CN116896228B - Servo motor device of quick sliding door - Google Patents

Abstract

The invention relates to the technical field of servo motors, and discloses a fast sliding door servo motor device, which includes a door frame. The top of the door frame is provided with a top cover, and the lower surface of the door frame is fixedly connected with a protective frame. A driving rod is connected to the interior of the gantry, and a roller is fixedly connected to the end of the driving rod. A screw hole plate is fixedly connected to the inner wall of the gantry, and a protective cover is threadedly connected to the surface of the screw hole plate. The protective cover is fixedly connected with a breathable mesh. The invention is provided with a heat dissipation component inside the protective cover. When the rotating rod rotates, the rotation of the protruding ring pushes the piston plate to move inside the air cylinder rod. When the piston plate moves, it squeezes the gas inside the air cylinder rod toward the protective cover. When the air pressure inside the protective cover increases, the heat generated by the servo motor moves to the breathable mesh through the extrusion of air pressure, so that the inside of the protective cover can be dissipated through the breathable mesh. A cleaning component is provided on the surface of the breathable mesh.

Description

A fast sliding door servo motor device

Technical field

The present invention relates to the technical field of servo motors, specifically a fast sliding door servo motor device.

Background technique

Most sliding doors are electric sliding doors, which have multi-functional characteristics. The door body has strict wind load resistance requirements and is suitable for installation on various factory building structures. This type of door leaf can be switched manually or electrically. The number of controllable door leaves is not too many. It is generally a single track and is divided into two types: lower load-bearing and upper load-bearing;

Sliding doors are generally used outside. The servo motor is installed inside the sliding door and is easily affected by the external environment. During the operation of the servo motor, the internal parts will generate heat. When the weather is hot, the internal parts of the servo motor will Heat is easily stored inside, causing damage to the parts inside the servo motor.

Contents of the invention

The object of the present invention is to provide a fast sliding door servo motor device to solve the problems raised in the above background technology.

In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

The invention is a fast sliding door servo motor device, which includes a door frame. The top of the door frame is provided with a top cover. The lower surface of the door frame is fixedly connected with a protective frame. The interior of the door frame is sleeved with a drive. Rod, the end of the driving rod is fixedly connected with a roller, the inner wall of the door frame is fixedly connected with a screw hole plate, the surface of the screw hole plate is threadedly connected with a protective cover, and the protective cover is fixedly connected with a breathable mesh. A servo motor is fixedly connected to the inside of the protective cover, and a rotating rod is fixedly connected to the output end of the servo motor. After the servo motor is energized, the rotating rod drives the driving wheel to rotate through the servo motor, and the driving wheel drives the driving wheel through meshing with the gear. The rod rotates, and the roller is set at the lower end of the protective frame through the rotation of the driving rod, so that the roller can drive the mast to move, so that the mast can push the translation door to shrink and extend. A breathable mesh is provided on the surface of the protective cover. Through the breathable mesh To discharge the heat generated by the servo motor to the outside, the end of the protective cover away from the screw hole plate is threadedly connected to a sealing plate, the surface of the rotating rod is fixedly connected to a driving wheel, the surface of the driving rod is fixedly connected to a gear, and it also includes :

Heat dissipation component. The surface of the rotating rod is fixedly connected with a protruding ring. The protruding ring is composed of a circular ring plate and four circular ring bumps equally spaced on the outer wall of the circular ring plate. The heat dissipation component It includes an air cylinder rod, which is fixedly connected to the inner wall of the protective cover. A piston plate is provided inside the air cylinder rod, and a push rod is fixedly connected to the surface of the piston plate;

Cleaning component, the cleaning component includes a chute block, the chute block is fixedly connected to the surface of the protective cover, a slider is slidingly connected to the inside of the chute block, and one end of the slider away from the chute block is fixedly connected. There is a bristle board;

Exhaust component, the exhaust component includes a circular ring frame, the circular ring frame is fixedly connected to the surface of the protective cover, the inner wall of the circular ring frame is connected with an extension ring, and the surface of the extension ring is provided with air holes.

Further, the air outlet end and the air inlet end of the air cylinder rod are respectively provided with one-way valves, and the surface of the piston plate is provided with a one-way valve. The piston plate is slidingly connected to the inner wall of the air cylinder rod, and the rotating rod passes through The sealing plate extends to the outer end of the protective cover, and the air inlet end of the air cylinder rod extends to the outer end of the protective cover.

Further, the heat dissipation component includes a fixed plate, an end of the fixed plate is fixedly connected to the inner wall of the protective cover, an elastic rod is fixedly connected to the surface of the fixed plate, and an end of the elastic rod away from the fixed plate is fixedly connected. Mobile frame, the end of the mobile frame is hinged with an inclined rod, the inclined rod is hinged with the end of the push rod, and the surface of the mobile frame is fixedly connected with the inclined frame;

The push rod penetrates the air cylinder rod and extends to the outer end of the air cylinder rod.

Further, two inclined rods are provided at the end of the mobile frame. One end of the two inclined rods away from the push rod is slidingly connected to the inner wall of the protective cover. The two inclined rods are arranged symmetrically with the mobile frame as the center. The inclined frame is in contact with the surface of the protruding ring.

Further, the cleaning component includes a synchronizing rod, the synchronizing rod is fixedly connected to the surface of the inclined frame, the end of the synchronizing rod away from the inclined frame is fixedly connected to an extension frame, and the end of the extension frame is fixedly connected to a cylindrical rod. , the surface of the cylindrical rod is hinged with an elastic rod, and the elastic rod is hinged with the end of the slider;

Two cylindrical rods are provided on the surface of the extension frame.

Further, the slide block is slidingly connected to the inner wall of the chute block, the bristle plate is in contact with the surface of the breathable mesh, and the end of the synchronizing rod away from the inclined frame penetrates the protective cover and extends to the outer end of the protective cover.

Further, two elastic rods are provided on the surface of the cylindrical rod, and the two elastic rods are arranged perpendicularly to the cylindrical rod, and the bristle plate is located at the end of the chute block.

Further, the exhaust component includes a connecting pipe, the connecting pipe is connected with the air inlet end of the pump rod, and a round hole is provided on the surface of the connecting pipe;

There are several circular holes.

Further, the annular frame is provided at an end of the breathable mesh away from the inflator rod, and the connecting pipe is provided at the outer end of the protective cover.

The invention has the following beneficial effects:

The invention is provided with a heat dissipation component inside the protective cover. When the rotating rod rotates, the rotation of the protruding ring pushes the piston plate to move inside the air cylinder rod. When the piston plate moves, it squeezes the gas inside the air cylinder rod toward the protective cover. When the air pressure inside the protective cover increases, the heat generated by the servo motor moves to the breathable mesh through the extrusion of the air pressure, so that the inside of the protective cover can be dissipated through the breathable mesh. A cleaning component is provided on the surface of the breathable mesh. Use cleaning components to clean the surface of the breathable mesh to prevent dust from adhering to the surface of the breathable mesh, which will reduce the heat dissipation efficiency of the breathable mesh. An exhaust component is provided at the end of the protective cover. The exhaust component removes the heat inside the protective cover. Absorb, increase the flow speed of gas inside the protective cover, and speed up the heat dissipation efficiency of the servo motor.

When the protruding ring of the present invention rotates through the rotating rod, the protruding ring squeezes the movable frame through the inclined frame and moves toward one end of the fixed plate. When the moving frame moves, it pushes the inclined rod to expand toward both ends. When the inclined rod expands, it pushes the The rod pushes the piston plate to move to the inside of the air cylinder rod, so that the piston plate can push the gas inside the air cylinder rod into the inside of the protective cover. The heat generated by the gas extrusion of the servo motor flows outward to prevent heat from being stored inside the protective cover. , causing the parts of the servo motor to be damaged.

When the movable frame of the present invention moves to one end of the fixed plate, the movable frame will push the extension frame to move to the outer end of the protective cover through the synchronization rod. When the extension frame moves, it pulls the slider through the cylindrical rod to slide inside the chute block. When the block is moving, the surface of the breathable mesh is cleaned through the bristle board to avoid dust accumulation on the surface of the breathable mesh, causing poor air flow efficiency inside the protective cover.

When the piston plate of the present invention moves to the inside of the air cylinder rod, the air cylinder rod generates suction force through the movement of the piston plate. The suction force enters the inside of the connecting pipe through the air inlet end and is transmitted to the inside of the ring frame through the connecting pipe. The suction force inside the protective cover The heat is sucked into the inside of the ring frame through the extension ring, so that the heat generated by the servo motor can be quickly discharged from the inside of the protective cover, improving the heat dissipation efficiency of the servo motor.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to describe the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic cross-sectional structural diagram of the door frame of the present invention;

Figure 3 is a schematic structural diagram of the driving wheel of the present invention;

Figure 4 is a schematic structural diagram of the servo motor of the present invention;

Figure 5 is a schematic diagram of the protruding circular ring structure of the present invention;

Figure 6 is a schematic diagram of the overall structure of the heat dissipation component of the present invention;

Figure 7 is a schematic diagram of the overall structure of the cleaning component of the present invention;

Figure 8 is a schematic diagram of the overall structure of the exhaust component of the present invention.

In the drawings, the parts represented by each symbol are listed as follows:

In the picture: 1. Mast; 2. Top cover; 3. Protective frame; 4. Roller; 5. Driving rod; 6. Gear; 7. Driving wheel; 8. Sealing plate; 9. Screw plate; 10. Protection Cover; 11. Breathable mesh; 12. Rotary rod; 13. Servo motor; 15. Heat dissipation parts; 16. Cleaning parts; 17. Exhaust parts; 18. Protruding ring; 20. Inflator rod; 21. One-way valve ; 22. Piston plate; 23. Push rod; 24. Moving frame; 25. Inclined rod; 26. Inclined frame; 27. Fixed plate; 28. Elastic rod; 30. Synchronous rod; 31. Extension frame; 32. Slider ; 33. Elastic rod; 34. Cylindrical rod; 35. Slide block; 36. Brushing plate; 40. Connecting pipe; 41. Round hole; 42. Ring frame; 43. Extension ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1 to 8. The present invention is a fast sliding door servo motor device, which includes a door frame 1. A top cover 2 is provided on the top of the door frame 1, and a protective frame 3 is fixedly connected to the lower surface of the door frame 1. , a driving rod 5 is sleeved inside the mast 1, the end of the driving rod 5 is fixedly connected with a roller 4, the inner wall of the mast 1 is fixedly connected with a screw plate 9, and the surface of the screw plate 9 is threadedly connected with a protective cover 10 , the protective cover 10 is fixedly connected with the breathable mesh 11, the inside of the protective cover 10 is fixedly connected with the servo motor 13, the output end of the servo motor 13 is fixedly connected with the rotating rod 12, the present invention is provided with a heat dissipation component 15 inside the protective cover 10, When the rotating rod 12 rotates, the piston plate 22 is pushed by the rotation of the protruding ring 18 to move inside the air cylinder rod 20. When the piston plate 22 moves, it squeezes the gas inside the air cylinder rod 20 and discharges it to the inside of the protective cover 10. The protective cover 10 When the air pressure inside 10 increases, the heat generated by the servo motor 13 moves to the breathable mesh 11 through the extrusion of the air pressure, so that the inside of the protective cover 10 can be dissipated through the breathable mesh 11. A cleaning component is provided on the surface of the breathable mesh 11 16. Use the cleaning component 16 to clean the surface of the breathable mesh 11 to prevent dust from adhering to the surface of the breathable mesh 11, which will reduce the heat dissipation efficiency of the breathable mesh 11. An exhaust component 17 is provided at the end of the protective cover 10. The gas component 17 absorbs the heat inside the protective cover 10, increases the flow speed of the gas inside the protective cover 10, and accelerates the heat dissipation efficiency of the servo motor 13. The end of the protective cover 10 away from the screw hole plate 9 is threadedly connected with a sealing plate 8. The surface of the rotating rod 12 is fixedly connected with the driving wheel 7, and the surface of the driving rod 5 is fixedly connected with the gear 6, which also includes:

The heat dissipation component 15 is fixedly connected to the surface of the rotating rod 12 with a protruding ring 18. The protruding ring 18 is composed of a ring plate and four ring bumps equidistantly distributed on the outer wall of the ring plate. The heat dissipation part 15 includes The air cylinder rod 20 is fixedly connected to the inner wall of the protective cover 10. A piston plate 22 is provided inside the air cylinder rod 20, and a push rod 23 is fixedly connected to the surface of the piston plate 22;

Cleaning component 16. The cleaning component 16 includes a chute block 35. The chute block 35 is fixedly connected to the surface of the protective cover 10. A slide block 32 is slidably connected inside the chute block 35. One end of the slide block 32 away from the chute block 35 is fixed. Connected with bristle board 36;

The exhaust component 17 includes an annular frame 42, which is fixedly connected to the surface of the protective cover 10. The inner wall of the annular frame 42 is connected with an extension ring 43, and the surface of the extension ring 43 is provided with air holes.

The air outlet end and the air inlet end of the air cylinder rod 20 are respectively provided with a one-way valve 21. The surface of the piston plate 22 is provided with a one-way valve 21. The piston plate 22 is slidingly connected to the inner wall of the air cylinder rod 20. The rotating rod 12 penetrates the sealing plate 8 and Extending to the outer end of the protective cover 10, when the protruding ring 18 of the present invention is rotated by the rotating rod 12, the protruding ring 18 squeezes the movable frame 24 through the inclined frame 26 and moves toward one end of the fixed plate 27, and the movable frame 24 is moving. When the inclined rod 25 is expanded, the inclined rod 25 pushes the piston plate 22 to move toward the inside of the gas cylinder rod 20 through the push rod 23, so that the piston plate 22 can push the gas inside the gas cylinder rod 20 into the protective cover 10 Inside, the heat generated by the gas extrusion of the servo motor 13 flows outward to prevent the heat from being stored inside the protective cover 10 and causing damage to the parts of the servo motor 13. The air inlet end of the pump rod 20 extends to the outside of the protective cover 10. end.

The heat dissipation component 15 includes a fixed plate 27. The end of the fixed plate 27 is fixedly connected to the inner wall of the protective cover 10. The surface of the fixed plate 27 is fixedly connected with an elastic rod 28. One end of the elastic rod 28 away from the fixed plate 27 is fixedly connected with a movable frame 24. , the end of the mobile frame 24 is hinged with an inclined rod 25, the inclined rod 25 is hinged with the end of the push rod 23, and the surface of the mobile frame 24 is fixedly connected with an inclined frame 26;

The push rod 23 penetrates the air cylinder rod 20 and extends to the outer end of the air cylinder rod 20 .

Two inclined rods 25 are provided at the end of the moving frame 24. One end of the two inclined rods 25 away from the push rod 23 is slidingly connected to the inner wall of the protective cover 10. The two inclined rods 25 are symmetrically arranged with the moving frame 24 as the center. 26 is in contact with the surface of the protruding ring 18 .

The cleaning component 16 includes a synchronizing rod 30, which is fixedly connected to the surface of the inclined frame 26. The end of the synchronizing rod 30 away from the inclined frame 26 is fixedly connected to an extension frame 31, and the end of the extension frame 31 is fixedly connected to a cylindrical rod 34. The surface of the rod 34 is hinged with an elastic rod 33. When the movable frame 24 of the present invention moves to one end of the fixed plate 27, the movable frame 24 will push the extension frame 31 to move to the outer end of the protective cover 10 through the synchronization rod 30, and the extension frame 31 is moving. When the slide block 32 is pulled by the cylindrical rod 34, it slides inside the chute block 35. When the chute block 35 moves, the surface of the breathable mesh 11 is cleaned through the bristle plate 36 to prevent dust from accumulating on the surface of the breathable mesh 11 and causing protection. The air flow efficiency inside the cover 10 is not good, and the end of the elastic rod 33 and the slider 32 is hinged;

Two cylindrical rods 34 are provided on the surface of the extension frame 31 .

The slide block 32 is slidingly connected to the inner wall of the slide block 35 , the bristle plate 36 is in contact with the surface of the breathable mesh 11 , and the end of the synchronization rod 30 away from the inclined frame 26 penetrates the protective cover 10 and extends to the outer end of the protective cover 10 .

Two elastic rods 33 are provided on the surface of the cylindrical rod 34. The two elastic rods 33 are arranged perpendicularly to the cylindrical rod 34. The bristle plate 36 is located at the end of the chute block 35.

The exhaust component 17 includes a connecting pipe 40 that communicates with the air inlet end of the pump rod 20. When the piston plate 22 of the present invention moves toward the inside of the pump rod 20, the pump rod 20 generates suction force through the movement of the piston plate 22. The suction force It enters the inside of the connecting pipe 40 through the air inlet end, and is transmitted to the inside of the annular frame 42 through the connecting pipe 40. The heat inside the protective cover 10 is sucked into the inside of the annular frame 42 through the extension ring 43, causing the servo motor 13 to generate The heat can be quickly discharged from the inside of the protective cover 10 to improve the heat dissipation efficiency of the servo motor 13. A round hole 41 is provided on the surface of the connecting pipe 40;

There are several circular holes 41 provided.

The ring frame 42 is provided at an end of the breathable mesh 11 away from the inflator rod 20 , and the connecting pipe 40 is provided at the outer end of the protective cover 10 .

During use, a heat dissipation component 15 is provided inside the protective cover 10. When the rotating rod 12 rotates, the rotation of the protruding ring 18 pushes the piston plate 22 to move inside the air cylinder rod 20. The piston plate 22 squeezes the air cylinder when moving. The gas inside the rod 20 is discharged to the inside of the protective cover 10. When the air pressure inside the protective cover 10 increases, the heat generated by the servo motor 13 moves to the breathable mesh 11 through the extrusion of the air pressure, so that the protective cover 10 can be affected by the breathable mesh 11. To dissipate heat inside, a cleaning component 16 is provided on the surface of the breathable mesh 11. The cleaning component 16 cleans the surface of the breathable mesh 11 to prevent dust from adhering to the surface of the breathable mesh 11, which will reduce the heat dissipation efficiency of the breathable mesh 11. An exhaust component 17 is provided at the end of the protective cover 10. The exhaust component 17 absorbs the heat inside the protective cover 10, increases the flow speed of the gas inside the protective cover 10, speeds up the heat dissipation efficiency of the servo motor 13, and protrudes When the ring 18 is rotated by the rotating rod 12, the protruding ring 18 squeezes the movable frame 24 through the inclined frame 26 and moves toward one end of the fixed plate 27. When the movable frame 24 moves, it pushes the inclined rod 25 to expand toward both ends, and the inclined rod 25 During expansion, the push rod 23 pushes the piston plate 22 to move toward the inside of the inflator rod 20, so that the piston plate 22 can push the gas inside the inflator rod 20 into the inside of the protective cover 10, and the heat generated by the gas extrusion of the servo motor 13 moves toward the inside of the inflator rod 20. external flow to prevent heat from being stored inside the protective cover 10 and causing damage to the parts of the servo motor 13. When the movable frame 24 moves to one end of the fixed plate 27, the movable frame 24 will push the extension frame 31 toward the protective cover through the synchronization rod 30. The outer end of 10 moves. When the extension frame 31 moves, it pulls the slider 32 through the cylindrical rod 34 to slide inside the chute block 35. When the chute block 35 moves, it cleans the surface of the breathable mesh 11 through the brush plate 36 to avoid Dust accumulates on the surface of the breathable mesh 11, resulting in poor air flow efficiency inside the protective cover 10. When the piston plate 22 moves toward the inside of the pump rod 20, the pump rod 20 generates suction through the movement of the piston plate 22, and the suction force passes through the air inlet end. Entering the inside of the connecting pipe 40 and transmitted to the inside of the annular frame 42 through the connecting pipe 40, the heat inside the protective cover 10 is sucked into the inside of the annular frame 42 through the extension ring 43, so that the heat generated by the servo motor 13 can be quickly The inside of the protective cover 10 is discharged to improve the heat dissipation efficiency of the servo motor 13 .

The preferred embodiments of the invention disclosed above are only intended to help illustrate the invention. The preferred embodiments do not describe all details, nor do they limit the invention to the specific implementations described. Obviously, many modifications and variations are possible in light of the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (1)

1. A fast sliding door servo motor device, including a door frame (1), a top cover (2) is provided on the top of the door frame (1), and a protective frame is fixedly connected to the lower surface of the door frame (1) (3). A driving rod (5) is sleeved inside the gantry (1). The end of the driving rod (5) is fixedly connected with a roller (4). The inner wall of the gantry (1) is fixed. A screw hole plate (9) is connected, and a protective cover (10) is threadedly connected to the surface of the screw hole plate (9). The protective cover (10) is fixedly connected with a breathable mesh (11). The protective cover (10) ) is fixedly connected with a servo motor (13) inside, the output end of the servo motor (13) is fixedly connected with a rotating rod (12), and one end of the protective cover (10) away from the screw hole plate (9) is threadedly connected with The sealing plate (8) has a driving wheel (7) fixedly connected to the surface of the rotating rod (12), and a gear (6) fixedly connected to the surface of the driving rod (5). It is characterized in that it also includes: The heat dissipation component (15), the surface of the rotating rod (12) is fixedly connected with a protruding ring (18), the protruding ring (18) is composed of a ring plate and equidistantly distributed on the outer wall of the ring plate. It consists of four annular bumps. The heat dissipation component (15) includes an inflator rod (20). The inflator rod (20) is fixedly connected to the inner wall of the protective cover (10). The inner wall of the inflator rod (20) is arranged There is a piston plate (22), and a push rod (23) is fixedly connected to the surface of the piston plate (22); Cleaning component (16). The cleaning component (16) includes a chute block (35). The chute block (35) is fixedly connected to the surface of the protective cover (10). The inside of the chute block (35) A slider (32) is slidably connected, and a bristle plate (36) is fixedly connected to one end of the slider (32) away from the chute block (35); Exhaust component (17). The exhaust component (17) includes a circular ring frame (42). The circular ring frame (42) is fixedly connected to the surface of the protective cover (10). The circular ring frame (42) An extension ring (43) is connected to the inner wall of the extension ring (43), and air holes are provided on the surface of the extension ring (43); The air outlet end and air inlet end of the air cylinder rod (20) are respectively provided with one-way valves (21), and the surface of the piston plate (22) is provided with a one-way valve (21). The piston plate (22) and The inner wall of the air cylinder rod (20) is slidingly connected, the rotating rod (12) penetrates the sealing plate (8) and extends to the outer end of the protective cover (10), and the air inlet end of the air cylinder rod (20) extends to the protective cover. The outer end of (10); The heat dissipation component (15) includes a fixed plate (27), the end of the fixed plate (27) is fixedly connected to the inner wall of the protective cover (10), and the surface of the fixed plate (27) is fixedly connected with an elastic rod ( 28), one end of the elastic rod (28) away from the fixed plate (27) is fixedly connected with a movable frame (24), and the end of the movable frame (24) is hinged with an inclined rod (25), and the inclined rod (25) 25) Hinged with the end of the push rod (23), the surface of the mobile frame (24) is fixedly connected with an inclined frame (26); The push rod (23) penetrates the air cylinder rod (20) and extends to the outer end of the air cylinder rod (20); Two inclined rods (25) are provided at the end of the mobile frame (24). One end of the two inclined rods (25) away from the push rod (23) is slidingly connected to the inner wall of the protective cover (10). The inclined rod (25) is arranged symmetrically with the moving frame (24) as the center, and the inclined frame (26) is in contact with the surface of the protruding ring (18); The cleaning component (16) includes a synchronizing rod (30), which is fixedly connected to the surface of the inclined frame (26). One end of the synchronizing rod (30) away from the inclined frame (26) is fixedly connected with Extension frame (31), the end of the extension frame (31) is fixedly connected with a cylindrical rod (34), the surface of the cylindrical rod (34) is hinged with an elastic rod (33), the elastic rod (33) and The end of the slider (32) is hinged; Two cylindrical rods (34) are provided on the surface of the extension frame (31); The slide block (32) is slidingly connected to the inner wall of the chute block (35), the bristle plate (36) is in contact with the surface of the breathable mesh (11), and the synchronization rod (30) is away from the inclined frame (26). One end penetrates the protective cover (10) and extends to the outer end of the protective cover (10); Two elastic rods (33) are provided on the surface of the cylindrical rod (34). The two elastic rods (33) are arranged perpendicularly to the cylindrical rod (34). The bristle plate (36) is located on the chute block (33). 35) at the end; The exhaust component (17) includes a connecting pipe (40) that communicates with the air inlet end of the pump rod (20). A round hole (41) is provided on the surface of the connecting pipe (40). ); There are several circular holes (41); The ring frame (42) is provided at one end of the breathable mesh (11) away from the inflator rod (20), and the connecting pipe (40) is provided at the outer end of the protective cover (10).