V-shaped sand filter for sewage treatment
By introducing positioning and assembly components and adjustment and sealing components into the V-shaped sand filter, the problems of inconvenient filter plate disassembly and assembly and insufficient modular design are solved, realizing convenient installation and efficient cleaning of the filter plates and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING THREE GORGES WATER CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-08-04
AI Technical Summary
Existing V-type sand filters are inconvenient to disassemble and assemble during use, which affects the water intake effect and operating efficiency. Furthermore, the lack of modular design means that the entire filter needs to be replaced when the filter is damaged, increasing costs.
The system employs positioning and assembly components and adjustment and sealing components. Positioning blocks are locked in the slots to ensure precise and stable installation of the filter plates. The modular design facilitates the replacement of damaged filter plates. The adjustment and sealing components use sliders to push the sealing plate to adjust the water inlet and collect impurities, improving cleaning convenience.
It enables convenient disassembly and precise installation of filter plates, reduces maintenance costs, improves the convenience of inlet water adjustment and impurity cleaning, and enhances the performance of the equipment.
Smart Images

Figure CN224585412U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a V-shaped sand filter for wastewater treatment. Background Technology
[0002] V-type filters are water treatment structures used in water plants, referring to rapid filters that maintain a constant water level. The inlet channels on both sides of the filter are V-shaped. An ultrasonic automatic water level control device inside the filter adjusts the outlet clear water valve, automatically adjusting its opening degree according to the water level to maintain a constant water level. Typically, V-type filters use a single layer of sand filter media with a particle size of 0.95-1.35mm, a uniformity coefficient of 1.2-1.6, and a filter layer thickness of 1.0-1.5m.
[0003] Existing V-shaped sand filters used for wastewater treatment are inconvenient to disassemble and assemble during use, resulting in poor water intake, affecting the efficiency of the filter and the wastewater filtration effect. Furthermore, the lack of a modular design means that when some V-shaped filter plates are damaged, the entire filter needs to be replaced, leading to high filter plate usage costs. Utility Model Content
[0004] To address the problems mentioned in the background section, this invention provides a V-shaped sand filter for wastewater treatment, characterized by convenient assembly and disassembly and good performance.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a V-shaped sand filter for wastewater treatment, comprising a filter body, a drain valve at the bottom of the filter body, an inlet weir at the upper side of one side of the filter body, V-shaped filter plates symmetrically installed at the upper interior of the filter body, bottom filter plates symmetrically installed at the bottom interior of the filter body, filter media at the upper end of the bottom filter plates, a sludge discharge trough in the middle of the interior of the filter body, positioning and assembly components corresponding to the V-shaped filter plates on the inner wall surface of the filter body, and adjustment and sealing components at the bottom of the V-shaped filter plates.
[0006] Preferably, the positioning assembly includes a water inlet, side plates, locking grooves, positioning teeth, bearings, guide plates, fastening bolts, and a splicing device. Guide plates are symmetrically fixed to the inner wall surface of the filter body. Fastening bolts are installed inside the guide plates, and a bearing is installed at one end of each fastening bolt. A positioning tooth is fixed to one side of each bearing. Side plates are fixed to both sides of the V-shaped filter plate corresponding to the positioning teeth. A water inlet is opened in the middle of the interior of each side plate, and a locking groove is opened on one side of the interior of each side plate. A splicing device is installed at the upper end of each side plate.
[0007] Preferably, a limit baffle is provided on one side of the tooth groove corresponding to the positioning tooth block.
[0008] Preferably, the guide plate has a storage groove inside corresponding to the positioning tooth block.
[0009] Preferably, the splicing device includes a fixing block, a mounting block, a positioning bolt, a clamping block, and a plug hole. The upper end of the side plate is provided with a mounting block, a fixing block is fixed on one side of the mounting block, a positioning bolt is connected to the other side of the mounting block, and a clamping block is fixed on the surface of the positioning bolt.
[0010] Preferably, the side plate has a through-hole, and the surface of the fixing block has a positioning post corresponding to the through-hole.
[0011] Preferably, the two ends of the clamping block are set as arc-shaped surfaces, and the surface of the clamping block is provided with an anti-slip coating.
[0012] Preferably, the adjusting and sealing assembly includes a guide frame, a lead screw, a slider, and a sealing plate, wherein the guide frame is fixed at the bottom center of the V-shaped filter plate, the lead screw is provided inside the guide frame, the slider is provided on the surface of the lead screw, and the sealing plate is fixed on one side of the slider.
[0013] Preferably, the sealing plate has a receiving groove on the side away from the slider.
[0014] Preferably, the guide frame is configured as an L-shaped frame, and one end of the lead screw is equipped with an anti-slip handwheel.
[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model sets up a positioning assembly component, in which positioning teeth block is locked inside the tooth groove to limit the side plate, ensuring the convenience of positioning and installation of the side plate and V-shaped filter plate, ensuring the accuracy and stability of V-shaped filter plate installation, and allowing for convenient assembly of multiple sets of V-shaped filter plates. The modular design facilitates the replacement of damaged V-shaped filter plates in the future, reducing the maintenance cost of V-shaped filter plates.
[0016] 2. This utility model, by setting up an adjusting sealing component, uses a slider to push the sealing plate to move and seal the opening of the V-shaped filter plate, thereby achieving the effect of water inlet adjustment. Furthermore, when the V-shaped filter plate is removed for cleaning, the receiving groove inside the sealing plate receives the filtered impurities, ensuring the convenience of impurity cleaning and improving the equipment's performance. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a schematic diagram of the positioning and assembly component structure of this utility model; Figure 4 This is a schematic diagram of the splicing device structure of this utility model; Figure 5 This is a schematic diagram of the adjusting and sealing component of this utility model.
[0018] In the diagram: 1. Inlet weir; 2. Filter body; 3. Drain valve; 4. V-shaped filter plate; 5. Filter media; 6. Adjustment and sealing assembly; 61. Guide frame; 62. Screw; 63. Sliding block; 64. Sealing plate; 65. Receiving groove; 7. Positioning and assembly assembly; 71. Inlet hole; 72. Side plate; 73. Clamping groove; 74. Positioning tooth block; 75. Bearing; 76. Guide plate; 77. Fastening bolt; 78. Splicing device; 781. Fixing block; 782. Positioning column; 783. Mounting block; 784. Positioning bolt; 785. Clamping block; 786. Insertion hole; 8. Bottom filter plate; 9. Sewage discharge trough. Detailed Implementation
[0019] 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.
[0020] Example 1 Please see Figure 1-5 The present invention provides the following technical solution: a V-shaped sand filter for sewage treatment, comprising a filter body 2, a drain valve 3 at the bottom of the filter body 2, an inlet weir 1 at the upper side of one side of the filter body 2, V-shaped filter plates 4 symmetrically installed at the upper interior of the filter body 2, bottom filter plates 8 symmetrically installed at the bottom interior of the filter body 2, filter media 5 at the upper end of the bottom filter plates 8, a sewage discharge trough 9 opened in the middle of the interior of the filter body 2, a positioning assembly component 7 corresponding to the V-shaped filter plates 4 on the inner wall surface of the filter body 2, and an adjustment and sealing component 6 at the bottom of the V-shaped filter plates 4.
[0021] Specifically, the positioning assembly component 7 includes an inlet hole 71, a side plate 72, a toothed groove 73, a positioning tooth block 74, a bearing 75, a guide plate 76, fastening bolts 77, and a splicing device 78. The inner wall surface of the filter body 2 is symmetrically fixed with guide plates 76. Fastening bolts 77 are installed inside the guide plates 76. A bearing 75 is installed at one end of the fastening bolts 77. A positioning tooth block 74 is fixed on one side of the bearing 75. Side plates 72 are fixed on both sides of the V-shaped filter plate 4 corresponding to the positioning tooth blocks 74. An inlet hole 71 is opened in the middle of the inside of the side plate 72. A toothed groove 73 is opened on one side of the inside of the side plate 72. A splicing device 78 is installed at the upper end of the side plate 72.
[0022] By adopting the above technical solution, when using the filter body 2 to treat sewage, it is necessary to first install the V-shaped filter plate 4 inside the filter body 2. The side plate 72 is attached to the inner wall surface of the filter body 2 and moved upward so that the water inlet hole 71 corresponds to the water inlet of the water inlet weir 1. Then, the fastening bolt 77 is rotated to move it along the inside of the guide plate 76 and push the positioning tooth block 74 out from the inside of the guide plate 76. The positioning tooth block 74 is stuck in the inside of the tooth groove 73 to limit the side plate 72, ensuring the convenience of the side plate 72 positioning and installation, and ensuring the accuracy and stability of the V-shaped filter plate 4 installation.
[0023] Specifically, a limit baffle is provided on one side of the tooth groove 73 corresponding to the positioning tooth block 74.
[0024] By adopting the above technical solution, the accuracy of the engagement between the positioning tooth block 74 and the locking tooth groove 73 is ensured, and the wobbling of the positioning tooth block 74 is prevented.
[0025] Specifically, the guide plate 76 has a storage groove inside corresponding to the positioning tooth block 74.
[0026] By adopting the above technical solution, the stability of the movement of the positioning tooth block 74 is ensured, the docking accuracy is improved, and the offset is prevented.
[0027] Specifically, the splicing device 78 includes a fixing block 781, a mounting block 783, a positioning bolt 784, a clamping block 785, and a plug hole 786. The mounting block 783 is provided at the upper end of the side plate 72. The fixing block 781 is fixed to one side of the mounting block 783, and the positioning bolt 784 is connected to the other side of the mounting block 783. The clamping block 785 is fixed to the surface of the positioning bolt 784.
[0028] By adopting the above technical solution, when multiple sets of V-shaped filter plates 4 need to be assembled, the mounting block 783 is abutted against the upper end of the side plate 72, and the positioning post 782 on one side of the fixing block 781 is inserted into the insertion hole 786 to initially position the mounting block 783. Then, the side plates 72 of the two sets of V-shaped filter plates 4 are attached together, and the positioning bolt 784 is rotated to drive the positioning post 782 to move. The two sets of side plates 72 are clamped and fixed by the clamping block 785, which ensures the convenience of assembling multiple sets of V-shaped filter plates 4, facilitates the subsequent replacement of damaged V-shaped filter plates 4, and reduces the maintenance cost of V-shaped filter plates 4.
[0029] Specifically, the side plate 72 has a through-hole 786, and the surface of the fixing block 781 is provided with a positioning post 782 corresponding to the through-hole 786.
[0030] By adopting the above technical solution, the accuracy and stability of the installation of the fixing block 781 are ensured, and the splicing strength of the side plate 72 is improved.
[0031] Specifically, the two ends of the clamping block 785 are set as arc-shaped surfaces, and the surface of the clamping block 785 is provided with an anti-slip coating.
[0032] By adopting the above technical solution, the clamping quality of the clamping block 785 on the side plate 72 is ensured during use, thus guaranteeing the effectiveness of the equipment.
[0033] In this embodiment, when using the filter body 2 to treat sewage, it is necessary to first install the V-shaped filter plate 4 inside the filter body 2. The side plate 72 is attached to the inner wall surface of the filter body 2 and moved upward so that the water inlet 71 corresponds to the water inlet of the water inlet weir 1. Then, the fastening bolt 77 is rotated to move it along the inside of the guide plate 76 and push the positioning tooth block 74 out from the inside of the guide plate 76. The positioning tooth block 74 is locked inside the tooth groove 73 to limit the side plate 72, ensuring the convenience of the side plate 72 positioning and installation, and ensuring the accuracy and stability of the V-shaped filter plate 4 installation. When multiple sets of V-shaped filter plates 4 need to be assembled, the mounting block 783 is abutted against the upper end of the side plate 72. At the same time, the positioning post 782 on one side of the fixing block 781 is inserted into the insertion hole 786 to initially position the mounting block 783. Then, the side plates 72 of the two sets of V-shaped filter plates 4 are attached together, and the positioning bolt 784 is rotated to move the positioning post 782. The two sets of side plates 72 are clamped and fixed by the clamping block 785, which ensures the convenience of assembling multiple sets of V-shaped filter plates 4, facilitates the replacement of damaged V-shaped filter plates 4 in the future, and reduces the maintenance cost of V-shaped filter plates 4.
[0034] Example 2 The difference between this embodiment and embodiment 1 is that, specifically, the adjusting and sealing assembly 6 includes a guide frame 61, a lead screw 62, a slider 63, and a sealing plate 64. The guide frame 61 is fixed in the middle of the bottom end of the V-shaped filter plate 4. The lead screw 62 is provided inside the guide frame 61. The slider 63 is provided on the surface of the lead screw 62. The sealing plate 64 is fixed on one side of the slider 63.
[0035] By adopting the above technical solution, during sewage filtration, the opening size of the V-shaped filter plate 4 can be adjusted according to needs. Rotating the screw 62 drives the slider 63 to slide along the surface of the guide frame 61. The slider 63 pushes the sealing plate 64 to move and seal the opening of the V-shaped filter plate 4, thereby achieving the effect of water inlet adjustment. When it is necessary to remove the V-shaped filter plate 4 for cleaning, the screw 62 can be rotated to drive the sealing plate 64 to abut against the inner wall surface of the filter tank body 2. Then, when the V-shaped filter plate 4 is removed, the screw 62 is rotated again to push the sealing plate 64 out of the bottom end of the V-shaped filter plate 4. The filtered impurities are received through the receiving groove 65 inside the sealing plate 64, ensuring the convenience of impurity cleaning and improving the equipment's performance.
[0036] Specifically, a receiving groove 65 is provided inside the side of the sealing plate 64 away from the slider 63.
[0037] By adopting the above technical solution, the filtered impurities are received by the receiving groove 65 inside the sealing plate 64, ensuring the convenience of impurity cleaning.
[0038] Specifically, the guide frame 61 is set as an L-shaped frame, and one end of the lead screw 62 is equipped with an anti-slip handwheel.
[0039] By adopting the above technical solutions, the convenience and stability of the lead screw 62 are ensured, and the adjustment efficiency is improved.
[0040] In this embodiment, during wastewater filtration, the opening size of the V-shaped filter plate 4 can be adjusted as needed. Rotating the lead screw 62 drives the slider 63 to slide along the surface of the guide frame 61. The slider 63 pushes the sealing plate 64 to move and seal the opening of the V-shaped filter plate 4, thereby achieving the effect of water inlet adjustment. When it is necessary to remove the V-shaped filter plate 4 for cleaning, the lead screw 62 can be rotated to drive the sealing plate 64 to abut against the inner wall surface of the filter tank body 2. Then, when the V-shaped filter plate 4 is removed, the lead screw 62 is rotated again to push the sealing plate 64 out of the bottom end of the V-shaped filter plate 4. The filtered impurities are received through the receiving groove 65 inside the sealing plate 64, ensuring the convenience of impurity cleaning and improving the equipment's performance.
[0041] The working principle and usage process of this utility model: When using this utility model to treat sewage using the filter body 2, it is necessary to first install the V-shaped filter plate 4 inside the filter body 2. The side plate 72 is attached to the inner wall surface of the filter body 2 and moved upward so that the water inlet hole 71 corresponds to the water inlet of the water inlet weir 1. Then, the fastening bolt 77 is rotated to move it along the inside of the guide plate 76 and push the positioning tooth block 74 out from the inside of the guide plate 76. The positioning tooth block 74 is stuck in the inside of the tooth groove 73 to limit the side plate 72, ensuring the convenience of the side plate 72 positioning and installation, and ensuring the accuracy and stability of the V-shaped filter plate 4 installation. When multiple sets of V-shaped filter plates 4 need to be assembled, the mounting block 783 is abutted against the upper end of the side plate 72, and the positioning post 782 on one side of the fixing block 781 is inserted into the insertion hole 786 to initially position the mounting block 783. Then, the side plates 72 of the two sets of V-shaped filter plates 4 are attached together, and the positioning bolt 784 is rotated to drive the positioning post 782 to move. The two sets of side plates 72 are clamped and fixed by the clamping block 785, which ensures the convenience of assembling multiple sets of V-shaped filter plates 4, facilitates the replacement of damaged V-shaped filter plates 4 in the future, and reduces the maintenance cost of V-shaped filter plates 4. During wastewater filtration, the opening size of the V-shaped filter plate 4 can be adjusted according to requirements. Rotating the screw 62 drives the slider 63 to slide along the surface of the guide frame 61. The slider 63 pushes the sealing plate 64 to move and seal the opening of the V-shaped filter plate 4, thereby achieving the effect of water inlet adjustment. When it is necessary to remove the V-shaped filter plate 4 for cleaning, the screw 62 can be rotated to drive the sealing plate 64 to abut against the inner wall surface of the filter tank body 2. Then, when the V-shaped filter plate 4 is lowered and removed, the screw 62 is rotated again to push the sealing plate 64 out of the bottom end of the V-shaped filter plate 4. The filtered impurities are received through the receiving groove 65 inside the sealing plate 64, ensuring the convenience of impurity cleaning and improving the equipment's performance.
[0042] 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 V-shaped sand filter for wastewater treatment, comprising a filter body (2), wherein a drain valve (3) is provided at the bottom end of the filter body (2), an inlet weir (1) is provided at the upper end of one side of the filter body (2), V-shaped filter plates (4) are symmetrically installed at the upper end of the interior of the filter body (2), bottom filter plates (8) are symmetrically arranged at the bottom end of the interior of the filter body (2), filter media (5) is provided at the upper end of the bottom filter plates (8), and a sewage discharge trough (9) is provided in the middle of the interior of the filter body (2), characterized in that: The inner wall surface of the filter body (2) is provided with a positioning assembly component (7) corresponding to the V-shaped filter plate (4), and an adjustment and sealing component (6) is provided at the bottom of the V-shaped filter plate (4).
2. A V-shaped sand filter for sewage treatment according to claim 1, characterized in that: The positioning assembly component (7) includes an inlet hole (71), a side plate (72), a toothed groove (73), a positioning tooth block (74), a bearing (75), a guide plate (76), a fastening bolt (77), and a splicing device (78). The inner wall surface of the filter body (2) is symmetrically fixed with a guide plate (76). The inside of the guide plate (76) is provided with a fastening bolt (77). One end of the fastening bolt (77) is provided with a bearing (75). One side of the bearing (75) is fixed with a positioning tooth block (74). The two sides of the V-shaped filter plate (4) are fixed with side plates (72) corresponding to the positioning tooth blocks (74). The inside of the side plate (72) is provided with an inlet hole (71). The inside of the side plate (72) is provided with a toothed groove (73). The upper end of the side plate (72) is provided with a splicing device (78).
3. A V-shaped sand filter for wastewater treatment according to claim 2, characterized in that: A limiting baffle is provided on one side of the tooth groove (73) corresponding to the positioning tooth block (74).
4. The V-shaped sand filter for sewage treatment according to claim 2, characterized in that: The guide plate (76) has a storage groove inside the corresponding positioning tooth block (74).
5. The V-shaped sand filter for sewage treatment according to claim 2, characterized in that: The splicing device (78) includes a fixing block (781), a mounting block (783), a positioning bolt (784), a clamping block (785), and a plug hole (786). The upper end of the side plate (72) is provided with a mounting block (783). A fixing block (781) is fixed on one side of the mounting block (783), and a positioning bolt (784) is connected to the other side of the mounting block (783). A clamping block (785) is fixed on the surface of the positioning bolt (784).
6. A V-shaped sand filter for wastewater treatment according to claim 5, characterized in that: The side plate (72) has a through-hole (786) inside, and the surface of the fixing block (781) is provided with a positioning post (782) corresponding to the through-hole (786).
7. A V-shaped sand filter for sewage treatment according to claim 5, characterized in that: The clamping block (785) has arc-shaped surfaces at both ends, and the surface of the clamping block (785) is provided with an anti-slip coating.
8. The V-shaped sand filter for sewage treatment according to claim 1, characterized in that: The adjusting and blocking assembly (6) includes a guide frame (61), a lead screw (62), a slider (63), and a blocking plate (64). The guide frame (61) is fixed at the bottom center of the V-shaped filter plate (4). The lead screw (62) is installed inside the guide frame (61). The slider (63) is installed on the surface of the lead screw (62). The blocking plate (64) is fixed on one side of the slider (63).
9. A V-shaped sand filter for wastewater treatment according to claim 8, characterized in that: The sealing plate (64) has a receiving groove (65) on the side away from the slider (63).
10. A V-shaped sand filter for sewage treatment according to claim 8, characterized in that: The guide frame (61) is configured as an L-shaped frame, and one end of the lead screw (62) is equipped with an anti-slip handwheel.