Sealing leakage-proof device for waste liquid collection of environmental protection cabinet

Abstract

The utility model relates to environmental protection equipment technical field discloses the sealed leakage -proof device of environmental protection cabinet waste liquid collection, including waste liquid bucket, the bottom fixed waste liquid bucket is equipped with the drain pipe, the liquid outlet end fixed drain pipe is equipped with the drain valve, the top fixed waste liquid bucket is equipped with the bucket lid, the one side of bucket lid is equipped with the liquid inlet, the top fixed input joint of liquid inlet, the other side of bucket lid is equipped with the air vent, the top fixed waste gas purification subassembly of waste gas filtering of bucket lid, through sealing assembly can simultaneously seal the liquid inlet and the air vent, can prevent waste liquid and evaporate through the liquid inlet and the air vent, waste liquid bucket can prevent waste liquid overflow under the state of handling and pouring, reduced the risk of leakage, safe and reliable to guarantee the health of operator, and can open the liquid inlet and the air vent simultaneously through sealing assembly.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, specifically a sealing and leak-proof device for collecting waste liquid in an environmental protection cabinet. Background Technology

[0002] An environmental protection cabinet is a protective device specifically designed for the safe handling, storage, or discharge of hazardous substances (such as chemical waste liquids, toxic gases, biological pollutants, etc.) generated during experiments. It is mainly used in laboratories, medical institutions, chemical production facilities, and other places with high environmental safety requirements. In the process of treating laboratory waste liquids, chemical production facilities, or medical waste liquids, environmental protection cabinets (such as fume hoods and biosafety cabinets) are usually equipped with waste liquid collection devices for the temporary storage of experimental waste liquids or chemical waste.

[0003] Traditional waste liquid collection containers are mostly simple buckets or bottles with poor sealing. The container lids are easy to loosen, which can lead to the escape of volatile harmful gases or liquid leakage, endangering the health of operators. During handling or dumping, waste liquid may overflow from the interface, polluting the environment and posing a risk of leakage.

[0004] Therefore, there is an urgent need for a leak-proof sealing device for collecting waste liquid in environmental protection cabinets with good sealing performance. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sealing and leak-proof device for collecting waste liquid in environmental protection cabinets. It has the advantages of good sealing performance and is not prone to leakage, thus solving the problems mentioned in the background technology.

[0006] This utility model provides the following technical solution: a sealing and leak-proof device for collecting waste liquid in an environmental protection cabinet, comprising a waste liquid tank, a drain pipe fixedly provided at the bottom of the waste liquid tank, a drain valve fixedly provided at the outlet end of the drain pipe, a tank cover fixedly provided at the top of the waste liquid tank, a liquid inlet provided on one side of the tank cover, an input connector fixedly provided at the top of the liquid inlet, a vent provided on the other side of the tank cover, a waste gas purification component for filtering waste gas fixedly provided at the top of the tank cover, a sealing component for sealing the liquid inlet and the vent provided in the middle of the tank cover, and a limiting component for limiting the sealing component on one side of the top of the tank cover.

[0007] As a preferred technical solution of this utility model, the exhaust gas purification component includes an installation chamber, the bottom end of which is fixedly connected to the top end of the barrel cover, a support ring is fixedly provided on the inner wall of the bottom of the installation chamber, an activated carbon filter cotton is engaged with the top end of the support ring, a threaded cap is threadedly connected to the top end of the installation chamber, and a protective net is fixedly provided in the middle of the top end of the threaded cap.

[0008] As a preferred embodiment of this utility model, a base is fixedly provided on both sides of the bottom end of the waste liquid tank, and a liquid level window is fixedly provided on the surface of the waste liquid tank.

[0009] As a preferred embodiment of this utility model, the sealing assembly includes a pressure rod, and guide posts that are slidably connected to the bucket lid are fixedly provided on both sides of the bottom end of the pressure rod. A spring is sleeved on the surface of the guide post, and the spring is located between the pressure rod and the bucket lid. A bent rod is fixedly connected to the bottom end of the guide post, and a sealing plate for sealing the liquid inlet and the vent is fixedly provided at one end of the bent rod.

[0010] As a preferred embodiment of this utility model, a rubber sheet is adhered to the top of the sealing plate, and a plurality of protruding rings are fixedly provided on the top of the rubber sheet.

[0011] As a preferred embodiment of this utility model, the surface of the bucket lid has two grooves, the guide post is slidably connected to the inside of the groove, and a sealing ring is engaged inside the groove.

[0012] As a preferred technical solution of this utility model, the limiting component includes a vertical rod, a rod sleeve is fitted at the bottom of the vertical rod, a limiting block is fixedly provided at the bottom end of the vertical rod to prevent it from falling off, the bottom end of the rod sleeve is fixedly connected to one side of the top of the bucket lid, a rubber ring is engaged with the inner wall of the top of the rod sleeve, and a baffle is fixedly provided at the top of the vertical rod.

[0013] As a preferred embodiment of this utility model, handles are fixedly provided on the top of both sides of the waste liquid tank, and anti-slip sleeves are provided on the surface of the handles. A sealing gasket for sealing the lid is snapped into the top of the waste liquid tank, and the bottom of the lid is fixedly connected to the top of the waste liquid tank by screws.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The sealing assembly can simultaneously seal both the inlet and the vent, preventing waste liquid from evaporating through both. This also prevents waste liquid from overflowing during handling and unloading, reducing the risk of leakage and ensuring safety and reliability, thus protecting the health of operators. Furthermore, the sealing assembly can simultaneously open both the inlet and the vent. Connecting the inlet connector to the waste liquid recovery pipe ensures the input of waste liquid. Opening the vent allows air to escape from inside the waste liquid tank, eliminating the pressure difference between the inside and outside and preventing the waste liquid from compressing the internal air, causing increased pressure, and hindering the flow of waste liquid.

[0016] 2. During the process of inputting waste liquid, the limiting component can limit the sealing component to prevent the sealing component from rebounding. The exhaust gas purification component can filter harmful substances in the discharged gas. The waste liquid can be discharged centrally through the drain pipe and drain valve, without the need to dump the waste liquid. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the waste liquid tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the bucket lid of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the exhaust gas purification component of this utility model;

[0021] Figure 5 This is a schematic diagram of the sealing assembly of this utility model;

[0022] Figure 6 This is a schematic diagram of the limiting component of this utility model.

[0023] In the diagram: 1. Waste liquid tank; 2. Drain pipe; 3. Drain valve; 4. Tank lid; 5. Input connector; 6. Waste gas purification component; 601. Installation chamber; 602. Support ring; 603. Activated carbon filter cotton; 604. Threaded cap; 605. Protective net; 7. Sealing component; 701. Pressure rod; 702. Guide post; 703. Spring; 704. Bending rod; 705. Sealing plate; 706. Rubber sheet; 707. Convex ring; 8. Limiting component; 801. Upright rod; 802. Rod sleeve; 803. Limiting block; 804. Rubber ring; 805. Baffle; 9. Liquid inlet; 10. Vent; 11. Liquid level window; 12. Base; 13. Sealing gasket; 14. Handle; 15. Sealing ring. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6The waste liquid collection sealing and leak-proof device for the environmental protection cabinet includes a waste liquid tank 1, a drain pipe 2 fixedly installed at the bottom of the waste liquid tank 1, a drain valve 3 fixedly installed at the outlet end of the drain pipe 2, a tank cover 4 fixedly installed at the top of the waste liquid tank 1, an inlet 9 opened on one side of the tank cover 4, an input connector 5 fixedly installed at the top of the inlet 9, a vent 10 opened on the other side of the tank cover 4, a waste gas purification component 6 for filtering waste gas fixedly installed at the top of the tank cover 4, and a sealing component 7 for sealing the inlet 9 and the vent 10 in the middle of the tank cover 4. The sealing component 7 allows for simultaneous... Sealing the inlet 9 and vent 10 prevents waste liquid from evaporating through them, ensuring safety and reliability and protecting the health of operators. The sealing assembly 7 allows the inlet 9 and vent 10 to be opened simultaneously. The input connector 5, connected to the waste liquid recovery pipe, ensures the input of waste liquid. The vent 10, once opened, allows the air inside the waste liquid tank 1 to be discharged, preventing the waste liquid from compressing the internal air, causing an increase in air pressure, and hindering the flow of waste liquid. A limiting assembly 8, which limits the sealing assembly 7, is provided on one side of the top of the tank cover 4.

[0026] In this embodiment, preferably, the exhaust gas purification component 6 includes an installation chamber 601. The bottom end of the installation chamber 601 is fixedly connected to the top end of the barrel cover 4. A support ring 602 is fixedly provided on the inner wall of the bottom of the installation chamber 601. An activated carbon filter cotton 603 is engaged with the top end of the support ring 602. A threaded cap 604 is threadedly connected to the top end of the installation chamber 601. A protective net 605 is fixedly provided in the middle of the top end of the threaded cap 604. The activated carbon filter cotton 603 can be limited by the support ring 602 and the threaded cap 604. The activated carbon filter cotton 603 can filter harmful substances in the exhaust gas. The activated carbon filter cotton 603 can be easily replaced by loosening the threaded cap 604.

[0027] In this embodiment, preferably, the sealing assembly 7 includes a pressure rod 701. Guide posts 702, which are slidably connected to the lid 4, are fixedly provided on both sides of the bottom end of the pressure rod 701. A spring 703 is sleeved on the surface of the guide post 702, located between the pressure rod 701 and the lid 4. A bent rod 704 is fixedly connected to the bottom end of the guide post 702. A sealing plate 705 for sealing the liquid inlet 9 and the vent 10 is fixedly provided at one end of the bent rod 704. A rubber sheet 706 is adhered to the top of the sealing plate 705, and several protruding rings 707 are fixedly provided at the top of the rubber sheet 706. Two grooves are formed on the surface of the lid 4, and the guide post 702 and the grooves are connected... The column groove is connected by a sliding joint and a sealing ring 15 is engaged inside. The spring 703 supports the pressure rod 701. The pressure rod 701, through the guide post 702 and the bent rod 704, can make the sealing plate 705 fit with the liquid inlet 9 and the vent 10, and can maintain the stability of the pressure between the sealing plate 705 and the lid 4. The rubber sheet 706 can provide multiple seals for the liquid inlet 9 and the vent 10 through several convex rings 707, which has good sealing performance. The sealing ring 15 can seal between the column groove and the guide post 702. By pressing the pressure rod 701, the two sealing plates 705 can be pushed down at the same time, which can open the liquid inlet 9 and the vent 10 at the same time.

[0028] In this embodiment, preferably, the limiting component 8 includes a vertical rod 801, a rod sleeve 802 is fitted at the bottom of the vertical rod 801, a limiting block 803 is fixedly provided at the bottom end of the vertical rod 801 to prevent it from falling off, the bottom end of the rod sleeve 802 is fixedly connected to one side of the top of the bucket lid 4, a rubber ring 804 is engaged with the inner wall of the top of the rod sleeve 802, and a baffle 805 is fixedly provided at the top of the vertical rod 801. The limiting block 803 can prevent the vertical rod 801 from falling off, and the rubber ring 804 can provide rotational damping for the vertical rod 801. By rotating the vertical rod 801, the baffle 805 is rotated to the top of the sealing component 7, which can quickly limit the sealing component 7 and avoid the rebound of the sealing component 7.

[0029] In this embodiment, preferably, bases 12 are fixedly provided on both sides of the bottom end of the waste liquid tank 1, liquid level windows 11 are fixedly provided on the surface of the waste liquid tank 1, handles 14 are fixedly provided on the top of both sides of the waste liquid tank 1, and anti-slip sleeves are provided on the surface of the handles 14. A sealing gasket 13 for sealing the tank lid 4 is snapped into the top of the waste liquid tank 1. The bottom end of the tank lid 4 is fixedly connected to the top end of the waste liquid tank 1 by screws. The bases 12 can provide stable support for both sides of the bottom end of the waste liquid tank 1. The liquid level windows 11 can monitor the liquid level of the waste liquid inside the waste liquid tank 1. The sealing gasket 13 can ensure the sealing between the tank lid 4 and the waste liquid tank 1.

[0030] In use, first connect the waste liquid recovery pipe to the input connector 5, then press the pressure rod 701 of the sealing component 7 to compress the spring 703, and at the same time push the two sealing plates 705 down, which will open the liquid inlet 9 and the vent 10 at the same time, allowing the waste liquid to flow into the waste liquid tank 1. After the vent 10 is opened, the air inside the waste liquid tank 1 can be discharged, which can eliminate the pressure difference between the inside and outside, and prevent the waste liquid from compressing the internal air after entering, causing the air pressure to rise and hindering the flow of waste liquid. The activated carbon filter cotton 603 can filter out harmful substances in the discharged gas.

[0031] After the pressure rod 701 is pressed, the upright rod 801 of the limiting component 8 is rotated, and the baffle 805 is rotated to the top of the pressure rod 701. The baffle 805 can quickly limit the pressure rod 701 and prevent the pressure rod 701 from rebounding. During the collection of waste liquid, the liquid level of the waste liquid can be observed through the liquid level window 11.

[0032] After the waste liquid is collected, the baffle 805 is rotated back to its original position. The spring 703 can support the pressure rod 701. The pressure rod 701 can make the sealing plate 705 fit with the liquid inlet 9 and the vent 10 through the guide post 702 and the bent rod 704, and can maintain the stability of the pressure between the sealing plate 705 and the lid 4. The rubber sheet 706 can provide multiple seals for the liquid inlet 9 and the vent 10 through several convex rings 707, which has good sealing performance. The sealing ring 15 can seal between the column groove and the guide post 702. The waste liquid tank 1 can prevent the waste liquid from overflowing during transportation and dumping, reducing the risk of leakage.

[0033] When waste liquid needs to be discharged, open the drain valve 3, and the waste liquid can be discharged centrally through the drain pipe 2 and the drain valve 3 without the need to pour the waste liquid, thus avoiding human contact with the waste liquid. The staff can replace the activated carbon filter cotton 603 by loosening the threaded cap 604.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing and leak-proof device for collecting waste liquid in an environmental protection cabinet, comprising a waste liquid tank (1), characterized in that: The bottom of the waste liquid tank (1) is fixedly provided with a drain pipe (2), the outlet end of the drain pipe (2) is fixedly provided with a drain valve (3), the top of the waste liquid tank (1) is fixedly provided with a tank cover (4), one side of the tank cover (4) is provided with a liquid inlet (9), the top of the liquid inlet (9) is fixedly provided with an input connector (5), the other side of the tank cover (4) is provided with a vent (10), the top of the tank cover (4) is provided with a waste gas purification component (6) for filtering waste gas, the middle of the tank cover (4) is provided with a sealing component (7) for sealing the liquid inlet (9) and the vent (10), and one side of the top of the tank cover (4) is provided with a limiting component (8) for limiting the sealing component (7).

2. The sealing and leak-proof device for waste liquid collection in the environmental protection cabinet according to claim 1, characterized in that: The exhaust gas purification component (6) includes an installation chamber (601), the bottom end of which is fixedly connected to the top end of the barrel cover (4). A support ring (602) is fixedly provided on the inner wall of the bottom of the installation chamber (601). An activated carbon filter cotton (603) is engaged with the top end of the support ring (602). A threaded cap (604) is threadedly connected to the top end of the installation chamber (601). A protective net (605) is fixedly provided in the middle of the top end of the threaded cap (604).

3. The sealing and leak-proof device for waste liquid collection in the environmental protection cabinet according to claim 1, characterized in that: The waste liquid tank (1) is fixedly provided with bases (12) on both sides of the bottom end, and the surface of the waste liquid tank (1) is fixedly provided with liquid level windows (11).

4. The sealing and leak-proof device for waste liquid collection in the environmental protection cabinet according to claim 1, characterized in that: The sealing assembly (7) includes a pressure rod (701), and guide posts (702) that are slidably connected to the barrel lid (4) are fixedly provided on both sides of the bottom end of the pressure rod (701). A spring (703) is sleeved on the surface of the guide post (702), and the spring (703) is located between the pressure rod (701) and the barrel lid (4). A bent rod (704) is fixedly connected to the bottom end of the guide post (702), and a sealing plate (705) for sealing the liquid inlet (9) and the vent (10) is fixedly provided at one end of the bent rod (704).

5. The sealing and leak-proof device for waste liquid collection in the environmental protection cabinet according to claim 4, characterized in that: A rubber sheet (706) is bonded to the top of the sealing plate (705), and a plurality of protruding rings (707) are fixedly provided on the top of the rubber sheet (706).

6. The sealing and leak-proof device for waste liquid collection in the environmental protection cabinet according to claim 4, characterized in that: The surface of the bucket lid (4) has two grooves, the guide post (702) is slidably connected to the inside of the groove, and a sealing ring (15) is engaged inside the groove.

7. The sealing and leak-proof device for waste liquid collection in the environmental protection cabinet according to claim 1, characterized in that: The limiting component (8) includes a pole (801), a sleeve (802) is fitted at the bottom of the pole (801), a limiting block (803) is fixedly provided at the bottom end of the pole (801) to prevent it from falling off, the bottom end of the sleeve (802) is fixedly connected to one side of the top of the bucket lid (4), a rubber ring (804) is engaged with the inner wall of the top of the sleeve (802), and a baffle (805) is fixedly provided at the top of the pole (801).

8. The sealing and leak-proof device for waste liquid collection in the environmental protection cabinet according to claim 1, characterized in that: The waste liquid tank (1) has handles (14) fixedly installed on the top of both sides. The surface of the handles (14) is covered with anti-slip sleeves. The top of the waste liquid tank (1) is connected to a sealing gasket (13) to seal the lid (4). The bottom of the lid (4) is fixedly connected to the top of the waste liquid tank (1) by screws.

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