A hand-lifted blade type mud scraper

By employing a manually adjustable scraper structure and a guide bucket design, the problem of adjusting the spacing of the sludge scraper has been solved, improving sludge scraping efficiency and equipment stability while reducing maintenance difficulty and costs.

CN224524041UActive Publication Date: 2026-07-21WUXI ZEBANG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI ZEBANG ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-06-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the operation of existing sludge scrapers, the distance between the scraper blades and the water tank is not easy to adjust, which leads to sludge accumulation, producing odors or accelerated scraper blade wear, increasing maintenance costs.

Method used

The design incorporates a manually adjustable scraper structure. The distance between the scraper and the water tank is adjusted by locking bolts, and the sludge is guided to the collection area via a guide bucket, forming a stable scraper arm structure to distribute force evenly and increase stability.

Benefits of technology

It enables the sludge scraper to quickly adapt to changes in water volume and sludge concentration, improves scraping efficiency, reduces accumulation and wear, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mud scraper blade, especially to a hand -operated lift scraper blade's mud scraper, including scraper arm main shaft, the outside welding fixed of scraper arm main shaft has first mount pad, the side of first mount pad is connected with big scraper arm body through bolt fixedly, the outside welding fixed of scraper arm main shaft has second mount pad, the side of second mount pad is connected with small scraper arm body through bolt fixedly, the side of first mount pad is connected with the reinforcing support through bolt fixedly, the bottom surface of scraper arm main shaft is connected with the flow guide hopper through bolt fixedly. The utility model discloses through adjusting locking bolt and connecting piece, realizes the distance adjustable of scraper blade and the bottom of pool, can promote the mud scraping effect of scraper blade, through the height of scraper blade manual regulation makes mud scraper quick adaptation water volume, sludge concentration etc. change to enhance the mud scraping capacity of device, the maintenance management of equipment is convenient, has reduced maintenance cost and difficulty.
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Description

Technical Field

[0001] This utility model relates to the field of sludge scraper technology, and in particular to a sludge scraper with manually adjustable lifting scraper. Background Technology

[0002] Sludge scrapers are commonly used sludge removal machines in sedimentation tanks. Sedimentation is a crucial step in wastewater treatment, and the quality of sludge sedimentation directly affects the effluent quality. By scraping and collecting the sludge that has settled at the bottom of the sedimentation tank after sedimentation, and then performing pressure filtration, sludge scrapers play an extremely important role in wastewater treatment. Through a speed reduction drive and a suspended component transmission, the sludge scraper scrapes the sludge to the central sludge collection trough, and then discharges it out of the sedimentation tank for further treatment by hydrostatic pressure or a sludge pump.

[0003] In current sludge scrapers, if the gap between the scraper blades and the water tank is too large, sludge will accumulate in large quantities at the bottom of the tank, resulting in odor and deterioration of water quality. If the gap between the scraper blades and the water tank is too small, the friction between the scraper blades and the bottom of the tank will increase, thereby accelerating the wear of the scraper blades, reducing their service life, and increasing the maintenance costs of the equipment.

[0004] Therefore, to address the aforementioned issue of the inconvenience in adjusting the distance between the scraper blade and the water tank, an adjustable structure can be installed to flexibly adjust the scraper height, ensuring a suitable distance between the scraper blade and the bottom of the tank, thereby improving the scraping effect. By adjusting the scraper height, the scraper can quickly adapt to changes in water volume, sludge concentration, etc., enhancing the scraping capacity of the device, facilitating equipment maintenance and management, and reducing maintenance costs and difficulties. Utility Model Content

[0005] To address the issues that excessive spacing between the scraper blade and the water tank during sludge scraping machine operation can lead to sludge accumulation at the bottom of the tank, resulting in odor and water quality deterioration, while insufficient spacing can increase friction between the scraper blade and the tank bottom, accelerating scraper wear, reducing scraper lifespan, and increasing equipment maintenance costs.

[0006] The technical solution of this utility model is as follows: a sludge scraper with manual lifting scraper, including a scraper arm main shaft, a first mounting seat welded and fixed to the outside of the scraper arm main shaft, a large scraper arm body fixedly connected to the side of the first mounting seat by bolts, a second mounting seat welded and fixed to the outside of the scraper arm main shaft, a small scraper arm body fixedly connected to the side of the second mounting seat by bolts, a reinforcing support rod fixedly connected to the side of the first mounting seat by bolts, and a guide bucket fixedly connected to the bottom surface of the scraper arm main shaft by bolts.

[0007] Preferably, the large scraper arm body is bolted at equal angles to both sides of the first mounting base, the second mounting base is located below the first mounting base, the small scraper arm body is bolted symmetrically to both sides of the second mounting base, and the reinforcing support rod is bolted symmetrically to the other two sides of the second mounting base.

[0008] Preferably, a first large connecting seat is welded and fixed to the outer side of the scraper arm main shaft. The first large connecting seats are symmetrically distributed on the scraper arm main shaft. A second large connecting seat is welded and fixed to the top surface of the large scraper arm body. A large scraper arm tie rod is fixedly connected to the outer side of the first large connecting seat. The other end of the large scraper arm tie rod is fixedly connected to the second large connecting seat.

[0009] Preferably, a reinforcing rod is welded and fixed to the side of the large scraper arm body, the reinforcing rods are evenly distributed on the large scraper arm body, a first small connecting seat is welded and fixed to the side of the reinforcing rod, the first small connecting seat is welded and fixed to a group of reinforcing rods away from the scraper arm main shaft, and a second small connecting seat is welded and fixed to the side of the small scraper arm body.

[0010] Preferably, a first reinforcing seat is welded and fixed to the side of the reinforcing support rod, and a second reinforcing seat is welded and fixed to the bottom surface of the reinforcing support rod. A small scraper arm tie rod is fixedly connected to the outer side of the first reinforcing seat, and the other end of the small scraper arm tie rod is fixedly connected to the first small connecting seat. A small scraper arm tie rod is fixedly connected to the outer side of the second reinforcing seat, and the other end of the small scraper arm tie rod is fixedly connected to the second small connecting seat.

[0011] Preferably, a support plate is welded and fixed to the bottom surface of the large scraper arm body. The support plates are evenly distributed on the bottom surface of the large scraper arm body. A connector is welded and fixed to the bottom surface of the support plate. The connectors are symmetrically distributed on the support plate. A scraper body is provided on the outside of the connector. A sliding groove is opened on the top surface of the scraper body. The sliding groove is symmetrically distributed on the scraper body. The connector is slidably connected to the sliding groove.

[0012] Preferably, the connecting member has an adjustment groove on its side, and an adjustment seat is welded and fixed to the top surface of the scraper body. The adjustment seat is located on both sides of the connecting member. The side of the adjustment seat has a locking groove, which is connected to the adjustment groove. The inner wall of the locking groove is connected to a locking bolt by a thread, and the locking bolt is slidably connected to the adjustment groove.

[0013] The beneficial effects of this utility model are:

[0014] 1. By loosening the locking bolts, the scraper body can slide on the connecting piece. After ensuring that the scraper body is at a suitable distance from the bottom of the pool, the locking bolts are tightened to maintain the connection stability of the scraper body. This can improve the sludge scraping effect of the scraper body. By manually adjusting the distance between the scraper body and the pool, the sludge scraper can quickly adapt to changes in water volume and sludge concentration, thereby enhancing the sludge scraping capacity of the device and facilitating equipment maintenance and management, reducing maintenance costs and difficulties.

[0015] 2. During the sludge scraping process, the small scraper arm can be connected to the large scraper arm and the reinforcing support rod through the small scraper arm tie rod, thus forming a more stable overall structure. This increases the stability of the small scraper arm structure, makes the force on the small scraper arm more evenly distributed on the entire structure, and allows the small scraper arm to maintain a better shape and position when scraping sludge, more accurately scraping the sludge to the designated location. This improves the efficiency and effect of sludge scraping, reduces the possibility of deformation or damage due to force during sludge scraping, extends the service life of the sludge scraper, and ensures the normal operation of the equipment as a whole.

[0016] 3. During the sludge discharge process, the conical guide bucket can guide the sludge smoothly to the collection area of ​​the scraper, allowing the sludge to move in a specific direction. This improves sludge collection efficiency, reduces sludge accumulation and retention at the bottom of the pool, and expands the contact area between the scraper and the sludge. This allows the scraper to more comprehensively cover the sludge at the bottom of the pool, improving the thoroughness of the scraping and helping to remove sludge from the bottom of the pool more effectively. In addition, the guide bucket can buffer the impact of the water flow to a certain extent, reducing the direct impact of the water flow on the lower structure of the scraper, thereby protecting the internal parts of the scraper and enabling it to work more stably. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0018] Figure 2 The diagram shown is a three-dimensional structural schematic of the scraper arm main shaft of this utility model;

[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the large scraper arm body of this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the scraper body of this utility model;

[0021] Figure 5 The diagram shown is a three-dimensional structural diagram of the connector and scraper body of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Scraper arm main shaft; 2. First mounting seat; 3. Large scraper arm body; 4. Second mounting seat; 5. Small scraper arm body; 6. Reinforcing support rod; 7. Guide bucket; 101. First large connecting seat; 102. Second large connecting seat; 103. Large scraper arm tie rod; 301. Reinforcing rod; 302. First small connecting seat; 303. Second small connecting seat; 601. First reinforcing seat; 602. Second reinforcing seat; 603. Small scraper arm tie rod; 701. Support plate; 702. Connecting piece; 703. Scraper body; 704. Sliding groove; 705. Adjusting groove; 706. Adjusting seat; 707. Locking groove; 708. Locking bolt. 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 Figures 1-5 This utility model provides an embodiment: a sludge scraper with a manually adjustable lifting scraper, including a scraper arm main shaft 1, a first mounting base 2 welded and fixed to the outer side of the scraper arm main shaft 1, a large scraper arm body 3 fixedly connected to the side of the first mounting base 2 by bolts, a second mounting base 4 welded and fixed to the outer side of the scraper arm main shaft 1, a small scraper arm body 5 fixedly connected to the side of the second mounting base 4 by bolts, a reinforcing support rod 6 fixedly connected to the side of the first mounting base 2 by bolts, and a guide bucket 7 fixedly connected to the bottom surface of the scraper arm main shaft 1 by bolts.

[0025] The large scraper arm body 3 is bolted to both sides of the first mounting base 2 at equal angles. The second mounting base 4 is located below the first mounting base 2. The small scraper arm body 5 is bolted to both sides of the second mounting base 4. The reinforcing support rod 6 is bolted to the other two sides of the second mounting base 4. The conical guide bucket 7 guides the sludge to flow smoothly to the collection area of ​​the scraper, allowing the sludge to move in a specific direction, thereby improving the sludge collection efficiency and reducing the accumulation and retention of sludge at the bottom of the pool. The guide bucket 7 expands the contact area between the scraper and the sludge, allowing the scraper to more comprehensively cover the sludge at the bottom of the pool, improving the thoroughness of the scraping and helping to remove the sludge at the bottom of the pool more effectively. In addition, the guide bucket 7 can buffer the impact of the water flow to a certain extent, reducing the direct effect of the water flow on the lower structure of the scraper, thereby protecting the internal parts of the scraper and enabling it to work more stably.

[0026] A first large connecting seat 101 is welded and fixed to the outer side of the scraper arm main shaft 1. The first large connecting seat 101 is symmetrically distributed on the scraper arm main shaft 1. A second large connecting seat 102 is welded and fixed to the top surface of the large scraper arm body 3. A large scraper arm tie rod 103 is fixedly connected to the outer side of the first large connecting seat 101. The other end of the large scraper arm tie rod 103 is fixedly connected to the second large connecting seat 102. The scraper arm main shaft 1 and the large scraper arm body 3 can be connected through the large scraper arm tie rod 103, thereby increasing the structural strength of the large scraper arm body 3.

[0027] A reinforcing rod 301 is welded and fixed to the side of the large scraper arm body 3. The reinforcing rods 301 are evenly distributed on the large scraper arm body 3. A first small connecting seat 302 is welded and fixed to the side of the reinforcing rod 301. The first small connecting seat 302 is welded and fixed to a group of reinforcing rods 301 away from the scraper arm main shaft 1. A second small connecting seat 303 is welded and fixed to the side of the small scraper arm body 5. The reinforcing rods 301 increase the overall strength of the large scraper arm body 3 and ensure the stability of the large scraper arm body 3 during operation.

[0028] A first reinforcing seat 601 is welded and fixed to the side of the reinforcing support rod 6, and a second reinforcing seat 602 is welded and fixed to the bottom surface of the reinforcing support rod 6. A small scraper arm tie rod 603 is fixedly connected to the outer side of the first reinforcing seat 601, and the other end of the small scraper arm tie rod 603 is fixedly connected to the first small connecting seat 302. A small scraper arm tie rod 603 is fixedly connected to the outer side of the second reinforcing seat 602, and the other end of the small scraper arm tie rod 603 is fixedly connected to the second small connecting seat 303. The small scraper arm body 5 can be connected to the second reinforcing support rod 602 via the small scraper arm tie rod 603. The large scraper arm body 3 and the reinforcing support rod 6 are connected to form a more stable overall structure, which increases the stability of the small scraper arm body 5 structure. This allows the force on the small scraper arm body 5 to be distributed more evenly throughout the structure, enabling the small scraper arm body 5 to maintain a better shape and position when scraping sludge, and to scrape the sludge more accurately to the designated location. This improves the efficiency and effect of sludge scraping, reduces the possibility of deformation or damage caused by force during sludge scraping, extends the service life of the sludge scraper, and ensures the normal operation of the entire equipment.

[0029] A support plate 701 is welded and fixed to the bottom surface of the large scraper arm body 3. The support plates 701 are evenly distributed on the bottom surface of the large scraper arm body 3. A connector 702 is welded and fixed to the bottom surface of the support plate 701. The connector 702 is symmetrically distributed on the support plate 701. A scraper body 703 is provided on the outer side of the connector 702. A sliding groove 704 is opened on the top surface of the scraper body 703. The sliding groove 704 is symmetrically distributed on the scraper body 703. The connector 702 is slidably connected to the sliding groove 704. The scraper body 703 and the support plate 701 are connected and fixed through the connector 702. During the operation of the device, the sludge in the sedimentation tank is scraped by the scraper body 703.

[0030] The connecting piece 702 has an adjustment groove 705 on its side. An adjustment seat 706 is welded and fixed to the top surface of the scraper body 703. The adjustment seat 706 is located on both sides of the connecting piece 702. A locking groove 707 is provided on the side of the adjustment seat 706, and the locking groove 707 communicates with the adjustment groove 705. A locking bolt 708 is threadedly connected to the inner wall of the locking groove 707. The locking bolt 708 is slidably connected to the adjustment groove 705. When it is necessary to adjust the distance between the scraper body 703 and the bottom of the pool, the locking bolt 708 is... Loosen the connection so that the scraper body 703 can slide on the connector 702, ensuring that the scraper body 703 maintains a suitable distance from the bottom of the pool. Then tighten the locking bolt 708 to keep the connection of the scraper body 703 stable, thereby improving the sludge scraping effect of the scraper body 703. By manually adjusting the distance between the scraper body 703 and the pool, the sludge scraper can quickly adapt to changes in water volume and sludge concentration, thereby enhancing the sludge scraping ability of the device and facilitating equipment maintenance and management, reducing maintenance costs and difficulties.

[0031] Working principle: According to Figures 4-5 As shown, during operation, by loosening the locking bolt 708, the scraper body 703 can slide on the connector 702. After ensuring that the scraper body 703 maintains a suitable distance from the bottom of the pool, the locking bolt 708 is tightened to maintain the connection stability of the scraper body 703, thereby improving the sludge scraping effect of the scraper body 703. By manually adjusting the distance between the scraper body 703 and the pool, the sludge scraper can quickly adapt to changes in water volume and sludge concentration, thereby enhancing the sludge scraping capacity of the device and facilitating equipment maintenance and management, reducing maintenance costs and difficulties.

[0032] according to Figures 1-3 As shown, when the sludge scraper is started, the drive arm main shaft 1 rotates, which in turn drives multiple scraper bodies 703 to rotate through the large scraper body 3. During the rotation, the sludge is scraped and collected to the center of the sedimentation tank. During the sludge scraping process, the small scraper body 5 can be connected to the large scraper body 3 and the reinforcing support rod 6 through the small scraper tie rod 603, thereby forming a more stable overall structure, increasing the stability of the small scraper body 5 structure, making the force on the small scraper body 5 more evenly distributed on the entire structure, so that the small scraper body 5 can maintain a better shape and position when scraping sludge, and more accurately scrape the sludge to the designated position, thereby improving the sludge scraping efficiency and effect, reducing the possibility of deformation or damage due to force during the sludge scraping process, extending the service life of the sludge scraper, and ensuring the normal operation of the equipment as a whole.

[0033] according to Figures 1-2As shown, during the sludge discharge process, the conical guide bucket 7 guides the sludge smoothly to the collection area of ​​the scraper, allowing the sludge to move in a specific direction. This improves sludge collection efficiency and reduces sludge accumulation and retention at the bottom of the pool. The guide bucket 7 also expands the contact area between the scraper and the sludge, enabling the scraper to more comprehensively cover the sludge at the bottom of the pool, improving the thoroughness of scraping and helping to remove sludge from the bottom of the pool more effectively. Furthermore, the guide bucket 7 can buffer the impact of the water flow to a certain extent, reducing the direct impact of the water flow on the lower structure of the scraper, thereby protecting the internal parts of the scraper and enabling it to work more stably.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] 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 sludge scraper with manually adjustable lifting scraper, comprising a scraper arm main shaft (1), characterized in that: A first mounting base (2) is welded and fixed to the outside of the scraper arm main shaft (1). A large scraper arm body (3) is fixedly connected to the side of the first mounting base (2) by bolts. A second mounting base (4) is welded and fixed to the outside of the scraper arm main shaft (1). A small scraper arm body (5) is fixedly connected to the side of the second mounting base (4) by bolts. A reinforcing support rod (6) is fixedly connected to the side of the first mounting base (2) by bolts. A guide bucket (7) is fixedly connected to the bottom surface of the scraper arm main shaft (1) by bolts.

2. The sludge scraper with manually lifting scraper according to claim 1, characterized in that: The large scraper arm body (3) is installed at equal angles on both sides of the first mounting base (2) by bolts, the second mounting base (4) is located below the first mounting base (2), the small scraper arm body (5) is symmetrically installed on both sides of the second mounting base (4) by bolts, and the reinforcing support rod (6) is symmetrically installed on the other two sides of the second mounting base (4) by bolts.

3. A sludge scraper with a manually lifting scraper according to claim 1, characterized in that: The outer side of the scraper arm main shaft (1) is welded and fixed with a first large connecting seat (101). The first large connecting seat (101) is symmetrically distributed on the scraper arm main shaft (1). The top surface of the large scraper arm body (3) is welded and fixed with a second large connecting seat (102). The outer side of the first large connecting seat (101) is fixedly connected with a large scraper arm tie rod (103). The other end of the large scraper arm tie rod (103) is fixedly connected to the second large connecting seat (102).

4. A sludge scraper with a manually adjustable lifting scraper according to claim 1, characterized in that: A reinforcing rod (301) is welded and fixed to the side of the large scraper arm body (3). The reinforcing rods (301) are evenly distributed on the large scraper arm body (3). A first small connecting seat (302) is welded and fixed to the side of the reinforcing rod (301). The first small connecting seat (302) is welded and fixed to a group of reinforcing rods (301) away from the scraper arm main shaft (1). A second small connecting seat (303) is welded and fixed to the side of the small scraper arm body (5).

5. A sludge scraper with a manually adjustable lifting scraper according to claim 4, characterized in that: The side of the reinforcing support rod (6) is welded and fixed with a first reinforcing seat (601), and the bottom surface of the reinforcing support rod (6) is welded and fixed with a second reinforcing seat (602). A small scraper arm tie rod (603) is fixedly connected to the outside of the first reinforcing seat (601), and the other end of the small scraper arm tie rod (603) is fixedly connected to the first small connecting seat (302). The outside of the second reinforcing seat (602) is fixedly connected with a small scraper arm tie rod (603), and the other end of the small scraper arm tie rod (603) is fixedly connected to the second small connecting seat (303).

6. A sludge scraper with a manually lifting scraper according to claim 1, characterized in that: A support plate (701) is welded and fixed to the bottom surface of the large scraper arm body (3). The support plates (701) are evenly distributed on the bottom surface of the large scraper arm body (3). A connector (702) is welded and fixed to the bottom surface of the support plate (701). The connector (702) is symmetrically distributed on the support plate (701). A scraper body (703) is provided on the outside of the connector (702). A sliding groove (704) is provided on the top surface of the scraper body (703). The sliding groove (704) is symmetrically distributed on the scraper body (703). The connector (702) is slidably connected to the sliding groove (704).

7. A sludge scraper with a manually adjustable lifting scraper according to claim 6, characterized in that: The side of the connector (702) is provided with an adjustment groove (705). The top surface of the scraper body (703) is welded and fixed with an adjustment seat (706). The adjustment seat (706) is located on both sides of the connector (702). The side of the adjustment seat (706) is provided with a locking groove (707). The locking groove (707) is connected to the adjustment groove (705). The inner wall of the locking groove (707) is connected with a locking bolt (708) by a thread. The locking bolt (708) is slidably connected to the adjustment groove (705).