Lifting device of travelling mud scraper

Abstract

The utility model relates to the technical field of accessory devices of travelling mud scrapers, in particular to a lifting device of a travelling mud scraper, which can automatically detect the bottom of a tap water sedimentation tank and can automatically adjust the height of a mud scraping rake, so that the practicability of the lifting device of the travelling mud scraper is enhanced. Comprising a mud scraper shell, two handles, a control mainboard and a remote control device, a cover plate assembly is arranged at the top end of the mud scraper shell, two hinged mud scraping rakes are arranged at the bottom end of the mud scraper shell, the front ends of the two mud scraping rakes are connected with the handles respectively, a cavity is formed in the mud scraper shell, and an extension assembly and a lifting assembly are arranged in the cavity; a sensor assembly is arranged at the bottom end of the extension assembly, the rear end of the cavity is connected with the control mainboard, and the bottom end of the cavity is connected with the remote control device.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for traveling scrapers, and in particular to a lifting device for a traveling scraper. Background Technology

[0002] As is well known, traveling scrapers are indispensable equipment in the wastewater treatment industry, mainly used to remove sediment from the bottom of horizontal flow sedimentation tanks. However, in the use of existing traveling scrapers, it has been found that the lifting and lowering of the scraper rakes of traditional traveling scrapers mostly rely on manual or semi-automatic control. This method is cumbersome to operate, inefficient, and makes it difficult to achieve precise lifting and lowering control, affecting the scraping effect. Furthermore, the inconvenience of manual lifting and lowering increases maintenance time and cost when the scraper rakes are regularly inspected and replaced, reducing the availability of the equipment and thus its practicality is poor. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a lifting device for a traveling sludge scraper that can automatically detect the bottom of a tap water sedimentation tank and automatically adjust the height of the sludge scraper rake, thereby enhancing the practicality of the traveling sludge scraper.

[0004] The lifting device of the overhead scraper of this utility model includes a scraper housing, two sets of handles, a control main board and a remote control device. The top of the scraper housing is provided with a cover plate assembly, and the bottom of the scraper housing is provided with two sets of hinged scraper rakes. The front ends of the two sets of scraper rakes are respectively connected to the handles. A chamber is provided in the scraper housing, and an extension assembly and a lifting assembly are provided in the chamber. A sensor assembly is provided at the bottom of the extension assembly. The rear end of the chamber is connected to the control main board, and the bottom end of the chamber is connected to the remote control device.

[0005] Preferably, the lifting assembly includes a support block, a bidirectional motor, two sets of first rotating rods, and two sets of first take-up reels. The bottom end of the chamber is connected to the support block, the top end of the support block is connected to the bidirectional motor, the two output ends of the bidirectional motor are respectively connected to the first rotating rods, the outer ends of the two sets of first rotating rods are respectively connected to the first take-up reels, the bottom end of the chamber is connected to two sets of fixed blocks, the top ends of the two sets of fixed blocks are respectively provided with two sets of locking slots, the two sets of first take-up reels are respectively slidably locked into the two sets of locking slots, the two sets of first take-up reels are respectively wound with first steel wire ropes, the rear end of the chamber is respectively provided with two sets of through openings, the middle of the two sets of through openings is respectively provided with rotating rods connected by bearings, the two sets of rotating rods are respectively provided with first pulleys, and the two sets of first steel wire ropes are respectively wound and fixed to the two sets of handles through the first pulleys.

[0006] Preferably, two sets of steel ball assemblies are respectively provided on the outer wall of the two sets of take-up reels.

[0007] Preferably, the elongation assembly includes a first sleeve, a second sleeve, a first limiting block, a first cover plate, four sets of first screws, an extension rod, a second limiting block, a second cover plate, four sets of second screws, and a second steel wire rope. A first through-hole is provided at the bottom of the chamber, and the first through-hole is fitted into the first sleeve. A first groove is provided at the bottom of the first sleeve. The top of the second sleeve is connected to the first limiting block, and the first limiting block and the first groove are slidably fitted together. Four sets of first threaded holes are provided at the bottom of the first sleeve. A first through-hole is provided at the bottom of the first cover plate. The four sets of first screws are threadedly connected to the first threaded holes through the first through-holes. A second through-hole is provided at the top of the first cover plate, and the second through-hole is slidably fitted into the second sleeve. The bottom of the second sleeve... The system includes a second slide groove, a second slide groove, an extension column whose top end is connected to a second limit block, a second limit block that slides within the second slide groove, a second sleeve with four sets of second threaded holes at its bottom end, a second cover plate with four sets of second through holes at its bottom end, four sets of second screws that are threadedly connected to the second threaded holes through the second through holes, springs in the first and second slide grooves, a second limit block whose top end is connected to a second wire rope, a third through hole in the top end of the second sleeve, the top end of the first limit block, and the top end of the first sleeve, and a second wire rope that passes through the three sets of third through holes, a fixed rod whose front and rear ends are connected to a chamber bearing, a second pulley on the fixed rod, and a second wire rope wound around a take-up reel assembly.

[0008] Preferably, the take-up reel assembly includes a support platform, a servo motor, and a second take-up reel. The bottom end of the chamber is connected to the support platform, the top end of the support platform is connected to the servo motor, the output end of the servo motor is connected to the second take-up reel, and the second wire rope passes around the second pulley and is wound and fixed to the second take-up reel.

[0009] Preferably, the sensor assembly includes a sealed box, a touch sensor, a third cover plate, and four sets of fourth screws. The bottom end of the extension rod is connected to the sealed box. The bottom end of the sealed box is provided with a placement groove, and the top end of the placement groove is connected to the touch sensor. The bottom end of the sealed box is provided with four sets of fixing threaded holes, and the bottom end of the third cover plate is provided with four sets of fixing through holes. The four sets of fourth screws are respectively threadedly connected to the fixing threaded holes through the fixing through holes. The output end of the touch sensor is sealed through the third cover plate, and a first sealing ring is provided on the outer wall of the output end of the touch sensor.

[0010] Preferably, the cover plate assembly includes three sets of fourth cover plates and twelve sets of fifth screws. The top of the sludge scraper is provided with three sets of maintenance ports, the top of the three sets of maintenance ports is provided with hidden grooves, the top of the three sets of hidden grooves is provided with four sets of installation threaded holes, the top of the three sets of fourth cover plates is provided with four sets of installation through holes, and the twelve sets of fifth screws are threadedly connected to the installation threaded holes through the installation through holes.

[0011] Preferably, the bottom ends of the first limiting block and the second limiting block are respectively provided with a second sealing ring, the top ends of the first cover plate and the second cover plate are respectively provided with a third sealing ring, and the top end of the third cover plate is provided with a fourth sealing ring.

[0012] Compared with existing technologies, the advantages of this utility model are as follows: By introducing a bidirectional motor-driven lifting component and a sensor-equipped extension component, this utility model can automatically detect the bottom condition of the sedimentation tank and automatically adjust the height of the scraper rake according to the actual situation, avoiding the cumbersome operation and low efficiency of traditional manual or semi-automatic control methods. At the same time, by using a combination of wire rope, pulley, and take-up reel, along with a second take-up reel controlled by a servo motor, precise control of the scraper rake's lifting and lowering is ensured, enhancing the scraping effect. In addition, the addition of the sensor component enables the equipment to monitor the tank bottom condition in real time and provide timely feedback, facilitating maintenance and management. In the overall design, multiple sealing structures (such as the first to fourth sealing rings) are used to effectively prevent sewage intrusion and ensure the long-term stable operation of the equipment. Through automation and intelligent upgrades, the practicality, reliability, and maintenance convenience of the traveling scraper are greatly improved, reducing labor costs and increasing sewage treatment efficiency, thereby enhancing its practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the connection structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the connection structure between the support platform and the servo motor of this utility model;

[0015] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0016] Figure 4 This is a partially enlarged structural diagram of part A of this utility model;

[0017] Figure 5 This is a partial enlarged structural diagram of the present invention (B).

[0018] Figure 6 This is a partially enlarged structural diagram of the present invention (C).

[0019] The attached diagram shows the following components: 1. Scraper housing; 2. Scraper rake; 3. Handle; 4. Chamber; 5. Control main board; 6. Remote control device; 7. Support block; 8. Bidirectional motor; 9. First rotating rod; 10. First take-up reel; 11. Fixing block; 12. First wire rope; 13. Rotating rod; 14. First pulley; 15. Steel ball assembly; 16. First sleeve; 17. Second sleeve; 18. First limiting block; 19. First cover plate; 20. First screw; 21. Second limiting block. 21. Block; 22. Extension column; 23. Second screw; 24. Spring; 25. Second wire rope; 26. Fixing rod; 27. Second pulley; 28. Support platform; 29. ​​Servo motor box; 30. Second take-up reel; 31. Sealing box; 32. Touch sensor; 33. Third cover plate; 34. Fourth screw; 35. First sealing ring; 36. Fourth cover plate; 37. Fifth screw; 38. Second sealing ring; 39. Third sealing ring; 40. Fourth sealing ring; 41. Second cover plate. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] like Figures 1 to 6 As shown, the lifting device of the traveling scraper of this utility model includes a scraper housing 1, two sets of handles 3, a control main board 5, and a remote control device 6. A cover plate assembly is provided at the top of the scraper housing 1, and two sets of hinged scraper rakes 2 are provided at the bottom of the scraper housing 1. The rear ends of the two sets of scraper rakes 2 are respectively connected to the handles 3. A chamber 4 is provided inside the scraper housing 1, and an extension assembly and a lifting assembly are provided in the chamber 4. A sensor assembly is provided at the bottom of the extension assembly. The rear end of the chamber 4 is connected to the control main board 5, and the bottom end of the chamber 4 is connected to the remote control device 6. This utility model, by introducing a bidirectional motor-driven lifting assembly and a sensor-equipped extension assembly, can automatically detect the condition of the bottom of the sedimentation tank and automatically adjust the height of the scraper rakes according to the actual situation. This design avoids the cumbersome and inefficient operation problems of traditional manual or semi-automatic control methods. Furthermore, by employing a combination of wire rope, pulleys, and a take-up reel, along with a servo motor-controlled second take-up reel, precise control of the scraper's lifting and lowering is ensured, enhancing the scraping effect. In addition, the addition of sensor components allows the equipment to monitor the pool bottom status in real time, providing timely feedback for easier maintenance and management. The overall design incorporates multiple sealing structures (such as the first to fourth sealing rings) to effectively prevent sewage intrusion and ensure long-term stable operation. Through these automation and intelligent upgrades, the practicality, reliability, and ease of maintenance of the traveling scraper are greatly improved, reducing labor costs and increasing sewage treatment efficiency, thus enhancing its usability.

[0022] In a preferred embodiment, the lifting assembly includes a support block 7, a bidirectional motor 8, two sets of first rotating rods 9, and two sets of first take-up reels 10. The bottom end of the chamber 4 is connected to the support block 7, the top end of the support block 7 is connected to the bidirectional motor 8, the two output ends of the bidirectional motor 8 are respectively connected to the first rotating rods 9, the outer ends of the two sets of first rotating rods 9 are respectively connected to the first take-up reels 10, the bottom end of the chamber 4 is connected to two sets of fixing blocks 11, the top ends of the two sets of fixing blocks 11 are respectively provided with two sets of locking slots, the two sets of first take-up reels 10 are respectively slidably locked into the two sets of locking slots, and first wire ropes 12 are wound on the two sets of first take-up reels 10 respectively. The rear end of component 4 is provided with two sets of through-holes, and the middle of each of the two sets of through-holes is provided with a rotating rod 13 connected by a bearing. The two sets of rotating rods 13 are respectively provided with first pulleys 14. The two sets of first steel wire ropes 12 are respectively wound and fixed to the two sets of handles 3 through the first pulleys 14. The lifting component includes a support block, a bidirectional motor, two sets of first rotating rods and two sets of first take-up wheels. The bottom end of the support block is connected to the bidirectional motor, and the output end of the motor is connected to the first rotating rod. The outer end of the first rotating rod is connected to the first take-up wheel. The first take-up wheel is wound with a first steel wire rope, which is connected to the handle through the first pulley to realize the lifting control of the mud scraper, thereby enhancing its practicality.

[0023] As a preferred embodiment of the above, two sets of steel ball assemblies 15 are respectively provided on the outer walls of the two sets of take-up reels; in the traveling scraper, the steel ball assemblies are provided on the outer walls of the two sets of take-up reels to reduce friction, improve the smoothness of taking up and releasing the wire rope, and thus enhance practicality.

[0024] As a preferred embodiment of the above embodiment, the elongation assembly includes a first sleeve 16, a second sleeve 17, a first limiting block 18, a first cover plate 19, four sets of first screws 20, an extension rod, a second limiting block 21, a second cover plate 41, four sets of second screws 23, and a second steel wire rope 25. A first through-hole is provided at the bottom of the chamber 4, and the first through-hole is fitted into the first sleeve 16. A first sliding groove is provided at the bottom of the first sleeve 16. The top of the second sleeve 17 is connected to the first limiting block 18. The first sleeve 16 is slidably fitted with the first slide groove. The bottom end of the first sleeve 16 has four sets of first threaded holes, and the bottom end of the first cover plate 19 has a first through hole. Four sets of first screws 20 are threadedly connected to the first threaded holes through the first through holes. The top end of the first cover plate 19 has a second through opening, which is slidably fitted with the second sleeve 17. The bottom end of the second sleeve 17 has a second slide groove. The top end of the extension column 22 is connected to a second limit block. The second limit block 21 is slidably fitted with the second slide groove. The bottom end of the sleeve 17 is provided with four sets of second threaded holes, and the bottom end of the second cover plate 41 is provided with four sets of second through holes. The four sets of second screws 23 are respectively threaded through the second through holes and the second threaded holes. Springs 24 are respectively provided in the first slide groove and the second slide groove. The top end of the second limiting block 21 is connected to the second wire rope 25. The top end of the second sleeve 17, the top end of the first limiting block 18, and the top end of the first sleeve 16 are respectively provided with third through holes. The second wire rope 25 passes through three sets of third through holes respectively. The front and rear ends of the fixed rod 26 are respectively connected to the bearings of the chamber 4. The fixed rod 26 is equipped with a second pulley 27. The second steel wire rope 25 is wound on the take-up wheel assembly. The extension assembly includes a first sleeve, a second sleeve, a first limiting block, a first cover plate, four sets of first screws, an extension rod, a second limiting block, a second cover plate, four sets of second screws, and a second steel wire rope. Through the sliding and fixed connection between the components, the extension rod can automatically extend and retract, thereby driving the sensor assembly to perform pool bottom detection, thus enhancing practicality.

[0025] As a preferred embodiment of the above, the take-up reel assembly includes a support platform 28, a servo motor housing 29, and a second take-up reel 30. The bottom end of the chamber 4 is connected to the support platform 28, the top end of the support platform 28 is connected to the servo motor, the output end of the servo motor is connected to the second take-up reel 30, and the second wire rope 25 passes around the second pulley 27 and is wound and fixed to the second take-up reel 30. The take-up reel assembly includes a support platform, a servo motor, and a second take-up reel. The servo motor precisely controls the winding and unwinding of the second wire rope, thereby achieving precise movement of the extension rod and enhancing practicality.

[0026] As a preferred embodiment of the above, the sensor assembly includes a sealed box 31, a touch sensor 32, a third cover plate 33, and four sets of fourth screws 34. The bottom end of the extension rod is connected to the sealed box 31. The bottom end of the sealed box 31 is provided with a placement groove, and the top end of the placement groove is connected to the touch sensor 32. The bottom end of the sealed box 31 is provided with four sets of fixing threaded holes, and the bottom end of the third cover plate 33 is provided with four sets of fixing through holes. The four sets of fourth screws 34 are respectively threadedly connected to the fixing threaded holes through the fixing through holes. The output end of the touch sensor 32 is sealed through the third cover plate 33, and a first sealing ring 35 is provided on the outer wall of the output end of the touch sensor 32. The sensor assembly includes a sealed box, a touch sensor, a third cover plate, and four sets of fourth screws. The touch sensor is used to detect the condition of the pool bottom. The first sealing ring protects the sensor and ensures its normal operation in harsh environments, thereby enhancing its practicality.

[0027] As a preferred embodiment of the above, the cover plate assembly includes three sets of fourth cover plates 36 and twelve sets of fifth screws 37. The top of the sludge scraper is provided with three sets of maintenance ports, the top of the three sets of maintenance ports is provided with hidden grooves, the top of the three sets of hidden grooves is provided with four sets of mounting threaded holes, the top of the three sets of fourth cover plates 36 is provided with four sets of mounting through holes, and the twelve sets of fifth screws 37 are threadedly connected to the mounting threaded holes through the mounting through holes. The cover plate assembly, including three sets of fourth cover plates and twelve sets of fifth screws, is used to close the maintenance ports on the top of the sludge scraper, which facilitates the maintenance and repair of the equipment and thus enhances its practicality.

[0028] As a preferred embodiment of the above, the bottom ends of the first limiting block 18 and the second limiting block 21 are respectively provided with second sealing rings 38, the top ends of the first cover plate 19 and the second cover plate 41 are respectively provided with third sealing rings 39, and the top end of the third cover plate 33 is provided with a fourth sealing ring 40. The sealing between the first sleeve, the second sleeve and the first cover plate and the second cover plate can be enhanced by the two sets of second sealing rings and the two sets of third sealing rings, and the sealing between the third cover plate and the sealing box can be enhanced by the fourth sealing ring, thereby enhancing practicality.

[0029] The lifting device of this utility model for a traveling scraper operates as follows: First, the device is installed on the main body of the traveling scraper. Then, when scraping sludge from a water tank, the control board starts the servo motor. The servo motor then drives the second take-up reel to rotate forward, releasing the second wire rope. The second wire rope then moves along the second pulley into the first and second sleeves. Two sets of springs then move the second sleeve and extension rod downwards, and the first and second limit blocks limit their movement. When the output of the touch sensor in the sealed box contacts the device, the control board records data. The servo motor then rotates in the opposite direction, winding the second wire rope back onto the second take-up reel along the second pulley. During take-up, the extension rod moves upwards, and then, through sealing and limiting, it... The second sleeve moves into the first sleeve to retrieve the extension rod and the second sleeve. Based on data recorded by the control board, the bidirectional motor starts, driving two sets of first take-up reels to rotate, releasing the two sets of first wire ropes outwards. As the first wire rope wound around the handle extends, the two articulated scraper rakes move downwards. The bidirectional motor stops when it reaches the recorded position, and the upper-level device moves and scrapes the sludge from the bottom of the pool. The servo motor then performs another detection and recording of the sealing box's descent. The bidirectional motor then releases the first wire rope again, and the upper-level device performs a second sludge scraping. When the control board reaches the same depth twice, both motors reverse, retrieving all three sets of wire ropes. The upper-level device then moves the scraper to a suitable position, awaiting the next pool bottom cleaning.

[0030] The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used in this article are for illustrative purposes only.

[0031] In this utility model, the terms "first," "second," and "third" do not represent a specific quantity or order, but are merely used to distinguish names.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A lifting device for a traveling scraper, characterized in that, The device includes a sludge scraper housing (1), two sets of handles (3), a control motherboard (5), and a remote control device (6). The top of the sludge scraper housing (1) is provided with a cover plate assembly, and the bottom of the sludge scraper housing (1) is provided with two sets of hinged sludge scraper rakes (2). The front ends of the two sets of sludge scraper rakes (2) are respectively connected to the handles (3). The sludge scraper housing (1) is provided with a chamber (4), and the chamber (4) is provided with an extension assembly and a lifting assembly. The bottom end of the extension assembly is provided with a sensor assembly. The rear end of the chamber (4) is connected to the control motherboard (5), and the bottom end of the chamber (4) is connected to the remote control device (6).

2. The lifting device of the traveling scraper as described in claim 1, characterized in that, The lifting assembly includes a support block (7), a bidirectional motor (8), two sets of first rotating rods (9), and two sets of first take-up reels (10). The bottom end of the chamber (4) is connected to the support block (7), the top end of the support block (7) is connected to the bidirectional motor (8), the two output ends of the bidirectional motor (8) are respectively connected to the first rotating rods (9), the outer ends of the two sets of first rotating rods (9) are respectively connected to the first take-up reels (10), the bottom end of the chamber (4) is connected to two sets of fixed blocks (11), and the two sets of fixed blocks (11) are... Two sets of locking slots are provided at the top, and two sets of first take-up wheels (10) are slidably locked into the two sets of locking slots respectively. A first steel wire rope (12) is wound on the two sets of first take-up wheels (10). Two sets of through holes are provided at the rear end of the chamber (4). A rotating rod (13) connected by a bearing is provided in the middle of the two sets of through holes. A first pulley (14) is provided on the two sets of rotating rods (13). The two sets of first steel wire ropes (12) are wound and fixed to the two sets of handles (3) through the first pulleys (14).

3. The lifting device of the traveling scraper as described in claim 2, characterized in that, Two sets of steel ball assemblies (15) are respectively provided on the outer wall of the two sets of take-up reels.

4. The lifting device of the traveling scraper as described in claim 3, characterized in that, The elongation assembly includes a first sleeve (16), a second sleeve (17), a first limiting block (18), a first cover plate (19), four sets of first screws (20), an elongation rod, a second limiting block (21), a second cover plate (41), four sets of second screws (23), and a second steel wire rope (25). A first through-hole is provided at the bottom of the chamber (4), and the first through-hole is fitted into the first sleeve (16). A first sliding groove is provided at the bottom of the first sleeve (16). The top of the second sleeve (17) is connected to the first limiting block (18), and the first limiting block (18) slides within the first sliding groove. Four sets of first threaded holes are provided at the bottom of the first sleeve (16). A first through-hole is provided at the bottom of the first cover plate (19). Four sets of first screws (20) are threadedly connected to the first threaded holes through the first through-holes. A second through-hole is provided at the top of the first cover plate (19), and the second through-hole slides within the second sleeve (17). The bottom end of the second sleeve (17) is provided with a second sliding groove. The top end of the extension column (22) is connected to the second limit. The second limit block (21) slides and fits in the second sliding groove. The bottom end of the second sleeve (17) is provided with four sets of second threaded holes. The bottom end of the second cover plate (41) is provided with four sets of second through holes. The four sets of second screws (23) are threadedly connected to the second threaded holes through the second through holes. Springs (24) are provided in the first sliding groove and the second sliding groove respectively. The top of the limiting block (21) is connected to the second wire rope (25). The top of the second sleeve (17), the top of the first limiting block (18), and the top of the first sleeve (16) are respectively provided with a third through hole. The second wire rope (25) passes through the three sets of third through holes respectively. The front end and the rear end of the fixing rod (26) are respectively connected to the bearing of the chamber (4). The fixing rod (26) is provided with a second pulley (27). The second wire rope (25) is wound on the take-up reel assembly.

5. The lifting device of the traveling scraper as described in claim 4, characterized in that, The take-up reel assembly includes a support platform (28), a servo motor box (29), and a second take-up reel (30). The bottom end of the chamber (4) is connected to the support platform (28), the top end of the support platform (28) is connected to the servo motor, the output end of the servo motor is connected to the second take-up reel (30), and the second wire rope (25) passes around the second pulley (27) and is wound and fixed to the second take-up reel (30).

6. The lifting device of the traveling scraper as described in claim 5, characterized in that, The sensor assembly includes a sealed box (31), a touch sensor (32), a third cover plate (33), and four sets of fourth screws (34). The bottom end of the extension rod is connected to the sealed box (31). The bottom end of the sealed box (31) is provided with a placement groove, and the top end of the placement groove is connected to the touch sensor (32). The bottom end of the sealed box (31) is provided with four sets of fixing threaded holes, and the bottom end of the third cover plate (33) is provided with four sets of fixing through holes. The four sets of fourth screws (34) are respectively threadedly connected to the fixing threaded holes through the fixing through holes. The output end of the touch sensor (32) is sealed through the third cover plate (33), and a first sealing ring (35) is provided on the outer wall of the output end of the touch sensor (32).

7. The lifting device of the traveling scraper as described in claim 6, characterized in that, The cover plate assembly includes three sets of fourth cover plates (36) and twelve sets of fifth screws (37). The top of the sludge scraper is provided with three sets of maintenance ports, the top of the three sets of maintenance ports is provided with hidden grooves, the top of the three sets of hidden grooves is provided with four sets of installation threaded holes, the top of the three sets of fourth cover plates (36) is provided with four sets of installation through holes, and the twelve sets of fifth screws (37) are threadedly connected to the installation threaded holes through the installation through holes.

8. The lifting device of the traveling scraper as described in claim 7, characterized in that, The bottom ends of the first limiting block (18) and the second limiting block (21) are respectively provided with a second sealing ring (38), the top ends of the first cover plate (19) and the second cover plate (41) are respectively provided with a third sealing ring (39), and the top end of the third cover plate (33) is provided with a fourth sealing ring (40).

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