Water treatment mud scraper

By designing an automated water treatment scraper, and utilizing a gear transmission system and suction pipe to achieve automatic cleaning of the scraper, the problem of sludge adhering to the scraper is solved, water treatment efficiency is improved, manual maintenance is reduced, and automated cleaning is achieved.

CN224207487UActive Publication Date: 2026-05-08SHANGHAI MINHANG ENVIRONMENTAL PROTECTION DEV IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI MINHANG ENVIRONMENTAL PROTECTION DEV IND CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing sludge scrapers are prone to sludge adhering to the scraper blades during the scraping process, which leads to a decrease in subsequent water treatment efficiency and requires manual cleaning, lacking self-cleaning capability.

Method used

A water treatment sludge scraper was designed, comprising a main support frame, a sludge scraping device, a lifting plate, an arc-shaped scraper, and a suction pipe. It achieves automatic cleaning of adhering sludge through a gear transmission system and automatically discharges sludge through the suction pipe.

Benefits of technology

It enables automatic cleaning of the sludge scraper, reduces the impact on subsequent water treatment, improves treatment efficiency, and reduces the need for manual maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a water treatment mud scraper which comprises a main support frame and a mud scraping device, a mounting seat is fixed on the main support frame, a main shaft is inserted on the mounting seat, the main shaft is arranged in the mounting seat and is provided with a second gear, a lifting plate is mounted on the main shaft, a pair of lifting rods is mounted on the main support frame, one end, far away from the main support frame, of each lifting rod is connected with two ends of the lifting plate, and two pairs of moving wheels are mounted at two ends of the main support frame; the sludge scraping device is installed on the main shaft and comprises a fixing head, the fixing head is fixed to the bottom of the main shaft, a pair of arc-shaped sliding rails are formed in the fixing head, a pair of arc-shaped supporting arms are fixed to the fixing head, arc-shaped scraping plates are arranged on the arc-shaped sliding rails and the arc-shaped supporting arms in a sliding mode, a pair of scraping plates are arranged at the bottom of the main supporting frame, and a sewage suction pipe is arranged in the main shaft. Through the relevant structural design, the sludge adhered to the sludge scraping plate can be automatically cleaned, so that the influence on subsequent water treatment is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of water treatment technology, specifically relating to a water treatment sludge scraper. Background Technology

[0002] Water treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater is usually collected in circular wastewater tanks for centralized treatment. After long-term use, a large amount of sludge accumulates at the bottom of the circular wastewater tanks, and sludge also forms on the sides, affecting the subsequent use of the tanks. Currently, sludge removal from circular wastewater tanks is usually done using a sludge suction machine.

[0003] Current sludge scrapers use a motor to drive the scraper head to rotate at the bottom of the sewage tank, pushing the sludge to the discharge outlet for removal. However, the scraper blades often accumulate a large amount of sludge during the scraping process. If not cleaned promptly, this can affect the efficiency of the sewage tank's subsequent sewage treatment. Existing equipment generally cannot automatically clean the scraper blades and requires manual cleaning.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a water treatment sludge scraper.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a water treatment sludge scraper that can solve the problem that existing sludge scrapers cannot clean themselves.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides a water treatment sludge scraper, comprising: a main support frame and a sludge scraping device;

[0008] A mounting base is fixed on the main support frame, a main shaft is inserted into the mounting base, a second gear is installed in the main shaft inside the mounting base, a lifting plate is installed on the main shaft, and a pair of lifting rods are installed on the main support frame. The ends of the pair of lifting rods away from the main support frame are connected to the two ends of the lifting plate.

[0009] The sludge scraping device is mounted on the main shaft. The sludge scraping device includes a fixed head, which is fixed to the bottom of the main shaft. A pair of arc-shaped slide rails are cut into the fixed head, and a pair of arc-shaped support arms are fixed to the fixed head. Arc-shaped scrapers slide on the arc-shaped slide rails and arc-shaped support arms. A pair of scrapers are provided at the bottom of the main support frame, and a suction pipe is provided inside the main shaft.

[0010] In one or more embodiments of this utility model, two pairs of movable wheels are installed at both ends of the main support frame, which facilitates the movement of the device.

[0011] In one or more embodiments of this utility model, a retaining bar is fixed on the second gear, and a retaining bar groove is chiseled on the main shaft. The retaining bar slides in the retaining bar groove, so that the second gear can always drive the main shaft to rotate after the main shaft slides up and down.

[0012] In one or more embodiments of this utility model, a first drive shaft is mounted on the mounting base. A first gear is fixed inside the mounting base on the first drive shaft. The first gear and a second gear mesh with each other. When the device is in use, the first drive shaft needs to be driven by an external drive device to rotate. Then the first drive shaft drives the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the main shaft to rotate.

[0013] In one or more embodiments of this utility model, an annular groove is cut into the main shaft, and the lifting plate is engaged in the annular groove. By engaging the lifting plate in the annular groove, the main shaft moves up and down when the lifting plate moves up and down.

[0014] In one or more embodiments of this utility model, a pair of suction ports are fixed at the bottom of the fixed head, and the pair of suction ports are connected to the suction pipe. The suction pipe sucks out the sludge scraped to the center by a pair of arc-shaped scrapers through the pair of suction ports.

[0015] In one or more embodiments of this utility model, each of the pair of arc-shaped scrapers is chiseled with an arc-shaped rack, and a pair of spur gears are installed inside the fixed head. The rotation of the spur gears drives the arc-shaped racks to rotate.

[0016] In one or more embodiments of this utility model, the arc-shaped rack and the spur gear mesh with each other. When the spur gear is rotated, the spur gear drives the arc-shaped scraper to slide along the trajectory of the arc-shaped slide rail through the arc-shaped rack.

[0017] In one or more embodiments of this utility model, a pair of fixed seats are fixed on the main shaft, and a second transmission shaft is installed on each pair of fixed seats. The fixed seats are used to install a drive device, and the second transmission shaft is connected to the drive device to drive the second transmission shaft to rotate.

[0018] In one or more embodiments of this utility model, one end of the second drive shaft located inside the fixed head is connected to a spur gear, and the second drive shaft drives the spur gear to rotate.

[0019] Compared with the prior art, this utility model, through its related structural design, can automatically clean the sludge adhering to the scraper plate, thereby reducing the impact on subsequent water treatment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a water treatment sludge scraper according to one embodiment of the present invention;

[0022] Figure 2 This is a perspective view of a water treatment sludge scraper from another angle in one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the main shaft structure in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 The structural diagram shown at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the structure of the fixing head in one embodiment of the present invention;

[0026] Figure 6 for Figure 5 The structural diagram shown at point B in the middle;

[0027] Figure 7 This is a structural schematic diagram of the fixed head from another perspective in one embodiment of the present invention;

[0028] Figure 8 for Figure 7 The structural diagram shown at point C.

[0029] Explanation of key figure labels:

[0030] 1-Main support frame, 101-Mounting base, 102-Main shaft, 103-Lifting plate, 104-Lifting rod, 105-First drive shaft, 106-First gear, 107-Second gear, 108-Clamping bar, 109-Clamping bar groove, 110-Annular groove, 111-Moving wheel, 2-Sludge scraping device, 201-Fixed head, 202-Arc-shaped slide rail, 203-Arc-shaped support arm, 204-Arc-shaped scraper, 205-Suction pipe, 206-Suction port, 207-Scraper, 208-Arc-shaped rack, 209-Spur gear, 210-Second drive shaft, 211-Fixed base. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0032] like Figures 1 to 8 As shown, a water treatment sludge scraper according to one embodiment of the present invention includes: a main support frame 1 and a sludge scraping device 2.

[0033] like Figures 1 to 5 As shown, a mounting base 101 is fixed on the main support frame 1, and a main shaft 102 is inserted into the mounting base 101. The main support frame 1 provides support, and the mounting base 101 is used to mount the main shaft 102. The main shaft 102 drives the sludge scraping device 2 to rotate, enabling the sludge scraping device 2 to perform sludge scraping operations. A second gear 107 is installed inside the mounting base 101 on the main shaft 102, and the second gear 107 drives the main shaft 102 to rotate. A lifting plate 103 is installed on the main shaft 102, and the lifting plate 103 drives the main shaft 102 to move up and down, which in turn drives the sludge scraping device 2 to move up and down, moving the sludge scraping device 2 to the bottom of the sewage tank. A pair of lifting rods 104 are installed on the main support frame 1. The end of the pair of lifting rods 104 away from the main support frame 1 is connected to both ends of the lifting plate 103. The end of the lifting rod 104 away from the lifting plate 103 is used to connect to the telescopic device, which drives the lifting rod 104 to move up and down, and the lifting rod 104 drives the lifting plate 103 to move up and down.

[0034] like Figures 1 to 5 As shown, two pairs of movable wheels 111 are installed at both ends of the main support frame 1, which facilitate the movement of the device. A retaining bar 108 is fixed on the second gear 107, and a retaining bar groove 109 is cut on the main shaft 102. The retaining bar 108 slides in the retaining bar groove 109. By sliding the retaining bar 108 in the retaining bar groove 109, the second gear 107 can always drive the main shaft 102 to rotate after the main shaft 102 slides up and down.

[0035] like Figures 1 to 5As shown, a first drive shaft 105 is mounted on the mounting base 101. A first gear 106 is fixed within the mounting base 101 on the first drive shaft 105. The first gear 106 meshes with a second gear 107. When the device is in use, the first drive shaft 105 requires an external drive device to rotate. Then, the first drive shaft 105 drives the first gear 106 to rotate, the first gear 106 drives the second gear 107 to rotate, and the second gear 107 drives the main shaft 102 to rotate. An annular groove 110 is carved into the main shaft 102. A lifting plate 103 is engaged in the annular groove 110. By engaging the lifting plate 103 in the annular groove 110, the lifting plate 103 moves up and down, causing the main shaft 102 to move up and down.

[0036] like Figures 5 to 8 As shown, the sludge scraping device 2 is installed on the main shaft 102. The sludge scraping device 2 includes a fixed head 201, which is fixed to the bottom of the main shaft 102. The main shaft 102 drives the fixed head 201 to rotate, and the fixed head 201 drives the lifting rod 104 to rotate to perform sludge scraping. A pair of arc-shaped slide rails 202 are carved on the fixed head 201, and a pair of arc-shaped support arms 203 are fixed on the fixed head 201. Arc-shaped scrapers 204 slide on the arc-shaped slide rails 202 and the arc-shaped support arms 203. A pair of scrapers 207 are provided at the bottom of the main support frame 1. The arc-shaped scrapers 204 slide on the arc-shaped slide rails 202. When they slide to the scraper 207, the scraper 207 scrapes off the sludge adhering to the arc-shaped scraper 204. The arc-shaped support arms 203 support the arc-shaped scraper 204, and the arc-shaped scraper 204 scrapes the sludge at the bottom of the pool towards the center. The main shaft 102 is equipped with a suction pipe 205. The suction pipe 205 needs to be connected to an external suction pump to suck out the scraped sludge.

[0037] like Figures 5 to 8 As shown, a pair of suction ports 206 are fixed to the bottom of the fixed head 201. The pair of suction ports 206 are connected to the suction pipe 205. The suction pipe 205 sucks out the sludge scraped to the center by a pair of arc-shaped scrapers 204 through the pair of suction ports 206. Each of the pair of arc-shaped scrapers 204 has an arc-shaped rack 208. A pair of spur gears 209 are installed inside the fixed head 201. The rotation of the spur gears 209 drives the arc-shaped racks 208 to rotate. The arc-shaped racks 208 and the spur gears 209 mesh with each other. When the spur gears 209 rotate, they drive the arc-shaped scrapers 204 to slide along the trajectory of the arc-shaped slide rail 202 through the arc-shaped racks 208.

[0038] like Figures 5 to 8As shown, a pair of fixed seats 211 are fixed on the main shaft 102. A second drive shaft 210 is mounted on each of the fixed seats 211. The fixed seats 211 are used to mount the drive device. The second drive shaft 210 is connected to the drive device, which drives the second drive shaft 210 to rotate. One end of the second drive shaft 210 located inside the fixed head 201 is connected to a spur gear 209, and the second drive shaft 210 drives the spur gear 209 to rotate.

[0039] Working principle: Before using this device, both the first drive shaft 105 and the second drive shaft 210 need to be externally driven to rotate. The suction pipe 205 is connected to an external suction pump. The lifting rod 104 is connected to the lifting cylinder. In use, first move the device to the sewage tank that needs to be cleaned, and then use the lifting cylinder to move the lifting rod 104 downward. The lifting rod 104 drives the main shaft 102 downward through the lifting plate 103. The main shaft 102 drives the sludge scraper 2 to move to the bottom of the sewage tank. After the sludge scraper 2 is moved to the bottom of the sewage tank, turn off the lifting cylinder. The cylinder then acts as a drive device connected to the first drive shaft 105, which drives the first drive shaft 105 to rotate. At the same time, it acts as a sludge suction pump. The first drive shaft 105 drives the first gear 106 to rotate, the first gear 106 drives the second gear 107 to rotate, the second gear 107 drives the main shaft 102 to rotate, the main shaft 102 drives the fixed head 201 to rotate, the fixed head 201 drives the arc scraper 204 to rotate, the arc scraper 204 scrapes the sludge at the bottom of the pool towards the center, and then the suction pipe 205 sucks the sludge out of the pool through the suction port 206.

[0040] After the sludge scraping is finished, when it is necessary to clean the sludge adhering to the arc-shaped scraper 204, the drive device connected to the second drive shaft 210 is started. The second drive shaft 210 drives the spur gear 209 to rotate. The spur gear 209 drives the arc-shaped scraper 204 to move along the arc-shaped track of the arc-shaped slide rail 202 through the arc-shaped rack 208. When the arc-shaped scraper 204 moves to the scraper 207, the sludge adhering to the arc-shaped scraper 204 is scraped off by the scraper 207. The scraped sludge is then sucked away through the suction port 206. After the removal is completed, the spur gear 209 is rotated in the opposite direction to rotate the arc-shaped scraper 204 back to its original position.

[0041] 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.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water treatment sludge scraper, characterized in that, include: A main support frame, on which a mounting base is fixed, a main shaft is inserted into the mounting base, a second gear is installed in the mounting base, a lifting plate is installed on the main shaft, and a pair of lifting rods are installed on the main support frame, with the ends of the pair of lifting rods away from the main support frame connected to the two ends of the lifting plate. A sludge scraping device is installed on the main shaft. The sludge scraping device includes a fixed head, which is fixed to the bottom of the main shaft. A pair of arc-shaped slide rails are cut on the fixed head, and a pair of arc-shaped support arms are fixed on the fixed head. Arc-shaped scrapers slide on the arc-shaped slide rails and arc-shaped support arms. A pair of scrapers are provided at the bottom of the main support frame, and a suction pipe is provided inside the main shaft.

2. The water treatment sludge scraper according to claim 1, characterized in that, Two pairs of casters are installed at both ends of the main support frame.

3. A water treatment sludge scraper according to claim 1, characterized in that, A retaining bar is fixed on the second gear, and a retaining bar groove is cut on the main shaft, and the retaining bar slides in the retaining bar groove.

4. A water treatment sludge scraper according to claim 1, characterized in that, The mounting base is previously equipped with a first drive shaft, and the first drive shaft is fixed with a first gear inside the mounting base. The first gear and the second gear mesh with each other.

5. A water treatment sludge scraper according to claim 1, characterized in that, The main shaft has an annular groove, and the lifting plate is engaged in the annular groove.

6. A water treatment sludge scraper according to claim 1, characterized in that, The bottom of the fixed head is fixed with a pair of suction ports, and the pair of suction ports are connected to the suction pipe.

7. A water treatment sludge scraper according to claim 1, characterized in that, Both of the arc-shaped scrapers are chiseled with arc-shaped toothed racks, and a pair of spur gears are installed inside the fixed head.

8. A water treatment sludge scraper according to claim 7, characterized in that, The arc-shaped rack meshes with the spur gear.

9. A water treatment sludge scraper according to claim 8, characterized in that, A pair of fixed seats are fixed on the main shaft, and a second drive shaft is installed on each of the fixed seats.

10. A water treatment sludge scraper according to claim 9, characterized in that, The second drive shaft is located at one end inside the fixed head and is connected to a spur gear.