Waste liquid tank

By designing a waste liquid tank with a conical hopper and lid structure, the problem of container contamination caused by waste liquid splashing was solved, achieving sterile waste liquid dumping and ensuring a sterile environment for stem cell preparation.

CN224118042UActive Publication Date: 2026-04-14CELTHOMAS BIOTECHNOLOGY (CHENGDU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CELTHOMAS BIOTECHNOLOGY (CHENGDU) CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

During the pouring process of stem cell preparation, waste liquid is prone to splashing and adhering to the container, causing contamination and affecting the preparation effect.

Method used

A waste liquid tank consisting of a conical hopper and a lid was designed. The conical hopper diverts the waste liquid, and the liquid inlet and guide rail structure of the lid prevent splashing. A sterile paper bag is used to enhance friction and prevent contamination.

Benefits of technology

This effectively avoids contamination of the container during the waste liquid dumping process, ensuring a sterile environment for stem cell preparation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224118042U_ABST
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Abstract

The waste liquid tank comprises a tank body, an opening is formed in the upper end of the tank body, an external member is arranged at the upper end of the tank body, a conical hopper is arranged in the external member, the lower end of the conical hopper is a small end, the lower end of the conical hopper is communicated with a liquid discharge pipe, a tank cover is arranged at the upper end of the conical hopper, and a liquid inlet hole is formed in the tank cover. Wherein the tank body is used for storing waste liquid, the waste liquid collected by pouring is separated through the conical hopper, so that the waste liquid in the tank is prevented from splashing when the waste liquid is poured, a container and the like are prevented from being polluted, in addition, in the pouring process, the waste liquid can be poured through the liquid inlet hole, and in this way, the waste liquid can be prevented from splashing outwards; therefore, the poured waste liquid is prevented from splashing to pollute the container, and the conical hopper is beneficial for the waste liquid to flow into the tank body.
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Description

Technical Field

[0001] This utility model relates to the field of stem cell culture equipment technology, and in particular to a waste liquid tank. Background Technology

[0002] During stem cell preparation, some waste liquid needs to be poured into a waste liquid tank as needed. However, during the pouring process, the waste liquid and tissue blocks in the waste liquid can easily cause ripples when they drip or fall onto the surface of the waste liquid tank, causing the waste liquid to splash outwards. The splashed waste liquid can easily adhere to the container or even enter the container, thus contaminating the waste liquid inside the container and affecting the preparation of stem cells. Utility Model Content

[0003] This utility model provides a waste liquid tank to overcome the shortcomings of the prior art. It can avoid contamination of the container when dumping waste liquid and has strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A waste liquid tank includes a tank body with an opening at the top. A fitting is provided at the top of the tank body, and a conical hopper is located within the fitting. The lower end of the conical hopper is narrow and connected to a drain pipe. A tank cover is provided at the top of the conical hopper, and an inlet hole is provided on the cover. The tank body is used to store waste liquid, and the collected waste liquid is separated by the conical hopper to prevent splashing during pouring, thus avoiding contamination of containers. Furthermore, during pouring, the waste liquid can be poured through the inlet hole, preventing splashing and contamination of containers. The conical hopper also facilitates a slow flow of waste liquid into the tank, preventing excessively fast flow that could cause splashing.

[0006] Furthermore, the lower end of the tank is provided with a base support, the longitudinal section of which is concave, and the base support facilitates the pouring and discharge of waste liquid from the tank.

[0007] Furthermore, an outer ring is formed on the upper outer periphery of the tank body. The upper outer wall of the outer ring has a conical structure, and the upper end of the outer wall of the outer ring is the smaller end. A conical ring is formed on the lower end of the kit, and the upper end of the conical ring is the smaller end. The inner circumference of the conical ring is tightly attached to the upper end of the outer ring. A lower ring is provided at the lower end of the conical ring, and the lower ring is fitted on the outside of the outer ring. The kit is placed on the tank body in this way. When there is a lot of waste liquid or when the liquid level of the waste liquid exceeds the lower end face of the drain pipe, the kit is removed and the waste liquid is poured out.

[0008] Furthermore, to ensure the stability of the kit after placement, an inner support ring is provided on the inner circumference of the kit, and the inner support ring is placed on the upper end of the tank.

[0009] Furthermore, in order to facilitate the retention of waste liquid on the upper end surface of the inner support ring, the upper end of the inner support ring has a conical structure.

[0010] Furthermore, in order to facilitate the fixed connection of the can lid to the upper end of the kit, an external threaded ring is provided on the outer periphery of the upper end of the kit, and the can lid is threadedly connected to the external threaded ring.

[0011] Furthermore, in order to fix the conical hopper by means of the can lid, an upper convex edge is provided at the upper end of the conical hopper. The upper convex edge is placed on the external threaded ring, and the lower wall of the can lid is in close contact with the upper wall of the upper convex edge.

[0012] Furthermore, to avoid contaminating the container during pouring and to facilitate the pouring of waste liquid, a guide rail is fixed to the lid, a sliding sleeve is slidably mounted on the guide rail, and protruding plates are fixed on both sides of the sliding sleeve. A rotating shaft is rotatably mounted on the upper end of the protruding plate, and a concave support is mounted on the inner end of the rotating shaft. An outwardly extending guide rod is fixed to the vertical section of the concave support, and an L-shaped plate is fitted on the outwardly extending guide rod on the same side. A clamp is formed on the inner end of the L-shaped plate, and a sterile paper is provided on the inner wall of the clamp and the upper wall of the horizontal section of the concave support to prevent contamination of the parts of the clamp and concave support that come into contact with the container.

[0013] Furthermore, an external protrusion is welded to the vertical section of the L-shaped plate, which facilitates the operator to clamp the container with their fingers.

[0014] The advantages of the above technical solution are:

[0015] This invention minimizes contamination of the container and its contents when dumping waste liquid, and facilitates the waste liquid dumping operation. Attached Figure Description

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in further detail below with reference to the accompanying drawings.

[0017] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0018] Figure 2 A magnified view of point A is shown.

[0019] Figure 3 A cross-sectional structural diagram of one embodiment is shown.

[0020] Figure 4 A magnified view of point B is shown. Detailed Implementation

[0021] like Figures 1-4As shown, a waste liquid tank includes a tank body 1, a base support 10 at the lower end of the tank body 1, the longitudinal section of the base support 10 is concave, the upper end of the tank body 1 is open, a kit 2 is provided at the upper end of the tank body 1, a conical hopper 40 is provided inside the kit 2, the lower end of the conical hopper 40 is a small end, the lower end of the conical hopper 40 is connected to a drain pipe 41, and a tank cover 3 is provided at the upper end of the conical hopper 40, with a liquid inlet hole 30 opened on the tank cover 3.

[0022] The upper outer periphery of the tank body 1 is formed with an outer ring 11, the upper outer wall of which has a conical structure and the upper end of the outer wall of the outer ring 11 is the smaller end. The lower end of the kit 2 is formed with a conical ring 21, the upper end of which is the smaller end, and the inner periphery of the conical ring 21 is tightly attached to the upper end of the outer ring 11. The lower end of the conical ring 21 is provided with a lower ring 20, which is sleeved on the outside of the outer ring 11. The inner periphery of the kit 2 is provided with an inner support ring 22, which is placed on the upper end of the tank body 1, and the upper end of the inner support ring 22 has a conical structure. The upper outer periphery of the kit 2 is provided with an external threaded ring 23, and the tank cover 3 is threadedly connected to the external threaded ring 23. The upper end of the conical bucket 40 is provided with an upper protruding edge 4, which is placed on the external threaded ring 23, and the lower wall of the tank cover 3 is tightly attached to the upper wall of the upper protruding edge 4.

[0023] A guide rail 5 is fixed on the can lid 3. A sliding sleeve 50 is slidably provided on the guide rail 5. A protruding plate 51 is fixed on both sides of the sliding sleeve 50. A rotating shaft 52 is rotatably provided on the upper end of the protruding plate 51. A concave support 53 is provided on the inner end of the rotating shaft 52. An outwardly extending guide rod 54 is fixed on the vertical section of the concave support 53. An L-shaped plate 55 is sleeved on the outwardly extending guide rod 54 located on the same side. A clamp is formed on the inner end of the L-shaped plate 55. An outwardly protruding sleeve 56 is welded on the vertical section of the L-shaped plate 55. An oblong hole is opened on the outwardly protruding sleeve 56.

[0024] In this embodiment, the waste liquid tank is detachably connected. This connection method facilitates the pouring out of the collected waste liquid. Furthermore, by cleaning and sterilizing each component, a sterile environment is provided for the preparation of stem cells.

[0025] In this embodiment, when pouring out the waste liquid, the operator places a sterile paper bag over the bottom of the container. The outer layer of the paper bag is plastic, and the inner layer is sterile paper. This method is mainly used to increase the friction between the sterile paper bag and the container during pouring. During pouring, the operator places the container with the sterile paper bag on the concave support 53, and then uses the outer convex sleeve 56 to make the clamp act on the outer wall of the container. Then, the container is tilted to a certain angle, and the waste liquid is poured into the inlet hole 30. During the pouring process, the waste liquid will come into contact with the inner wall of the conical hopper 40, causing the waste liquid to splash outwards. During the splashing, the can lid 3 can prevent the waste liquid from splashing onto the container. Even if some splashes onto the container, the presence of the sterile paper bag can prevent contamination of the container. Furthermore, during the pouring process, there will be no problem of waste liquid splashing outwards from the can 1, thus avoiding contamination of the container. After pouring, the operator removes the sterile paper bag from the container and discards it. When there is a lot of waste liquid in tank 1, remove the kit 2 and other components from tank 1, and then pour out the waste liquid.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A waste liquid tank, characterized in that, Includes a tank body (1), with an opening at the top of the tank body (1), a kit (2) at the top of the tank body (1), a conical hopper (40) inside the kit (2), the lower end of the conical hopper (40) being the small end, the lower end of the conical hopper (40) being connected to a drain pipe (41), and a tank cover (3) at the top of the conical hopper (40), with an inlet hole (30) on the tank cover (3).

2. The waste liquid tank according to claim 1, characterized in that, The lower end of the tank (1) is provided with a base support (10), and the longitudinal section of the base support (10) is concave.

3. The waste liquid tank according to claim 1, characterized in that, The upper outer periphery of the tank (1) is formed with an outer ring (11), the upper outer wall of the outer ring (11) is conical, and the upper end of the outer wall of the outer ring (11) is the small end. The lower end of the kit (2) is formed with a conical ring (21), the upper end of the conical ring (21) is the small end, and the inner periphery of the conical ring (21) is tightly attached to the upper end of the outer ring (11). The lower end of the conical ring (21) is provided with a lower ring (20), which is sleeved on the outside of the outer ring (11).

4. The waste liquid tank according to claim 3, characterized in that, The inner circumference of the kit (2) is provided with an inner support ring (22), which is placed on the upper end of the tank (1).

5. The waste liquid tank according to claim 4, characterized in that, The upper end of the inner support ring (22) has a conical structure.

6. The waste liquid tank according to claim 1, characterized in that, The upper outer periphery of the kit (2) is provided with an external threaded ring (23), and the can lid (3) is connected to the external threaded ring (23) by thread.

7. The waste liquid tank according to claim 6, characterized in that, The upper end of the conical hopper (40) is provided with an upper convex edge (4), which is placed on the external threaded ring (23), and the lower wall of the can lid (3) is in close contact with the upper wall of the upper convex edge (4).

8. The waste liquid tank according to claim 1, characterized in that, A guide rail (5) is fixed on the can lid (3). A sliding sleeve (50) is slidably provided on the guide rail (5). A convex plate (51) is fixed on both sides of the sliding sleeve (50). A rotating shaft (52) is rotatably provided on the upper end of the convex plate (51). A concave support (53) is provided on the inner end of the rotating shaft (52). An outwardly extending guide rod (54) is fixed on the vertical section of the concave support (53). An L-shaped plate (55) is sleeved on the outwardly extending guide rod (54) located on the same side. A clamp is formed on the inner end of the L-shaped plate (55).

9. The waste liquid tank according to claim 8, characterized in that, An external protrusion sleeve (56) is welded to the vertical section of the L-shaped plate (55).