Optimized structure of water passing hole of septic tank
By eliminating the water pipe in the septic tank and installing a shield outside the water inlet, the problems of water pipe deflection and blockage were solved, thus achieving an anti-clogging effect for the septic tank.
Patent Information
- Application Number
- CN202520024310.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In existing septic tanks, the water pipes may be deviated from their intended path, and solidified substances may enter the next reaction tank directly without initial fermentation, leading to blockage problems.
An optimized structure for the water passage hole is adopted, eliminating the water passage pipe and installing a shield outside the water passage hole. The shield is located on the side of the water inlet and is made of PE, PP or PVC. The cross-section is semi-circular or rectangular, and the lower end of the shield is at least 5cm away from the lower edge of the water passage hole.
This effectively prevents the water pipe from deflecting and shifting, preventing solidified substances from directly entering the next reaction tank and improving the septic tank's anti-clogging effect.
Smart Images

Figure CN223705445U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of septic tank technology, specifically to an optimized structure for the water passage holes in a septic tank. Background Technology
[0002] Wastewater generated during human life is one of the main sources of water pollution. Direct discharge of toilet wastewater can cause a certain degree of environmental damage. Septic tanks are devices that treat feces and filter and settle them. The principle is that solids decompose at the bottom of the tank, while the upper layer of water flows into the pipes to prevent blockage and allow sufficient time for the solids to hydrolyze. Currently, most septic tanks are three-compartment septic tanks divided by partitions. A water pipe is installed in the middle of the partitions. After long-term use, the water pipe may deviate from its original position. When the liquid level reaches the height of the water pipe, some solids entering the primary anaerobic tank through the inlet pipe will directly enter the secondary anaerobic tank without preliminary fermentation. In this process, the water pipe may also be blocked. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an optimized structure for the water passage hole of a septic tank, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an optimized structure for the water passage of a septic tank, comprising a shell, with an inlet and an outlet at both ends of the shell, and a partition inside the shell dividing its internal space into a primary anaerobic chamber, a secondary anaerobic chamber, and a tertiary clarification chamber, with a cleaning hole at the top of each reaction chamber, and water passage holes provided on the partition, with a downward-facing shielding cover outside the water passage holes, the shielding cover being located on the side of the partition near the inlet.
[0005] As a preferred technical solution of this utility model, the shell and partition are made of one of PE, PP or PVC.
[0006] As a preferred embodiment of this utility model, the cross-section of the shield is semi-circular or rectangular.
[0007] As a preferred embodiment of this utility model, the distance between the lower end of the shield and the lower edge of the water passage hole is not less than 5cm.
[0008] Compared with the prior art, the beneficial effects of this utility model are: the optimized structure of the septic tank water passage hole avoids the problem of water passage pipe deflection by eliminating the water passage pipe and only retaining the water passage hole. A shield with an opening at the bottom is set outside the water passage hole, which can not only strengthen the structural strength of the partition at the water passage hole position, but also prevent solidified objects newly entering the septic tank from directly passing through the water passage hole and causing blockage when the liquid level reaches the height of the water passage hole, thus achieving excellent anti-blockage effect. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the water passage structure of this utility model.
[0011] In the diagram: 1. Shell, 2. Outlet, 3. Inlet, 4. Cleaning hole, 5. Baffle, 6. Water passage hole, 7. Shield. Detailed Implementation
[0012] 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.
[0013] Please see Figure 1-2 This utility model provides a technical solution: an optimized structure for the water passage holes of a septic tank, including a shell 1. The shell 1 has an inlet 3 and an outlet 2 at both ends. A partition 5 inside the shell 1 divides its internal space into a primary anaerobic chamber, a secondary anaerobic chamber, and a tertiary clarification chamber. Each reaction chamber has a cleaning hole 4 at its upper part. The shell 1 and the partition 5 are made of PE, PP, or PVC. PE, PP, and PVC have the advantages of easy molding and corrosion resistance, effectively preventing leakage risks in the shell 1. The partition 5 has water passage holes 6, avoiding the problem of water pipes being misaligned in traditional structures. To address the issue of relocation, a downward-facing shield 7 is installed outside the water passage 6. The shield 7 has a semi-circular or rectangular cross-section, which effectively strengthens the structural strength of the partition 5 at the location of the water passage 6. The shield 7 is located on the side of the partition 5 near the water inlet 3. The distance between the lower end of the shield 7 and the lower edge of the water passage 6 is not less than 5cm. When the liquid level in the reaction tank reaches the height of the water passage 6, the space between the lower end of the shield 7 and the lower edge of the water passage 6 is filled with the upper clear liquid, which acts as a barrier to newly solidified objects entering through the water inlet 3, preventing them from directly entering the next reaction tank or clogging the water passage 6.
[0014] 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. An optimized structure for the water passage of a septic tank, comprising a shell (1), with an inlet (3) and an outlet (2) at both ends of the shell (1), and a partition (5) inside the shell (1) dividing its internal space into a primary anaerobic chamber, a secondary anaerobic chamber, and a tertiary clarification chamber, wherein each reaction chamber has a cleaning hole (4) at its top, characterized in that: The partition (5) is provided with a water passage hole (6), and a shield (7) with the opening facing downward is provided outside the water passage hole (6). The shield (7) is located on the side of the partition (5) close to the water inlet (3).
2. The optimized structure of the septic tank water passage according to claim 1, characterized in that: The shell (1) and partition (5) are made of one of PE, PP or PVC.
3. The optimized structure of the septic tank water passage according to claim 1, characterized in that: The distance between the lower end of the shield (7) and the lower edge of the water passage (6) is not less than 5cm.
4. The optimized structure of the septic tank water passage according to claim 1, characterized in that: The cross-section of the shield (7) is semi-circular or rectangular.