Sterile pharmaceutical clean room floor drain
By designing a separate sterile cover and filter structure in the sterile floor drain, the problem of contamination caused by pipe exposure during cleaning is solved, achieving protection and efficient cleaning of the clean area and ensuring the stability of the clean area.
Patent Information
- Application Number
- CN202522299043.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-30
AI Technical Summary
When cleaning existing sterile floor drains, the filter and cover are connected together, causing the drain pipe to be exposed in the clean area, resulting in backflow of odors and microorganisms, which contaminates the clean area.
The design incorporates a structure that separates the sterile cover from the drain filter. Through a cleaning and protection mechanism and a filter cleaning mechanism, the cover is ensured to continue covering the pipe during cleaning to prevent backflow, while the filter cleaning mechanism quickly removes impurities from the filter.
It effectively prevents contamination of the clean area, improves the efficiency and cleanliness of floor drain cleaning, and ensures the stability of the clean area.
Smart Images

Figure CN224678837U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pharmaceutical construction technology, and more specifically, it relates to a sterile floor drain in the clean area of a sterile pharmaceutical workshop. Background Technology
[0002] In the production process of aseptic pharmaceutical workshops, the clean area is the core area for drug quality control. Its environmental indicators such as microorganisms, suspended particles, and pressure gradients must strictly follow the standards of pharmaceutical production environment. Wastewater is generated when pharmaceutical workshops produce drugs. The wastewater needs to be discharged through aseptic floor drains. Aseptic floor drains prevent the spread of microorganisms, odors, exhaust gases and pests in the drainage pipe network to the clean area, which is to ensure the stability of the aseptic environment in the clean area.
[0003] According to CN201922108061.0, this utility model discloses a sterile floor drain, including a tank, an outlet pipe, and an inlet pipe. The inlet pipe is installed through one side of the tank, and a flange is fixedly installed on one side of the inlet pipe. The outlet pipe is fixedly installed on the other side of the tank. A sealing component is movably installed on the top of the tank, and a positioning component is movably installed on the bottom of the tank. Bolts are installed through both sides of the interior of the positioning component. This utility model, through a series of structural features, ensures that the inlet pipe is higher than the outlet pipe during use. Combined with a middle partition, this achieves a "water seal" structure, effectively preventing external bacteria and odors from entering the sterile space.
[0004] Based on the above, existing sterile floor drains generally filter water through a filter screen and use a protective cover structure to protect the floor drain pipe. The filter screen and the protective cover are connected together. When the staff cleans the floor drain, when they remove the filter screen and the protective cover from the floor drain for cleaning, the drain pipe connected to the floor drain is exposed to the clean area, causing odors and microorganisms in the pipe to flow back into the clean area, which can easily contaminate the clean area. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model provides a sterile floor drain for the clean area of a sterile pharmaceutical workshop. This solves the problem that existing sterile floor drains typically filter water using a filter screen and protect the drain pipe with a protective cover. Since the filter screen and cover are connected, when workers clean the drain, removing the filter screen and cover exposes the drain pipe to the clean area, causing odors and microorganisms to flow back into the clean area, easily contaminating it.
[0006] The purpose and effectiveness of this novel sterile floor drain in the clean area of a sterile pharmaceutical workshop are achieved through the following specific technical means: A sterile floor drain in the clean area of a sterile pharmaceutical workshop includes a drain body, a drain pipe, a sterile cover, a drain filter, a sealing cover, a cleaning and protection mechanism, and a filter cleaning mechanism. The drain pipe is fixedly connected to the middle of the lower end face of the drain body. The sterile cover is located in the middle of the lower side of the inner end face of the drain body. The drain filter is inserted into the upper end face of the drain body and is located on the upper side of the sterile cover. The sealing cover is inserted into the upper end face of the drain body and is located on the upper side of the drain filter. There are three sets of cleaning and protection mechanisms, each set located inside the drain body. The filter cleaning mechanism is located on the drain filter and the sealing cover.
[0007] Furthermore, the cleaning and protection mechanism includes: a sterile limiting block and a connecting rod; the sterile limiting block is fixedly connected to the lower side of the inner end face of the drain body, and the sterile limiting block has a cylindrical structure; the connecting rod is fixedly connected to the lower end face of the sterile cover, and the connecting rod has a cylindrical structure and is inserted into the inside of the sterile limiting block.
[0008] Furthermore, the cleaning and protection mechanism also includes: a connecting arc surface and a connecting hemisphere; the connecting arc surface is located on the upper side of the inner end face of the sterile limiting block, and the connecting arc surface has a circular arc structure; the connecting hemisphere is fixedly connected to the lower end face of the connecting support rod, and the connecting hemisphere has a semi-circular structure.
[0009] Furthermore, the filter cleaning mechanism includes: a filter handle; the filter handle is fixedly connected to the middle position of the upper end face of the drain filter, the filter handle is located on the upper side of the inner end face of the drain body, and the filter handle is located on the lower side of the sealing cover.
[0010] Furthermore, the filter cleaning mechanism also includes a sealing groove and a sealing connecting block; the sealing groove is located in the middle of the upper end face of the sealing cover; the sealing connecting block is fixedly connected to the middle of the upper end face of the sealing cover, and the sealing connecting block is located on the upper side of the sealing groove.
[0011] Furthermore, the filter cleaning mechanism also includes: cleaning inserts; multiple sets of cleaning inserts are provided, and the multiple sets of cleaning inserts are respectively fixedly connected to the lower end face of the sealing cover, and the multiple sets of cleaning inserts are respectively inserted into the filter holes of the drain filter.
[0012] Compared with the prior art, the present invention has the following beneficial effects: This utility model employs a cleaning and protection mechanism, enabling a sterile cover to be installed on the inner end face of the drain body via a sterile limiting block and connecting rod. The sterile cover protects the drain pipe, and there is no connection between the sterile cover and the drain filter. When staff clean the drain filter, the sterile cover continues to protect the drain pipe, preventing the drain pipe from being exposed to the outside when staff clean the drain filter, which could lead to odors and microorganisms flowing back into the clean area, thus ensuring the cleanliness of the clean area.
[0013] This utility model employs a filter cleaning mechanism. When workers remove the drain filter and sealing cover from the drain body for cleaning, the drain filter holes contain debris. The sealing cover moves the cleaning insert to insert into the drain filter holes, quickly cleaning the impurities inside the drain filter holes and improving the cleaning efficiency of the drain filter. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the sterile floor drain of this utility model.
[0015] Figure 2 This is a schematic diagram of the disassembled structure of the sterile floor drain of this utility model.
[0016] Figure 3 This is a structural diagram showing the disassembled inner end face of the drain body of this utility model.
[0017] Figure 4 This is a cross-sectional structural diagram of the main body of the floor drain of this utility model.
[0018] Figure 5 This is a structural schematic diagram of the cleaning and protection mechanism of this utility model.
[0019] Figure 6 This is a bottom view of the structure of the filter cleaning mechanism of this utility model.
[0020] Figure 7 This is a top view of the structure of the filter cleaning mechanism of this utility model.
[0021] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Drain body; 2. Drain pipe; 3. Sterile cover; 4. Drain filter; 5. Sealing cover; 6. Sterile limiting block; 601. Connecting arc surface; 7. Connecting support rod; 701. Connecting hemisphere; 8. Filter handle; 9. Sealing groove; 10. Sealing connecting block; 11. Cleaning insert. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0023] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown: This utility model provides a sterile floor drain for the clean area of a sterile pharmaceutical workshop, including a floor drain body 1, a floor drain pipe 2, a sterile cover 3, a floor drain filter 4, a sealing cover 5, and a cleaning and protection mechanism; the floor drain pipe 2 is fixedly connected to the middle position of the lower end face of the floor drain body 1; the sterile cover 3 is located at the middle position of the lower side of the inner end face of the floor drain body 1; the floor drain filter 4 is inserted and connected to the upper end face of the floor drain body 1, and the floor drain filter 4 is located on the upper side of the sterile cover 3; the sealing cover 5 is inserted and connected to the upper end face of the floor drain body 1, and the sealing cover 5 is located on the upper side of the floor drain filter 4; the cleaning and protection mechanism is provided in three sets, and the three sets of cleaning and protection mechanisms are respectively set inside the floor drain body 1.
[0024] The cleaning and protection mechanism includes a sterile limiting block 6 and a connecting rod 7. The sterile limiting block 6 is fixedly connected to the lower side of the inner end face of the drain body 1 and has a cylindrical structure. The connecting rod 7 is fixedly connected to the lower end face of the sterile cover 3 and has a cylindrical structure. The connecting rod 7 is inserted into the sterile limiting block 6. During use, when the sterile cover 3 is installed on the inner end face of the drain body 1, the movement of the sterile cover 3 drives the connecting rod 7 to move. The connecting rod 7 moves and inserts into the sterile limiting block 6, ensuring the stability of the sterile cover 3 on the inner end face of the drain body 1.
[0025] The cleaning and protection mechanism also includes: a connecting arc surface 601 and a connecting hemisphere 701; the connecting arc surface 601 is located on the upper side of the inner end face of the sterile limiting block 6, and the connecting arc surface 601 has a circular arc structure; the connecting hemisphere 701 is fixedly connected to the lower end face of the connecting support rod 7, and the connecting hemisphere 701 has a semi-circular structure. During use, the movement of the connecting support rod 7 causes the connecting hemisphere 701 to move. When the connecting support rod 7 is inserted into the sterile limiting block 6, the shape between the connecting arc surface 601 and the connecting hemisphere 701 facilitates and quickly inserts the connecting support rod 7 into the sterile limiting block 6.
[0026] The specific usage and function of this first embodiment are as follows: During use, when the sterile cover 3 is installed on the inner end face of the drain body 1, the movement of the sterile cover 3 drives the connecting support rod 7 to move. The connecting support rod 7 moves and inserts into the sterile limiting block 6, ensuring the stability of the sterile cover 3 on the inner end face of the drain body 1. The movement of the connecting support rod 7 drives the connecting hemisphere 701 to move. When the connecting support rod 7 is inserted into the sterile limiting block 6, the shape between the connecting arc surface 601 and the connecting hemisphere 701 makes it convenient and quick to insert the connecting support rod 7 into the sterile limiting block 6, preventing the drain pipe from being exposed during drain cleaning, which could cause odor and microorganisms in the pipe to flow back into the clean area.
[0027] Example 2: Based on Example 1, as shown in the appendix Figure 6 and attached Figure 7 As shown: This utility model provides a sterile floor drain for the clean area of a sterile pharmaceutical workshop, and also includes a filter cleaning mechanism. The filter cleaning mechanism is set on the floor drain filter 4 and the sealing cover 5. The filter cleaning mechanism includes: a filter handle 8; the filter handle 8 is fixedly connected to the middle position of the upper end face of the floor drain filter 4, the filter handle 8 is located on the upper side of the inner end face of the floor drain body 1, and the filter handle 8 is located on the lower side of the sealing cover 5. During use, when it is necessary to clean the floor drain filter 4, the staff holds the filter handle 8, and the movement of the filter handle 8 causes the floor drain filter 4 to move, and the floor drain filter 4 is removed from the floor drain body 1.
[0028] The filter cleaning mechanism also includes a sealing groove 9 and a sealing connecting block 10. The sealing groove 9 is located in the middle of the upper surface of the sealing cover 5. The sealing connecting block 10 is fixedly connected to the middle of the upper surface of the sealing cover 5. The sealing connecting block 10 is located on the upper side of the sealing groove 9. During use, when the staff takes the sealing cover 5, the staff places their hand on the sealing connecting block 10. The movement of the sealing connecting block 10 causes the sealing cover 5 to move, and the sealing cover 5 is removed from the drain body 1.
[0029] The filter cleaning mechanism also includes a cleaning insert 11. Multiple sets of cleaning inserts 11 are provided, and each set of cleaning inserts 11 is fixedly connected to the lower end face of the sealing cover 5. The multiple sets of cleaning inserts 11 are inserted into the filter holes of the drain filter 4. During use, when the drain filter 4 needs to be cleaned, if there are impurities inside the filter holes of the drain filter 4, the sealing cover 5 moves, causing the cleaning inserts 11 to move. The cleaning inserts 11 move and insert into the filter holes of the drain filter 4 to clean the impurities inside the filter holes of the drain filter 4.
[0030] The specific usage and function of this second embodiment are as follows: During use, when the drain filter 4 needs to be cleaned, the worker holds the filter handle 8, and the filter handle 8 moves, causing the drain filter 4 to move and be removed from the drain body 1. When the worker takes the sealing cover 5, the worker places their hand on the sealing connecting block 10, and the sealing connecting block 10 moves, causing the sealing cover 5 to move and be removed from the drain body 1. When the drain filter 4 needs to be cleaned, if there are impurities inside the filter holes of the drain filter 4, the sealing cover 5 moves, causing the cleaning insert 11 to move. The cleaning insert 11 moves and inserts into the filter holes of the drain filter 4 to clean the impurities inside the filter holes of the drain filter 4, making it easier to clean the drain.
Claims
1. A sterile floor drain in a clean area of a sterile pharmaceutical workshop, comprising a floor drain body (1), a floor drain pipe (2), a sterile cover (3), a floor drain filter (4), a sealing cover (5), a cleaning and protection mechanism, and a filter cleaning mechanism; the floor drain pipe (2) is fixedly connected to the middle position of the lower end face of the floor drain body (1); characterized in that: The sterile cover (3) is located in the middle of the lower side of the inner end face of the drain body (1); the drain filter (4) is inserted and connected to the upper end face of the drain body (1), and the drain filter (4) is located on the upper side of the sterile cover (3); the sealing cover (5) is inserted and connected to the upper end face of the drain body (1), and the sealing cover (5) is located on the upper side of the drain filter (4); the cleaning and protection mechanism is provided in three sets, and the three sets of cleaning and protection mechanisms are respectively set inside the drain body (1); the filter cleaning mechanism is set on the drain filter (4) and the sealing cover (5).
2. The sterile floor drain in the clean area of a sterile pharmaceutical workshop as described in claim 1, characterized in that: The cleaning and protection mechanism includes: a sterile limiting block (6) and a connecting rod (7); the sterile limiting block (6) is fixedly connected to the lower side of the inner end face of the drain body (1), and the sterile limiting block (6) is a cylindrical structure; the connecting rod (7) is fixedly connected to the lower end face of the sterile cover (3), and the connecting rod (7) is a cylindrical structure, and the connecting rod (7) is inserted into the inside of the sterile limiting block (6).
3. The sterile floor drain in the clean area of a sterile pharmaceutical workshop as described in claim 2, characterized in that: The cleaning and protection mechanism further includes: a connecting arc surface (601) and a connecting hemisphere (701); the connecting arc surface (601) is located on the upper side of the inner end face of the sterile limiting block (6), and the connecting arc surface (601) is a circular arc surface structure; the connecting hemisphere (701) is fixedly connected to the lower end face of the connecting support rod (7), and the connecting hemisphere (701) is a semi-circular structure.
4. The sterile floor drain in the clean area of a sterile pharmaceutical workshop as described in claim 1, characterized in that: The filter cleaning mechanism includes: a filter handle (8); the filter handle (8) is fixedly connected to the middle position of the upper end face of the floor drain filter (4), the filter handle (8) is located on the upper side of the inner end face of the floor drain body (1), and the filter handle (8) is located on the lower side of the sealing cover (5).
5. The sterile floor drain in the clean area of a sterile pharmaceutical workshop as described in claim 1, characterized in that: The filter cleaning mechanism also includes a sealing groove (9) and a sealing connecting block (10); the sealing groove (9) is located in the middle of the upper end face of the sealing cover (5); the sealing connecting block (10) is fixedly connected to the middle of the upper end face of the sealing cover (5), and the sealing connecting block (10) is located on the upper side of the sealing groove (9).
6. The sterile floor drain in the clean area of a sterile pharmaceutical workshop as described in claim 1, characterized in that: The filter cleaning mechanism also includes a cleaning insert (11); there are multiple sets of cleaning inserts (11), which are fixedly connected to the lower end face of the sealing cover (5) and inserted into the filter holes on the drain filter (4).
Citation Information
Patent Citations
Sterile floor drain
CN211285917U