A dyeing rack liquid accumulation preventing device
By designing an anti-liquid accumulation device on the staining rack of the fully automated immunohistochemistry instrument, and utilizing a heating block, liquid receiving plate, and sealing structure, the problem of liquid accumulation on the staining rack is solved, ensuring stable operation of the equipment and preventing liquid from overflowing onto the circuit board.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAQIU (JIANGSU) BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-14
Smart Images

Figure CN224500129U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fully automated immunization technology, specifically a staining rack anti-liquid accumulation device. Background Technology
[0002] The fully automated immunohistochemistry analyzer is a core piece of equipment in the field of pathological diagnosis. Based on the principle of antigen-antibody specific binding, it achieves the localization, qualitative and quantitative detection of antigens within tissue cells through an automated process. Its technological innovation and clinical application value are significant, making it a key tool for tumor research, precision medicine, and scientific research and teaching.
[0003] However, the staining racks of commercially available fully automated immunohistochemistry instruments often suffer from fluid accumulation problems, which frequently prevents the racks from operating and leads to experimental failure. Even worse, the liquid overflows from the racks, flowing onto the circuit boards and causing short circuits. Therefore, a device to prevent fluid accumulation on the staining racks is proposed. Utility Model Content
[0004] Given the following technical problems in existing technologies: Staining racks in commercially available fully automated immunohistochemistry instruments frequently experience fluid accumulation, which often prevents the rack from functioning and leads to experimental failure. Even worse, fluid may overflow from the rack, flowing onto the circuit board and causing short circuits.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dyeing rack anti-liquid accumulation device, including a heating block, screws fixing a heating circuit board to the heating block, a sealing ring placed in the groove of the heating block, liquid flowing in through the groove of the heating block for liquid heating, a liquid receiving plate, screws using a pull plate fixing a liquid storage tank to the liquid receiving plate, the liquid receiving plate being used to receive liquid flowing in from the groove of the heating block and guide it into the liquid storage tank, a combined sealing gasket, the combined sealing gasket being fitted onto an external threaded straight connector, the external threaded straight connector being screwed into the liquid storage tank, a first O-ring being fitted onto the liquid storage tank, the combined sealing gasket being used to protect the heating circuit board of the heating block and prevent liquid from entering.
[0006] As a preferred technical solution for a dyeing rack anti-liquidation device, the assembled heating block is placed into the slot of the heating block fixing frame.
[0007] As a preferred technical solution for a dyeing rack anti-liquidation device, the heating block is fixed to the heating block fixing plate by screws and a heating block tensioning plate.
[0008] As a preferred technical solution for a dyeing rack anti-liquidation device, the heating block tensioning plate is placed above the liquid receiving plate.
[0009] As a preferred technical solution for a dyeing rack anti-liquidation device, the heating block fixing frame is placed above the liquid receiving plate and then tightened with screws. An outer ring sealant and an inner ring sealant are respectively provided at the connection between the heating block fixing frame and the liquid receiving plate.
[0010] As a preferred technical solution for a dyeing rack anti-liquidation device, a second O-ring is placed into the groove of the liquid receiving plate.
[0011] As a preferred technical solution for a dyeing rack anti-liquidation device, the liquid receiving plate is fixed to the dyeing rack frame with screws.
[0012] The beneficial effects of the anti-liquidation device for the dyeing rack of this utility model are: the device avoids the occurrence of liquid accumulation and can prevent heated liquid from overflowing from the dyeing rack, flowing onto the circuit board, and causing short circuits. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of a dyeing rack anti-liquid accumulation device.
[0014] Figure 2 This is a left sectional view of a staining rack anti-liquidation device.
[0015] Figure 3 This is a schematic diagram of another main structure of a dyeing rack anti-liquid accumulation device.
[0016] Figure 4 This is a schematic diagram of the heating block and heating circuit board structure of a dyeing rack anti-liquid accumulation device.
[0017] Figure 5 This is a left sectional view of another staining rack anti-liquidation device.
[0018] Reference numerals in the attached drawings: 1. Heating block; 2. Heating block fixing bracket; 3. Liquid receiving plate; 4. External thread straight connector; 5. Liquid storage tank; 6. Combined sealing gasket; 7. First O-ring; 8. Second O-ring; 9. Heating block tensioning plate; 10. Pull plate; 11. Heating circuit board; 12. Sealing ring. Detailed Implementation
[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example
[0020] Reference Figures 1 to 5This is the first embodiment of the present invention, which provides a dyeing rack anti-liquid accumulation device. Specifically, it includes a heating block 1, a heating circuit board 11 fixed to the heating block 1 by screws, a sealing ring 12 placed in the groove of the heating block 1, liquid flowing in through the groove of the heating block 1 for liquid heating, a liquid receiving plate 3, a liquid storage tank 5 fixed to the liquid receiving plate 3 by screws and a pull plate 10, the liquid receiving plate 3 being used to receive the liquid flowing in from the groove of the heating block 1 and guide it into the liquid storage tank, a combined sealing gasket 6, the combined sealing gasket 6 being sleeved on the external thread 4 straight connector, the external thread 4 straight connector being screwed into the liquid storage tank 5, a first O-ring 7 being sleeved on the liquid storage tank 5, and the combined sealing gasket 6 being used to protect the heating circuit board of the heating block 1 and prevent liquid from entering.
[0021] Liquid flows in through the slot of heating block 1, passes through the slot of heating block fixing bracket 2, and then flows through liquid receiving plate 3 into liquid storage tank 5, and then into external thread straight connector 4. Liquid is discharged through external thread straight connector 4. Combined sealing gasket 6 is used to prevent liquid from flowing into heating circuit board during liquid flow. A first O-ring 7 is added at the joint between liquid storage tank 5 and liquid receiving plate 3 to ensure that liquid is only stored in liquid storage tank and will not overflow.
[0022] Furthermore, the assembled heating block 1 is placed into the slot of the heating block holder 2. The heating block 1 is fixed to the heating block holder 2 with screws using the heating block tensioning plate 9. The heating block tensioning plate 9 is placed above the liquid receiving plate 3, and the heating block holder 2 is placed above the liquid receiving plate 3. Then, the screws are tightened. Outer and inner ring sealant are respectively applied at the connection between the heating block holder 2 and the liquid receiving plate 3. The liquid storage tank 5 is fixed to the liquid receiving plate 3 with screws using the pull plate 10. A sealing ring 12 is installed on the heating block 1. Liquid is less likely to enter the underside of the heating block from around its perimeter, thus protecting the heating circuit board beneath the heating block. The mounting surface of the heating block holder 2, which cooperates with the heating block 1, is raised to a suitable height. Even if liquid flows down the edge of the heating block, it is blocked on the outside because the mounting surface of the heating block holder 2 is raised. During immunohistochemistry experiments, some steps involve large volumes of liquid, which may flow out from the left or right side of the heating block 1 and onto the heating block holder 2. A slot is cut into the heating block holder 2. When liquid flows onto the heating block holder 2, it will flow into the slot due to gravity. Then, the liquid is collected in the storage tank through the receiving plate 3 and discharged through the external threaded straight connector. The connection between the heating block holder 2 and the receiving plate 3 is sealed with an outer ring of sealant. If liquid flows from the heating block holder 2 onto the receiving plate 3, the liquid will be blocked on the receiving plate 3 by the sealant. Example
[0023] Reference Figures 1-5As shown, this is the second embodiment of the present invention. The difference between this embodiment and the previous embodiment is that the second O-ring 8 is placed in the groove of the liquid receiving plate 3. The device also adds a second O-ring 8 to the liquid receiving plate 3. If the liquid breaks through the outer ring sealant and seeps in, the second O-ring 8 on the liquid receiving plate 3 will block the liquid on the outside again, so that it will not enter the machine and damage the electronic components.
[0024] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A device for preventing liquid accumulation on a dyeing rack, characterized in that: include Heating block (1), screws fix heating circuit board (11) on heating block (1), sealing ring (12) is placed in the groove of heating block (1), liquid flows in through the groove of heating block (1) to heat the liquid; The liquid receiving plate (3) is fixed to the liquid storage tank (5) by screws and pull plate (10). The liquid receiving plate (3) is used to receive the liquid flowing in from the groove of the heating block (1) and guide it into the liquid storage tank. The combined sealing gasket (6) is fitted onto the external thread (4) straight connector. The external thread (4) straight connector is screwed into the liquid storage tank (5). The first O-ring (7) is fitted onto the liquid storage tank (5). The combined sealing gasket (6) is used to protect the heating circuit board of the heating block (1) and prevent liquid from entering.
2. The anti-liquidation device for the dyeing rack according to claim 1, characterized in that: The assembled heating block (1) is placed into the slot of the heating block holder (2).
3. The anti-liquidation device for the dyeing rack according to claim 2, characterized in that: The heating block (1) is fixed to the heating block holder (2) by the screw and the heating block tensioning plate (9).
4. The anti-liquid accumulation device for the dyeing rack according to claim 3, characterized in that: The heating block tensioning plate (9) is placed above the liquid receiving plate (3).
5. The anti-liquidation device for the dyeing rack according to claim 4, characterized in that: The heating block fixing bracket (2) is placed above the liquid receiving plate (3), and then the screws are tightened. The outer ring sealant and the inner ring sealant are respectively provided at the connection between the heating block fixing bracket (2) and the liquid receiving plate (3).
6. The anti-liquidation device for the dyeing rack according to claim 5, characterized in that: The second O-ring (8) is placed into the groove of the liquid receiving plate (3).
7. The anti-liquidation device for the dyeing rack according to claim 6, characterized in that: The liquid receiving plate (3) is fixed to the dyeing rack frame by screws.