 306 due to the reaction force of the spring 315. The operator hears a locking sound, indicating that the sliding plate 302 has been pushed in.

[0041] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical component are not specifically limited; conventional equipment can be used.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0043] 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 rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer, comprising an analyzer (1), wherein a housing (101) is fixedly connected to the top of the analyzer (1), characterized in that, An irradiation mechanism (2) is provided inside the housing (101), and an installation mechanism (3) is provided inside the analyzer (1); The irradiation mechanism (2) includes a motor (201) fixedly connected to the inner wall of the housing (101). The output shaft of the motor (201) is fixedly connected to a rotating shaft (202) via a coupling. A turntable (203) is fixedly connected to the bottom of the rotating shaft (202). Several LED lights (204) are fixedly connected to the top of the turntable (203). A sliding groove (205) is provided inside the turntable (203). A support block (206) is slidably connected to the inner wall of the sliding groove (205). The outer wall of the support block (206) is fixedly connected to the inner wall of the housing (101). A fixing block (207) is fixedly connected to the inner wall of the analyzer (1). A lens (208) is fixedly connected to the inner wall of the fixing block (207).

2. The rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer according to claim 1, characterized in that, The installation mechanism (3) includes two guide blocks (301) fixedly connected to the inner wall of the analyzer (1), and a sliding plate (302) is slidably connected to the inner wall of the two guide blocks (301). A positioning ring (303) is fixedly connected to the top of the sliding plate (302), and a placement rack (304) is snapped into the top of the sliding plate (302).

3. The rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer according to claim 2, characterized in that, The outer wall of the sliding plate (302) is fixedly connected to a fixed column (306), and the inner wall of the analyzer (1) is fixedly connected to two fixed frames (307). The inner walls of the two fixed frames (307) are threadedly connected to lead screws (308), and the bottoms of the two lead screws (308) are rotatably connected to limit blocks (309).

4. The rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer according to claim 3, characterized in that, The outer walls of the two limiting blocks (309) are slidably connected to the inner wall of the fixing frame (307), the inner walls of the two limiting blocks (309) are engaged with the mounting blocks (310), the outer walls of the two mounting blocks (310) are fixedly connected to the outer wall of the placement rack (304), the outer walls of the two fixing frames (307) are fixedly connected with the positioning blocks (311), and the outer walls of the positioning blocks (311) are in contact with the outer walls of the mounting blocks (310).

5. A rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer according to claim 4, characterized in that, The outer wall of the fixed column (306) penetrates the inner wall of the analyzer (1) and extends to the outer wall of the analyzer (1). Two fixed housings (312) are fixedly connected to the outer wall of the analyzer (1). The two fixed housings (312) contain the same parts. A telescopic rod (313) is fixedly connected to the inner wall of the fixed housing (312). A semi-circular block (314) is fixedly connected to the outer wall of the telescopic rod (313).

6. The rapid switching device for multi-wavelength colorimetric cells in a biochemical analyzer according to claim 5, characterized in that, A spring (315) is fixedly connected to the side of the semicircular block (314) near the telescopic rod (313). The end of the spring (315) away from the semicircular block (314) is fixedly connected to the inner wall of the fixed housing (312). The telescopic rod (313) is located inside the spring (315). Two semicircular grooves that are adapted to the semicircular block (314) are opened on the fixed column (306).

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