Prefabricated reinforced concrete septic tank
By introducing positioning mechanisms and sealing devices into precast reinforced concrete septic tanks, the problem of loose connections between precast blocks is solved, achieving precise positioning and sealing connections, preventing sewage leakage, and improving installation accuracy and sealing performance.
Patent Information
- Application Number
- CN202520255861.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing modular precast concrete septic tanks are difficult to position precisely, resulting in loose connections and easy leakage of sewage at the joints.
The device employs positioning mechanism, sealing groove, pressure strip, limiting mechanism, sealing strip, insertion tube and driving mechanism to achieve precise positioning and sealed connection of precast blocks. The insertion tube is sealed to the internal pipe to prevent sewage leakage.
It improves installation accuracy, ensures a tight connection between precast blocks, prevents sewage leakage, and is simple and effective to install.
Smart Images
Figure CN223893514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of septic tanks, and more particularly to precast reinforced concrete septic tanks. Background Technology
[0002] Precast reinforced concrete septic tanks are environmentally friendly facilities used for treating domestic sewage, manufactured using prefabrication technology. They use steel reinforcement as a framework and concrete as the main material, with various specifications and shapes of tank components, such as tank walls, bottoms, and covers, prefabricated in a factory. These components are then transported to the construction site and assembled using modular construction methods.
[0003] Existing modular precast concrete septic tanks are difficult to position precisely during installation, resulting in loose connections and easy leakage of sewage at the joints. Therefore, a precast reinforced concrete septic tank is proposed to address these issues. Utility Model Content
[0004] One technical problem to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a precast reinforced concrete septic tank, which solves the problem that it is difficult to accurately position the septic tank in a modular precast concrete septic tank, resulting in loose connections and easy leakage of sewage at the joints of the precast concrete.
[0006] Two technical solutions
[0007] To achieve the above objectives, this utility model provides the following technical solution: a precast reinforced concrete septic tank, comprising a base, a plurality of first precast blocks slidably connected to the top surface of the base, each first precast block having a sealing groove on its top surface, a sealing strip installed in each sealing groove, a second precast block being engaged on the top surface of each first precast block, a positioning mechanism being provided on the bottom surface of each second precast block, and a plurality of limiting blocks symmetrically installed on the bottom surface of each second precast block, with each limiting block being engaged in a corresponding position on a first precast block. Inside, each of the limiting blocks is provided with a limiting mechanism, and each of the second precast blocks has a pressure strip fixedly installed on its bottom surface. Each pressure strip is locked in a sealing groove corresponding to its position. Each of the first precast blocks has an internal tube and an insertion tube installed on its two outer sides. Each internal tube has a sealing ring installed inside it, and each insertion tube is inserted into the internal tube corresponding to its position. The top surface of the base is symmetrically slidably connected to two pressure plates, and each pressure plate abuts against the outer side of the first precast block corresponding to its position. The base drives the two pressure plates to slide towards each other through a driving mechanism.
[0008] Preferably, each positioning mechanism includes multiple positioning posts, and the multiple positioning posts are symmetrically installed on the bottom surface of the second precast block. The top surface of each first precast block is symmetrically provided with multiple positioning slots, and each positioning post is engaged in the corresponding positioning slot.
[0009] Preferably, each of the limiting mechanisms includes two circular grooves, which are symmetrically opened within the limiting block. A push rod is slidably connected within each circular groove. A wedge block is fixedly installed at one end of each push rod. A spring is installed between the other end of each push rod and the side wall of the corresponding circular groove. Multiple limiting grooves are symmetrically opened on the top surface of each first precast block. Two wedge grooves are symmetrically opened within each first precast block. Each wedge groove is connected to the corresponding limiting groove, and each wedge block is engaged within the corresponding wedge groove.
[0010] Preferably, the driving mechanism includes two first slide grooves, which are symmetrically opened on the top surface of the base, and each pressure plate is slidably connected to the first slide groove. A double-ended screw is rotatably connected between the two side walls of one of the first slide grooves, and the two pressure plates are symmetrically threaded onto the double-ended screw. One end of the double-ended screw passes through the base and is equipped with a knob.
[0011] Preferably, the top surface of the base is symmetrically provided with a plurality of second sliding grooves, and the bottom surface of each first precast block is symmetrically provided with a plurality of sliders, and each slider is slidably connected in the corresponding second sliding groove.
[0012] Preferably, the inner diameter of each of the built-in tubes is equal to the outer diameter of the insertion tube.
[0013] Three beneficial effects
[0014] Compared with the prior art, the present invention provides a technical solution with the following beneficial effects:
[0015] 1. This utility model, by setting up a positioning mechanism, sealing groove, pressure strip, limiting mechanism, sealing strip, sealing groove, insert tube, and internal tube, achieves improved installation accuracy between the first and second precast blocks through the positioning mechanism, convenient positioning of the two through the limiting mechanism, and sealing connection between the first and second precast blocks through the pressure strip squeezing the sealing strip. Furthermore, the insert tube is inserted into the internal tube, and the driving mechanism pushes two pressure plates to bring each first precast block closer to each other, thereby squeezing the sealing ring through the insert tube, achieving a sealed connection between the insert tube and the internal tube, and achieving a sealed connection between each first precast block. The device is simple to install, improves installation accuracy, and prevents sewage leakage from the connection.
[0016] 2. By setting up a slider, a second slide groove and other devices, this utility model enables the slider and the second slide groove to provide guidance and limit for each first precast block, which facilitates the improvement of the alignment accuracy of each first precast block. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of the prefabricated reinforced concrete septic tank proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the drive mechanism structure of the prefabricated reinforced concrete septic tank proposed in this utility model.
[0019] Figure 3 A schematic diagram of the sealing groove of the prefabricated reinforced concrete septic tank proposed in this utility model.
[0020] Figure 4 This is a schematic diagram of the installation structure of the positioning column and limiting block of the prefabricated reinforced concrete septic tank proposed in this utility model.
[0021] Figure 5 This is a schematic diagram of the sealing ring installation structure of the prefabricated reinforced concrete septic tank proposed in this utility model.
[0022] Figure 6 This is a schematic diagram of the limiting mechanism structure of the prefabricated reinforced concrete septic tank proposed in this utility model.
[0023] In the diagram: 1. Base; 2. First precast block; 3. Second precast block; 4. Pressure plate; 5. First slide groove; 6. Double-ended screw; 7. Knob; 8. Second slide groove; 9. Slider; 10. Positioning groove; 11. Sealing groove; 12. Sealing strip; 13. Internal tube; 14. Insert tube; 15. Limiting groove; 16. Positioning post; 17. Pressure strip; 18. Limiting block; 19. Sealing ring; 20. Wedge groove; 21. Circular groove; 22. Spring; 23. Push rod; 24. Wedge block. Detailed Implementation
[0024] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0025] This utility model provides a technical solution:
[0026] Reference Figure 1-6A precast reinforced concrete septic tank includes a base 1. Multiple first precast blocks 2 are slidably connected to the top surface of the base 1. Each first precast block 2 has a sealing groove 11 on its top surface. Each sealing groove 11 is equipped with a sealing strip 12. Each first precast block 2 has a second precast block 3 clamped on its top surface. Each second precast block 3 has a positioning mechanism on its bottom surface. Multiple limiting blocks 18 are symmetrically installed on the bottom surface of each second precast block 3. Each limiting block 18 is clamped in the corresponding first precast block 2. Each limiting block 18 is equipped with a limiting mechanism. Each second precast block 3 has a pressure strip 17 fixedly installed on its bottom surface. Each pressure strip 17 is clamped in the corresponding sealing groove 11.
[0027] The second precast block 3 uses its own weight to drive the pressure strip 17 to abut against the sealing strip 12 in the sealing groove 11, thereby achieving a seal between the second precast block 3 and the first precast block 2, thus preventing sewage from leaking from the connection.
[0028] Each first precast block 2 has an internal tube 13 and an insertion tube 14 installed on its two outer sides. Each internal tube 13 has a sealing ring 19 installed inside it, and each insertion tube 14 is inserted into the corresponding internal tube 13. The top surface of the base 1 is symmetrically slidably connected to two pressure plates 4, and each pressure plate 4 abuts against the outer side of the corresponding first precast block 2. The base 1 drives the two pressure plates 4 to slide towards each other through a drive mechanism. Under the action of the pressure plates 4, the connection between each first precast block 2 can be made tighter, and the insertion tube 14 can be inserted into the internal tube 13. The insertion tube 14 abuts against the sealing ring 19, causing the sealing ring 19 to deform, thereby preventing sewage from leaking from the connection.
[0029] Furthermore, each positioning mechanism includes multiple positioning posts 16, and the multiple positioning posts 16 are symmetrically installed on the bottom surface of the second precast block 3. The top surface of each first precast block 2 is symmetrically provided with multiple positioning grooves 10, and each positioning post 16 is engaged in the corresponding positioning groove 10. The positioning posts 16 and positioning grooves 10 facilitate the alignment accuracy between the first precast block 2 and the second precast block 3.
[0030] Furthermore, each limiting mechanism includes two circular grooves 21, which are symmetrically opened within the limiting block 18. A push rod 23 is slidably connected within each circular groove 21. A wedge block 24 is fixedly installed at one end of each push rod 23. A spring 22 is installed between the other end of each push rod 23 and the side wall of the corresponding circular groove 21. Multiple limiting grooves 15 are symmetrically opened on the top surface of each first precast block 2. Two wedge grooves 20 are symmetrically opened within each first precast block 2. Each wedge groove 20 is connected to the corresponding limiting groove 15. Each wedge block 24 is locked within the corresponding wedge groove 20. It should be noted that each wedge block 24 can be hidden within the circular groove 21.
[0031] Furthermore, the drive mechanism includes two first slide grooves 5, which are symmetrically opened on the top surface of the base 1. Each pressure plate 4 is slidably connected to the first slide groove 5. A double-ended screw 6 is rotatably connected between the two side walls of one of the first slide grooves 5. The two pressure plates 4 are symmetrically threaded onto the double-ended screw 6. One end of the double-ended screw 6 passes through the base 1 and is fitted with a knob 7. The double-ended screw 6 has two sections of threads with opposite directions, and the connection point of the two sections of threads is located at the center of the double-ended screw 6, thereby driving the two pressure plates 4 to slide towards each other.
[0032] Furthermore, the top surface of the base 1 is symmetrically provided with multiple second sliding grooves 8, and the bottom surface of each first precast block 2 is symmetrically equipped with multiple sliders 9, and each slider 9 is slidably connected in the corresponding second sliding groove 8. The sliders 9 and the second sliding grooves 8 can provide guidance and limit for each first precast block 2, which can improve the alignment accuracy of each first precast block 2.
[0033] Furthermore, the inner diameter of each internal tube 13 is equal to the outer diameter of the insertion tube 14.
[0034] In practical use, the working principle of this utility model is as follows:
[0035] In this utility model, when the device is used, the operator first fixes the base 1 in the designated position, then places multiple first prefabricated blocks 2 on the top surface of the base 1 through the second sliding groove 8 and the slider 9 in sequence, so as to realize the sliding connection between the first prefabricated blocks 2 and the base 1. Then, the knob 7 can be manually turned to drive the double-headed screw 6 to rotate, so that the two pressure plates 4 slide towards each other, and each pressure plate 4 presses the outer side of the corresponding first prefabricated block 2, thereby driving multiple first prefabricated blocks 2 to be tightly connected. When multiple first prefabricated blocks 2 slide, the insertion tube 14 is inserted into the corresponding built-in tube 13, and the end face of the insertion tube 14 presses the sealing ring 19, causing the sealing ring 19 to deform, thereby realizing the sealed connection between the built-in tube 13 and the insertion tube 14, preventing sewage leakage. Moreover, the thread has self-locking properties, which can ensure the continuous sealing between the built-in tube 13 and the insertion tube 14.
[0036] Next, with the cooperation of multiple positioning grooves 10 and positioning posts 16, the second precast block 3 is locked inside the first precast block 2. During the locking process, the side wall of the limiting groove 15 squeezes the wedge block 24 and compresses the spring 22, so that the wedge block 24 is hidden in the circular groove 21. Until the wedge block 24 moves to the position of the wedge groove 20, the spring 22 is released elastically, causing the wedge block 24 to be locked in the spring 22, thereby limiting the second precast block 3 and making the first precast block 2 and the second precast block 3 tightly connected. At this time, the pressure strip 17 is locked in the sealing groove 11 and squeezes the sealing strip 12 to deform, thereby sealing the connection between the first precast block 2 and the second precast block 3 and preventing sewage leakage.
[0037] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.
Claims
1. A precast reinforced concrete septic tank, comprising a base (1), characterized in that, The top surface of the base (1) is slidably connected to a plurality of first precast blocks (2). Each first precast block (2) has a sealing groove (11) on its top surface, and a sealing strip (12) is installed in each sealing groove (11). A second precast block (3) is clamped on the top surface of each first precast block (2). A positioning mechanism is provided on the bottom surface of each second precast block (3). A plurality of limiting blocks (18) are symmetrically installed on the bottom surface of each second precast block (3), and each limiting block (18) is clamped in the corresponding first precast block (2). A limiting mechanism is provided in each limiting block (18). Each block (3) has a pressure strip (17) fixedly installed on its bottom surface, and each pressure strip (17) is locked in the corresponding sealing groove (11). Each of the two outer sides of the first precast block (2) is equipped with an internal tube (13) and an insertion tube (14). Each internal tube (13) is equipped with a sealing ring (19), and each insertion tube (14) is inserted into the internal tube (13) corresponding to its position. The top surface of the base (1) is symmetrically slidably connected with two pressure plates (4), and each pressure plate (4) abuts against the outer side of the corresponding first precast block (2). The base (1) drives the two pressure plates (4) to slide towards each other through a driving mechanism.
2. The precast reinforced concrete septic tank according to claim 1, characterized in that, Each of the positioning mechanisms includes multiple positioning posts (16), and the multiple positioning posts (16) are symmetrically installed on the bottom surface of the second precast block (3). The top surface of each first precast block (2) is symmetrically provided with multiple positioning slots (10), and each positioning post (16) is locked in the corresponding positioning slot (10).
3. The precast reinforced concrete septic tank according to claim 2, characterized in that, Each of the limiting mechanisms includes two circular grooves (21), and the two circular grooves (21) are symmetrically opened in the limiting block (18). Each circular groove (21) is slidably connected with a push rod (23). One end of each push rod (23) is fixedly installed with a wedge block (24). The other end of each push rod (23) is connected with a spring (22) between it and the side wall of the circular groove (21) corresponding to the position. The top surface of each first precast block (2) is symmetrically provided with multiple limiting grooves (15). Each first precast block (2) is symmetrically provided with two wedge grooves (20), and each wedge groove (20) is connected to the limiting groove (15) corresponding to the position. Each wedge block (24) is locked in the wedge groove (20) corresponding to the position.
4. The precast reinforced concrete septic tank according to claim 3, characterized in that, The driving mechanism includes two first slide grooves (5), which are symmetrically opened on the top surface of the base (1). Each pressure plate (4) is slidably connected to the first slide groove (5). A double-headed screw (6) is rotatably connected between the two side walls of one of the first slide grooves (5). The two pressure plates (4) are symmetrically threaded onto the double-headed screw (6). One end of the double-headed screw (6) passes through the base (1) and is equipped with a knob (7).
5. The precast reinforced concrete septic tank according to claim 4, characterized in that, The top surface of the base (1) is symmetrically provided with multiple second sliding grooves (8), and the bottom surface of each first precast block (2) is symmetrically provided with multiple sliders (9), and each slider (9) is slidably connected in the corresponding second sliding groove (8).
6. The precast reinforced concrete septic tank according to claim 1, characterized in that, The inner diameter of each of the built-in tubes (13) is equal to the outer diameter of the insertion tube (14).