Serum sample refrigeration storage device
By designing a refrigerated storage device for serum samples with a pusher unit and a screw structure, the problem of frequent opening and closing affecting the refrigeration effect was solved, achieving safe storage and efficient loading and unloading of serum samples, and ensuring storage quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN SELFAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, the frequent opening and closing of serum sample storage devices affects the refrigeration effect, making it impossible to separate the dispensing and retrieving of serum samples, resulting in poor storage quality.
A serum sample cold storage device was designed, which adopts a pusher unit and a screw structure. By opening the sealing cover and moving the storage rack, the serum sample can be fed in and out through two paths, avoiding the need to frequently open the cold storage device.
This method enables the safe storage of serum samples, reduces energy loss, prevents interference between samples, and ensures storage quality and safety.
Smart Images

Figure CN224188859U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sample storage technology, and in particular to a serum sample cold storage device. Background Technology
[0002] Blood samples are one of the most common sample types. Blood has extensive mobility and plays a vital role in the transport of substances within living organisms. Medical staff collect fresh blood and add it to a tube containing anticoagulant, gently inverting and mixing to ensure thorough anticoagulation, thus obtaining a serum sample. Once collected, serum samples can be stored at 4°C for 1-2 days if they cannot be tested on the same day. If testing is not required immediately, serum samples can be aliquoted and frozen for later use. To avoid repeated freeze-thaw cycles, serum samples can generally be stored at 4°C for one week, at -20°C for half a month, and at -80°C for one month. Therefore, serum sample refrigeration storage devices are required for storing serum samples.
[0003] Currently, serum samples are stored by attaching labels directly to the sample tubes, placing the tubes on a test tube rack or in a plastic bag, and then storing them in a refrigerator. However, this method usually requires taking the entire sample out when retrieving it. Frequent opening and closing of the refrigeration unit can affect the refrigeration effect of the unit, causing significant interference to the overall serum sample. It also fails to separate the process of retrieving and discharging serum samples, resulting in poor storage quality. Utility Model Content
[0004] This invention provides a serum sample cold storage device, which solves the problems in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A serum sample cold storage device includes a refrigeration body, a fixed box fixed inside the refrigeration body, and a sealing cover connected to the top of the refrigeration body by a hinge. Multiple storage racks are placed equidistantly inside the fixed box, and through holes are equidistantly opened at the front end of the fixed box with respect to the multiple storage racks. A baffle is provided on the surface of the through holes, and the baffle is rotatably connected to the surface of the fixed box by a hinge.
[0007] Two connecting plates are fixedly connected to the bottom of the storage rack. The two connecting plates are arranged in parallel, and a pusher unit is movably inserted between the two connecting plates.
[0008] The pushing unit includes an adjusting block, which is slidably connected inside the fixed box. A lead screw is rotatably connected inside the adjusting block. An insert plate is connected to the outer wall of the lead screw through a ball nut. The insert plate is slidably connected to the upper inner part of the fixed box, and the top of the insert plate is movably inserted between two connecting plates.
[0009] The sliding direction of the insert plate inside the fixed box is perpendicular to the sliding direction of the adjusting block inside the fixed box.
[0010] Using the above structure, the surface of the fixed box is opened through the sealing cover. Multiple storage racks are placed inside the fixed box on the side of the through hole, and the fixed box is sealed with the sealing cover for refrigeration. When retrieving serum samples, the adjusting block is moved laterally by the screw at the rear of the fixed box. This causes the adjusting block to move inside the fixed box. After the adjusting block is moved under the corresponding storage rack, the insert plate is movably inserted between the two connecting plates through the side groove. At the same time, rotating the screw causes the screw to move the insert plate through the ball nut. This causes the insert plate to move the entire storage rack inside the fixed box through the connecting plate. The user can then open the storage rack through the corresponding baffle to discharge the sample.
[0011] The bottom end of the adjusting block is fixedly connected to a slider, and the bottom end of the slider is slidably connected to a guide rail, which is fixedly connected to the inner bottom wall of the fixed box.
[0012] With the above structure, the slider and guide rail allow the adjusting block to move precisely inside the fixed box. Furthermore, by setting the guide rail and lead screw perpendicularly, the insert plate and adjusting block can move bidirectionally inside the fixed box, facilitating the precise connection of the insert plate to the storage rack via the connecting plate.
[0013] The storage rack has side slots running through both sides, and the side slots are located between two connecting plates.
[0014] By adopting the above structure and setting the side groove, the adjustment block can move the insert plate between two adjacent storage racks through the side groove, which ensures the movement effect of the insert plate between multiple storage racks. Moreover, the structure is simple and ensures the structural stability of the storage rack.
[0015] The surface of the fixed box is provided with slides that can accommodate the movement of the insert plate, and the slides are arranged in multiple consecutive "T" shapes.
[0016] By adopting the above structure and using multiple continuously arranged "T"-shaped slides, the insert plate can move the storage rack under the storage rack at different positions, which facilitates the movement of the insert plate by the lead screw under the fixed box. This achieves the limitation of the insertion plate's movement path by the fixed box, and the structure is simple, ensuring the overall stability of the fixed box.
[0017] The rear end of the fixed box is provided with a through groove that can accommodate the movement of the lead screw.
[0018] With the above structure and the through slot, when the adjusting block moves the lead screw below the fixed box, the lead screw can move synchronously inside the through slot, avoiding interference during the movement of the lead screw, ensuring the movement effect of the adjusting block driving the lead screw, and making it convenient for users to operate the lead screw at the rear end of the fixed box.
[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0020] In this invention, by setting multiple storage racks inside the fixed box and a pushing unit below the fixed box, the user can push the storage racks at different positions using an adjustment block. Furthermore, the screw and insert plate allow the insert plate to move the entire storage rack between two connecting plates, facilitating the discharge of the corresponding storage rack through the through-hole. Opening the corresponding baffle allows for discharge of the storage rack. This design allows the user to open the fixed box extensively through the sealing cover for material release and discharge of the storage racks via the pushing unit. This avoids frequent opening of the device during testing, reducing energy loss. Simultaneously, it achieves a dual-pathway for serum sample release and discharge, preventing interference and impact on other serum samples during discharge and ensuring the safety of serum sample storage. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of a serum sample cold storage device according to the present invention;
[0022] Figure 2 This is a schematic diagram of the structure of the fixing box in this utility model;
[0023] Figure 3 This is a cross-sectional structural diagram of the fixing box in this utility model;
[0024] Figure 4 This is a schematic diagram of the storage rack structure in this utility model;
[0025] Figure 5 This is a top view of the fixed box in this utility model.
[0026] Legend:
[0027] 1. Refrigeration unit body; 2. Fixed box; 3. Sealing cover; 4. Storage rack; 5. Through hole; 6. Baffle; 7. Connecting plate; 8. Insert plate; 9. Lead screw; 10. Adjusting block; 11. Sliding block; 12. Guide rail; 13. Side groove; 14. Slide rail; 15. Through groove. Detailed Implementation
[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0029] Reference Figures 1-5 A serum sample cold storage device includes a refrigeration body 1, a fixed box 2 fixed inside the refrigeration body 1, and a sealing cover 3 connected to the top of the refrigeration body 1 by a hinge. Multiple storage racks 4 are placed equidistantly inside the fixed box 2, and through holes 5 are equidistantly opened at the front end of the fixed box 2 with respect to the multiple storage racks 4. At the same time, a baffle 6 is provided on the surface of the through holes 5. The baffle 6 is rotatably connected to the surface of the fixed box 2 by a hinge. With this arrangement, the top of the fixed box 2 can be fully opened through the sealing cover 3, and the baffle 6 can be partially opened at the front end of the fixed box 2 by the hinge. Moreover, with the corresponding arrangement of the storage racks 4 and the through holes 5, the storage racks 4 can be opened through the corresponding through holes 5 when discharging, avoiding large-area opening of the fixed box 2, reducing energy consumption and water loss, and being highly environmentally friendly. In order to drive the storage racks 4, two connecting plates 7 are fixedly connected to the bottom of the storage racks 4. The two connecting plates 7 are arranged in parallel, and a pushing unit is movably inserted between the two connecting plates 7.
[0030] Furthermore, the feeding unit includes an adjusting block 10, which is slidably connected inside the fixed box 2. Specifically, a slider 11 is fixedly connected to the bottom end of the adjusting block 10, and a guide rail 12 is slidably connected to the bottom end of the slider 11. The guide rail 12 is fixedly connected to the inner bottom wall of the fixed box 2. A lead screw 9 is rotatably connected inside the adjusting block 10. Through the arrangement of the slider 11 and the guide rail 12, the adjusting block 10 can move precisely inside the fixed box 2. Furthermore, by setting the guide rail 12 and the lead screw 9 perpendicularly, the insert plate 8 and the adjusting block 10 can move bidirectionally inside the fixed box 2. The sliding plate 8 is designed to facilitate precise connection between the connecting plate 7 and the storage rack 4. Simultaneously, to facilitate user operation of the lead screw 9, a through slot 15 is provided at the rear end of the fixed box 2 to accommodate the movement of the lead screw 9. The through slot 15 allows the lead screw 9 to move synchronously within the slot when the adjusting block 10 moves it below the fixed box 2, avoiding interference during movement and ensuring the effective movement of the lead screw 9 by the adjusting block 10. This facilitates user operation of the lead screw 9 at the rear end of the fixed box 2. Furthermore, to achieve the transmission of the lead screw 9... The screw 9 is connected to an insert plate 8 via a ball nut on its outer wall. The insert plate 8 is slidably connected to the upper inner part of the fixed box 2, and its top is movably inserted between two connecting plates 7. The sliding direction of the insert plate 8 inside the fixed box 2 is perpendicular to the sliding direction of the adjusting block 10 inside the fixed box 2. The surface of the fixed box 2 is provided with slide rails 14 to accommodate the movement of the insert plate 8. The slide rails 14 are arranged in multiple consecutive "T" shapes. Through the multiple consecutive "T" shaped slide rails 14, the insert plate 8 can drive the storage rack 4 to move under different positions. The screw 9 facilitates the movement of the insert plate 8 below the fixed box 2, thus limiting the movement path of the insert plate 8 by the fixed box 2. The structure is simple and ensures the overall stability of the fixed box 2. Side grooves 13 are provided through both sides of the storage rack 4, and the side grooves 13 are located between the two connecting plates 7. The side grooves 13 allow the insert plate 8 to move between two adjacent storage racks 4 when the adjusting block 10 moves it, ensuring the movement of the insert plate 8 between multiple storage racks 4. The structure is simple and ensures the structural stability of the storage rack 4.
[0031] Working principle: During operation, the surface of the fixed box 2 is opened through the sealing cover 3. Multiple storage racks 4 are placed inside the fixed box 2 on one side of the through hole 5, and the fixed box 2 is sealed with the sealing cover 3 for cold storage. When retrieving serum samples, the adjusting block 10 is moved laterally by the screw 9 at the rear end of the fixed box 2. This causes the adjusting block 10 to move inside the fixed box 2. After the adjusting block 10 is moved under the corresponding storage rack 4, the insert plate 8 is movably inserted between the two connecting plates 7 through the side groove 13. At the same time, the screw 9 is rotated, causing the screw 9 to drive the insert plate 8 to move through the ball nut. This causes the insert plate 8 to drive the storage rack 4 to move as a whole inside the fixed box 2 through the connecting plate 7. The user can then open the storage rack 4 through the corresponding baffle 6 to discharge the sample. This achieves dual-path feeding and discharging of the cold storage device, avoiding contamination of other serum samples during discharging and ensuring the storage quality of the serum samples. This completes the working principle of the serum sample cold storage device.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A serum sample cold storage device, comprising a refrigeration unit (1), a fixed box (2) fixed inside the refrigeration unit (1), and a sealing cover (3) connected to the top of the refrigeration unit (1) by a hinge, characterized in that: The fixed box (2) has multiple storage racks (4) placed at equal intervals inside, and the front end of the fixed box (2) has through holes (5) at equal intervals with respect to the multiple storage racks (4). A baffle (6) is provided on the surface of the through hole (5), and the baffle (6) is rotatably connected to the surface of the fixed box (2) by a hinge. Two connecting plates (7) are fixedly connected to the bottom of the storage rack (4). The two connecting plates (7) are arranged in parallel, and a pusher unit is movably inserted between the two connecting plates (7). The pushing unit includes an adjusting block (10), which is slidably connected inside the fixed box (2). The adjusting block (10) is rotatably connected to a lead screw (9), and the outer wall of the lead screw (9) is connected to an insert plate (8) through a ball nut. The insert plate (8) is slidably connected to the upper inner part of the fixed box (2), and the top of the insert plate (8) is movably inserted between two connecting plates (7). The sliding direction of the insert plate (8) inside the fixed box (2) is perpendicular to the sliding direction of the adjusting block (10) inside the fixed box (2).
2. The serum sample cold storage device according to claim 1, characterized in that: The bottom end of the adjusting block (10) is fixedly connected to a slider (11), and the bottom end of the slider (11) is slidably connected to a guide rail (12), which is fixedly connected to the inner bottom wall of the fixed box (2).
3. The serum sample cold storage device according to claim 1, characterized in that: The storage rack (4) has side slots (13) extending through both sides, and the side slots (13) are located between two connecting plates (7).
4. A serum sample cold storage device according to claim 1, characterized in that: The surface of the fixed box (2) is provided with a slide (14) that can accommodate the movement of the insert plate (8), and the slide (14) is in the form of multiple consecutive "T" shaped structures.
5. A serum sample cold storage device according to claim 4, characterized in that: The rear end of the fixed box (2) is provided with a through groove (15) that can accommodate the movement of the lead screw (9).