Decoration concrete leveling device

Abstract

The invention relates to a decoration concrete leveling device, and relates to the technical field of leveling devices.The decoration concrete leveling device comprises a base, a vertical pile is vertically arranged at the upper end of the base, a mounting box is vertically and slidably connected to one side of the vertical pile in the height direction, an opening is formed in one side of the mounting box in the length direction, and a scraping plate is detachably connected into the mounting box; when installed in the installation box, the scraping plate can rotate in the installation box, part of the scraping plate extends out of the opening, a detection assembly used for detecting the flatness of the scraping plate is arranged on the installation box, a horizontal rod is arranged in the installation box and located at the end away from the opening, and the detection assembly comprises a detection block. The horizontal rod is sleeved with the detection block, a cleaning assembly used for cleaning the scraping plate is further arranged in the mounting box, and a limiting piece used for limiting the position of the scraping plate is further arranged in the mounting box. And the effects of saving manpower and improving the working efficiency can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of leveling devices, in particular to a decoration concrete leveling device. Background Art

[0002] Concrete is a general term for engineering composite materials that are made of aggregates bonded together by cementitious materials. The term concrete usually refers to cement as the cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion and mixed together to obtain cement concrete, also known as ordinary concrete. It is widely used in civil engineering. During the construction process, concrete is needed to lay floor mortar, and a concrete leveling device is needed for flattening.

[0003] After the embedded parts required for decoration are buried, when leveling the embedded parts, most of the time, the staff will use a scraper to level the embedded parts, which is time-consuming and laborious. The scraper will also be worn out after being used for a long time. If the scraper has been worn out, the leveling effect will be poor, but it is difficult for the staff to check the flatness of the scraper with the naked eye. Summary of the invention

[0004] In order to solve the above problems, the present application provides a decoration concrete leveling device.

[0005] In the first aspect, the present application provides a decoration concrete leveling device, which adopts the following technical solution: A decoration concrete leveling device comprises a base, wherein a pile is vertically arranged on the upper end of the base, a mounting box is vertically slidably connected to one side in the height direction of the pile, an opening is provided on one side in the length direction of the mounting box, a scraping plate is detachably connected to the mounting box, when the scraping plate is installed in the mounting box, it can rotate in the mounting box, and part of the scraping plate extends to the outside of the opening, a detection component for detecting the flatness of the scraping plate is arranged on the mounting box, a horizontal rod is arranged inside the mounting box, the horizontal rod is located at one end away from the opening, the detection component comprises a detection block, and the detection block is sleeved on the outside of the horizontal rod, a cleaning component for cleaning the scraping plate is also arranged in the mounting box, and a limiting member for limiting the rotation of the scraping plate is also arranged in the mounting box.

[0006] Optionally, a strip hole is provided at the upper end of the installation box, a connecting rod is provided at the upper end of the detection block, the connecting rod extends to the outside of the strip hole, a push block is provided at the end of the connecting rod away from the detection block, a marking pen is vertically provided on one side of the length direction of the push block, a scale plate is provided on the upper surface of the installation box, the scale plate is provided on one side of the strip hole, and the marking pen abuts against the scale plate.

[0007] Optionally, the cleaning assembly includes a cleaning box arranged inside the installation box, a water tank and a water pump are arranged inside the cleaning box, a water pipe is connected between the water tank and the water pump, a water outlet pipe is arranged at the lower end of the cleaning box, a plurality of nozzles are arranged on the water outlet pipe at equal intervals, and a plurality of nozzles are inclined toward the direction of the scraper plate, the water outlet end of the water pump is connected to the water outlet pipe, and a sewage discharge hole is opened at the lower end of the installation box.

[0008] Optionally, a limiting groove is formed at one end of the limiting member close to the opening, and when the limiting member limits the scraping plate, the scraping plate is located inside the limiting groove.

[0009] Optionally, the limiting member is slidably connected to the horizontal rod, and a second connecting rod is provided at the upper end of the limiting member. The second connecting rod extends to the outside of the strip hole, and a second push block is provided at one end of the second connecting rod away from the second limiting member.

[0010] Optionally, both ends of the installation box in the length direction are slidably connected with support bearings, the support bearings are located inside the installation box, and the width of the outer ring of the support bearing is greater than the width of the inner ring.

[0011] Optionally, both ends of the installation box in the length direction are threadedly connected with screws, the two screws are arranged opposite to each other, the screws correspond to the support bearings one by one, and the screws are fixedly connected to the inner rings of the corresponding support bearings. When the screws are rotated to the inside of the installation box, the outer rings of the support bearings abut against the side walls of the scraper plate.

[0012] Optionally, a spirit level is provided on one side in the height direction of the pile, and the spirit level is provided at the lower end of the pile. A vertical groove is opened on one side in the height direction of the pile. A threaded rod is vertically rotatably connected in the pile, and the threaded rod is located inside the vertical groove. One side in the length direction of the mounting box extends to the inside of the vertical groove and is threadedly connected to the threaded rod. A driving motor is vertically provided on the upper end of the pile, and the output shaft of the driving motor extends into the vertical groove and is coaxially fixedly connected to the threaded rod.

[0013] In a second aspect, the present application provides a scraper plate wear detection method, comprising the following steps: S1: Operate the scraper plate to rotate, and rotate the scraper plate originally located outside the installation box to the inside of the scraper plate; S2: Slide the push block 1 along the length direction of the strip hole to drive the marking pen to mark the scale plate; if the marked scale does not shift, it means that the scraper plate is not worn. If the scale shifts, it means that the scraper plate is worn and needs to be replaced.

[0014] In a third aspect, the present application provides a scraper plate cleaning method, comprising the following steps: A1: Operate the water pump to spray water, the water flows into the water outlet pipe, and sprays out from several nozzles. The water sprayed from the nozzles falls on the upper surface of the scraper plate; A2: Slide the push block 2 along the length direction of the strip hole to drive the limiting piece to slide, and the side wall of the limiting groove contacts the scraping plate inside the installation box to scrape off the concrete and debris on the scraping plate, and clean the side of the scraping plate inside the installation box; A3: Operate the scraper plate to rotate, and move the scraper plate originally located outside the installation box to the inside of the installation box; A4: Repeat step A2.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. When leveling the embedded parts, first move the leveling device, move the base to the position abutting against the wall, then operate the drive motor to rotate, drive the threaded rod to rotate, and then drive the installation box and the scraper plate to move, so as to achieve the leveling of the embedded parts. There is no need to use the scraper plate manually for leveling, which can save manpower; 2. Rotate the scraper plate located outside to the inside of the installation box, slide the push block 1 along the length direction of the strip hole, and drive the marking pen to mark the scale plate; if the marked scale does not shift, it means that the scraper plate is not worn. If the scale shifts, it means that the scraper plate is worn and needs to be replaced. When replacing the scraper plate, first check whether the other side of the scraper plate is worn. If not, the other side of the scraper plate can be rotated to the outside of the installation box to work, thereby improving work efficiency. If both sides of the scraper plate are worn, unscrew both screws from the installation box, and then the scraper plate can be removed and replaced. Compared with traditional scraping tools, the replacement time is shortened and the work efficiency is improved; 3. When cleaning the scraper plate, start the water pump and let the water in the water tank pass through the nozzle. The water will be sprayed out from the nozzle to rinse the surface of the scraper plate, thereby improving the cleaning effect of the scraper plate. Most of the residual concrete and debris scraped off will fall from the drainage hole, making it convenient for the staff to recycle or otherwise handle them. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a decoration concrete leveling device.

[0017] Figure 2 is a schematic diagram highlighting the installation box.

[0018] Figure 3 It is a schematic diagram highlighting the structure inside the installation box.

[0019] Figure 4 It is a schematic diagram highlighting the drain hole.

[0020] Explanation of the reference numerals in the accompanying drawings: 1. base; 2. stake; 21. threaded rod; 22. drive motor; 23. vertical slot; 24. handle; 25. spirit level; 3. mounting box; 31. strip hole; 311. scale plate; 32. push block 1; 321. detection block; 322. connecting rod 1; 323. marking pen; 33. push block 2; 331. limiting member; 332. limiting slot; 333. connecting rod 2; 34. screw; 35. support bearing; 36. scraper plate; 37. cleaning box; 371. water pump; 372. water tank; 373. water inlet pipe; 374. nozzle; 375. drain hole; 38. horizontal rod; 39. opening. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0022] The embodiment of the present application discloses a decoration concrete leveling device.

[0023] Reference Figure 1 and Figure 2 A decoration concrete leveling device includes a base 1, a pile 2 is vertically arranged on the upper end of the base 1, a mounting box 3 is vertically slidably connected to one side of the pile 2 in the height direction, an opening 39 is opened on one side of the mounting box 3 in the length direction, a scraping plate 36 is detachably connected to the mounting box 3, and when the scraping plate 36 is installed in the mounting box 3, it can rotate in the mounting box 3, and part of the scraping plate 36 extends to the outside of the opening 39, and a detection component for detecting the flatness of the scraping plate 36 is arranged on the mounting box 3.

[0024] Reference Figure 1 and Figure 3 , a horizontal rod 38 is arranged inside the installation box 3, and the horizontal rod 38 is located at one end away from the opening 39. The detection assembly includes a detection block 321, and the detection block 321 is sleeved on the outside of the horizontal rod 38. A cleaning assembly for cleaning the scraping plate 36 is also arranged inside the installation box 3, and a limiting member 331 for limiting the rotation of the scraping plate 36 is also arranged inside the installation box 3. When leveling, the base 1 is abutted against the wall, and then the installation box 3 is manipulated to slide along the height direction of the column, thereby driving the scraping plate 36 to move, so as to achieve the leveling of the embedded parts, without the need to manually use the scraping plate 36 for leveling, which can save manpower.

[0025] Reference Figure 1 and Figure 4, a level 25 is provided on one side of the height direction of the pile 2, and the level 25 is provided at the lower end of the pile 2. A vertical slot 23 is provided on one side of the height direction of the pile 2. A threaded rod 21 is vertically rotatably connected in the pile 2, and the threaded rod 21 is located inside the vertical slot 23. One side of the installation box 3 in the length direction extends to the inside of the vertical slot 23 and is threadedly connected to the threaded rod 21. A driving motor 22 is vertically provided on the upper end of the pile 2, and the output shaft of the driving motor 22 extends into the vertical slot 23 and is coaxially fixedly connected to the threaded rod 21; handles 24 are provided on both sides of the height direction of the pile 2. The staff can pick up the handles 24 and then drive the leveling device to move. After the base 1 is abutted against the wall, the pile 2 becomes a horizontal state at this time. The level 25 can check the horizontality of the pile 2, and then operate the driving motor 22 to rotate, drive the threaded rod 21 to rotate, and then drive the installation box 3 and the scraping plate 36 to move, so as to realize the leveling of the embedded parts, and there is no need to use the scraping plate 36 manually for leveling, which can save manpower.

[0026] Reference Figure 3 and Figure 4 After the leveling is completed, the scraping plate 36 can be cleaned by using a cleaning component; the cleaning component includes a cleaning box 37 arranged inside the installation box 3, and a water tank 372 and a water pump 371 are arranged inside the cleaning box 37. A water pipe is connected between the water tank 372 and the water pump 371. A water outlet pipe is arranged at the lower end of the cleaning box 37, and a plurality of nozzles 374 are arranged at equal intervals on the water outlet pipe. The plurality of nozzles 374 are inclined toward the direction of the scraping plate 36. The water outlet end of the water pump 371 is connected to the water outlet pipe, and a sewage discharge hole 375 is opened at the lower end of the installation box 3.

[0027] Reference Figure 2 and Figure 3 The limiting member 331 has a limiting groove 332 at one end close to the opening 39. When the limiting member 331 limits the scraping plate 36, the scraping plate 36 is located inside the limiting groove 332. The limiting member 331 is slidably connected to the horizontal rod 38. The upper end of the limiting member 331 is provided with a second connecting rod 333. The upper end of the installation box 3 has a strip hole 31. The second connecting rod 333 extends to the outside of the strip hole 31. The end of the second connecting rod 333 away from the limiting member 331 is provided with a push block 33. When the scraping plate 36 is moved, the limiting member 331 is connected to the horizontal rod 38. The limiting member 331 is connected to the horizontal rod 38. The upper end of the limiting member 331 is provided with a second connecting rod 333. When cleaning, first slide the push block 2 33, slide the limiting part 331 in the direction away from the scraping plate 36, release the fixation of the scraping plate 36, and then rotate the scraping plate 36 originally located outside the installation box 3 to the inside of the installation box 3, and then use the limiting part 331 to cover the outside of the scraping plate 36 to fix the scraping plate 36, and then start the water pump 371 to pass the water in the water tank 372 through the nozzle 374, and the water is sprayed from the nozzle 374 to rinse the surface of the scraping plate 36, thereby improving the cleaning effect of the scraping plate 36.

[0028] Reference Figure 2 and Figure 3 A water inlet pipe 373 is provided at the upper end of the water tank 372 , and the upper end of the water inlet pipe 373 extends to the upper end of the installation box 3 . If water needs to be filled into the water tank 372 , water can be filled into the water tank 372 from the water inlet pipe 373 .

[0029] Reference Figures 2 to 4 , operate the push block 2 33 to slide along the length direction of the strip hole 31. During the sliding process, the limiting member 331 2 contacts the concrete attached to the scraping plate 36, and then scrapes off the concrete on the outer surface of the scraping plate 36. Most of the scraped residual concrete and debris will fall from the drainage hole 375, which is convenient for the staff to recycle or otherwise handle them.

[0030] Reference Figures 2 to 4 After cleaning the scraping plate 36 originally located outside, the flatness of the scraping plate 36 can be detected by using the detection component. A connecting rod 322 is provided at the upper end of the detection block 321, and the connecting rod 322 extends to the outside of the strip hole 31. A push block 32 is provided at the end of the connecting rod 322 away from the detection block 321. A marking pen 323 is vertically provided on one side of the length direction of the push block 32. A scale plate 311 is provided on the upper surface of the installation box 3, and the scale plate 311 is provided on one side of the strip hole 31. The marking pen 323 abuts against the scale plate 311, and the push block 32 is slid along the length direction of the strip hole 31 to drive the marking pen 323 to draw lines on the scale plate 311.

[0031] Reference Figures 2 to 4 If the scale of the mark does not shift, it means that the scraper plate 36 is not worn. If the scale shifts, it means that the scraper plate 36 is worn and the scraper plate 36 needs to be replaced. When replacing the scraper plate 36, you can first check whether the other side of the scraper plate 36 is worn. If it is not worn, you can rotate the other side of the scraper plate 36 to the outside of the installation box 3 to work, thereby improving work efficiency.

[0032] Reference Figures 2 to 4 , both ends of the mounting box 3 in the length direction are slidably connected with support bearings 35, and the support bearings 35 are both located inside the mounting box 3. The width of the outer ring of the support bearing 35 is greater than the width of the inner ring. Both ends of the mounting box 3 in the length direction are threadedly connected with screws 34, and the two screws 34 are arranged opposite to each other. The screws 34 correspond to the support bearings 35 one by one, and the screws 34 are fixedly connected to the inner rings of the corresponding support bearings 35. When the screws 34 are rotated to the inside of the mounting box 3, the outer rings of the support bearings 35 abut against the side walls of the scraping plate 36; if both sides of the scraping plate 36 are worn, the two screws 34 are unscrewed from the mounting box 3, and then the scraping plate 36 can be removed and replaced. Compared with traditional scraping tools, the replacement time is shortened and the work efficiency is improved.

[0033] The working principle of a decoration concrete leveling device according to an embodiment of the present application is as follows: first, the base 1 is brought into contact with the wall surface, and then the levelness of the pile 2 is checked through the spirit level 25, and then the driving motor 22 is operated to rotate, driving the threaded rod 21 to rotate, and then driving the installation box 3 and the scraping plate 36 to move, so as to realize the leveling of the embedded parts, and there is no need to use the scraping plate 36 manually for leveling, which can save manpower; after the leveling is completed, the scraping plate 36 can be cleaned, first, the push block 2 33 is slid to release the fixation of the scraping plate 36 by the limiting member 331, and then the scraping plate 36 originally located outside is rotated into the installation box 3, at this time, the outer ring of the support bearing 35 rotates, and the scraping plate 36 originally located outside enters the inside of the installation box 3, and then the limiting member 331 is operated to fix the scraping plate 36, and the water pump 371 is started to pass the water in the water tank 372 through the nozzle 374, and the water is sprayed from the nozzle 374 to wash the surface of the scraping plate 36, and the push block 2 33 is operated to slide along the length direction of the strip hole 31 During the sliding process, the limiting member 3312 contacts the concrete attached to the scraping plate 36, and then scrapes off the concrete on the outer surface of the scraping plate 36. Most of the scraped residual concrete and debris will fall from the drainage hole 375. After cleaning the scraping plate 36 originally located on the outside, the push block 32 can be slid along the length direction of the strip hole 31, thereby driving the marking pen 323 to move. If the line drawn by the marking pen 323 on the marking plate does not deviate, it means that the scraping plate 36 is not worn. If the scale deviates, it means that the scraping plate 36 is not worn. If the scraper plate 36 is moved, it means that the scraper plate 36 is worn and needs to be replaced. When replacing the scraper plate 36, the other side of the scraper plate 36 can be first detected to see if it is worn. If it is not worn, the other side of the scraper plate 36 can be rotated to the outside of the installation box 3 to work, thereby improving work efficiency. If both sides of the scraper plate 36 are worn, the two screws 34 are unscrewed from the installation box 3, and then the scraper plate 36 can be removed and replaced. Compared with traditional scraping tools, the replacement time is shortened and the work efficiency is improved.

[0034] The present application discloses a method for detecting wear of a scraper plate, comprising the following steps: S1: Manipulate the scraping plate 36 to rotate, and rotate the scraping plate 36 originally located outside the installation box 3 to the inside of the scraping plate 36; S2: Slide the push block 32 along the length direction of the strip hole 31 to drive the marking pen 323 to mark the scale plate 311; if the scale of the marking does not shift, it means that the scraper plate 36 is not worn. If the scale shifts, it means that the scraper plate 36 is worn and needs to be replaced.

[0035] The present application discloses a method for cleaning a scraper plate, comprising the following steps: A1: operate the water pump 371 to spray water, the water flows into the water outlet pipe, and is sprayed from a plurality of nozzles 374, and the water sprayed from the nozzles 374 falls on the upper surface of the scraping plate 36; A2: Slide the push block 33 along the length direction of the strip hole 31, drive the limiting member 331 to slide, and the side wall of the limiting groove 332 contacts the scraping plate 36 located inside the installation box 3, scraping off the concrete and debris on the scraping plate 36, and cleaning the side of the scraping plate 36 located inside the installation box 3; A3: Operate the scraper plate 36 to rotate, and rotate the scraper plate 36 originally located outside the installation box 3 to the inside of the installation box 3; A4: Repeat step A2.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A decoration concrete leveling device, comprising a base (1), characterized in that: A stake (2) is vertically arranged at the upper end of the base (1); a mounting box (3) is vertically slidably connected to one side of the stake (2) in the height direction; an opening (39) is provided on one side of the mounting box (3) in the length direction; a scraping plate (36) is detachably connected to the mounting box (3); when the scraping plate (36) is mounted in the mounting box (3), it can rotate in the mounting box (3), and a part of the scraping plate (36) extends to the outside of the opening (39); a detection component for detecting the flatness of the scraping plate (36) is arranged on the mounting box (3); a horizontal rod (38) is arranged inside the mounting box (3); the horizontal rod (38) is located at one end away from the opening (39); the detection component comprises a detection block (321); the detection block (321) is sleeved on the outside of the horizontal rod (38); a cleaning component for cleaning the scraping plate (36) is also arranged in the mounting box (3); and a limiting member (331) for limiting the rotation of the scraping plate (36) is also arranged in the mounting box (3).

2. A finishing concrete leveling device according to claim 1, characterized in that: The upper end of the installation box (3) is provided with a strip hole (31), the upper end of the detection block (321) is provided with a connecting rod (322), the connecting rod (322) extends to the outside of the strip hole (31), a push block (32) is provided at one end of the connecting rod (322) away from the detection block (321), a marking pen (323) is vertically provided on one side of the push block (32) in the length direction, a scale plate (311) is provided on the upper surface of the installation box (3), the scale plate (311) is arranged on one side of the strip hole (31), and the marking pen (323) is in contact with the scale plate (311).

3. A finishing concrete leveling device according to claim 1, characterized in that: The cleaning assembly comprises a cleaning box (37) arranged inside the installation box (3); a water tank (372) and a water pump (371) are arranged inside the cleaning box (37); a water pipe is connected between the water tank (372) and the water pump (371); a water outlet pipe is arranged at the lower end of the cleaning box (37); a plurality of nozzles (374) are arranged at equal intervals on the water outlet pipe; the plurality of nozzles (374) are arranged obliquely toward the direction of the scraping plate (36); a water outlet end of the water pump (371) is connected to the water outlet pipe; and a sewage discharge hole (375) is opened at the lower end of the installation box (3).

4. A finishing concrete leveling device according to claim 1, characterized in that: A limiting groove (332) is formed at one end of the limiting member (331) close to the opening (39); when the limiting member (331) limits the position of the scraping plate (36), the scraping plate (36) is located inside the limiting groove (332).

5. A finishing concrete leveling device according to claim 4, characterized in that: The limiting member (331) is slidably connected to the horizontal rod (38), and a second connecting rod (333) is provided at the upper end of the limiting member (331). The second connecting rod (333) extends to the outside of the strip hole (31), and a second pushing block (33) is provided at one end of the second connecting rod (333) away from the limiting member (331).

6. A finishing concrete leveling device according to claim 1, characterized in that: Both ends of the installation box (3) in the length direction are slidably connected with support bearings (35), the support bearings (35) are located inside the installation box (3), and the width of the outer ring of the support bearing (35) is greater than the width of the inner ring.

7. A finishing concrete leveling device according to claim 6, characterized in that: Both ends of the installation box (3) in the length direction are threadedly connected with screw rods (34), the two screw rods (34) are arranged opposite to each other, the screw rods (34) correspond to the support bearings (35) one by one, and the screw rods (34) are fixedly connected to the inner ring of the corresponding support bearing (35). When the screw rods (34) rotate to the inside of the installation box (3), the outer ring of the support bearing (35) abuts against the side wall of the scraper plate (36).

8. The decoration concrete leveling device according to claim 1 is characterized by: A level meter (25) is provided on one side of the pile (2) in the height direction, and the level meter (25) is arranged at the lower end of the pile (2). A vertical groove (23) is provided on one side of the pile (2) in the height direction. A threaded rod (21) is vertically rotatably connected in the pile (2), and the threaded rod (21) is located inside the vertical groove (23). One side of the mounting box (3) in the length direction extends to the inside of the vertical groove (23) and is threadedly connected to the threaded rod (21). A driving motor (22) is vertically provided at the upper end of the pile (2), and the output shaft of the driving motor (22) extends into the vertical groove (23) and is coaxially fixedly connected to the threaded rod (21).

9. A method for detecting wear of a scraper plate, characterized in that: Using the decoration concrete leveling device described in claim 2 to detect wear on the scraping plate comprises the following steps: S1: operating the scraping plate (36) to rotate, and rotating the scraping plate (36) originally located outside the installation box (3) to the inside of the scraping plate (36); S2: Slide the push block (32) along the length direction of the strip hole (31) to drive the marking pen (323) to mark a line on the scale plate (311); if the scale of the marking does not deviate, it means that the scraping plate (36) is not worn; if the scale deviates, it means that the scraping plate (36) is worn and needs to be replaced.

10. A method for cleaning a scraper plate, characterized in that: Using the decoration concrete leveling device described in claim 5 to clean the scraping plate comprises the following steps: A1: operate the water pump (371) to spray water, the water flows into the water outlet pipe, and is sprayed from a plurality of spray heads (374), and the water sprayed from the spray heads (374) falls onto the upper surface of the scraping plate (36); A2: Slide the push block 2 (33) along the length direction of the strip hole (31), drive the limiting member (331) to slide, and the side wall of the limiting groove (332) contacts the scraping plate (36) located inside the installation box (3), scraping off the concrete and debris on the scraping plate (36), and cleaning the side of the scraping plate (36) located inside the installation box (3); A3: Operate the scraping plate (36) to rotate, and rotate the scraping plate (36) originally located outside the installation box (3) to the inside of the installation box (3); A4: Repeat step A2.

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