Pre-buried clean floor drain not prone to blockage and water seepage
The pre-embedded cleanroom floor drain, designed with multi-stage sealing and a sinking filter basket, solves the problems of clogging and sealing, achieves efficient drainage and reduces odors, and improves the environmental quality of the cleanroom.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGKE JINJING (SHANDONG) ENGINEERING TECHNOLOGY SERVICE CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-05-01
AI Technical Summary
Existing cleanroom floor drains are prone to clogging and have poor sealing performance, resulting in low drainage efficiency and the generation of odors, which affects the cleanroom environment.
It adopts a multi-stage sealed pre-embedded structure and a sunken filter basket design, combined with main and auxiliary water outlets and filter screens to achieve double sealing and multi-stage filtration, preventing the accumulation of solid impurities and water seepage, and enhancing drainage capacity.
It effectively prevents blockages, improves drainage efficiency, reduces maintenance frequency, reduces odor generation, and enhances the environmental quality of cleanrooms.
Smart Images
Figure CN224186895U_ABST
Abstract
Description
A pre-embedded clean floor drain that is less prone to clogging and leakage Technical Field
[0001] This utility model relates to floor drain technology, and in particular to a pre-embedded clean floor drain that is not easily clogged or leaking. Background Technology
[0002] Cleanroom floor drains are special floor drains used in various cleanrooms and purification plants. As an important interface between the drainage pipe system and the indoor floor, their performance directly affects the quality of the indoor environment.
[0003] Existing cleanroom floor drains, with their filters located at the drain inlet, are prone to accumulating solid debris and other waste at the inlet, affecting drainage efficiency and even causing blockages, requiring frequent cleaning and maintenance. Furthermore, the poor seal between the pre-installed cleanroom floor drain and the floor makes it prone to delamination, allowing water and dust to seep into the gaps, breeding bacteria, producing odors, and severely impacting the cleanroom environment. Additionally, the lack of auxiliary drainage channels means that blockages prevent proper flow diversion, resulting in low water drainage efficiency. Summary of the Invention
[0004] The technical problem this invention aims to solve is to provide a pre-embedded cleanroom floor drain that is less prone to clogging and leakage. This addresses the issue of solid impurities and other debris accumulating at the inlet of current floor drains, affecting drainage efficiency and even causing blockages that require frequent cleaning and maintenance. Furthermore, the pre-embedded cleanroom floor drain suffers from poor sealing between itself and the floor, easily leading to delamination and the seepage of water and dust into the gaps, fostering bacterial growth and producing odors that severely impact the cleanroom environment. Additionally, it lacks auxiliary drainage channels, making it unable to divert water flow after blockage, resulting in low drainage efficiency.
[0005] To address the aforementioned technical problems, this utility model provides: a pre-embedded clean floor drain that is not prone to clogging or leakage, comprising an outer shell structure for multi-stage sealing and pre-embedding of the ground. The outer shell structure also includes a detachable sunken filter basket for collecting solid dirt. The outer shell structure includes an outer shell body with a countersunk groove on its upper inner side for easy disassembly and assembly of the sunken filter basket and sealing cover. A connecting ring is also provided on one side of the outer shell body, with a transverse filling groove on one side and a longitudinal filling groove on the other side, enabling multi-stage sealing with the ground at the bottom and sides to prevent delamination and avoid water or dust infiltration. An auxiliary water outlet pipe is also provided on one side of the outer shell body, connected to the main water outlet pipe. The main water outlet pipe is connected to the main water outlet, which is located at the bottom of the outer shell body, allowing drainage to proceed even when the main water outlet is blocked, ensuring smooth drainage.
[0006] Preferably, a bottom filter screen is also provided inside the main water outlet to further filter solid dirt in the water.
[0007] Preferably, a filter screen is provided at the connection between the auxiliary water outlet pipe and the outer casing to filter the water entering the auxiliary water outlet pipe.
[0008] Preferably, the submerged filter basket includes an upper water inlet section, and the upper water inlet section is also provided with a fastening part, which fits into the countersunk groove to facilitate the connection between the submerged filter basket and the countersunk groove.
[0009] Preferably, the bottom of the buckle portion is provided with multiple sets of positioning rods in a ring shape, the positioning rods correspond to the positioning grooves, and the positioning grooves are evenly arranged in the countersunk grooves, which can be used to position and install the sunken filter basket.
[0010] Preferably, an auxiliary water outlet is also provided on the upper water inlet section, and the auxiliary water outlet corresponds to the auxiliary water outlet pipe, so as to facilitate the diversion of water into the auxiliary water outlet pipe.
[0011] Preferably, a middle slope section is provided on one side of the upper water inlet section, and a lower solid sedimentation section is provided on one side of the middle slope section. Both the middle slope section and the lower solid sedimentation section are provided with filter holes, which can guide water flow and collect solid dirt in the lower solid sedimentation section.
[0012] Preferably, the countersunk groove is also provided with a detachable sealing cover, and the sealing cover is also provided with a handle. When not in use, it can seal the outer shell to prevent odor from escaping.
[0013] The beneficial effects of this utility model are:
[0014] 1. This application uses double sealing blocks to seal the ground, which enhances its sealing performance and makes it less likely for the joint to crack and leak water, reducing the impact of water accumulation on the ground and reducing the growth of bacteria and odor in the gaps.
[0015] 2. This application uses a sunken filter basket located below the water inlet of the outer casing to avoid the accumulation of solid impurities at the ground water inlet, which would cause poor water flow.
[0016] 3. This application provides two outlets: a main outlet and a side auxiliary outlet. The auxiliary outlet prevents sewage from overflowing and reduces the impact of solid impurities on the water discharge effect, thereby reducing the frequency of dredging and maintenance.
[0017] 4. By setting up a submerged filter basket, this application can increase the drainage speed, causing solid impurities to accumulate at the bottom of the submerged filter basket, which is less likely to cause blockage of the slope steps. Therefore, it does not affect the drainage of the bottom outlet, thereby reducing the frequency of dredging and maintenance. Attached Figure Description
[0018] Figure 1 is a schematic diagram of the split structure of this utility model;
[0019] Figure 2 is a half-sectional view of the outer shell structure in this utility model;
[0020] Figure 3 is a partial enlarged structural diagram of part A in Figure 2;
[0021] Figure 4 is a half-sectional view of the sunken filter basket in this utility model.
[0022] Figure 5 is a front view cross-sectional structural diagram of the assembled state of the sunken filter basket and the outer shell structure in this utility model.
[0023] Figure 6 is a partial enlarged structural diagram of part B in Figure 5;
[0024] In the diagram: 1. Outer shell structure, 2. Recessed filter basket, 3. Handle, 4. Sealing cover, 5. Ground, 21. Upper water inlet section, 22. Auxiliary water outlet, 23. Fastener, 24. Positioning rod, 25. Middle slope section, 26. Lower solid sedimentation section, 101. Outer shell, 102. Countersunk groove, 103. Auxiliary water outlet pipe, 104. Main water outlet, 105. Bottom filter screen, 106. Main water outlet pipe, 107. Positioning groove, 108. Upper filter screen, 109. Connecting ring, 110. Horizontal filling groove, 111. Longitudinal filling groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All directional indicators (such as up, down, left, right, front, back, etc.) in the present utility model are only used to explain the relative positional relationship and movement of each component in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicator will also change accordingly.
[0026] Please refer to Figures 1-6. A pre-embedded clean floor drain that is not prone to clogging and leakage includes an outer shell structure 1. The outer shell structure 1 also has a detachable sinking filter basket 2, which can collect solid dirt by sinking. The outer shell structure 1 includes an outer shell body 101. A countersunk groove 102 is provided on the upper side of the inner shell body 101 to facilitate the disassembly and assembly of the sinking filter basket 2 and the sealing cover 4. At the same time, the sinking filter basket 2 can be suspended. A connecting ring 109 is also provided on one side of the outer surface of the outer shell body 101. A transverse filling groove 110 is provided on one side of the connecting ring 109, and a longitudinal filling groove 111 is provided on the other side of the connecting ring 109. This can provide multi-level sealing with the bottom and sides of the ground 5 to prevent delamination and avoid water or dust infiltration.
[0027] An auxiliary water outlet pipe 103 is also provided on one side of the outer casing 101. The auxiliary water outlet pipe 103 is connected to the main water outlet pipe 106, which is connected to the main water outlet 104. The main water outlet 104 is located at the bottom inside the outer casing 101. Under normal circumstances, sewage flows into the water outlet pipe from the main water outlet 104. When the bottom of the floor drain is blocked or the water flow is not smooth, sewage can be discharged from the auxiliary water outlet 22 on the side to prevent sewage overflow. At the same time, it can reduce the impact of solid impurities clogging the floor drain on the drainage effect, thereby reducing the frequency of unclogging and maintenance. In addition, the auxiliary water outlet 22 can also prevent sewage overflow when the drainage volume is large and the flow is rapid.
[0028] Furthermore, a bottom filter screen 105 is installed inside the main outlet 104, which can further filter solid dirt in the water and reduce clogging of the main outlet pipe 106.
[0029] Furthermore, a filter screen 108 is provided at the connection between the auxiliary water outlet pipe 103 and the outer casing 101, which can filter the water entering the auxiliary water outlet pipe 103 and prevent blockage of the auxiliary water outlet pipe.
[0030] Please refer to Figures 4 and 5. The submerged filter basket 2 includes an upper water inlet section 21. The upper water inlet section 21 is also provided with a latching part 23, which fits snugly against the countersunk groove 102, facilitating the connection between the submerged filter basket 2 and the countersunk groove 102. Multiple sets of positioning rods 24 are evenly arranged in a ring at the bottom of the latching part 23. The positioning rods 24 correspond to positioning grooves 107, which are evenly arranged within the countersunk groove 102, enabling the submerged filter basket 2 to be positioned and installed. An auxiliary water outlet 22 is also provided on the upper water inlet section 21, which corresponds to an auxiliary water outlet pipe 103, facilitating the diversion of water into the auxiliary water outlet pipe 103. The upper water inlet section 21 is also provided with a middle slope section 25 on one side, and a lower solid sedimentation section 26 is provided with one side of the middle slope section 25. Both the middle slope section 25 and the lower solid sedimentation section 26 are provided with filter holes, which can guide water flow and collect solid dirt in the lower solid sedimentation section 26. Specifically, the middle slope section 25 is a slope step of 10° to 15°. The slope step design can increase the drainage speed, so that solid impurities accumulate more in the solid sedimentation section at the bottom of the filter basket, which is less likely to cause blockage of the slope step and has little impact on the water output effect of the filter basket. Therefore, it does not affect the drainage of the main outlet 104, thereby reducing the frequency of dredging and maintenance.
[0031] Furthermore, the main outlet pipe 106 extends vertically downwards and then bends into a curved shape, which is the anti-backflow section. It can be a commonly used S-shaped bend, U-shaped bend, or P-shaped bend.
[0032] Furthermore, a detachable sealing cover 4 is provided inside the countersunk groove 102, and a handle 3 is provided on the sealing cover 4. When not in use, it can seal the outer shell 101 to prevent odor from escaping.
[0033] The working principle of this application is as follows:
[0034] When pre-embedding the outer casing 101, sealant can be injected into the transverse injection groove 110 and the longitudinal injection groove 111. Then, by pressing, the outer casing 101 is tightly attached to the ground 5. The sealant in the transverse injection groove 110 and the longitudinal injection groove 111 is bonded to the side of the ground 5. After the sealant dries, a double seal is formed between the side and the ground 5, which can greatly reduce the probability of water seepage from cracks and the impact of water accumulation on the ground 5, and reduce the growth of bacteria and odors in the gaps. Then, the buckle part 23 on the sunken filter basket 2 is inserted into the countersunk groove 102, and the positioning rod 2 is simultaneously... 4. Insert it into the positioning groove 107 and align the auxiliary water outlet 22 with the auxiliary water outlet pipe. When water flows into the upper water inlet section 21, the upper water inlet section 21 guides the water flow and accelerates the water flow rate through the middle slope section 25. At the same time, it collects solid dirt in the water. The filtered water is then discharged through the main water outlet 104 to the main water outlet pipe 106. Meanwhile, when the water flow is large or the main water outlet 104 is blocked, as the liquid level rises, the water is transported through the auxiliary water outlet 22 to the auxiliary water outlet pipe 103. The auxiliary water outlet pipe 103 then transports the water to the main water outlet pipe 106 for discharge.
[0035] 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 pre-embedded clean floor drain that is not easily clogged or leaking, characterized in that: The system includes an outer shell structure (1) for multi-stage sealing and pre-embedding of the ground (5). The outer shell structure (1) is also equipped with a detachable sunken filter basket (2). The outer shell structure (1) includes an outer shell body (101). A countersunk groove (102) is provided on the upper side of the inner shell body (101). A connecting ring (109) is also provided on one side of the outer surface of the outer shell body (101). A transverse filling groove (110) is provided on one side of the connecting ring (109). A longitudinal filling groove (111) is provided on the other side of the connecting ring (109). An auxiliary water outlet pipe (103) is also provided on one side of the outer shell body (101). The auxiliary water outlet pipe (103) is connected to the main water outlet pipe (106). The main water outlet pipe (106) is connected to the main water outlet (104). The main water outlet (104) is located at the bottom of the inner shell body (101).
2. The pre-embedded clean floor drain that is not easily clogged or leaking according to claim 1, characterized in that: The main outlet (104) is also equipped with a bottom filter screen (105).
3. The pre-embedded clean floor drain that is not easily clogged or leaking as described in claim 1, characterized in that: An upper filter screen (108) is installed at the connection between the auxiliary water outlet pipe (103) and the outer shell (101).
4. A pre-embedded clean floor drain that is not easily clogged or leaking, as described in claim 1, is characterized in that: The submerged filter basket (2) includes an upper water inlet section (21), and a fastener (23) is provided on the upper water inlet section (21), which fits into the countersunk groove (102).
5. The clog and water seepage resistant pre-embedded clean floor drain as claimed in claim 4 wherein: The bottom of the buckle part (23) is uniformly provided with multiple sets of positioning rods (24) in a ring shape. The positioning rods (24) correspond to the positioning grooves (107), and the positioning grooves (107) are uniformly provided in the countersunk grooves (102).
6. The pre-buried clean floor drain which is not easy to be blocked and permeated according to claim 4 or 5, characterized in that: An auxiliary water outlet (22) is also provided on the upper water inlet section (21), and the auxiliary water outlet (22) corresponds to the auxiliary water outlet pipe (103).
7. A pre-embedded clean floor drain that is not easily clogged or leaking, as described in claim 6, is characterized in that: A middle slope section (25) is provided on one side of the upper water inlet section (21), and a lower solid sedimentation section (26) is provided on one side of the middle slope section (25). Filter holes are provided on both the middle slope section (25) and the lower solid sedimentation section (26).
8. A pre-embedded clean floor drain that is not easily clogged or leaking, as described in claim 1, characterized in that: The countersunk groove (102) is also provided with a detachable sealing cover (4), and the sealing cover (4) is also provided with a handle (3).