A vacuum drying apparatus for SPR detection kits

Abstract

The utility model relates to biological reagent preparation equipment technical field discloses a vacuum drying equipment for SPR detection kit, including cabinet, cavity, placing plate and vacuum pump, still including the conversion subassembly of connecting between cavity and vacuum pump and the dismounting subassembly for fixed placing plate. The conversion subassembly is equipped with the cylinder type cold trap in, the dismounting subassembly makes placing plate to be detachably installed. The utility model passes through the cylinder type cold trap condensation capture from the water vapor of cavity extraction, effectively prevents the water vapor to enter the inside of vacuum pump and causes the damage, remarkably prolongs the service life of equipment and can long -term guarantee the stability of vacuum performance. Meanwhile, the quick release structure design of placing plate greatly facilitates user to clean and replace it, not only simplifies the maintenance process, effectively avoids the cross contamination between different batches of samples, also remarkably improves the cleanliness and overall work efficiency in the production process.

Description

Technical Field

[0001] This utility model relates to the field of biological reagent preparation equipment technology, and in particular to a vacuum drying device for an SPR detection kit. Background Technology

[0002] Surface plasmon resonance (SPR) technology is a highly sensitive, real-time, label-free biomolecular interaction analysis technique. The assay kits used in this technology typically contain bioactive substances that are extremely sensitive to environmental conditions, particularly humidity. To ensure the stability and activity of these kits during storage and transportation, thorough drying is essential. Vacuum drying technology, due to its ability to efficiently remove moisture at lower temperatures, thereby maximizing the preservation of biomolecular activity, has become a key process in the production of such kits.

[0003] Currently, conventional vacuum drying equipment typically uses a vacuum pump to evacuate the sealed drying chamber, creating a low-pressure environment to accelerate the evaporation or sublimation of moisture in the material, followed by appropriate heating to complete the drying process. However, during this process, a large amount of water vapor escaping from the reagent kit is drawn towards the vacuum pump along with the airflow.

[0004] Many existing vacuum drying devices have relatively simple gas path designs and do not effectively pre-treat water vapor before it enters the vacuum pump. This allows humid gas to directly enter the precision internal structure of the vacuum pump. On the one hand, the water vapor emulsifies with the vacuum pump oil, leading to decreased lubrication performance and significantly reducing the pump's ultimate vacuum and pumping efficiency. On the other hand, the water vapor may also corrode the pump's internal metal components, causing performance degradation or even permanent damage over long-term operation, thus increasing equipment maintenance costs and failure rates.

[0005] Furthermore, during the drying process, the SPR test kit needs to be placed on a sample placement plate within the drying chamber. To ensure no cross-contamination between different batches and to maintain a high cleanliness standard in the production environment, this placement plate needs to be thoroughly cleaned or replaced periodically. However, some existing vacuum drying equipment is designed with internal placement plates that are fixedly welded or secured by complex bolt structures, making disassembly cumbersome and requiring specialized tools and considerable time. This inconvenient structural design not only significantly reduces the efficiency of cleaning and maintenance but also makes thorough cleaning difficult to guarantee, posing a potential contamination risk to the production of high-standard biological reagents. Therefore, a vacuum drying device for SPR test kits is proposed to address these issues. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a vacuum drying device for SPR test kits, aiming to improve the problem in the existing vacuum drying devices for SPR test kits where water vapor generated during the drying process is directly introduced into the vacuum pump without effective treatment, which easily leads to damage to the vacuum pump and reduces the service life of the equipment.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a vacuum drying device for SPR test kits, including: a cabinet, a cavity formed inside the cabinet, a door for sealing the cavity, a placement plate disposed inside the cavity, and a vacuum pump; as well as a conversion component and a disassembly component.

[0008] The conversion component is equipped with a cylindrical cold trap for condensing water vapor.

[0009] Furthermore, the conversion assembly is connected between the cavity and the vacuum pump, and the disassembly assembly detachably fixes the placement plate inside the cavity. As a further description of the above technical solution: Preferably, the conversion assembly includes a vacuum pipe, the cylindrical cold trap is connected in series with the vacuum pipe, and the two ends of the vacuum pipe are respectively connected to the cavity and the vacuum pump.

[0010] Preferably, the lower part of the cabinet is provided with a mounting groove, and the vacuum pump is fixed to a support block inside the mounting groove.

[0011] Preferably, the disassembly and assembly assembly includes a limiting strip with an internal groove and a bolt for locking. The placement plate is slidably connected to the limiting strip through the groove and fixed by the bolt.

[0012] Preferably, the outer wall of the cabinet is also equipped with a temperature control instrument, a pressure gauge, a venting valve, and an extraction valve.

[0013] Preferably, the air extraction valve is located on the communication path between the cavity and the conversion component.

[0014] Preferably, one end of the vent valve is connected to the cavity, and the other end is connected to the external atmospheric environment.

[0015] Preferably, one side of the cabinet door is hinged to the cabinet body, and the other side is provided with a handle.

[0016] This utility model has the following beneficial effects: 1. In this utility model, by innovatively setting a conversion component containing a cylindrical cold trap in the inlet air pipeline of the vacuum pump, water vapor extracted from the cavity can be effectively condensed and captured during the vacuum extraction process, preventing it from entering the vacuum pump. This greatly avoids the corrosion and damage caused by water vapor to the vacuum pump, significantly extends the service life of the vacuum pump, and ensures that the equipment maintains a high vacuum level for a long time, thus improving the reliability of the drying operation.

[0017] 2. In this utility model, by setting up a unique disassembly and assembly component, the placement plate carrying the reagent kit can be quickly disassembled and assembled. The operator only needs to tighten the bolts to easily pull out the placement plate along the slide for cleaning or replacement. This design is simple in structure and convenient to operate. It does not require the use of complicated tools, which greatly simplifies the cleaning and maintenance of the equipment, effectively prevents cross-contamination between different batches of samples, and improves the accuracy and efficiency of the experiment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a vacuum drying device for an SPR detection kit proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the placement plate of the vacuum drying equipment for an SPR test kit proposed in this utility model; Figure 3 This is a schematic diagram of the structure of a cylindrical cold trap for a vacuum drying device for an SPR detection kit proposed in this utility model; Figure 4 This is a schematic diagram of the structure of the fixing block of a vacuum drying device for an SPR test kit proposed in this utility model; Figure 5 This is a schematic diagram of the limiting strip of a vacuum drying device for an SPR test kit proposed in this utility model.

[0019] Legend: 1. Cabinet body; 2. Cabinet door; 3. Handle; 4. Temperature control instrument; 5. Pressure gauge; 6. Vent valve; 7. Extraction valve; 8. Assembly / disassembly components; 801. Fixing block; 802. Bolt; 803. Limiting strip; 9. Conversion component; 901. Cylindrical cold trap; 902. Vacuum pipe; 10. Cabinet door; 11. Handle slot; 12. Placement plate; 13. Cavity; 14. Mounting slot; 15. Support block; 16. Vacuum pump; 17. Slide rail. Detailed Implementation

[0020] 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.

[0021] Please refer to the appendix. Figure 1 - Appendix Figure 5 This utility model provides a vacuum drying device for SPR test kits, including a cabinet 1, with a cavity 13 formed inside the cabinet 1. A door 2 is installed on the cabinet 1 to seal the cavity 13. One side of the door 2 is rotatably connected to the cabinet 1, and a handle 3 is fixedly connected to the side of the door 2 away from the rotatable connection. A placement plate 12 is provided inside the cavity 13 to hold the test kits to be dried. The device also includes a vacuum pump 16, which is located at the bottom of the cabinet 1 and is used to evacuate the cavity 13 to create a vacuum environment.

[0022] The device also includes a conversion component 9 and a disassembly / reassembly component 8.

[0023] The conversion component 9 is connected between the cavity 13 and the vacuum pump 16. It integrates a cylindrical cold trap 901. The conversion component 9 also includes a vacuum pipe 902. The cylindrical cold trap 901 is fixed in series on the vacuum pipe 902. One end of the vacuum pipe 902 is fixedly connected to the air extraction port of the cavity 13, and the other end is fixedly connected to the air inlet of the vacuum pump 16. This connection method means that the gas extracted from the cavity 13 must be condensed by the cylindrical cold trap 901.

[0024] The disassembly and assembly assembly 8 detachably fixes the placement plate 12 inside the cavity 13. The disassembly and assembly assembly 8 includes a limiting strip 803, which is fixedly installed on the inner wall of the cavity 13 along the depth direction of the cavity 13. The limiting strip 803 has a sliding groove 17 inside, and the side of the placement plate 12 is slidably connected to the sliding groove 17. The disassembly and assembly assembly 8 also includes a fixing block 801 and a bolt 802. The fixing block 801 is fixedly installed inside the cavity 13, and the bolt 802 passes through the fixing block 801 through a threaded connection. Its end is used to abut against and lock the placement plate 12 in the installation position.

[0025] In a preferred embodiment, in order to facilitate maintenance and operation of the equipment, a cabinet door 10 is provided at the lower part of the cabinet 1 corresponding to the position of the mounting groove 14. The cabinet door 10 is machined with a handle groove 11. The mounting groove 14 is formed inside the cabinet 1 and behind the cabinet door 10. A support block 15 is fixedly connected to the bottom of the mounting groove 14, and the vacuum pump 16 is fixedly installed on the top of the support block 15.

[0026] To achieve precise control and monitoring of the drying process, a temperature controller 4, a pressure gauge 5, a venting valve 6, and a vacuum valve 7 are integrated on the outer wall of the cabinet 1. The temperature controller 4 is electrically connected to the heating and temperature sensing elements inside the cavity 13. The pressure gauge 5 is connected to the inside of the cavity 13 to display the real-time pressure. The vacuum valve 7 is fixedly connected to the connection path between the cavity 13 and the conversion component 9 to control the opening and closing of the vacuum pipeline. One end of the venting valve 6 is connected to the cavity 13, and the other end is connected to the external atmospheric environment to restore the normal pressure state inside the cavity 13 after drying.

[0027] Working principle: During operation, first close the vent valve 6 on the outside of cabinet 1, open the door 2 using handle 3, place the reagent kit on the placement plate 12 inside chamber 13, then close the door 2. Next, open the extraction valve 7 and the lower cabinet door 10, and start the vacuum pump 16 mounted on the support block 15. The vacuum pump 16 extracts gas from chamber 13 through the vacuum pipe 902 inside the conversion assembly 9. As the gas flows through the conversion assembly 9, the internal cylindrical cold trap 901 condenses and collects the water vapor carried in the gas, thus protecting the vacuum pump 16. Use pressure gauge 5 to observe the pressure change inside chamber 13. Once the set vacuum level is reached, first close the evacuation valve 7, then close the vacuum pump 16. Next, use temperature control instrument 4 to heat and maintain the temperature of chamber 13 to complete the drying process. After drying, open the vent valve 6 to balance the pressure inside and outside chamber 13. Finally, open the door 2 through handle 3 to take out the reagent kit. When the placement plate 12 needs to be cleaned or replaced, loosen the bolt 802 on the fixing block 801 outward. After the bolt 802 is no longer in contact with the placement plate 12, the placement plate 12 can be smoothly pulled out along the sliding groove 17 on the limiting strip 803.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum drying apparatus for an SPR detection kit, comprising: Cabinet (1), the interior of which is formed a cavity (13), and the cabinet (1) is provided with a door (2) for sealing the cavity (13); Placement plate (12), disposed within the cavity (13); and Vacuum pump (16); Its features are, It also includes a conversion assembly (9) connected between the cavity (13) and the vacuum pump (16), and a cylindrical cold trap (901) is disposed inside the conversion assembly (9); and It also includes a disassembly assembly (8) that detachably fixes the placement plate (12) inside the cavity (13).

2. The vacuum drying equipment for an SPR detection kit according to claim 1, characterized in that: The conversion component (9) also includes a vacuum pipe (902), the cylindrical cold trap (901) is connected in series with the vacuum pipe (902), one end of the vacuum pipe (902) is connected to the cavity (13), and the other end is connected to the vacuum pump (16).

3. The vacuum drying equipment for an SPR detection kit according to claim 1, characterized in that: The lower part of the cabinet (1) is provided with another cabinet door (10), and the cabinet door (10) is provided with a handle groove (11); the interior of the cabinet (1) and the rear of the cabinet door (10) are provided with an installation groove (14), and a support block (15) is provided in the installation groove (14), and the vacuum pump (16) is fixed to the top of the support block (15).

4. The vacuum drying equipment for an SPR detection kit according to claim 1, characterized in that: The disassembly assembly (8) includes a limiting strip (803), and a sliding groove (17) is provided inside the limiting strip (803). The placement plate (12) is slidably connected to the limiting strip (803) through the sliding groove (17). The disassembly assembly (8) also includes a fixing block (801) and a bolt (802). The bolt (802) passes through the fixing block (801) to lock the placement plate (12).

5. The vacuum drying apparatus for an SPR detection kit according to claim 1, characterized in that: The outer wall of the cabinet (1) is also equipped with a temperature control instrument (4), a pressure gauge (5), a venting valve (6), and an extraction valve (7).

6. The vacuum drying apparatus for an SPR detection kit according to claim 5, characterized in that: The air extraction valve (7) is located on the communication path between the cavity (13) and the conversion component (9).

7. The vacuum drying apparatus for an SPR detection kit according to claim 5, characterized in that: One end of the vent valve (6) is connected to the cavity (13), and the other end is connected to the external atmospheric environment.

8. The vacuum drying apparatus for an SPR detection kit according to claim 1, characterized in that: One side of the cabinet door (2) is hinged to the cabinet body (1), and the other side of the cabinet door (2) is provided with a handle (3).

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