A skid-mounted car washer water tray

Abstract

The utility model discloses a skid -mounted car washer water tray, include: water tray bottom case, and the both ends symmetrical fixed junction of water tray bottom case has the apron, and the inside bottom surface fixed junction of water tray bottom case has the inclined flow guide plate, and the both ends respectively symmetrical of water tray bottom case inside are equipped with moving groove frame no.

Description

Technical Field

[0001] This utility model relates to the technical field of water tray equipment, specifically a skid-mounted water tray for a car wash machine. Background Technology

[0002] A skid-mounted car wash machine's water tray is a disc-shaped device installed at the bottom of the car wash machine to collect sewage, mud, and other debris generated during the car wash process. It typically adopts a modular design and can be quickly assembled or disassembled with the main body of the car wash machine. It has the functions of collecting and temporarily storing sewage and initially filtering impurities, which facilitates the centralized treatment and recycling of sewage in the future. At the same time, it can keep the car wash site clean and reduce the environmental impact of sewage overflow.

[0003] Existing Chinese patent document CN217374438U discloses a skid-mounted car wash machine water tray, including a rainproof cloth laid on the ground, and two layers of plastic grids laid on the upper surface of the rainproof cloth and a water pumping mechanism. The two layers of plastic grids are distributed vertically, and guide rails are fixedly installed on the plastic grids near the front and rear sides. The two ends of the guide rails are fixedly connected to water-blocking square tubes fixed at both ends of the plastic grids. The outer sides of the two water-blocking square tubes are provided with curb slopes. The water pumping mechanism includes a low-suction pump located on the inner side of the intersection of the water-blocking square tubes and the guide rails. The water pump, through the installation of a rainproof cloth, plastic grid, guide rails, and low-suction submersible pump, conveniently solves the problem of uneven site conditions that make it difficult to install the car wash machine. It saves the expensive cost of building the car wash machine foundation and the time cost of construction. The entire skid-mounted water pan is simple to construct on-site, has a fast construction period, and the flatness of the guide rails can be well guaranteed. However, the skid-mounted car wash machine water pan still has shortcomings: it lacks an automated mud and sand cleaning mechanism. Mud and sand generated during the car washing process are easy to accumulate in the water pan, blocking the drainage channel, affecting the normal operation of the car wash machine, and requiring frequent manual cleaning, increasing labor costs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the water pan of the above-mentioned skid-mounted car wash machine lacks an automated mud and sand cleaning mechanism, and the mud and sand generated during the car washing process easily accumulates in the water pan, clogging the drainage channel, affecting the normal operation of the car wash machine, and requiring frequent manual cleaning, which increases labor costs. Therefore, this utility model provides a skid-mounted car wash machine water pan.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a skid-mounted car wash water pan, comprising: a water pan base box, with symmetrical ramps fixed to both ends of the water pan base box, an inclined guide plate fixed to the bottom surface inside the water pan base box, and two movable slot frames symmetrically passing through both ends of the inside of the water pan base box, with a movable slide plate slidably connected inside the movable slot frame 1, and a mud-pushing screen frame fixed to the bottom end of the movable slide plate 1; a movable slide plate slidably connected inside the movable slot frame 2, with a connecting scraper fixed to one end of the movable slide plate 2; a mud storage frame is connected through to one end of the two sides of the water pan base box with the movable slot frame 1 structure, and a suction pipe is connected through to the other end; a supporting ring is fixed to the top of the inner side of the water pan base box, and a steel grating is mounted on the top of the supporting ring.

[0006] As a further embodiment of this utility model: a servo motor is fixedly connected to one end of the outer side of the first movable slot frame, and a rotating screw is provided at the output end of the first servo motor. The rotating screw passes through the first movable slot frame and is located inside it, and is screwed into the inside of the first movable slide plate. A servo motor is fixedly connected to one end of the outer side of the second movable slot frame, and a rotating screw is provided at the output end of the second servo motor. The rotating screw passes through the second movable slot frame and is located inside it, and is screwed into the inside of the second movable slide plate. The connecting scraper connects the first movable slide plate, the mud-pushing screen frame, and the second movable slide plate, and they form a single unit.

[0007] As a further embodiment of this utility model: the bottom surface of the connecting scraper is in contact with the inclined guide plate, and the two ends are respectively connected to the movable sliding plate one and the movable sliding plate two to form a plate structure that can be controlled to move horizontally. The mud-pushing screen frame is set as a rectangular frame structure, and the bottom surface used for drainage is provided with several sets of screen holes so that the car wash wastewater flows with the inclined guide plate to the lowest point and the mud and sand gather on the straight moving path of the mud-pushing screen frame.

[0008] As a further embodiment of this utility model: the mud storage frame is located on the opening side of the mud pushing screen frame and is connected to one side of the water pan bottom box. One end of the mud storage frame is hinged with a mud unloading door. The mud storage frame is convenient for receiving the automatically pushed mud and sand when the mud pushing screen frame moves back and forth.

[0009] As a further embodiment of this utility model: the bottom surface of the steel grating is symmetrically fixed with several sets of support columns, the steel grating is symmetrically provided with grating bolts in four directions, the supporting ring is adapted to the specifications of the steel grating, and is provided with screw hole structures in four directions that are adapted to the number, specifications and positions of the grating bolts.

[0010] As a further embodiment of this utility model: anti-splash side plates are symmetrically fixed to both ends of the top surface of the water basin bottom box, and anti-splash spring plates are symmetrically hinged between the two sets of anti-splash side plates. Two sets of connecting springs are symmetrically connected to the inner side of the anti-splash spring plates, and the other end of each connecting spring is connected to the corresponding position on the top surface of the water basin bottom box.

[0011] As a further embodiment of this utility model: the suction pipe is located on the other side of the water pan bottom box relative to the mud storage frame, and a suction pump is connected through the suction pipe. Both sides of the two sets of slope plates are symmetrically fixed with ground lugs, and ground bolts are installed inside the ground lugs to increase the stability of the water pan bottom box on the ground.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, servo motor one and servo motor two are combined with rotating screw one and rotating screw two to drive moving slide plate one and moving slide plate two, which in turn drive the connecting scraper and mud pushing screen frame to move synchronously, thereby realizing the automated collection and pushing of mud and sand in car washing.

[0014] 2. The structure of the connecting scraper closely attached to the inclined guide plate in this utility model, and the mud-pushing screen frame set at the lowest point inside the box, make the mud and sand naturally gather at the lowest point inside the box with the water flow, without the need for frequent manual intervention. Compared with traditional equipment that requires manual cleaning or has a low degree of automation, it significantly improves the mud and sand cleaning efficiency, reduces labor costs, and avoids mud and sand clogging the drainage channel due to untimely manual operation, thus ensuring the continuous and stable operation of the car wash machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the water tray of a skid-mounted car wash machine according to the present invention;

[0016] Figure 2 This is a schematic diagram of the inclined guide plate in the water tray of a skid-mounted car wash machine according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the movable trough frame in the water tray of a skid-mounted car wash machine according to the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the movable trough frame 2 in the water tray of the skid-mounted car wash machine described in this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the connecting scraper in the water tray of a skid-mounted car wash machine according to the present invention;

[0020] Figure 6 This is a schematic diagram of the steel grating in the water tray of a skid-mounted car wash machine according to the present invention.

[0021] In the diagram: 1. Water tray bottom box; 2. Slope plate; 3. Inclined guide plate; 4. Moving trough frame one; 5. Moving trough frame two; 6. Servo motor one; 7. Rotating screw one; 8. Moving slide plate one; 9. Mud pushing screen frame; 10. Servo motor two; 11. Rotating screw two; 12. Moving slide plate two; 13. Connecting scraper; 14. Mud storage frame; 15. Mud unloading gate; 16. Support ring; 17. Steel grating; 18. Support column; 19. Grating bolt; 20. Screw hole; 21. Splash guard side plate; 22. Splash guard spring plate; 23. Connecting spring; 24. Suction pipe; 25. Suction pump; 26. Grounding lug plate; 27. Grounding bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0024] Reference Figures 1 to 6In this embodiment of the utility model, a skid-mounted car wash water pan includes: a water pan base box 1, with ramps 2 symmetrically fixed to both ends of the water pan base box 1, an inclined guide plate 3 fixed to the bottom surface inside the water pan base box 1, and movable slot frames 4 and 5 symmetrically passing through both ends of the water pan base box 1, with a movable slide plate 8 slidably connected inside the movable slot frame 4, and a mud-pushing screen frame 9 fixed to the bottom end of the movable slide plate 8, and a movable slide plate 12 slidably connected inside the movable slot frame 5, with a connecting scraper 13 fixed to one end of the movable slide plate 12, and a mud storage frame 14 penetrating one end of the two sides of the water pan base box 1 with the movable slot frame 4 structure, and a suction pipe 24 penetrating the other end, with a supporting ring 16 fixed to the top of the inner side of the water pan base box 1, and a steel grid 17 mounted on the top of the supporting ring 16.

[0025] Reference Figures 1 to 6 A servo motor 6 is fixedly connected to one end of the outer side of the movable slot frame 4. A rotating screw 7 is provided at the output end of the servo motor 6. The rotating screw 7 passes through the movable slot frame 4 and is located inside it. It is also screwed into the interior of the movable slide plate 8. A servo motor 10 is fixedly connected to one end of the outer side of the movable slot frame 5. A rotating screw 11 is provided at the output end of the servo motor 10. The rotating screw 11 passes through the movable slot frame 5 and is located inside it. It is also screwed into the interior of the movable slide plate 12. The connecting scraper 13 connects the movable slide plate 8, the mud-pushing screen frame 9, and the movable slide plate 12, forming a single unit.

[0026] The above scheme uses servo motor 6 and servo motor 10 as power sources. Through precise motor control technology, it can stably output power. When servo motor 6 starts, the rotating screw 7 at its output end begins to rotate. Since the rotating screw 7 is screwed to the moving slide plate 8, under the action of thread transmission, the moving slide plate 8 will move smoothly along the screw axis within the moving slot frame 4. Similarly, servo motor 10 drives the rotating screw 11 to rotate, causing the moving slide plate 12 to move within the moving slot frame 5. The connecting scraper 13 connects the moving slide plate 8, the mud-pushing screen frame 9, and the moving slide plate 12 into one unit. This linkage structure realizes the synchronous movement of the three, precisely controls the movement of the mud-pushing screen frame 9 and the connecting scraper 13, and can automatically and efficiently clean and collect the mud and sand generated during the car washing process without frequent manual operation, thus improving the automation level and work efficiency of the car wash machine.

[0027] Reference Figures 1 to 6 The bottom surface of the connecting scraper 13 is attached to the inclined guide plate 3, and the two ends are respectively connected to the movable slide plate 1 8 and the movable slide plate 2 12 to form a plate structure that can be controlled to move horizontally. The mud pushing screen frame 9 is set as a rectangular frame structure, and the bottom surface used for drainage is provided with several sets of screen holes so that the car wash wastewater flows with the inclined guide plate 3 to the lowest point and the mud and sand gather on the straight moving path of the mud pushing screen frame 9.

[0028] The above solution involves a scraper 13 tightly fitting against an inclined guide plate 3. This plate structure, along with the movable slide plate 8 and the movable slide plate 12, can achieve precise horizontal displacement control under the drive of a servo motor. The rectangular frame of the mud-pushing screen frame 9, with its bottom screen hole design, can collect mud and sand while allowing car wash wastewater to be quickly discharged through the screen holes. When the car wash wastewater flows along the inclined guide plate 3 to the lowest point, the mud and sand will naturally gather on the moving path of the mud-pushing screen frame 9. During the automatic movement driven by the motor, the mud-pushing screen frame 9 can collect the mud and sand, preventing the mud and sand from accumulating in the bottom tank 1 and clogging the drainage channel. This ensures the smooth flow of the car wash machine's drainage system and improves the continuous working capacity of the car wash machine.

[0029] Reference Figures 1 to 6 The mud storage frame 14 is located on the opening side of the mud pushing screen frame 9 and is connected to one side of the water pan bottom box 1. One end of the mud storage frame 14 is hinged with a mud unloading door 15. The mud storage frame 14 is convenient to receive the mud and sand automatically pushed out when the mud pushing screen frame 9 moves back and forth.

[0030] The above solution involves a mud storage frame 14 that is connected to the water tray bottom box 1 and positioned directly opposite the opening of the mud pushing screen frame 9. When the mud pushing screen frame 9 moves and pushes the mud and sand to the opening, the mud and sand can smoothly enter the mud storage frame 14. The mud discharge door 15 at one end of the mud storage frame 14 is hinged, making it convenient for staff to open the mud discharge door 15 for cleaning. During the reciprocating movement of the mud pushing screen frame 9, the mud and sand are continuously pushed to the mud storage frame 14, achieving automatic collection and temporary storage of the mud and sand, reducing the frequency and workload of manual cleaning. Moreover, the mud storage frame 14 separates the mud and sand from the car wash wastewater, preventing the mud and sand from mixing back into the wastewater. This facilitates subsequent classification and treatment of the mud and sand and wastewater, meets environmental protection requirements, and also improves the overall cleaning effect of the car wash machine.

[0031] Reference Figures 1 to 6 The bottom surface of the steel grating 17 is symmetrically fixed with several sets of support columns 18. The steel grating 17 is symmetrically provided with grating bolts 19 in four directions. The supporting ring 16 is compatible with the specifications of the steel grating 17 and is symmetrically provided with screw holes 20 in four directions that are compatible with the number, specifications and positions of the grating bolts 19.

[0032] The above-mentioned scheme is adopted: the support columns 18 are symmetrically distributed on the bottom surface of the steel grating 17, providing stable support for the steel grating 17, enhancing its load-bearing capacity, and enabling it to withstand the pressure of vehicles running over it and people stepping on it during the car washing process. After the grating bolts 19 pass through the steel grating 17, they are screwed into the screw holes 20 on the supporting ring 16. This connection method allows the steel grating 17 to be firmly mounted on the supporting ring 16, and the installation and disassembly operations are simple. As the upper load-bearing surface of the car wash machine's water pan, the steel grating 17 can allow the car wash wastewater to flow smoothly into the water pan bottom box 1 with maximum efficiency, while blocking larger debris from entering and avoiding blockage of the drainage system. It plays a dual role of filtration and load-bearing, extending the service life of the water pan and other components of the car wash machine.

[0033] Reference Figures 1 to 6 The top surface of the water basin base 1 is symmetrically fixed with anti-splash side plates 21 at both ends. Anti-splash spring plates 22 are symmetrically hinged between the two sets of anti-splash side plates 21 at both ends. Two sets of connecting springs 23 are symmetrically connected inside the anti-splash spring plates 22. The other end of each connecting spring 23 is connected to the corresponding position on the top surface of the water basin base 1.

[0034] The above solution involves fixing the splash guards 21 to both ends of the top surface of the water tray base 1, forming a preliminary blocking structure to reduce the splashing of wastewater to both sides during the car wash process. The splash guard 22 is connected to the splash guards 21 by a hinge, allowing it to rotate flexibly. With the elastic action of the connecting spring 23, when a vehicle enters or exits the car wash machine, the splash guard 22 is squeezed, the connecting spring 23 is compressed, and the splash guard 22 falls down without affecting vehicle passage. After the vehicle passes, the splash guard 22 automatically resets under the elastic force of the connecting spring 23. This movable splash guard structure can effectively block the splashing of car wash wastewater in the upward and forward / backward directions, preventing wastewater from splashing onto the outside of the car wash machine, keeping the car wash site clean, and also reducing the pollution of the surrounding environment and equipment by wastewater, thus improving the comfort and environmental friendliness of the car wash machine.

[0035] Reference Figures 1 to 6 The suction pipe 24 is located in the bottom tank 1 of the water basin on the other side of the mud storage frame 14. The suction pipe 24 is connected to the suction pump 25. Both sides of the two sets of slope plates 2 are symmetrically fixed with ground lugs 26. Ground bolts 27 are installed inside the ground lugs 26 to increase the stability of the bottom tank 1 on the ground.

[0036] The above-mentioned solution, combining the suction pipe 24 and the suction pump 25, can efficiently extract the car wash wastewater from the water pan tank 1 for centralized treatment. The suction pump 25 provides strong suction, allowing the wastewater to be quickly discharged through the suction pipe 24, preventing the wastewater from stagnating in the water pan tank 1 for a long time, thus preventing the growth of bacteria and the generation of odors. The grounding lugs 26 on both sides of the slope 2 are firmly connected to the ground by grounding bolts 27. This fixing method greatly enhances the stability of the water pan tank 1, ensuring that it will not shift or shake during the operation of the car wash machine, even if it is subjected to external forces such as vibration from vehicle movement or water flow impact. This ensures the normal operation of the car wash machine and also improves the safety and reliability of the car wash machine.

[0037] The working principle of this utility model is as follows: When a vehicle drives into the car wash machine, the anti-splash side plates 21 and anti-splash spring plates 22 at both ends of the top surface of the water tray bottom box 1 work together. The anti-splash side plates 21 block wastewater from splashing to both sides. Under the pressure of the vehicle, the anti-splash spring plates 22 are compressed and rotated in conjunction with the connecting spring 23 to avoid obstructing the passage of the vehicle. After the vehicle passes, they automatically reset to prevent wastewater from splashing forward and backward.

[0038] During the car wash, wastewater falls onto the steel grating 17. The grating structure allows the wastewater to flow quickly into the bottom tank 1 of the water tray, while blocking large debris and preventing blockage of the drainage system. The wastewater flows along the inclined guide plate 3 on the bottom of the interior to the lowest point, and the mud and sand gradually gather on the moving path of the mud-pushing screen frame 9 under the action of water flow.

[0039] At this time, servo motor 6 and servo motor 10 are started. Servo motor 6 drives the rotating screw 7 to rotate, so that the moving slide plate 8 moves in the moving slot frame 4. Servo motor 10 drives the rotating screw 11 to rotate, so that the moving slide plate 12 moves in the moving slot frame 5. The connecting scraper 13 connects the moving slide plate 8, the mud pushing screen frame 9 and the moving slide plate 12 into one unit to achieve synchronous movement. The connecting scraper 13 is close to the inclined guide plate 3 and scrapes off the residual mud and sand during the movement. The mud pushing screen frame 9 collects the accumulated mud and sand, and the screen holes on its bottom surface allow the wastewater to be discharged, keeping the mud and sand accumulated in the screen frame.

[0040] The mud-pushing screen frame 9 pushes the collected mud and sand to the mud storage frame 14. The mud storage frame 14 is connected to the water pan bottom box 1 and is directly opposite the opening of the mud-pushing screen frame 9, allowing the mud and sand to enter and be temporarily stored. The mud unloading door 15 facilitates subsequent manual cleaning. At the same time, the suction pump 25 starts and pumps the wastewater in the water pan bottom box 1 through the suction pipe 24 for centralized treatment. The ground fixing ears 26 on both sides of the slope plate 2 are fastened to the ground by ground fixing bolts 27 to ensure that the water pan bottom box 1 remains stable during the operation of the car wash machine and is not affected by vehicle vibration and water flow impact.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A skid-mounted car wash water tray, comprising: The water basin bottom box (1) is characterized in that slope plates (2) are symmetrically fixed at both ends of the water basin bottom box (1), and inclined guide plates (3) are fixedly fixed at the bottom surface inside the water basin bottom box (1). Moving slot frame one (4) and moving slot frame two (5) are symmetrically passed through the two ends inside the water basin bottom box (1). Moving slot frame one (4) is slidably connected inside the moving slot frame one (4). A mud pushing screen frame (9) is fixedly connected at the bottom end of the moving slot frame one (8). Moving slot frame two (5) is slidably connected inside the moving slot frame two (5). A connecting scraper (13) is fixedly connected at one end of the moving slot frame two (12). A mud storage frame (14) is connected through one end of the two sides of the water basin bottom box (1) with the moving slot frame one (4) structure, and a suction pipe (24) is connected through the other end. A supporting ring (16) is fixedly connected to the top of the inner side of the water basin bottom box (1). A steel grid (17) is mounted on the top of the supporting ring (16).

2. The skid-mounted car wash water tray according to claim 1, characterized in that, A servo motor (6) is fixedly connected to one end of the outer side of the first movable slot frame (4). A rotating screw (7) is provided at the output end of the first servo motor (6). The rotating screw (7) passes through the first movable slot frame (4) and is located inside it. It is also screwed into the inside of the first movable slide plate (8). A servo motor (10) is fixedly connected to one end of the outer side of the second movable slot frame (5). A rotating screw (11) is provided at the output end of the second servo motor (10). The rotating screw (11) passes through the second movable slot frame (5) and is located inside it. It is also screwed into the inside of the second movable slide plate (12). The connecting scraper (13) connects the first movable slide plate (8), the mud-pushing screen frame (9), and the second movable slide plate (12), and they form the same whole.

3. The skid-mounted car wash water tray according to claim 1, characterized in that, The bottom surface of the connecting scraper (13) is in contact with the inclined guide plate (3), and the two ends are respectively connected to the movable slide plate one (8) and the movable slide plate two (12) to form a plate structure that can be controlled to move horizontally. The mud pushing screen frame (9) is set as a rectangular frame structure, and the bottom surface used for drainage is provided with several sets of screen holes so that the car wash wastewater flows with the inclined guide plate (3) to the lowest point so that the mud and sand gather on the straight moving path of the mud pushing screen frame (9).

4. The skid-mounted car wash water tray according to claim 1, characterized in that, The mud storage frame (14) is located on the opening side of the mud pushing screen frame (9) and is connected to the bottom box of the water pan (1) on one side. One end of the mud storage frame (14) is hinged with a mud unloading door (15). The mud storage frame (14) is convenient to receive the mud and sand automatically pushed out when the mud pushing screen frame (9) moves back and forth.

5. The skid-mounted car wash water tray according to claim 1, characterized in that, The bottom surface of the steel grating (17) is symmetrically fixed with several sets of support columns (18). The steel grating (17) is symmetrically provided with grating bolts (19) in four directions. The supporting ring (16) is compatible with the specifications of the steel grating (17) and is symmetrically provided with screw holes (20) in four directions that are compatible with the number, specifications and positions of the grating bolts (19).

6. The skid-mounted car wash water tray according to claim 1, characterized in that, The top surface of the water basin bottom box (1) is symmetrically fixed with anti-splash side plates (21) at both ends. Anti-splash spring plates (22) are symmetrically hinged between the two sets of anti-splash side plates (21). Two sets of connecting springs (23) are symmetrically connected inside the anti-splash spring plates (22). The other end of each connecting spring (23) is connected to the corresponding position on the top surface of the water basin bottom box (1).

7. The skid-mounted car wash water tray according to claim 1, characterized in that, The suction pipe (24) is located on the other side of the water pan bottom box (1) opposite to the mud storage frame (14). A suction pump (25) is connected through the suction pipe (24). Both sides of the two sets of slope plates (2) are symmetrically fixed with ground lugs (26). Ground bolts (27) are inserted inside the ground lugs (26) to increase the stability of the water pan bottom box (1) on the ground.

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