Building construction template waste removing device

Abstract

The invention discloses a building construction template waste removing device, and particularly relates to the technical field of building construction.The building construction template waste removing device comprises two supporting frames, the two supporting frames are jointly and fixedly connected with a cleaning box, the front portion and the rear portion of the cleaning box are both fixedly connected with plate conveying mechanisms, and the lower end of the cleaning box is fixedly connected with a water storage box; a washing assembly is fixedly connected to the rear side of the middle of the upper end of the cleaning box, and scraping mechanisms are fixedly connected to the left end and the right end of the cleaning box correspondingly. According to the building construction formwork waste removing device, formworks with different sizes and thicknesses can be automatically adapted to and stably fed into the cleaning box to be cleaned through the arranged plate feeding mechanism, extra adjustment or component replacement is not needed, and the formworks needing to be cleaned only need to be put into the cleaning box from the front portion of the cleaning box; therefore, the conveying and cleaning work can be automatically completed, the operation process is simplified, the operation difficulty is reduced, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a waste removal device for building construction formwork. Background Technology

[0002] In the construction industry, formwork, as an important tool for concrete pouring and shaping, is widely used in the construction of various building structures. During use, a large amount of concrete waste, mortar residue, and other impurities adhere to the surface of the formwork. If these wastes are not removed in a timely and effective manner, it will not only affect the reuse of the formwork and lead to a decline in the quality of concrete forming, resulting in problems such as uneven surfaces and honeycomb pitting, but it will also shorten the service life of the formwork and increase construction costs.

[0003] Traditional methods for removing construction formwork waste mainly rely on manual labor. Workers use shovels, brushes, and other tools to clean the formwork surface piece by piece. This method has many drawbacks: firstly, manual cleaning is inefficient, requiring a lot of manpower and time; secondly, the quality of manual cleaning is difficult to guarantee, as inconsistent force and methods among workers may result in incomplete cleaning of the formwork surface, and residual waste may affect the quality of subsequent concrete pouring.

[0004] Meanwhile, with the development of the construction industry and technological advancements, some mechanized formwork waste removal equipment has emerged in the market. While these devices have improved cleaning efficiency and quality to some extent, they still have some shortcomings. Currently, most existing formwork waste removal equipment can typically only clean one side of the formwork. When cleaning the other side, manual flipping of the formwork is required, which not only increases the labor intensity of workers but also reduces cleaning efficiency and can easily cause secondary damage to the formwork during the flipping process.

[0005] Furthermore, existing formwork waste removal equipment also has limitations in conveying formwork. Different construction projects use formwork of varying sizes and thicknesses, and existing equipment often only accommodates formwork of specific sizes and thicknesses, lacking versatility. When encountering formwork of different sizes and thicknesses, it is necessary to replace the corresponding conveying device or make complex adjustments to the equipment. This not only increases the operating costs and maintenance difficulty of the equipment but also affects its applicability and efficiency.

[0006] Therefore, a waste removal device for construction formwork is needed. Summary of the Invention

[0007] The main objective of this invention is to provide a construction formwork waste removal device that can effectively solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A construction formwork waste removal device includes two support frames, both of which are fixedly connected to a cleaning tank. A feeding mechanism is fixedly connected to the front and rear of the cleaning tank. A water storage tank is fixedly connected to the lower end of the cleaning tank. A flushing assembly is fixedly connected to the rear side of the upper middle part of the cleaning tank. A scraping mechanism is fixedly connected to the left and right ends of the cleaning tank. A water baffle is fixedly connected to the left and right walls of the front and rear inner cavities of the cleaning tank. Several rollers are rotatably connected in a rectangular arrangement to the bottom wall of the inner cavity of the cleaning tank. Two guide assemblies are symmetrically distributed and fixedly connected to the left and right walls of the middle part of the inner cavity of the cleaning tank.

[0009] Preferably, the feeding mechanism includes two support blocks, a dual-axis motor, and several rolling components. The two support blocks are fixedly connected to the upper left and right sides of the cleaning tank, respectively. Rotating rods are rotatably connected inside each of the two support blocks. The dual-axis motor is fixedly connected to the front side of the middle of the upper part of the support frame. Gear sets are fixedly connected to the ends of the two rotating rods that are far apart from each other. Each gear set consists of two meshing bevel gears. Rotating shafts are fixedly connected to the lower ends of the two horizontal bevel gears. Several rolling components are fixedly connected to the upper and lower parts of the left end and the upper and lower parts of the right end of the cleaning tank, respectively.

[0010] Preferably, the rolling assembly includes a fixed box and a support box. The fixed box is fixedly connected to the upper right front side of the outer surface of the cleaning tank. One end of the fixed box near the cleaning tank extends through the outer surface of the cleaning tank on the same side to the outside. The support box is fixedly connected to the upper right front side of the cleaning tank. Two springs are fixedly connected to the right wall of the inner cavity of the fixed box. The left ends of the two springs are jointly fixedly connected to a slider. A rubber roller is fixedly installed on the left end of the slider. A tension spring is fixedly connected to the rear wall of the inner cavity of the support box. A slider is fixedly connected to the front end of the tension spring. A fixing plate is fixedly connected to the upper right side of the fixed box. A pulley assembly is fixedly connected to the upper end of the rubber roller, the middle part of the fixing plate, and the front part of the slider.

[0011] Preferably, the first slider is slidably connected to the inner cavity of the fixed box, the second slider is slidably connected to the inner cavity of the support box, and the pulley assembly consists of three pulleys and one belt.

[0012] Preferably, the flushing assembly includes a water storage tank, which is fixedly connected to the rear side of the upper middle part of the cleaning tank. A water pump is fixedly connected to the lower front part of the water storage tank. The output end of the water pump is fixedly connected to two L-shaped pipes through a T-connector. Several high-pressure nozzles are fixedly connected at intervals on the side of the vertical part of the two L-shaped pipes that are close to each other. The side of the several high-pressure nozzles on the left and the several high-pressure nozzles on the right both extend through the outer surface of the cleaning tank on the same side to the outside.

[0013] Preferably, the guide assembly includes several fixed tubes, which are symmetrically distributed and fixedly connected to the left and right walls of the inner cavity of the cleaning tank. Each of the fixed tubes has a spring II fixedly connected to its inner cavity. The two spring IIs on the left and the two spring IIs on the right are fixedly connected to each other at their close ends. The sliding columns are slidably connected to the inner cavity of the fixed tubes on the same side. Rubber wheels are fixedly installed at the close ends of the two sliding columns on the left and the two sliding columns on the right.

[0014] Preferably, the scraping mechanism includes two telescopic cylinders, which are respectively fixedly connected to the rear side of the middle of the left end and the rear side of the middle of the right end of the cleaning tank. The output ends of the two telescopic cylinders extend through the outer surface of the cleaning tank on the same side and are fixedly connected to scrapers. The upper and lower parts of the two scrapers that are far apart from each other are fixedly connected to telescopic rods.

[0015] Preferably, the left ends of the two telescopic rods on the left side are fixedly connected to the left wall of the inner cavity of the cleaning tank, and the right ends of the two telescopic rods on the right side are fixedly connected to the right wall of the inner cavity of the cleaning tank. The ends of the two scrapers that are close to each other are both curved.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. During use, the present invention can automatically adapt to templates of different sizes and thicknesses through the set plate feeding mechanism and stably feed them into the cleaning box for cleaning. No additional adjustments or replacement of parts are required. Simply put the template to be cleaned into the front of the cleaning box, and the conveying and cleaning work can be completed automatically. This simplifies the operation process, reduces the difficulty of operation, and effectively improves work efficiency.

[0017] 2. During use, the present invention can complete the cleaning of both sides of the template in one go through the flushing component and scraping mechanism, without the need for manual flipping, which greatly shortens the cleaning time of a single template, significantly reduces labor costs, and thus significantly improves the overall cleaning efficiency, ensuring that the construction progress is not affected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cleaning tank structure of the present invention; Figure 3 This is a schematic cross-sectional view of the cleaning tank structure of the present invention; Figure 4 This is a schematic cross-sectional view of the plate feeding mechanism of the present invention; Figure 5 This is a schematic cross-sectional view of the rolling component structure of the present invention; Figure 6 This is a schematic cross-sectional view of the flushing component of the present invention; Figure 7 This is a schematic cross-sectional view of the guide component of the present invention; Figure 8 This is a schematic cross-sectional view of the scraping mechanism of the present invention; Figure 9 This is a schematic diagram of the overall structure of the present invention from another perspective.

[0019] In the diagram: 1. Support frame; 2. Cleaning tank; 3. Water tank; 4. Plate feeding mechanism; 41. Dual-axis motor; 42. Rolling assembly; 421. Fixing box; 422. Slider 1; 423. Spring 1; 424. Rubber roller; 425. Pulley assembly; 426. Fixing plate; 427. Support box; 428. Slider 2; 429. Tension spring; 43. Support block; 44. Rotating rod; 45. Gear set; 46. Rotating shaft; 5. Flushing assembly; 51. Water tank; 52. Water pump; 53. L-shaped pipe; 54. High-pressure nozzle; 6. Scraping mechanism; 61. Telescopic cylinder; 62. Telescopic rod; 63. Scraper; 7. Guide assembly; 71. Fixing pipe; 72. Sliding column; 73. Spring 2; 74. Rubber wheel; 8. Water baffle; 9. Roller. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] Example 1, as Figures 1 to 9 As shown, a construction formwork waste removal device includes two support frames 1, with a cleaning tank 2 fixedly connected to both support frames 1. A feeding mechanism 4 is fixedly connected to the front and rear of the cleaning tank 2. A water storage tank 3 is fixedly connected to the lower end of the cleaning tank 2. A flushing assembly 5 is fixedly connected to the rear side of the upper middle part of the cleaning tank 2. A scraping mechanism 6 is fixedly connected to the left and right ends of the cleaning tank 2. A water storage tank 3 is fixedly connected to the lower end of the cleaning tank 2. Water baffles 8 are fixedly connected to the left and right walls of the front and rear inner cavities of the cleaning tank 2. Several rollers 9 are rotatably connected in a rectangular arrangement to the bottom wall of the inner cavity of the cleaning tank 2. Two guide assemblies 7 are symmetrically distributed and fixedly connected to the left and right walls of the middle part of the inner cavity of the cleaning tank 2.

[0022] In the specific implementation of this invention, the operator first fills the water tank 3 with water, then activates the internal drive structure of the two plate feeding mechanisms 4 to drive their internal structure. Next, the template to be cleaned is fed into the inner cavity of the cleaning tank 2 through the inlet hole at the front end. Under the action of the internal structure of the plate feeding mechanism 4, the template is stably conveyed backward on several rollers 9. The internal structure of the plate feeding mechanism 4 can convey templates of different sizes and thicknesses backward, ensuring that its internal structure always adheres tightly to the template surface. When the template is conveyed backward past the two front baffles 8, the internal drive structure of the flushing assembly 5 is activated, causing the internal structure of the flushing assembly 5 to perform high-pressure flushing on both sides of the slowly moving template. It can quickly and effectively remove most of the waste material from the template surface. At the same time, the water after rinsing flows into the water storage tank 3 through the gaps between the rollers 9 for collection and storage. Then, when the template moves to the middle of the inner cavity of the cleaning tank 2, the template comes into contact with the guide component 7. Under the action of the guide component 7, the template is clamped and rolled backward, so that the template is always in a vertical state and is stably conveyed backward. Then, when the template moves between the baffles 8, the two baffles 8 are activated to drive their internal structure to approach the template. Under the action of the internal structure of the baffles 8, stubborn residues are scraped off, ensuring that the cleanliness of the template surface reaches a high standard. Then, the rear feeding mechanism 4 drives the cleaned template to be conveyed backward to the outside.

[0023] Example 2: In order to achieve the purpose of conveying templates of different sizes and thicknesses, refer to... Figure 4 and Figure 5 In this scheme, the feeding mechanism 4 includes two support blocks 43, a dual-axis motor 41, and several rolling components 42. The two support blocks 43 are fixedly connected to the upper left and right sides of the cleaning tank 2, respectively. Rotating rods 44 are rotatably connected inside the two support blocks 43. The dual-axis motor 41 is fixedly connected to the front side of the middle of the upper part of the support frame 1. Gear sets 45 are fixedly connected to the ends of the two rotating rods 44 that are far apart from each other. The two gear sets 45 are composed of two meshing bevel gears. The lower ends of the two horizontal bevel gears are fixedly connected to rotating shafts 46. Several rolling components 42 are fixedly connected to the upper and lower parts of the left end and the upper and lower parts of the right end of the cleaning tank 2, respectively.

[0024] In the above process, the dual-axis motor 41 is first started to drive the two rotating rods 44 to rotate synchronously. Then, the two rotating rods 44 rotate synchronously while driving the bevel gears on both sides. Then, the bevel gears rotate to drive the two rotating shafts 46 to rotate. While the two rotating shafts 46 rotate, the internal structures of the four rolling components 42 on the same side rotate simultaneously. Then, the template is fed in from the front of the cleaning tank 2. The template is conveyed backward while the internal structures of the rolling components 42 are running.

[0025] Specifically, in order to achieve the purpose of conveying templates, refer to Figure 5 In this solution, the rolling assembly 42 includes a fixed box 421 and a support box 427. The fixed box 421 is fixedly connected to the upper right front side of the outer surface of the cleaning tank 2. The end of the fixed box 421 near the cleaning tank 2 extends through the outer surface of the cleaning tank 2 on the same side to the outside. The support box 427 is fixedly connected to the upper right front side of the cleaning tank 2. Two springs 423 are fixedly connected to the right wall of the inner cavity of the fixed box 421. The left ends of the two springs 423 are fixedly connected to a slider 422. A rubber roller 424 is fixedly installed on the left end of the slider 422. A tension spring 429 is fixedly connected to the rear wall of the inner cavity of the support box 427. A slider 428 is fixedly connected to the front end of the tension spring 429. A fixed plate 426 is fixedly connected to the upper right side of the fixed box 421. A pulley assembly 425 is fixedly connected to the upper end of the rubber roller 424, the middle part of the fixed plate 426, and the front part of the slider 428.

[0026] Furthermore, the first slider 422 is slidably connected to the inner cavity of the fixed box 421, the second slider 428 is slidably connected to the inner cavity of the support box 427, and the pulley assembly 425 consists of three pulleys and one belt.

[0027] In the above process, the rotation of the shaft 46 simultaneously drives one of the pulleys inside the pulley assembly 425 on the same side to rotate. Then, under the action of belt one, all three pulleys rotate simultaneously, causing the rubber roller 424 to rotate. As the template is fed into the front end of the cleaning tank 2, the template surface contacts the surface of the rubber roller 424, and the two rubber rollers 424 on the same side clamp the template. As the rubber roller 424 rotates, it moves the template backward, simultaneously compressing the rubber roller 424 and pushing the slider one. 422 compresses the spring 423 into the inner cavity of the fixed box 421, simultaneously changing the position of the belt 1 inside the pulley assembly 425. Then, under the action of the tension spring 429, as the rubber roller 424 moves, the tension spring 429 pulls the slider 428 into the inner cavity of the support box 427, thereby ensuring that the slider 428 always keeps the belt 1 taut, preventing the rubber roller 424 from stopping rotating due to the belt 1 loosening. Then, under the action of the spring 423, the rubber roller 424 is always pushed to contact the template surface, thus maintaining a stable force for conveying the template.

[0028] Specifically, in order to achieve the purpose of flushing the template, refer to Figure 6In this solution, the flushing assembly 5 includes a water storage tank 51, which is fixedly connected to the rear side of the upper middle part of the cleaning tank 2. A water pump 52 is fixedly connected to the lower front part of the water storage tank 51. The output end of the water pump 52 is fixedly connected to two L-shaped pipes 53 through a three-way pipe. Several high-pressure nozzles 54 are fixedly connected at intervals on the side of the vertical part of the two L-shaped pipes 53 that are close to each other. The side of the several high-pressure nozzles 54 on the left and the several high-pressure nozzles 54 on the right both extend through the outer surface of the cleaning tank 2 on the same side to the outside.

[0029] In the above process, the operator first fills the water tank 51 with water. Then, when the template moves between the two L-shaped pipes 53, the water pump 52 is started. The water pumped out of the water tank 51 enters the two L-shaped pipes 53 through the T-connector. Then, the L-shaped pipes 53 supply water to several high-pressure nozzles 54 on both sides, so that the high-pressure nozzles 54 on both sides can rinse both sides of the template.

[0030] The specific installation method, circuit connection method, and control method of the water pump 52 used above are all conventional designs, and will not be described in detail in this invention.

[0031] Specifically, in order to ensure that the template can always move backward in a vertical position, refer to... Figure 7 In this solution, the guide assembly 7 includes several fixed tubes 71, which are symmetrically distributed and fixedly connected to the left and right walls of the inner cavity of the cleaning tank 2. Each of the fixed tubes 71 has a spring 73 fixedly connected to its inner cavity. The two springs 73 on the left and the two springs 73 on the right are fixedly connected to each other at their close ends. Each of the sliding columns 72 is slidably connected to the inner cavity of the fixed tubes 71 on the same side. The two sliding columns 72 on the left and the two sliding columns 72 on the right are fixedly installed with rubber wheels 74 at their close ends.

[0032] In the above process, when the template moves between the fixed tubes 71 on both sides, both sides of the template come into contact with the rubber wheel 74. Then, during the process of the template being conveyed backward, its surface is kept in contact with the rubber wheel 74 and the rubber wheel 74 rolls. Then, under the action of the set spring 73, the sliding column 72 is always pushed to drive the rubber wheel 74 to contact the template surface, so that the template always moves backward in a vertical direction in the middle of the inner cavity of the cleaning box 2.

[0033] Specifically, in order to achieve the purpose of scraping off the template, refer to Figure 8In this solution, the scraping mechanism 6 includes two telescopic cylinders 61. The two telescopic cylinders 61 are respectively fixedly connected to the rear side of the middle of the left end and the rear side of the middle of the right end of the cleaning tank 2. The output ends of the two telescopic cylinders 61 extend through the outer surface of the cleaning tank 2 on the same side and are fixedly connected to scrapers 63. The upper and lower ends of the two scrapers 63 that are far apart from each other are fixedly connected to telescopic rods 62.

[0034] Furthermore, the left ends of the two telescopic rods 62 on the left side are fixedly connected to the left wall of the inner cavity of the cleaning tank 2, and the right ends of the two telescopic rods 62 on the right side are fixedly connected to the right wall of the inner cavity of the cleaning tank 2. The ends of the two scrapers 63 that are close to each other are both curved.

[0035] In the above process, the template is moved between the two scrapers 63, and then the two telescopic cylinders 61 are activated to drive the two scrapers 63 to move closer to the template at the same time, so that the two scrapers 63 scrape the template surface to ensure that the cleanliness of the template surface reaches a high standard.

[0036] It should be noted that the specific installation method, circuit connection method, and control method of the telescopic cylinder 61 used in this invention are all conventional designs, and will not be described in detail in this invention.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A construction formwork waste removal device, comprising two support frames (1), characterized in that: The two support frames (1) are fixedly connected to a cleaning tank (2). The front and rear of the cleaning tank (2) are fixedly connected to a plate feeding mechanism (4). The lower end of the cleaning tank (2) is fixedly connected to a water storage tank (3). The upper middle rear side of the cleaning tank (2) is fixedly connected to a flushing assembly (5). The left and right ends of the cleaning tank (2) are fixedly connected to a scraping mechanism (6). The lower end of the cleaning tank (2) is fixedly connected to a water storage tank (3). The front left and right walls and the rear left and right walls of the inner cavity of the cleaning tank (2) are fixedly connected to baffles (8). The bottom wall of the inner cavity of the cleaning tank (2) is rectangularly distributed and rotatably connected to several rollers (9). The middle left and right walls of the inner cavity of the cleaning tank (2) are symmetrically distributed and fixedly connected to two guide assemblies (7).

2. The construction formwork waste removal device according to claim 1, characterized in that: The feeding mechanism (4) includes two support blocks (43), a dual-axis motor (41) and several rolling components (42). The two support blocks (43) are fixedly connected to the upper left and right sides of the cleaning tank (2) respectively. Rotating rods (44) are rotatably connected inside the two support blocks (43). The dual-axis motor (41) is fixedly connected to the front side of the middle of the upper part of the support frame (1). Gear sets (45) are fixedly connected to the ends of the two rotating rods (44) that are far apart from each other. The two gear sets (45) are composed of two meshing bevel gears. The lower ends of the two horizontal bevel gears are fixedly connected to rotating shafts (46). Several rolling components (42) are fixedly connected to the upper and lower parts of the left end and the upper and lower parts of the right end of the cleaning tank (2) respectively.

3. The construction formwork waste removal device according to claim 2, characterized in that: The rolling assembly (42) includes a fixed box (421) and a support box (427). The fixed box (421) is fixedly connected to the upper right front side of the outer surface of the cleaning tank (2). The end of the fixed box (421) near the cleaning tank (2) extends through the outer surface of the cleaning tank (2) on the same side to the outside. The support box (427) is fixedly connected to the upper right front side of the cleaning tank (2). Two springs (423) are fixedly connected to the right wall of the inner cavity of the fixed box (421). The left ends of the two springs (423) A slider (422) is fixedly connected to the support box (427). A rubber roller (424) is fixedly installed on the left end of the slider (422). A tension spring (429) is fixedly connected to the rear wall of the inner cavity of the support box (427). A slider (428) is fixedly connected to the front end of the tension spring (429). A fixing plate (426) is fixedly connected to the upper right end of the fixing box (421). A wheel assembly (425) is fixedly connected to the upper end of the rubber roller (424), the middle part of the fixing plate (426), and the front part of the slider (428).

4. The construction formwork waste removal device according to claim 3, characterized in that: The first slider (422) is slidably connected to the inner cavity of the fixed box (421), the second slider (428) is slidably connected to the inner cavity of the support box (427), and the pulley assembly (425) consists of three pulleys and one belt.

5. A construction formwork waste removal device according to claim 1, characterized in that: The flushing assembly (5) includes a water tank (51), which is fixedly connected to the rear side of the upper middle part of the cleaning tank (2). A water pump (52) is fixedly connected to the lower front end of the water tank (51). Two L-shaped pipes (53) are fixedly connected to the output end of the water pump (52) through a three-way pipe. Several high-pressure nozzles (54) are fixedly connected to each other on the side of the vertical part of the two L-shaped pipes (53) at intervals. Several high-pressure nozzles (54) located on the left and several high-pressure nozzles (54) located on the right both extend through the outer surface of the cleaning tank (2) on the same side to the outside.

6. The construction formwork waste removal device according to claim 1, characterized in that: The guide assembly (7) includes several fixed tubes (71), which are symmetrically distributed and fixedly connected to the left and right walls of the inner cavity of the cleaning tank (2). Each of the fixed tubes (71) has a spring (73) fixedly connected to its inner cavity. The two springs (73) on the left and the two springs (73) on the right are fixedly connected to each other at their close ends. The sliding columns (72) are slidably connected to the inner cavity of the fixed tubes (71) on the same side. The two sliding columns (72) on the left and the two sliding columns (72) on the right are fixedly installed with rubber wheels (74) at their close ends.

7. A construction formwork waste removal device according to claim 1, characterized in that: The scraping mechanism (6) includes two telescopic cylinders (61). The two telescopic cylinders (61) are fixedly connected to the rear side of the middle of the left end and the rear side of the middle of the right end of the cleaning tank (2), respectively. The output ends of the two telescopic cylinders (61) extend through the outer surface of the cleaning tank (2) on the same side and are fixedly connected to scrapers (63). The upper and lower parts of the two scrapers (63) that are far apart from each other are fixedly connected to telescopic rods (62).

8. A construction formwork waste removal device according to claim 7, characterized in that: The left ends of the two telescopic rods (62) on the left side are fixedly connected to the left wall of the inner cavity of the cleaning tank (2), and the right ends of the two telescopic rods (62) on the right side are fixedly connected to the right wall of the inner cavity of the cleaning tank (2). The two scrapers (63) are bent at the ends that are close to each other.

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