A welding jig for a child seat frame

Abstract

The present application relates to the technical field of child seat welding, and discloses a welding clamp for a child seat framework, which comprises a keel framework, an electric sliding rail is mounted on the inner wall of the keel framework, a welding device is mounted on the outer surface of the electric sliding rail, a motor is fixedly connected to the inner wall of the keel framework, a rotating threaded rod is fixedly connected to the output end of the motor, a moving frame is threadedly connected to the circumferential surface of the rotating threaded rod, a bidirectional threaded rod is rotatably connected to the inner wall of the moving frame, a rotating disc is fixedly connected to the left side of the bidirectional threaded rod, and a limiting plate is threadedly connected to the circumferential surface of the bidirectional threaded rod. When reinforcing, the child seat framework can be limited and reinforced by rotating the bidirectional threaded rod to drive the limiting plate to move, so that deformation or damage of the framework caused by excessive or insufficient local pressure is prevented, the structural integrity and stability of the framework are maintained, and the quality of the welded part after welding is improved.

Description

Technical Field

[0001] This invention relates to the field of child seat welding technology, specifically a welding fixture for a child seat frame. Background Technology

[0002] As a key piece of equipment to ensure the safety of children in vehicles, the quality and safety of child seats are of paramount importance. This device enables precise positioning and reliable clamping of the child seat frame components.

[0003] Patent application number 202021003819.0 relates to a welding fixture for a child seat frame, specifically including a worktable, a first clamp, a second clamp, and clamps. The device is equipped with a first slide and a second slide, with the first and second clamps respectively mounted on the first and second slides via threaded sleeves and lifting rods. The side of the second slide is slidably connected to a sliding rod on the side of the worktable, allowing the first clamp to be adjusted in height and along the edge of the worktable, and the second clamp to be adjusted in height and on the horizontal plane of the worktable. This allows it to accommodate welding parts of different sizes. The device is fixed by setting a first telescopic rod, a second telescopic rod, a sliding groove, and a first rotating shaft, which makes it easy for the clamp to grip different child seat frames, and also makes it easy to adjust the angle and orientation of the child seat frame. It is also easier to connect with the welded parts on the first and second clamps, thereby greatly improving welding efficiency and welding accuracy. However, this device is difficult to adapt to child seat frames of different sizes when welding child seats. At the same time, the limiting of the seat frame is prone to deviation, and it is also difficult to adjust the welding position. Therefore, a welding fixture for child seat frames is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a welding fixture for a child seat frame, which addresses the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a welding fixture for a child seat frame, including a frame, an electric slide rail installed on the inner wall of the frame, a welding device installed on the outer surface of the electric slide rail, a motor fixedly connected to the inner wall of the frame, a rotating threaded rod fixedly connected to the output end of the motor, a movable frame threadedly connected to the circumferential surface of the rotating threaded rod, a bidirectional threaded rod rotatably connected to the inner wall of the movable frame, a turntable fixedly connected to the left side of the bidirectional threaded rod, and a limiting plate threadedly connected to the circumferential surface of the bidirectional threaded rod. During reinforcement, the bidirectional threaded rod can rotate to move the limiting plate to limit and reinforce the child seat frame, preventing deformation or damage to the frame due to excessive or insufficient local pressure, thus helping to maintain the structural integrity and stability of the frame and improving the quality of the welded parts. The inner wall of the limiting plate is provided with a reinforcement mechanism for assisting in the reinforcement of the seat frame, and an adjusting backrest is installed on the inner wall of the limiting plate. The moving frame is threaded with adjusting bolts. A cleaning mechanism for removing welding slag is installed on the inner wall of the moving frame. A connecting plate is fixedly connected to the inner wall of the moving frame, and a pressure plate is rotatably connected to the inner wall of the moving frame. Pulleys are installed on both sides of the pressure plate. A guide plate is fixedly connected to the inner wall of the keel frame, and a base plate is fixedly connected to the bottom of the keel frame. After limiting the position of the welded part, the moving frame moves to drive the pressure plate to press the welded part firmly, preventing loosening during welding and improving the stability of the welded part during welding, making welding safer for workers. The circumferential surface of the rotating threaded rod is rotatably connected to the inner wall of the keel frame, and the circumferential surface of the limiting plate is slidably connected to the inner wall of the moving frame. The circumferential surface of the adjusting bolt is threadedly connected to the inner wall of the adjusting plate. The outer surface of the connecting plate is in contact with the inner wall of the limiting plate. The moving frame is slidably connected to the inner wall of the keel frame, the pressure plate is in contact with the outer surface of the limiting plate, and the circumferential surface of the pulley is in contact with the inner wall of the guide plate.

[0006] Preferably, the reinforcement mechanism includes a fixing block, an inner wall of which is rotatably connected to a striking rod via a torsion spring, an inner wall of the limiting plate is rotatably connected to a connecting rod via a torsion spring, a rotating rod is fixedly connected to the circumferential surface of the connecting rod, a pressing block is fixedly connected to the side of the rotating rod away from the limiting plate, a clamping plate is fixedly connected to the circumference of the connecting rod, and a limiting block is fixedly connected to the outer surface of the limiting plate. While pressing the welded parts, the pressing plate drives the striking rod to strike the welded parts, dislodging the weld slag and improving the long-term durability of the child seat frame. Safety is improved, and the welding effect is also enhanced. A fixing block is fixedly connected to the outer surface of the limiting plate. The outer surface of the striking rod contacts the limiting plate, and the bottom of the pressure plate contacts the striking rod. While pressing the welded parts, the pressure plate drives the clamping plate to rotate and reinforce the welded parts, making the welding more stable and preventing the seat frame from shaking during welding, thus improving the welding accuracy. The bottom of the pressure plate contacts the pressing block, the rotating rod contacts the side of the limiting plate away from the clamping plate, and the clamping plate contacts the side of the limiting plate away from the rotating rod.

[0007] Preferably, the cleaning mechanism includes a reciprocating lead screw, a pulley two fixedly connected to the circumferential surface of the reciprocating lead screw, and a scraper movably connected to the circumferential surface of the reciprocating lead screw. After the welded parts are welded, the scraper is moved back and forth by the movement of the moving frame to clean the residual welding slag on the bottom plate, further protecting the equipment, making the equipment more stable during operation, improving the stability of the equipment, and increasing the working efficiency of the equipment. The inner wall of the scraper is rotatably connected to the reciprocating lead screw two, rollers are fixedly connected to the front and rear sides of the reciprocating lead screw two, and a moving rod is movably connected to the circumferential surface of the reciprocating lead screw two. The inner wall of the moving frame is fixed. A limiting rod is connected, and while cleaning the base plate, the scraper drives the moving rod to move back and forth, thereby increasing the cleaning area of ​​the scraper, preventing blind spots when cleaning welding slag, improving the cleaning effect of the equipment, making the equipment work more stably, and extending the service life of the equipment; the reciprocating screw one is rotatably connected to the inner wall of the moving frame, the circumferential surface of the pulley two contacts the inner wall of the keel frame, the circumferential surface of the limiting rod contacts the inner wall of the scraper, the bottom of the scraper contacts the base plate, the bottom of the moving rod contacts the base plate, the circumferential surface of the roller contacts the base plate, and the moving rod contacts the inner wall of the scraper.

[0008] The present invention, by adopting the above technical solution, can bring the following beneficial effects:

[0009] 1. This welding fixture for a child car seat frame utilizes the coordinated operation of a frame, electric slide rail, welding device, motor, rotating threaded rod, moving frame, limiting plate, bidirectional threaded rod, turntable, connecting plate, pressure plate, pulley, guide plate, adjusting backrest, adjusting bolt, and base plate. During reinforcement, the bidirectional threaded rod rotates to move the limiting plate, thus limiting and reinforcing the child car seat frame. This prevents deformation or damage to the frame due to excessive or insufficient local pressure, helps maintain the structural integrity and stability of the frame, and improves the quality of the welded parts. After limiting the welded parts, the moving frame moves to press the pressure plate firmly, preventing loosening during welding and improving the stability of the welded parts, making welding safer for workers.

[0010] 2. This welding fixture for a child seat frame, through the coordinated operation of the fixing block and the striking rod, presses the welded parts together while the pressure plate drives the striking rod to knock off the weld slag, thereby improving the safety of the child seat frame during long-term use and also improving the welding effect.

[0011] 3. This welding fixture for a child seat frame, through the coordinated operation of a rotating rod, a pressing block, a limiting block, a connecting rod, and a clamping plate, simultaneously presses the welded parts and drives the clamping plate to rotate, reinforcing the welded parts. This makes the welding more stable, prevents the seat frame from shaking during welding, and improves the welding accuracy.

[0012] 4. This welding fixture for a child seat frame, through the coordinated operation of a reciprocating screw, a pulley, and a scraper, cleans the residual welding slag on the base plate after the welding parts are welded, by moving the frame to drive the scraper to move back and forth, further protecting the equipment, making the equipment more stable during operation, improving the stability of the equipment, and improving the working efficiency of the equipment.

[0013] 5. This welding fixture for a child seat frame, through the coordinated operation of a limiting rod, a reciprocating screw, rollers, and a moving rod, cleans the base plate while the scraper drives the moving rod to move back and forth, thereby increasing the cleaning area of ​​the scraper, preventing blind spots when cleaning welding slag, improving the cleaning effect of the equipment, making the equipment work more stably, and extending the service life of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the limiting plate structure of the present invention;

[0016] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the adjustable backrest structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the striking rod structure of the present invention;

[0019] Figure 6 For the present invention Figure 5 Enlarged view of the structure at point B in the middle;

[0020] Figure 7 This is a schematic diagram of the scraper structure of the present invention;

[0021] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point C.

[0022] In the diagram: 1. Frame; 2. Electric slide rail; 3. Welding device; 4. Motor; 5. Rotating threaded rod; 6. Moving frame; 7. Reinforcing mechanism; 71. Fixing block; 72. Striking rod; 73. Rotating rod; 74. Mortgaging block; 75. Limiting block; 76. Connecting rod; 77. Clamping plate; 8. Cleaning mechanism; 81. Reciprocating screw one; 82. Pulley two; 83. Scraper; 84. Limiting rod; 85. Reciprocating screw two; 86. Roller; 87. Moving rod; 9. Limiting plate; 10. Bidirectional threaded rod; 11. Turntable; 12. Connecting plate; 13. Pressure plate; 14. Pulley one; 15. Guide plate; 16. Adjusting back plate; 17. Adjusting bolt; 18. Base plate. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1 - Figure 8One embodiment of the present invention is: a welding fixture for a child seat frame, comprising a frame 1, an electric slide rail 2 installed on the inner wall of the frame 1, a welding device 3 installed on the outer surface of the electric slide rail 2, a motor 4 fixedly connected to the inner wall of the frame 1, a rotating threaded rod 5 fixedly connected to the output end of the motor 4, a movable frame 6 threadedly connected to the circumferential surface of the rotating threaded rod 5, a bidirectional threaded rod 10 rotatably connected to the inner wall of the movable frame 6, a turntable 11 fixedly connected to the left side of the bidirectional threaded rod 10, a limiting plate 9 threadedly connected to the circumferential surface of the bidirectional threaded rod 10, a reinforcing mechanism 7 for assisting in reinforcing the seat frame provided on the inner wall of the limiting plate 9, an adjusting backrest 16 installed on the inner wall of the limiting plate 9, and an adjusting backrest 16 threadedly connected to the inner wall of the limiting plate 9. The inner wall of the movable frame 6 is equipped with a cleaning mechanism 8 for cleaning welding slag, and a connecting plate 12 is fixedly connected to the inner wall of the movable frame 6. After the child seat frame is placed in, the operator manually cranks the turntable 11 to rotate it. The turntable 11 drives the bidirectional threaded rod 10 to rotate. The rotation of the bidirectional threaded rod 10 drives the limiting plate 9 to move through the circumferential threaded groove to limit and reinforce the child seat frame. After reinforcement, the adjusting plate 16 is adjusted by manually rotating the adjusting bolt 17 to make the backrest angle more precise during the welding of the child seat frame. After the child seat frame is fixed, the motor 4 is started to work. The motor 4 drives the rotating threaded rod 5 to rotate through the output end. The rotating threaded rod 5 rotates through the circumferential threaded groove. The threaded groove drives the movable frame 6 to the corresponding position for welding, ensuring uniform pressure distribution and preventing deformation or damage to the frame due to excessive or insufficient local pressure. This helps maintain the structural integrity and stability of the frame, improves the quality of the welded parts, saves adjustment time during welding, and further improves welding efficiency. A pressure plate 13 is rotatably connected to the inner wall of the movable frame 6, and pulleys 14 are installed on both sides of the pressure plate 13. A guide plate 15 is fixedly connected to the inner wall of the keel frame 1, and a base plate 18 is fixedly connected to the bottom of the keel frame 1. After limiting the position of the welded parts, the movable frame 6 moves, driving the pressure plate 13 to move. The movement of the pressure plate 13 drives the pulleys 14 to move, and the pulleys 14 move through the circumferential surface of the guide plate 15. The pulley 14 moves downwards, which in turn moves the pressure plate 13 downwards to press the welded parts together, preventing them from loosening during welding and improving their stability, making the welding process safer for workers. The circumferential surface of the rotating threaded rod 5 is rotatably connected to the inner wall of the keel frame 1, and the circumferential surface of the limiting plate 9 is slidably connected to the inner wall of the moving frame 6. The circumferential surface of the adjusting bolt 17 is threadedly connected to the inner wall of the adjusting plate 16, the outer surface of the connecting plate 12 is in contact with the inner wall of the limiting plate 9, the moving frame 6 is slidably connected to the inner wall of the keel frame 1, the pressure plate 13 is in contact with the outer surface of the limiting plate 9, and the circumferential surface of the pulley 14 is in contact with the inner wall of the guide plate 15.

[0025] The reinforcement mechanism 7 includes a fixing block 71. A striking rod 72 is rotatably connected to the inner wall of the fixing block 71 via a torsion spring. A connecting rod 76 is rotatably connected to the inner wall of the limiting plate 9 via a torsion spring. A rotating rod 73 is fixedly connected to the circumferential surface of the connecting rod 76. While the welded parts are being pressed, the pressure plate 13 rotates, driving the striking rod 72 to rotate via its front inclined surface. After the welded parts are welded, the pressure plate 13 releases the reinforcement, and the striking rod 72 is reset via the torsion spring on the inner wall of the fixing block 71. The reset of the striking rod 72 knocks off the weld slag from the surface of the welded parts, improving the quality of the welded parts, eliminating stress concentration, effectively extending the service life of the welded parts, improving the safety of the child seat frame during long-term use, and also improving the welding effect. A pressing block 74 is fixedly connected to the side of the rotating rod 73 away from the limiting plate 9. A clamping plate 77 is fixedly connected to the circumference of the limiting plate 9, and a limiting block 75 is fixedly connected to the outer surface of the limiting plate 9. While pressing the welded parts, the pressure plate 13 rotates and drives the mortise block 74 to move through the bottom contact surface. The mortise block 74 drives the rotating rod 73 to move. The rotating rod 73 moves and drives the connecting rod 76 to rotate through the fixed point. The connecting rod 76 drives the clamping plate 77 to rotate to reinforce the welded parts, making the welding more stable and preventing the seat frame from shaking during welding, thus improving the welding accuracy. A fixing block 71 is fixedly connected to the outer surface of the limiting plate 9. The outer surface of the striking rod 72 contacts the limiting plate 9, and the bottom of the pressure plate 13 contacts the striking rod 72. The bottom of the pressure plate 13 contacts the mortise block 74, the rotating rod 73 contacts the side of the limiting plate 9 away from the clamping plate 77, and the clamping plate 77 contacts the side of the limiting plate 9 away from the rotating rod 73.

[0026] Working principle: During the welding of the child seat frame, a mechanical gripper places the child seat frame onto the moving frame 6. After the child seat frame is placed, the operator manually cranks the turntable 11, which drives the bidirectional threaded rod 10 to rotate. The rotation of the bidirectional threaded rod 10, through the circumferential threaded groove, moves the limiting plate 9 to limit and reinforce the child seat frame. After reinforcement, the adjusting bolt 17 is manually rotated to adjust the adjusting backrest 16, making the backrest angle more precise during welding. After the child seat frame is fixed, the motor 4 is started. The motor 4 drives the rotating threaded rod 5 through its output end, and the rotation of the threaded rod 5, through the circumferential threaded groove, moves the moving frame 6 to the corresponding position for welding. This ensures even pressure distribution, preventing deformation or damage to the frame due to excessive or insufficient local pressure. It helps maintain the structural integrity and stability of the frame, improves the quality of the welded parts, saves adjustment time during welding, and further improves welding efficiency. After limiting the welded parts, the moving frame 6 moves the pressure plate 13, which in turn moves the pulley 14. The pulley 14 moves downwards through contact with the inside of the guide plate 15 via its circumferential surface. The downward movement of the pulley 14 causes the pressure plate 13 to move downwards, pressing the welded parts firmly. This prevents the welded parts from loosening during welding, improves the stability of the welded parts during welding, and makes the welding process safer for workers.

[0027] While the welded parts are being pressed, the pressure plate 13 rotates, driving the striking rod 72 to rotate via the front inclined surface. After the welded parts are completed, the pressure plate 13 releases the reinforcement of the welded parts, and the striking rod 72 is reset by the torsion spring on the inner wall of the fixing block 71. The reset of the striking rod 72 knocks off the weld slag by striking the surface of the welded parts, resulting in better welded parts quality. Eliminating stress concentration can effectively extend the service life of the welded parts, improve the safety of the child seat frame during long-term use, and also improve the welding effect. While the welded parts are being pressed, the pressure plate 13 rotates, driving the pressing block 74 to move via the bottom contact surface. The pressing block 74 drives the rotating rod 73 to move, and the rotating rod 73 drives the connecting rod 76 to rotate via the fixed point. The connecting rod 76 drives the clamping plate 77 to rotate, reinforcing the welded parts and making the welding more stable. This prevents the seat frame from shaking during welding and improves the welding accuracy.

[0028] Please see Figure 1 - Figure 8Based on the above embodiments, in another embodiment of the present invention, the cleaning mechanism 8 includes a reciprocating screw 81, a pulley 82 fixedly connected to the circumferential surface of the reciprocating screw 81, and a scraper 83 movably connected to the circumferential surface of the reciprocating screw 81. After the welded parts are welded, the weld is moved by a mechanical claw. At this time, the moving frame 6 can be reset by rotating the threaded rod 5. The movement of the moving frame 6 moves the reciprocating screw 81, and the movement of the reciprocating screw 81 moves the pulley 82. The movement of the pulley 82 passes through the inner wall of the keel frame 1 via its circumferential surface. The contact between the two pulleys causes the pulley 82 to rotate, which in turn drives the reciprocating screw 81 to rotate. The reciprocating screw 81, through its reciprocating groove on the circumferential surface, drives the scraper 83 to move back and forth, cleaning the residual welding slag on the base plate 18. This prevents excessive welding slag from causing the moving frame 6 to malfunction or damage the equipment, further protecting the equipment and making its operation more stable and efficient. The inner wall of the scraper 83 is rotatably connected to the reciprocating screw 85, which is fixed on both its front and rear sides. A roller 86 is fixedly connected to the circumferential surface of a reciprocating screw 85, and a moving rod 87 is movably connected to the circumferential surface of the moving frame 6. A limit rod 84 is fixedly connected to the inner wall of the moving frame 6. While cleaning the base plate 18, the scraper 83 moves, driving the reciprocating screw 85 to move. The reciprocating screw 85 drives the roller 86 to move. The roller 86 contacts the base plate 18 through its circumferential surface, thereby causing the roller 86 to rotate. The roller 86 drives the reciprocating screw 85 to rotate. The rotation of the reciprocating screw 85 drives the moving rod 87 to move back and forth through the reciprocating groove on the circumferential surface, thus making the scraper... The larger cleaning area of ​​plate 83 prevents blind spots during welding slag removal, improves the cleaning effect of the equipment, makes the equipment work more stably, and extends the service life of the equipment; the reciprocating screw 81 is rotatably connected to the inner wall of the moving frame 6, the circumferential surface of pulley 82 contacts the inner wall of the keel frame 1, the circumferential surface of the limiting rod 84 contacts the inner wall of the scraper 83, the bottom of the scraper 83 contacts the base plate 18, the bottom of the moving rod 87 contacts the base plate 18, the circumferential surface of the roller 86 contacts the base plate 18, and the moving rod 87 contacts the inner wall of the scraper 83.

[0029] Working Principle: After the welded parts are completed, the mechanical gripper moves the weld. At this time, rotating the threaded rod 5 drives the moving frame 6 to reset. The movement of the moving frame 6 moves the reciprocating screw 81, which in turn moves the pulley 82. The pulley 82 contacts the inner wall of the keel frame 1 via its circumferential surface, causing it to rotate. This rotation of the pulley 82 then drives the reciprocating screw 81 to rotate. The reciprocating screw 81, through its reciprocating groove on its circumferential surface, moves the scraper 83 back and forth to clean the residual welding slag on the base plate 18. This prevents excessive welding slag from causing the moving frame 6 to malfunction or damage the equipment, further protecting the equipment and ensuring its smooth operation. The cleaning process is more stable during operation, improving equipment stability and efficiency. While cleaning the base plate 18, the scraper 83 moves, driving the reciprocating screw 85 to move. The reciprocating screw 85 then moves the roller 86, which contacts the base plate 18 via its circumferential surface, causing it to rotate. This rotation of the roller 86, in turn, drives the reciprocating screw 85 to rotate. The reciprocating screw 85, through its circumferential groove, moves the moving rod 87 back and forth, resulting in a larger cleaning area for the scraper 83. This prevents blind spots during welding slag removal, improves the cleaning effect, enhances equipment stability, and extends the equipment's lifespan.

[0030] This invention provides a welding fixture for a child car seat frame. Many methods and approaches exist to implement this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A welding fixture for a child seat frame, comprising a keel frame (1), characterized in that: An electric slide rail (2) is installed on the inner wall of the keel frame (1), and a welding device (3) is installed on the outer surface of the electric slide rail (2). A motor (4) is fixedly connected to the inner wall of the keel frame (1), and a rotating threaded rod (5) is fixedly connected to the output end of the motor (4). A movable frame (6) is threadedly connected to the circumferential surface of the rotating threaded rod (5). A bidirectional threaded rod (10) is rotatably connected to the inner wall of the movable frame (6). A turntable (11) is fixedly connected to the left side of the bidirectional threaded rod (10). A limit plate (9) is threadedly connected to the circumferential surface of the bidirectional threaded rod (10). The inner wall of the limit plate (9) is provided with... The reinforcement mechanism (7) is used to reinforce the seat frame. The inner wall of the limiting plate (9) is equipped with an adjusting backrest (16). The inner wall of the limiting plate (9) is threaded with an adjusting bolt (17). The inner wall of the moving frame (6) is provided with a cleaning mechanism (8) for cleaning welding slag. The inner wall of the moving frame (6) is fixedly connected with a connecting plate (12). The inner wall of the moving frame (6) is rotatably connected with a pressure plate (13). The two sides of the pressure plate (13) are equipped with pulleys (14). The inner wall of the keel frame (1) is fixedly connected with a guide plate (15). The bottom of the keel frame (1) is fixedly connected with a base plate (18). The circumferential surface of the rotating threaded rod (5) is rotatably connected to the inner wall of the keel frame (1), and the circumferential surface of the limiting plate (9) is slidably connected to the inner wall of the movable frame (6). The circumferential surface of the adjusting bolt (17) is threadedly connected to the inner wall of the adjusting plate (16), the outer surface of the connecting plate (12) is in contact with the inner wall of the limiting plate (9), the movable frame (6) is slidably connected to the inner wall of the keel frame (1), the pressure plate (13) is in contact with the outer surface of the limiting plate (9), and the circumferential surface of the pulley (14) is in contact with the inner wall of the guide plate (15). The reinforcement mechanism (7) includes a fixing block (71), the inner wall of the fixing block (71) is rotatably connected to a striking rod (72) via a torsion spring, the inner wall of the limiting plate (9) is rotatably connected to a connecting rod (76) via a torsion spring, a rotating rod (73) is fixedly connected to the circumferential surface of the connecting rod (76), a mortise block (74) is fixedly connected to the side of the rotating rod (73) away from the limiting plate (9), a clamping plate (77) is fixedly connected to the circumference of the connecting rod (76), and a limiting block (75) is fixedly connected to the outer surface of the limiting plate (9). A fixing block (71) is fixedly connected to the outer surface of the limiting plate (9), the outer surface of the striking rod (72) is in contact with the limiting plate (9), and the bottom of the pressure plate (13) is in contact with the striking rod (72). The bottom of the pressure plate (13) is in contact with the collateral block (74), the rotating rod (73) is in contact with the side of the limiting plate (9) away from the clamping plate (77), and the clamping plate (77) is in contact with the side of the limiting plate (9) away from the rotating rod (73). The cleaning mechanism (8) includes a reciprocating screw (81), a pulley (82) is fixedly connected to the circumferential surface of the reciprocating screw (81), a scraper (83) is movably connected to the circumferential surface of the reciprocating screw (81), a reciprocating screw (85) is rotatably connected to the inner wall of the scraper (83), rollers (86) are fixedly connected to the front and rear sides of the reciprocating screw (85), a moving rod (87) is movably connected to the circumferential surface of the reciprocating screw (85), and a limiting rod (84) is fixedly connected to the inner wall of the moving frame (6). The reciprocating screw (81) is rotatably connected to the inner wall of the movable frame (6), the circumferential surface of the pulley (82) is in contact with the inner wall of the keel frame (1), the circumferential surface of the limiting rod (84) is in contact with the inner wall of the scraper (83), the bottom of the scraper (83) is in contact with the base plate (18), the bottom of the movable rod (87) is in contact with the base plate (18), the circumferential surface of the roller (86) is in contact with the base plate (18), and the movable rod (87) is in contact with the inner wall of the scraper (83).

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