A sample analyzer

Abstract

The utility model discloses a sample analyzer, including sample module, sample dispensing module, reagent module, reagent dispensing module, reaction subassembly, wash cup module and blowing device, blowing device is assembled on the incubation support spare, and the gas of blowing device blows towards the inside of the code tooth part of colorimetric cup ring, and the outside of colorimetric cup ring is inclined plane structure, and the bottom surface of colorimetric cup ring is equipped with first water absorbing cotton layer, and the inside inclined plane of colorimetric cup ring is equipped with second water absorbing cotton layer. The utility model whole is through the combination of blowing device, water absorbing cotton layer and outside inclined plane to form " blow - suck - guide " multiple protection, reduces the accumulation and drop of condensed water on each surface of ring, reduces short circuit and corrosion risk, improves the reliability and stability of long -term operation of optical module.

Description

Technical Field

[0001] This utility model relates to the field of colorimetric analysis instrument technology, and in particular to a sample analyzer. Background Technology

[0002] In the existing technology, because the space around the colorimetric cup ring is relatively narrow, it forms a relatively closed space. Below it is warm circulating water in the incubation tank. Due to heat exchange, condensation will form on the sides and top and bottom surfaces of the metal ring. When condensation droplets appear on the teeth of the metal ring or when condensation droplets on the ring fall onto the photoelectric detection board and damage the circuit board, it will cause abnormal photoelectric triggering interval time, which will affect the detection and analysis of the instrument's optical module.

[0003] To prevent condensation, the main current measures are to use a cuvette ring made of plastic with low thermal conductivity or to blow air onto the ring with a fan. However, these two measures have the following drawbacks: 1. The diameter of the colorimetric cup ring is relatively large and the wall thickness is relatively small. The rigidity of the plastic ring is relatively small, which poses a significant risk of deformation. Furthermore, the processing precision of the plastic ring is difficult to control, resulting in higher processing costs. 2. When making plastic colorimeter cup rings into molded parts, high processing costs are still required to ensure high precision.

[0004] 3. When using a fan to blow on the surface of the cuvette ring, dust and other impurities are easily blown into the cuvette, affecting the accuracy of the test. Moreover, due to the obstruction of the cuvette and incubation tank, it is generally difficult to blow the fan to the bottom of the ring, thus limiting its effectiveness in preventing condensation. On the other hand, due to the small space under the ring, it is difficult to install a fan under the ring. Utility Model Content

[0005] To address the above problems, this utility model provides a sample analyzer, the specific technical solution of which is as follows: Includes a sample module for holding the sample; The sample dispensing module is used to draw in and dispense the sample; The reagent module is used to hold the reagents; A reagent dispensing module is used to draw and dispense the reagents; The reaction assembly includes a cuvette for biochemical detection and a cuvette ring that rotates the cuvette; the sample dispensing module dispenses the aspirated sample into the cuvette; the reagent dispensing module dispenses the aspirated reagent into the cuvette; the cuvette ring has a toothed portion and a connecting portion, the connecting portion being connected to the cuvette, and the toothed portion being configured with a photoelectric detection plate to determine the rotational position of the cuvette; A cup washing module is used to clean the reaction cups. The cup washing module includes a suction needle, a vacuum pump connected to the suction needle, and a vacuum tank connected to the vacuum pump. The vacuum tank sucks up the waste liquid in the reaction cups through the suction needle, and the vacuum pump removes the air from the vacuum tank. The condensate removal assembly includes an air blowing device, one end of which is connected to the vacuum pump and the other end is directed toward the toothed portion of the cuvette ring. When the vacuum pump exhausts gas, it blows the exhaust gas toward the toothed portion.

[0006] By directly installing an air blowing device on the incubation support and precisely aligning the airflow with the inside of the code teeth, condensed water droplets can be instantly peeled off during the rotation of the ring, preventing water droplets from falling onto the photoelectric detection plate and ensuring stable optical detection.

[0007] Furthermore, the outer surface of the cuvette ring is a beveled structure.

[0008] The sloping structure forms a guide surface that is higher on the outside and lower on the inside, guiding the condensate back to the incubation tank and further isolating the contact path between the condensate and the photoelectric detection plate, thereby improving system reliability.

[0009] Furthermore, the bottom surface of the colorimetric cup ring is provided with a first absorbent cotton layer.

[0010] Furthermore, the inner inclined surface of the colorimetric cup ring is provided with a second absorbent cotton layer.

[0011] The first and second absorbent cotton layers cover areas where condensation tends to accumulate, absorbing the condensation and reducing the probability of water droplets forming.

[0012] Furthermore, the first absorbent cotton layer and the second absorbent cotton layer each include an absorbent layer and an adhesive layer made of absorbent material, the adhesive layer being adhered to one side of the absorbent layer, and the absorbent layer being adhered to the cuvette ring through the adhesive layer.

[0013] Traditional absorbent materials are difficult to fix and time-consuming to disassemble and replace. By using an adhesive layer, the absorbent layer can be quickly installed and replaced, reducing maintenance costs and increasing the online time of the device.

[0014] Furthermore, the air blowing device includes a steel pipe fixing block, an air blowing steel pipe, and an air pipe; The air-blowing steel pipe is fixedly installed in the first through hole of the steel pipe fixing block, and one end of the air-blowing steel pipe is connected to the air pipe.

[0015] The modular design of the air blowing device integrates the steel pipe, air pipe and fixing block into one unit, which facilitates assembly and subsequent maintenance.

[0016] Furthermore, the steel pipe fixing block has a convex structure, and the first through hole is located on the convex portion along the direction of the main body. The protruding portion is also provided with a set screw, which fixes the air-blowing steel pipe through a screw hole, the screw hole being perpendicular to the axial direction of the first through hole.

[0017] The stepless locking and rapid adjustment are achieved by using set screws, ensuring that the air-blowing steel pipe is always in the optimal purging position and improving versatility.

[0018] Furthermore, the main body is provided with at least one second through hole, and the steel pipe fixing block is fixed to the incubation support by screws inserted into the second through hole.

[0019] The incubation support has a compact structure and few fixing points. It can be stably installed by using the second through hole and screws, without the need for additional brackets, thus saving space.

[0020] Furthermore, one end of the air tube is interference-fitted with one end of the air blowing steel tube.

[0021] The air tube connection is prone to leakage or detachment, affecting the purging stability. By using an interference fit to form a self-sealing connection, assembly is quick and airtightness is reliable.

[0022] Furthermore, a gap is provided between the gas outlet of the air-blowing steel pipe and the code tooth portion, and the air-blowing direction of the air-blowing steel pipe is inclined relative to the surface of the code tooth portion.

[0023] The clearance fit and tilted purging ensure that condensate is effectively removed while avoiding liquid splashing, thus guaranteeing detection accuracy.

[0024] The beneficial effects of this utility model are as follows: This invention utilizes an air-blowing device directly mounted on the incubation support, directing the airflow towards the inner side of the ring teeth of the cuvette. This allows for the immediate removal of condensate droplets during ring rotation. The outer surface of the cuvette ring has a sloping structure, forming a guide surface that is higher on the outside and lower on the inside. This guides the condensate back to the incubation tank without the need for additional components, effectively blocking the contact path between the condensate and the photoelectric detection plate. A first absorbent cotton layer is placed on the bottom surface of the cuvette ring, and a second absorbent cotton layer is placed on the inner sloping surface. These two layers of absorbent cotton cover areas where condensate easily accumulates, directly absorbing the condensate and further reducing the probability of droplet formation and dripping. The overall device, through the combination of the air-blowing device, absorbent cotton layers, and outer sloping surface, forms a multi-layered "blowing-absorbing-guiding" protection system. This significantly reduces the accumulation and dripping of condensate on the surfaces of the ring, lowers the risk of short circuits and corrosion, and improves the long-term reliability and stability of the optical module. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the colorimetric cup ring with the water-absorbing cotton attached.

[0026] Figure 2This is a schematic diagram of the colorimetric cup ring structure with absorbent cotton attached, viewed from below.

[0027] Figure 3 This is a schematic diagram showing the position and structure of the colorimetric cup ring and the incubation support.

[0028] Figure 4 This is a schematic diagram showing the position and structure of the colorimeter cup, colorimeter cup ring, and marking teeth.

[0029] Figure 5 This is a schematic diagram of the air blowing device.

[0030] Figure 6 This is a schematic diagram of the air blowing device assembly structure.

[0031] Figure 7 This is a schematic diagram showing the position and structure of the colorimetric cup ring and the air blowing device.

[0032] Explanation of reference numerals in the attached drawings: 1-colorimetric cup, 2-colorimetric cup ring, 3-incubation support, 4-toothed part, 5-first absorbent cotton layer, 6-second absorbent cotton layer, 7-photoelectric detection plate, 8-air blowing device, 9-air blowing steel pipe, 10-steel pipe fixing block, 11-air pipe, 12-set screw, 13-screw, 14-first through hole, 15-second through hole, 16-incubation tank. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0034] In the description of the embodiments of this utility model, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly used when the utility model product is in use. These are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Example 1 Embodiment 1 of this utility model discloses a sample analyzer, such as Figure 3 , Figure 6 and Figure 7 As shown, the details are as follows: Includes a sample module for holding the sample; The sample dispensing module is used to draw in and dispense the sample; The reagent module is used to hold the reagents; A reagent dispensing module is used to draw and dispense the reagents; The reaction assembly includes a cuvette 1 for biochemical detection and a cuvette ring 2 that drives the cuvette to rotate; the sample dispensing module dispenses the aspirated sample into the cuvette 1; the reagent dispensing module dispenses the aspirated reagent into the cuvette 1; the cuvette ring 2 has a toothed portion and a connecting portion, the connecting portion being connected to the cuvette 1, and the toothed portion being configured with a photoelectric detection plate to determine the rotational position of the cuvette 1; A cup washing module is used to clean the reaction cups. The cup washing module includes a suction needle, a vacuum pump connected to the suction needle, and a vacuum tank connected to the vacuum pump. The vacuum tank sucks up the waste liquid in the reaction cups through the suction needle, and the vacuum pump removes the air from the vacuum tank. The condensate removal assembly includes an air blowing device 8, which is mounted on the incubation support 3. One end of the air blowing device 8 is connected to the vacuum pump, and the other end faces the toothed portion of the cuvette ring 2. When the vacuum pump exhausts gas, it blows the exhaust gas toward the toothed portion.

[0037] like Figure 4 As shown, the colorimetric cup 1 is placed above the incubation tank 16, the incubation tank 16 is placed on the incubation support 3, the colorimetric cup ring 2 is disposed between the colorimetric cup 1 and the incubation support 3, the photoelectric detection plate 7 is disposed below the colorimetric cup ring 2, and the toothed portion 4 of the colorimetric cup ring 2 is placed on the photoelectric detection plate 7 for rotation.

[0038] By using the air blowing device 8, when the ring rotates, the blown air removes the condensed water droplets on the ring's code teeth 4, thus achieving immediate stripping of the condensed water droplets during the ring's rotation and preventing water droplets from falling onto the photoelectric detection plate 7, ensuring stable optical detection.

[0039] As a preferred embodiment, such as Figure 1 and Figure 2 As shown, the bottom surface of the colorimetric cup ring 2 is provided with a first absorbent cotton layer 5; The inner inclined surface of the colorimetric cup ring 2 is provided with a second absorbent cotton layer 6.

[0040] The first absorbent cotton layer 5 and the second absorbent cotton layer 6 respectively include an absorbent layer and an adhesive layer made of absorbent material. The adhesive layer is adhered to one side of the absorbent layer, and the absorbent layer is adhered to the cuvette ring 2 through the adhesive layer.

[0041] The first absorbent cotton layer 5 and the second absorbent cotton layer 6 are circular structures adapted to the shape and size of the cuvette ring 2. They adhere to the surface of the ring and absorb water vapor and condensation droplets from the surface of the ring through a ring of absorbent cotton, preventing condensation droplets from forming on the ring teeth 4. The inclined structure guides away the condensation, preventing condensation droplets from falling onto the photoelectric detection board 7 and preventing damage to the photoelectric detection board 7 due to short circuits and corrosion. This ensures that the photoelectric triggering time interval is normal, thereby enabling the optical module to perform detection normally.

[0042] like Figure 5 As shown, the air blowing device 8 includes a steel pipe fixing block 10, an air blowing steel pipe 9, and an air pipe 11; The air blowing steel pipe 9 is fixedly installed in the first through hole 14 of the steel pipe fixing block 10, and one end of the air blowing steel pipe 9 is connected to the air pipe 11.

[0043] Specifically, the air tube 11 is connected to the instrument's vacuum pump, and the gas discharged from the air by the vacuum pump is used to blow away the condensate. The air blowing steel pipe 9 can be an L-shaped stainless steel pipe with a central hole; The air pipe 11 can be made of PVC pipe.

[0044] In a preferred embodiment, one end of the air pipe 11 is press-fitted to one end of the air blowing steel pipe 9 to ensure the stability of the connection.

[0045] Combination Figure 7 The gas outlet of the blowing steel pipe 9 is provided with a gap between it and the code tooth part 4, and the blowing direction of the blowing steel pipe 9 is inclined relative to the surface of the code tooth part 4.

[0046] In a preferred embodiment, the steel pipe fixing block 10 has a convex structure, and the first through hole 14 is provided on the convex portion along the direction of the main body portion. The protruding portion is also provided with a set screw 12, which fixes the air-blowing steel pipe 9 through a screw hole 13, the screw hole 13 being perpendicular to the axial direction of the first through hole 14.

[0047] The main body is provided with at least one second through hole 15, and the steel pipe fixing block 10 is fixed to the incubation support 3 by screws 13 that pass through the second through hole 15.

[0048] As a preferred embodiment, such as Figure 3 As shown, the outer surface of the cuvette ring 2 is a sloping structure, which expands the outer diameter of the cuvette ring 2 and does not interfere with the cuvette 1 above it. The sloping structure forms a guide surface that is higher on the outside and lower on the inside, which guides the condensed water back to the incubation tank 16 and prevents the condensed water on the upper surface from dripping onto the photoelectric detection plate 7, thereby ensuring that the optical detection can be carried out normally.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sample analyzer, characterized in that, include The sample module is used to hold the sample; The sample dispensing module is used to draw in and dispense the sample; The reagent module is used to hold the reagents; A reagent dispensing module is used to draw and dispense the reagents; The reaction assembly includes a cuvette for biochemical detection and a cuvette ring that rotates the cuvette; the sample dispensing module dispenses the aspirated sample into the cuvette; the reagent dispensing module dispenses the aspirated reagent into the cuvette; the cuvette ring has a toothed portion and a connecting portion, the connecting portion being connected to the cuvette, and the toothed portion being configured with a photoelectric detection plate to determine the rotational position of the cuvette; A cup washing module is used to clean the reaction cups. The cup washing module includes a suction needle, a vacuum pump connected to the suction needle, and a vacuum tank connected to the vacuum pump. The vacuum tank sucks up the waste liquid in the reaction cups through the suction needle, and the vacuum pump removes the air from the vacuum tank. The condensate removal assembly includes an air blowing device, one end of which is connected to the vacuum pump and the other end is directed toward the toothed portion of the cuvette ring. When the vacuum pump exhausts gas, it blows the exhaust gas toward the toothed portion.

2. The sample analyzer according to claim 1, characterized in that, The outer surface of the cuvette ring is a beveled structure.

3. The sample analyzer according to claim 1, characterized in that, The bottom surface of the colorimetric cup ring is provided with a first absorbent cotton layer.

4. The sample analyzer according to claim 3, characterized in that, The inner inclined surface of the colorimetric cup ring is provided with a second absorbent cotton layer.

5. The sample analyzer according to claim 4, characterized in that, The first absorbent cotton layer and the second absorbent cotton layer each include an absorbent layer and an adhesive layer made of absorbent material. The adhesive layer is adhered to one side of the absorbent layer, and the absorbent layer is adhered to the cuvette ring through the adhesive layer.

6. The sample analyzer according to any one of claims 1-5, characterized in that, The air blowing device includes a steel pipe fixing block, an air blowing steel pipe, and an air pipe; The air-blowing steel pipe is fixedly installed in the first through hole of the steel pipe fixing block, and one end of the air-blowing steel pipe is connected to the air pipe.

7. The sample analyzer according to claim 6, characterized in that, The steel pipe fixing block has a convex structure, and the first through hole is located on the convex part along the direction of the main body. The protruding portion is also provided with a set screw, which fixes the air-blowing steel pipe through a screw hole, the screw hole being perpendicular to the axial direction of the first through hole.

8. The sample analyzer according to claim 7, characterized in that, The main body is provided with at least one second through hole, and the steel pipe fixing block is fixed to the incubation support by screws inserted into the second through hole.

9. The sample analyzer according to claim 6, characterized in that, One end of the air tube is interference-fitted with one end of the air blowing steel tube.

10. The sample analyzer according to claim 6, characterized in that, A gap is provided between the gas outlet of the air blowing steel pipe and the code tooth part, and the air blowing direction of the air blowing steel pipe is inclined relative to the surface of the code tooth part.

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