Anti-blocking land sewage pump
By introducing an adjustable inlet gear ring and filter plate assembly, along with a cutting blade-based crushing and filtering structure, the clogging problem of existing sewage pumps has been solved, achieving a flexible anti-clogging effect and efficient sewage discharge that can adapt to different scenarios.
Patent Information
- Application Number
- CN202520605263.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The inlet of the existing sewage pump is not easy to adjust flexibly, and large pieces of debris after crushing are difficult to filter out, resulting in poor anti-clogging performance.
An anti-clogging component was designed, including a rotatable toothed ring and a filter plate. By adjusting the size of the inlet, the filter ring and the cutter are used to break down and filter impurities, preventing impurities from accumulating and clogging.
It enables flexible adjustment of the liquid inlet and effective crushing and filtration of impurities, avoiding clogging of the sewage pump, improving sewage discharge efficiency and equipment maintenance convenience.
Smart Images

Figure CN223794372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewage pump technology, specifically to an anti-clogging land sewage pump. Background Technology
[0002] Land-based sewage pumps are a type of pump specifically designed for sewage discharge in terrestrial environments. They are typically installed on the ground and used to discharge sewage, wastewater, and media containing solids and long fibers. Depending on their structure and application, land-based sewage pumps can be classified into various types, such as vertical sewage pumps, self-priming sewage pumps, and shear pumps.
[0003] Existing sewage pumps, such as the base-mounted and vertical sewage pump disclosed in publication number CN222334070U, have the advantage of breaking down large media into smaller particles through a crushing component to prevent clogging. However, the inlet formed between the bottom partition columns of this sewage pump is not easy to adjust in a flexible manner according to the usage scenario, and the large debris after crushing is not easy to filter out, resulting in poor anti-clogging performance. Therefore, we propose an anti-clogging land sewage pump. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A clog-resistant land-based sewage pump includes: a sewage pump body and an anti-clogging component; the sewage pump body includes an impeller installed at its inner end; the anti-clogging component includes a bottom mounting base movably installed at the bottom of the sewage pump body, an inlet port arranged on the bottom mounting base, a concave ring opened in the bottom mounting base, a toothed ring movably installed in the concave ring, a filter plate fixedly installed at the upper end of the toothed ring, a fixed shaft fixedly installed at the bottom of the impeller, an upper cutting blade and a lower cutting blade movably installed on the upper and lower sides of the fixed shaft respectively, and a filter ring fixedly installed at the center of the bottom of the sewage pump body.
[0007] Preferably, movable sleeves are movably installed on both sides of the concave ring, and a locking block is fixedly installed on the outer end of each movable sleeve, with the locking block and the gear ring being engaged.
[0008] Preferably, the bottom mounting base is provided with first threaded holes on both sides, and first screws are movably installed in the first threaded holes.
[0009] Preferably, the movable sleeve also has a first mounting hole, and the first mounting hole is located at the outer end of the first screw.
[0010] Preferably, the fixed shaft is provided with second threaded holes on both the upper and lower sides, and the upper and lower cutting blades are provided with second mounting holes at their center. Second screws are movably installed in both the second mounting holes and the second threaded holes.
[0011] Preferably, the bottom of the sewage pump body and the top of the bottom mounting base are respectively provided with a third threaded hole and a third mounting hole, and a third screw is movably installed in both the third threaded hole and the third mounting hole.
[0012] Preferably, the length of the upper cutting blade is greater than the length of the lower cutting blade.
[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0014] In this invention, the multiple inlets on the bottom mounting base of the sewage pump body can be adjusted by rotating the toothed ring at the inner end of the mounting base according to the usage scenario requirements. This adjustment is achieved by overlapping the multiple filter plates at the upper end of the toothed ring with the inlets, thus flexibly adjusting the size of the inlets to suit the usage scenario requirements. This prevents large debris from being sucked into the mounting base and accumulating, causing blockage of the sewage pump body. At the same time, the filter ring installed at the bottom of the sewage pump body, as well as the upper and lower cutting blades installed at the upper and lower ends of the impeller bottom fixed shaft, can also crush large debris sucked into the mounting base. The filter ring filters out the non-standard sizes after crushing, so that the appropriately sized debris after crushing is sucked into the impeller, avoiding the problem of large debris being directly sucked into the impeller without being crushed and causing blockage. Attached Figure Description
[0015] Figure 1 This is an overall structural diagram of the present invention;
[0016] Figure 2 This is a disassembly diagram of the base mounting bracket of this utility model;
[0017] Figure 3 This is another perspective of the disassembly diagram of the base mounting bracket of this utility model;
[0018] Figure 4 This is a disassembly diagram of the internal gear ring of the bottom mounting base of this utility model;
[0019] Figure 5 This is a structural diagram of the movable sleeve of this utility model;
[0020] Figure 6 This is a partial side sectional view of the sewage pump body of this utility model.
[0021] Figure label:
[0022] 100. Sewage pump body; 101. Impeller;
[0023] 200. Anti-clogging component; 201. Bottom mounting base; 202. Liquid inlet; 203. Recessed ring; 204. Gear ring; 205. Filter plate; 206. Fixed shaft; 207. Upper cutting blade; 208. Lower cutting blade; 209. Filter ring; 210. Movable sleeve; 211. Locking block; 212. First threaded hole; 213. First screw; 214. First mounting hole; 215. Second threaded hole; 216. Second mounting hole; 217. Second screw; 218. Third threaded hole; 219. Third mounting hole; 220. Third screw. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0025] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an anti-clogging land sewage pump. Example 1
[0026] Combination Figure 1-6As shown, this utility model provides an anti-clogging land sewage pump, including: a sewage pump body 100 and an anti-clogging component 200; the sewage pump body 100 includes an impeller 101 installed at its inner end; the anti-clogging component 200 includes a bottom mounting base 201 movably installed at the bottom of the sewage pump body 100, an inlet 202 arranged on the bottom mounting base 201, a concave ring 203 opened in the bottom mounting base 201, a gear ring 204 movably installed in the concave ring 203, a filter plate 205 fixedly installed at the upper end of the gear ring 204, a fixed shaft 206 fixedly installed at the bottom of the impeller 101, an upper cutting blade 207 and a lower cutting blade 208 movably installed on the upper and lower sides of the fixed shaft 206 respectively, and a filter ring 209 fixedly installed at the center of the bottom of the sewage pump body 100; movable sleeves 210 are also movably installed on both sides of the concave ring 203, and locking blocks 211 are fixedly installed on the outer ends of the movable sleeves 210. The 11 and the gear ring 204 are meshed. The bottom mounting base 201 is provided with first threaded holes 212 on both sides. First screws 213 are movably installed in the first threaded holes 212. The movable sleeve 210 is provided with first mounting holes 214, which are located outside the first screws 213. The fixed shaft 206 is provided with second threaded holes 215 on both the upper and lower sides. The upper cutting blade 207 and the lower cutting blade 208 are provided with second mounting holes 216 in the center. Second screws 217 are movably installed in the second mounting holes 216 and the second threaded holes 215. The bottom of the sewage pump body 100 and the top of the bottom mounting base 201 are respectively provided with third threaded holes 218 and third mounting holes 219. Third screws 220 are movably installed in the third threaded holes 218 and the third mounting holes 219. The length of the upper cutting blade 207 is greater than the length of the lower cutting blade 208.
[0027] Specifically, land-based sewage pumps are typically installed on the ground and are used to discharge sewage, wastewater, and media containing solids and long fibers. The multiple inlets 202 on the bottom mounting base 201 of the sewage pump body 100 can be adjusted according to the usage scenario by rotating the gear ring 204 at the inner end of the mounting base 201. This adjustment, through the overlap between the multiple filter plates 205 at the upper end of the gear ring 204 and the inlets 202, allows for flexible adjustment of the size of the inlets 202 to suit the usage scenario. This prevents large debris from being sucked into the mounting base 201 and accumulating, causing blockage of the sewage pump body 100. Simultaneously, the filter ring 209 installed at the bottom of the sewage pump body 100, and the upper and lower cutting blades 207 and 208 installed at the upper and lower ends of the bottom fixed shaft 206 of the impeller 101, can also break up large debris sucked into the mounting base 201. The filter ring 209 then filters out any non-compliant sizes after breakage, ensuring that the broken debris is of acceptable size. Appropriately sized debris is sucked in by the impeller 101 to avoid large pieces of debris being sucked directly into the impeller 101 without being broken, causing blockage. The upper cutting blade 207 at the bottom of the filter ring 209 also prevents debris from accumulating at the bottom of the filter ring 209, thus not easily affecting the sewage discharge efficiency. At the same time, if the upper cutting blade 207 and the lower cutting blade 208 are damaged, they can be easily disassembled and replaced by the second screw 217 connecting them to the fixed shaft 206. The movable sleeve 210 pressed by the first screws 213 on both sides of the bottom mounting base 201 mainly locks the gear ring 204 by the engagement between its outer end locking block 211 and the gear ring 204, thereby locking the upper end of the adjusted filter plate 205. The third screw 220 installed in the third threaded hole 218 and the third mounting hole 219 at the bottom of the bottom mounting base 201 and the sewage pump body 100 mainly facilitates the overall disassembly of the bottom mounting base 201, so as to carry out the inspection and cleaning of the bottom mounting base 201 after disassembly.
[0028] Working principle and usage process of this utility model:
[0029] Before using the sewage pump body 100, depending on the usage scenario, the first screws 213 inside the first threaded holes 212 on both sides of the bottom mounting base 201 can be rotated outwards, and the movable sleeve 210 pressed by the inner end of the first screws 213 can be moved outwards simultaneously. This allows the locking block 211 at the inner end of the movable sleeve 210 to disengage from the gear ring 204, thereby rotating the gear ring 204 and adjusting the overlap angle between the filter plate 205 at the upper end of the gear ring 204 and the inlet 202. This prevents large debris from being sucked in and accumulating in the bottom mounting base 201 during the use of the sewage pump body 100, causing blockage. After the angle of the gear ring 204 is adjusted, the first screws 213 on both sides can be retightened so that the movable sleeve 210 pressed by the first screws 213 can re-engage the outer end of the gear ring 204. The locking block 211 engages with the outer end of the gear ring 204 to fix the gear ring 204 and the filter plate 205 after adjustment within the bottom mounting base 201. After the size of the inlet 202 at the bottom of the sewage pump body 100 is adjusted according to the usage scenario, the sewage pump body 100 can be started for sewage discharge. During the use of the sewage pump body 100, external sewage and debris will enter the bottom mounting base 201 through the inlet 202. After being sucked into the bottom mounting base 201, they will be crushed by the upper cutting blade 207 and lower cutting blade 208 rotating at the upper and lower ends of the fixed shaft 206. The crushed debris will be filtered through the filter ring 209 and then sucked into the impeller 101 for sewage discharge treatment, thereby avoiding the problem of large debris being directly sucked into the impeller 101 and causing blockage.
[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A clog resistant land drainage pump characterized by, The utility model relates to a sewage pump body (100), anti -blocking subassembly (200) are provided. The sewage pump body (100) comprises an impeller (101) mounted at an inner end thereof. The anti-blocking subassembly (200) comprises a bottom mounting base (201) movably mounted at the bottom of the sewage pump body (100), a liquid inlet (202) arranged and formed on the bottom mounting base (201), a concave ring (203) formed in the bottom mounting base (201), a gear ring (204) movably mounted in the concave ring (203), a filter plate (205) fixedly arranged on the upper end of the gear ring (204), a fixed shaft (206) fixedly mounted at the bottom of the impeller (101), an upper cutting knife (207) and a lower cutting knife (208) movably mounted on the upper and lower sides of the fixed shaft (206), respectively, and a filter ring (209) fixedly mounted at the bottom center of the sewage pump body (100). The concave ring (203) is movably mounted with an active sleeve (210) on both sides thereof, and the active sleeve (210) is fixedly mounted with a clamping block (211) on the outer end thereof, and the clamping block (211) is in meshing connection with the gear ring (204).
2. A clog resistant land drainage pump according to claim 1, wherein, The bottom mounting base (201) is further provided with a first threaded hole (212) formed on both sides thereof, and the first threaded hole (212) is movably mounted with a first screw (213) therein.
3. A clog resistant land drainage pump according to claim 1, wherein, The active sleeve (210) is further provided with a first mounting hole (214) formed therein, and the first mounting hole (214) is located at the outer end of the first screw (213).
4. A clog resistant land drainage pump according to claim 2, wherein, The fixed shaft (206) is further provided with a second threaded hole (215) formed in the upper and lower sides thereof, and the upper cutting knife (207) and the lower cutting knife (208) are further provided with a second mounting hole (216) formed at the center thereof, and the second mounting hole (216) and the second threaded hole (215) are movably mounted with a second screw (217) therein.
5. A clog resistant land drainage pump according to claim 1, wherein, The bottom of the sewage pump body (100) and the top of the bottom mounting base (201) are further provided with a third threaded hole (218) and a third mounting hole (219) formed thereon, respectively, and the third threaded hole (218) and the third mounting hole (219) are movably mounted with a third screw (220) therein.
6. A clog resistant land drainage pump according to claim 1, wherein, The length of the upper cutting knife (207) is greater than the length of the lower cutting knife (208).
7. A clog resistant land drainage pump according to claim 1, wherein,
Citation Information
Patent Citations
Base and vertical sewage pump
CN222334070U