Sewage pool mud scraper for environmental engineering
Through the design of the limiting structure and adjustment mechanism, the support frame and scraper in the sewage tank sludge scraper can be quickly disassembled and assembled, solving the problem of not being able to quickly replace the scraper when it is damaged, and improving the maintenance efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 姜滨
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-26
Smart Images

Figure CN224270277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sludge scraper technology, specifically a sludge scraper for sewage tanks used in environmental engineering. Background Technology
[0002] Through the transmission of the deceleration drive and the hanging components, the scraper set at the bottom of the support frame scrapes the sludge to the central sludge collection tank, and discharges it out of the tank by hydrostatic pressure or pump. The system adopts central water inlet and peripheral drainage to ensure uniform water flow. It uses self-priming sludge discharge by liquid level difference and is suitable for small and medium-sized circular sedimentation tanks, and is suitable for occasions with moderate sludge volume and high space requirements.
[0003] When using existing sludge scrapers for wastewater treatment in environmental engineering, their function is to scrape sludge into a collection trough using scrapers for centralized discharge. However, the support frame and scraper in existing sludge scrapers cannot be quickly disassembled and assembled, resulting in the inability to quickly replace damaged scrapers. Utility Model Content
[0004] The purpose of this utility model is to provide a sludge scraper for sewage tanks in environmental engineering, so as to solve the problem mentioned in the background art that the support frame and scraper of the existing sludge scraper cannot be quickly disassembled and assembled, and that the scraper cannot be quickly replaced when it is damaged.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sludge scraper for wastewater treatment plants in environmental engineering, comprising:
[0006] The device body includes a control rod, with support frames connected to both sides of the control rod, and a scraper provided at the bottom of the support frame;
[0007] The scraper is internally fitted with limiting structures on both sides. Each limiting structure includes a limiting screw. One end of the limiting screw is provided with a limiting ring. The other end of the limiting screw is fitted with a positioning frame. A nut is rotatably connected to the outer surface of one end of the limiting ring. Fixing plates are connected to both sides of the positioning frame.
[0008] Preferably, the bottom surface of the support frame has a groove, and the top of the scraper is inserted into the groove of the support frame.
[0009] Preferably, the inner wall of the groove of the support frame is provided with a through hole one on both sides, the surface of the scraper is provided with a through hole two on both sides, and one end of the limiting screw is inserted into the through hole one and through hole two of the support frame and the scraper.
[0010] Preferably, the bottom surface of the positioning frame has through grooves on both sides, one end of the limiting screw is inserted into the through groove of the positioning frame, and the limiting screw and the nut are rotatably connected by threads.
[0011] Preferably, the surface of the fixing plate is connected to an adjustment mechanism, the adjustment mechanism including a fixing sleeve, an adjusting screw rotatably connected inside the fixing sleeve, a limit rod connected to one end of the adjusting screw, a support spring connected inside one side of the limit rod, and a slide rod connected to one end of the support spring.
[0012] Preferably, the surface of the fixing plate has a slot, the fixing screw sleeve is disposed on the surface of the slot opening of the fixing plate, the fixing screw sleeve and the adjusting screw are rotatably connected by a thread, the support frame has movable slots on both sides, and one end of the limiting rod is inserted into the movable slot of the support frame.
[0013] Preferably, a sliding groove is provided on one side of the inner wall of the movable groove of the limiting rod, one end of the sliding rod is connected to the inside of the sliding groove of the limiting rod, a groove is provided on one side of the limiting rod, and one end of the supporting spring is connected to one side of the inner wall of the groove of the limiting rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. By inserting the top of the scraper into the groove of the support frame, and then inserting the limiting screw connected to one end of the limiting ring into the through holes one and two of the support frame and scraper, the positioning frame is moved downward. The fixing plate is used to limit the movement of the positioning frame, so that the limiting screw is inserted into the through groove at the bottom of the positioning frame for positioning. Then, the nut is rotated and connected to the outer surface of one end of the limiting screw. The nut and the limiting ring limit both ends of the limiting screw and limit the distance between the scraper and the positioning frame. This achieves quick assembly and reinforcement between the support frame and the scraper, avoiding the problem of not being able to quickly replace the scraper when it is damaged.
[0016] 2. By inserting the limiting rod into the slots of the fixing sleeve and the fixing plate, and then rotating the angle of the adjusting screw to move the adjusting screw inside the fixing sleeve, one end of the limiting rod is inserted into the movable slot of the support frame, and one end of the support spring supporting the sliding rod is inserted into the sliding groove of the support frame. This limits the movement of the limiting rod, preventing the fixing plate from detaching from the surface of the support frame. The fixing plate and the positioning frame always slide on the surface of the support frame. By pressing the sliding rod, the support spring can be contracted, causing the sliding rod to disengage from the sliding groove of the support frame, thereby realizing the adjustment and disassembly of the positioning frame. Attached Figure Description
[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model;
[0018] Figure 2 This is a partial three-dimensional view of the structure of this utility model from the front;
[0019] Figure 3 This is a partial cross-sectional perspective view of the structure of this utility model from below;
[0020] Figure 4 This is a top view and partial cross-sectional perspective view of the structure of this utility model;
[0021] Figure 5 This is a top view and partial cross-sectional plan view of the structure of this utility model.
[0022] In the diagram: 1. Device body; 11. Control rod; 12. Support frame; 13. Scraper; 2. Limiting structure; 21. Limiting screw; 22. Limiting ring; 23. Positioning frame; 24. Nut; 25. Fixing plate; 3. Adjusting mechanism; 31. Fixing sleeve; 32. Adjusting screw; 33. Limiting rod; 34. Supporting spring; 35. Slide rod. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-5 One embodiment provided by this utility model:
[0025] A sludge scraper for wastewater treatment plants in environmental engineering includes:
[0026] The device body 1 includes a control rod 11, with support frames 12 connected to both sides of the control rod 11. A scraper 13 is provided at the bottom of the support frame 12. The internal material of the scraper 13 is existing technology and can be purchased on the market. It is not considered as a technical protection point of this application, so no further details are made.
[0027] Limiting structures 2 are inserted inside both sides of the scraper 13. The limiting structure 2 includes a limiting screw 21. A limiting ring 22 is provided at one end of the limiting screw 21. A positioning frame 23 is sleeved on the outer wall of the other end of the limiting screw 21. A nut 24 is rotatably connected to the outer surface of one end of the limiting ring 22. Fixing plates 25 are connected to both sides of the positioning frame 23.
[0028] Furthermore, a groove is provided on the bottom surface of the support frame 12, and the top end of the scraper 13 is inserted into the groove provided in the support frame 12, so as to position the top end of the scraper 13 through the groove provided in the support frame 12 and limit the angle of the scraper 13.
[0029] Furthermore, the inner wall of the groove of the support frame 12 is provided with through holes on both sides, and the surface of the scraper 13 is provided with through holes on both sides. One end of the limiting screw 21 is inserted into the through holes one and two of the support frame 12 and the scraper 13, so that the limiting screw 21 is positioned by the through holes one and two of the support frame 12 and the scraper 13, thereby limiting the support frame 12 and the scraper 13.
[0030] Furthermore, through slots are provided on both sides of the bottom surface of the positioning frame 23. One end of the limiting screw 21 is inserted into the through slot of the positioning frame 23. The limiting screw 21 and the nut 24 are connected by threads to achieve the connection and fixation between the limiting screw 21 and the nut 24 through the threads, thereby limiting the positioning frame 23.
[0031] Furthermore, an adjustment mechanism 3 is connected to the surface of the fixing plate 25. The adjustment mechanism 3 includes a fixing screw sleeve 31, an adjusting screw 32 is rotatably connected inside the fixing screw sleeve 31, a limit rod 33 is connected to one end of the adjusting screw 32, a support spring 34 is connected inside one side of the limit rod 33, and a slide rod 35 is connected to one end of the support spring 34. This allows the position of the positioning frame 23 to be adjusted and disassembled by adjusting the position of the adjusting screw 32.
[0032] Furthermore, the surface of the fixing plate 25 is provided with a slot, and the fixing screw sleeve 31 is provided at the entrance of the slot of the fixing plate 25. The fixing screw sleeve 31 and the adjusting screw 32 are connected by a thread. The support frame 12 is provided with movable slots on both sides. One end of the limiting rod 33 is inserted into the movable slot of the support frame 12, so that one end of the limiting rod 33 is positioned by the movable slot of the support frame 12, so that the limiting rod 33 can slide inside the movable slot of the support frame 12.
[0033] Furthermore, a sliding groove is provided on one side of the movable groove of the limiting rod 33, and one end of the sliding rod 35 is connected to the inside of the sliding groove of the limiting rod 33. A groove is provided on one side of the limiting rod 33, and one end of the support spring 34 is connected to one side of the inner wall of the groove of the limiting rod 33. This allows the groove of the limiting rod 33 to limit one end of the support spring 34, thereby using the support spring 34 to make an elastic connection between the limiting rod 33 and the sliding rod 35.
[0034] Working principle: When assembling the sludge scraper for wastewater treatment in environmental engineering, the top of the scraper 13 is inserted into the groove of the support frame 12. Then, the limiting screw 21 connected to one end of the limiting ring 22 is inserted into the through holes one and two of the support frame 12 and the scraper 13. Then, the positioning frame 23 is moved downward, and the fixed plate 25 is used to limit the movement of the positioning frame 23, so that the limiting screw 21 is inserted into the through groove at the bottom of the positioning frame 23 for positioning. Then, the nut 24 is rotated and connected to the outer surface of one end of the limiting screw 21. The nut 24 and the limiting ring 22 limit both ends of the limiting screw 21 and limit the distance between the scraper 13 and the positioning frame 23, thereby realizing the rapid assembly and reinforcement between the support frame 12 and the scraper 13.
[0035] When adjusting the sludge scraper for wastewater treatment in environmental engineering, the limiting rod 33 is inserted into the slots of the fixing sleeve 31 and the fixing plate 25. Then, the angle of the adjusting screw 32 is rotated, causing the adjusting screw 32 to move inside the fixing sleeve 31. This allows one end of the limiting rod 33 to be inserted into the movable slot of the support frame 12, and the supporting spring 34 to support the sliding rod 35 to be inserted into the sliding groove of the support frame 12. This limits the movement of the limiting rod 33, preventing the fixing plate 25 from detaching from the surface of the support frame 12. The fixing plate 25 and the positioning frame 23 always slide on the surface of the support frame 12. Pressing the sliding rod 35 can retract the supporting spring 34, causing the sliding rod 35 to disengage from the sliding groove of the support frame 12, thereby achieving the adjustment and disassembly of the positioning frame 23.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A sludge scraper for wastewater treatment plants in environmental engineering, characterized in that, include: The device body (1) includes a control rod (11), and a support frame (12) is connected to both sides of the control rod (11). A scraper (13) is provided at the bottom of the support frame (12). The scraper (13) has a limiting structure (2) inserted inside both sides. The limiting structure (2) includes a limiting screw (21). One end of the limiting screw (21) is provided with a limiting ring (22). The other end of the limiting screw (21) is sleeved with a positioning frame (23). One end of the limiting ring (22) is rotatably connected to a nut (24). The positioning frame (23) is connected to two fixing plates (25) on both sides.
2. The sludge scraper for wastewater treatment plants in environmental engineering according to claim 1, characterized in that: The bottom surface of the support frame (12) is provided with a groove, and the top of the scraper (13) is inserted into the groove of the support frame (12).
3. The sludge scraper for wastewater treatment in environmental engineering according to claim 1, characterized in that: The support frame (12) has through holes on both sides of the groove inner wall, and the scraper (13) has through holes on both sides of the surface. One end of the limiting screw (21) is inserted into the through holes one and two of the support frame (12) and the scraper (13).
4. The sludge scraper for wastewater treatment plants in environmental engineering according to claim 1, characterized in that: The positioning frame (23) has through slots on both sides of its bottom surface. One end of the limiting screw (21) is inserted into the through slot of the positioning frame (23). The limiting screw (21) and the nut (24) are connected by a thread.
5. A sludge scraper for wastewater treatment plants in environmental engineering according to claim 1, characterized in that: The surface of the fixed plate (25) is connected to an adjustment mechanism (3). The adjustment mechanism (3) includes a fixed screw sleeve (31). An adjustment screw (32) is rotatably connected inside the fixed screw sleeve (31). One end of the adjustment screw (32) is connected to a limit rod (33). A support spring (34) is connected inside one side of the limit rod (33). One end of the support spring (34) is connected to a slide rod (35).
6. A sludge scraper for wastewater treatment plants in environmental engineering according to claim 5, characterized in that: The surface of the fixing plate (25) is provided with a slot, and the fixing screw sleeve (31) is provided on the surface of the slot opening of the fixing plate (25). The fixing screw sleeve (31) and the adjusting screw (32) are connected by a thread. The support frame (12) is provided with movable slots on both sides, and one end of the limiting rod (33) is inserted into the movable slot of the support frame (12).
7. A sludge scraper for wastewater treatment plants in environmental engineering according to claim 5, characterized in that: A sliding groove is provided on one side of the movable groove of the limiting rod (33). One end of the sliding rod (35) is connected to the inside of the sliding groove of the limiting rod (33). A groove is provided on one side of the limiting rod (33). One end of the supporting spring (34) is connected to one side of the inner wall of the groove of the limiting rod (33).