Door and window ceiling structure of residential building

Abstract

The invention discloses a door and window ceiling structure of a residential building, and belongs to the field of door and window ceilings. Comprising two mounting plates, a plurality of supporting frames are fixedly connected to the upper surfaces of the mounting plates, clamping bases are jointly clamped to the top ends of the supporting frames on the same side, a ceiling body is jointly and fixedly connected to the tops of the two clamping bases, a notch is formed in the right side of the upper surface of the ceiling body, and the top of the ceiling body is provided with a plurality of supporting frames. A glass window is fixedly mounted on the inner side of the notch; a ventilation box is fixedly mounted on the inner side of the ceiling body; the ceiling body is clamped with the supporting frame through the clamping base, dismounting and mounting are convenient, the mounting plate is used for being fixedly mounted on the top of an assembly house, the glass window is used for transmitting light of the top and improving the light transmission of the ceiling body, and the ventilation box communicates with a ventilation box mounted externally through a ventilation pipe and is used for achieving the indoor and outdoor ventilation effect after the ceiling body is mounted.

Description

Technical Field

[0001] The invention relates to the field of door, window and ceiling, and in particular to a door, window and ceiling structure of a residential building. Background Art

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connection methods. Prefabricated buildings adopt standardized design, factory production, assembly construction, and information management. They are representatives of modern, industrialized production methods. For this reason, prefabricated ceilings are often used in prefabricated buildings; Patent: CN219471390U discloses an assembled ceiling, including an inclined plate, brackets are fixedly connected to both sides of the lower part of the inclined plate, a crossbeam is fixedly connected between the two brackets, a support rod is arranged on the lower side of the bracket, a mounting plate is fixedly connected to the bottom of the support rod, a connecting frame is fixedly connected to the lower side of the middle part of the crossbeam, a winding shaft is rotatably connected to the inner side of the connecting frame, a mounting block is fixedly connected to the lower part of the opposite side between the two brackets, a limiting block is slidably connected to one side of the mounting block, and a clamping block is fixedly connected to the middle part of the limiting block. In this device, after the assembled ceiling components are assembled, they can be conveniently and quickly installed and fixed on the roof, thereby improving the installation efficiency of the ceiling. At the same time, the ceiling can discharge the airflow below on windy days to prevent the airflow from hitting the ceiling, thereby improving the stability of the ceiling. The ceiling in the above technology does not have ventilation effect, and has no glass windows, and has poor light transmittance. During disassembly and installation, the card block is pulled out of the inside of the support rod by a pull rope, and the pull rope is easily broken when controlling the disassembly. In addition, the support rod is engaged by a single card block, and the engagement effect is poor, which needs to be improved. For this reason, we propose a door and window ceiling structure for a residential building. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a ceiling with good ventilation effect and good light transmittance; another purpose of the present invention is to provide a ceiling that can be installed by snapping together a plurality of card blocks.

[0004] Technical solution: A door and window ceiling structure for a residential building, comprising a mounting plate, two mounting plates, a plurality of support frames fixedly connected to the upper surface of the mounting plate, a snap-fit ​​seat commonly engaged at the top ends of the plurality of support frames on the same side, a ceiling body commonly fixedly connected at the top ends of the two snap-fit ​​seats, a notch opened on the right side of the upper surface of the ceiling body, a glass window fixedly installed inside the notch; A ventilation box is fixedly installed on the inner side of the ceiling body, and a ventilation pipe is fixedly connected to the outer side wall of the ventilation box. One end of the ventilation pipe away from the ventilation box passes through the inner side of the recess and is fixedly connected to the ventilation box. A fixing strip is symmetrically fixedly connected to the inner lower surface of the ventilation box, a motor is fixedly connected to the upper right side of the fixing strip, and a card connector is fixedly connected to the right end of the output shaft of the motor; Two shaft columns are fixedly connected to the right side of the interior of the ventilation box, a fan blade is fixedly connected to the left end of the shaft column, a cylinder is fixedly connected to the left center of the fan blade, a round tube is slidably connected to the outer wall of the cylinder, a card seat is fixedly connected to the left end of the card seat, and a card interface is provided on the left side of the card seat; The right end of the circular tube is located outside the shaft column and is rotatably connected to a push plate via a rotating shaft, and an electric telescopic rod is fixedly connected between the lower right side of the fixing bar and the left side of the push plate.

[0005] Furthermore, the opposite sides of the two supporting frames opposite to each other on the left and right are provided with bayonet holes.

[0006] Furthermore, the opposite sides of the two opposite left and right engaging seats are fixedly connected with a plurality of beams, the interior of the beams is slidably connected with two clamping blocks, and the back sides of the two opposite left and right clamping blocks are respectively engaged with the interior of the two opposite left and right bayonet ports.

[0007] Furthermore, a plurality of the cross beams are connected by an axle rod for common rotation via a rotating shaft, the outer side walls of the axle rod are located inside the plurality of cross beams and are fixedly connected to a double-headed cam, the front surface of the double-headed cam is connected to a traction plate for rotation via a rotating shaft, the front surface of the traction plate is connected to a rotating connecting member for rotation via a rotating shaft, the end of the rotating connecting member away from the traction plate is fixedly connected to a sliding plate, and a cross bar is fixedly connected between the sliding plate and the block.

[0008] Furthermore, the front end of the shaft rod is fixedly connected to a turntable, and the front surface of the cross beam located in front of the inner side of the ceiling body is located on the outer side of the shaft rod and has two positioning holes. The front surface of the turntable is provided with a positioning column, and the rear end of the positioning column passes through the turntable and is slidably connected to the turntable, and a spring is fixedly connected between the positioning column and the turntable.

[0009] Furthermore, an arc groove is provided on the left side of the card seat, a movable block is slidably connected to the inner side of the arc groove, a spring 2 is fixedly connected between the movable block and the arc groove, and the left side of the movable block is fixedly connected to the right side of the card interface.

[0010] Furthermore, the outer side wall of the shaft column is fixedly connected with a transmission wheel, and the outer side walls of the two transmission wheels are commonly transmission-connected with a transmission belt.

[0011] Furthermore, a telescopic air pipe is fixedly connected between the fixing strip and the pushing plate and above the electric telescopic rod, an air box is fixedly connected between the ventilation box and the recess, a ventilation pipe is fixedly connected between the air box and the telescopic air pipe, a piston block is slidably connected inside the air box, a plurality of springs three are fixedly connected between the piston block and the opposite side of the air box, two push rods are fixedly connected to the side of the piston block away from the spring three, and ends of two adjacent push rods away from the piston block extend through the inner side of the ventilation box and are fixedly connected to a retaining ring.

[0012] Furthermore, the ventilation box is fixedly connected to an air outlet pipe inside, and two sealed side panels are slidably connected to the inside of the air outlet pipe, a sealed front panel is fixedly connected between the two sealed side panels, a plurality of through-type air outlet holes are provided on the right side of the air outlet pipe, a plurality of through-type docking holes are provided on the right side of the sealed front panel in front of and behind the plurality of air outlet holes, a spring four is fixedly connected between the sealed side panel and the air outlet pipe, abutment rods are symmetrically fixedly connected to the opposite sides of the two sealed side panels, and the opposite ends of the abutment rods opposite to each other respectively penetrate to the front and rear of the air outlet pipe, and a hose is fixedly connected between the left side of the air outlet pipe and the ventilation pipe.

[0013] Beneficial effects: The ceiling body is engaged with the support frame through the engaging seat, which is convenient for disassembly and installation. The mounting plate is used for fixed installation on the top of the assembled house. The glass window is used for top light transmission to increase the light transmittance of the ceiling body. The ventilation box is connected with the externally installed ventilation box through the ventilation pipe to achieve indoor and outdoor ventilation and air permeability effects after the ceiling body is installed. By controlling the two electric telescopic rods to extend and retract alternately, and controlling the card connector to dock with the card interface, the fan blades can be controlled to rotate during the alternating start-up of the two motors, and then the ventilation box can be controlled to draw in indoor air and then discharge it to the outdoors, so that air circulation is achieved. The two motors are ventilated alternately to avoid the problem of a single motor being easily damaged by long-term operation. When the electric telescopic rod is retracted and the control card connector is connected to the card interface, the corresponding telescopic air pipe will be driven to retract, and then the gas inside the telescopic air pipe can be filled into the corresponding air box. The docking hole is connected to the air outlet hole, so that when the motor drives the fan blade to rotate, ventilation can be provided to the outside. When the electric telescopic rod is in the extended state and the motor is turned off, the docking hole is misaligned with the air outlet hole, so that the air outlet is closed to prevent dust and other problems from entering. The handheld turntable is rotated to control the rotation of multiple double-headed cams, so that the locking block can be controlled to be engaged or pulled out into the inside of the bayonet, thereby realizing the engagement and locking of the ceiling body, or facilitating the disassembly of the ceiling body. By positioning the positioning column to one of the two positioning holes, the turntable can be positioned after the block is engaged in the bayonet or pulled out of the bayonet, ensuring that the block is more stable after being engaged or pulled out and will not move easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a partial cross-sectional schematic diagram of the connection structure of the mounting plate, the support frame and the engaging seat of the present invention; Figure 3 It is a schematic diagram of the connection structure of the ventilation box and the ventilation box of the present invention; Figure 4 It is a schematic diagram of the internal structure of the ventilation box of the present invention; Figure 5 It is a schematic diagram of the internal side structure of the ventilation box of the present invention; Figure 6 It is a schematic diagram of the internal side view structure of the ventilator of the present invention; Figure 7 is a schematic side view of the structure of the card connector of the present invention; Figure 8 It is a structural schematic diagram of the crossbeam of the present invention; Fig. 9 It is a schematic diagram of the internal structure of the crossbeam of the present invention; Fig.10 It is a schematic diagram of the connection structure of the shaft rod, the double-headed cam, the traction plate, the rotating connecting piece and the sliding plate of the present invention.

[0015] In the figure: 1, mounting plate; 2, support frame; 3, snap-fit ​​seat; 4, ceiling body; 5, notch; 6, glass window; 7, ventilation box; 8, ventilation pipe; 9, ventilation box; 10, fixing strip; 11, motor; 12, snap joint; 13, shaft column; 14, fan blade; 15, cylinder; 16, round tube; 17, snap-fit ​​seat; 18, snap interface; 19, push plate; 20, electric telescopic rod; 21, snap joint; 22, crossbeam; 23, block; 24, shaft; 25, double-headed cam; 26, traction piece; 27, rotating connector; 28. Sliding sheet; 29. ​​Cross bar; 30. Turntable; 31. Spring 1; 32. Arc groove; 33. Movable block; 34. Spring 2; 35. Transmission wheel; 36. Transmission belt; 37. Telescopic air pipe; 38. Air box; 39. Ventilation pipe; 40. Piston block; 41. Spring 3; 42. Push rod; 43. Buffer ring; 44. Air outlet tube; 45. Sealing side plate; 46. Sealing front plate; 47. Air outlet hole; 48. Docking hole; 49. Spring 4; 50. Buffer rod; 51. Hose; 52. Positioning hole; 53. Positioning column. DETAILED DESCRIPTION

[0016] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1 like Figure 1 and Figure 2 As shown, a door and window ceiling structure of a residential building is provided, including a mounting plate 1, the number of mounting plates 1 is two, a plurality of support frames 2 are fixedly connected to the upper surface of the mounting plate 1, a clamping seat 3 is commonly engaged at the top ends of the plurality of support frames 2 on the same side, a ceiling body 4 is commonly fixedly connected to the top ends of the two clamping seats 3, a notch 5 is opened on the right side of the upper surface of the ceiling body 4, and a glass window 6 is fixedly installed inside the notch 5; The ceiling body 4 is engaged with the support frame 2 through the engaging seat 3, which is convenient for disassembly and installation. The mounting plate 1 is used for fixed installation on the top of the assembled house. The glass window 6 is used for light transmission from the top to increase the light transmittance of the ceiling body 4.

[0018] like Figure 3 As shown, a ventilation box 7 is fixedly installed on the inner side of the ceiling body 4, and a ventilation pipe 8 is fixedly connected to the outer wall of the ventilation box 7. The end of the ventilation pipe 8 away from the ventilation box 7 passes through the inner side of the recess 5 and is fixedly connected to a ventilation box 9; The ventilation box 7 is connected to the externally installed ventilation box 9 through the ventilation pipe 8, so as to achieve indoor and outdoor ventilation effects after the ceiling body 4 is installed.

[0019] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a fixing strip 10 is symmetrically fixedly connected to the inner lower surface of the ventilation box 7, a motor 11 is fixedly connected to the upper right side of the fixing strip 10, and a clamping joint 12 is fixedly connected to the right end of the output shaft of the motor 11; Two shaft columns 13 are fixedly connected to the right side of the ventilation box 7, a fan blade 14 is fixedly connected to the left end of the shaft column 13, a cylinder 15 is fixedly connected to the left center of the fan blade 14, a round tube 16 is slidably connected to the outer wall of the cylinder 15, a card seat 17 is fixedly connected to the left end of the card seat 17, and a card interface 18 is provided on the left side of the card seat 17; The right end of the round tube 16 is located outside the shaft column 13 and is rotatably connected to a push plate 19 through a rotating shaft. An electric telescopic rod 20 is fixedly connected between the lower right side of the fixing bar 10 and the left side of the push plate 19. By controlling the two electric telescopic rods 20 to extend and retract alternately, and controlling the card connector 12 to dock with the card interface 18, the fan blades 14 can be controlled to rotate during the alternating start-up of the two motors 11, and then the ventilation box 7 can be controlled to draw in indoor air and then discharge it to the outdoors, so that air circulation is carried out, and the two motors 11 are ventilated alternately, so as to avoid the problem that a single motor 11 is easily damaged due to long-term operation; An arc groove 32 is provided on the left side of the card seat 17, a movable block 33 is slidably connected to the inner side of the arc groove 32, a spring 2 34 is fixedly connected between the movable block 33 and the arc groove 32, and the left side of the movable block 33 is fixedly connected to the right side of the card interface 18; When the card connector 12 is connected to the inside of the card interface 18, the card interface 18 can move slightly, thereby facilitating the connection and connection of the card connector 12; The outer side wall of the shaft column 13 is fixedly connected with a transmission wheel 35, and the outer side walls of the two transmission wheels 35 are commonly connected with a transmission belt 36; It is convenient for a single motor 11 to start and control the two fan blades 14 to rotate together; A telescopic air pipe 37 is fixedly connected between the fixing strip 10 and the pushing plate 19 and above the electric telescopic rod 20, an air box 38 is fixedly connected between the ventilation box 9 and the recess 5, and a ventilation pipe 39 is fixedly connected between the air box 38 and the telescopic air pipe 37; A piston block 40 is slidably connected inside the air box 38, and a plurality of springs 41 are fixedly connected to the piston block 40 and the opposite side of the air box 38. Two push rods 42 are fixedly connected to the side of the piston block 40 away from the springs 41. One end of two adjacent push rods 42 away from the piston block 40 penetrates the inner side of the ventilation box 9 and is fixedly connected to a collar 43. An air outlet 44 is fixedly connected inside the ventilation box 9, two sealing side plates 45 are slidably connected inside the air outlet 44, a sealing front plate 46 is fixedly connected between the two sealing side plates 45, a plurality of through-type air outlet holes 47 are opened on the right side of the air outlet 44, and a plurality of through-type docking holes 48 are opened on the right side of the sealing front plate 46 in front of and behind the plurality of air outlet holes 47; A spring 49 is fixedly connected between the sealing side plate 45 and the air outlet cylinder 44. Abutment rods 50 are symmetrically fixedly connected to the opposite sides of the two sealing side plates 45. The opposite ends of the abutment rods 50 opposite to each other penetrate the front and rear of the air outlet cylinder 44 respectively. A hose 51 is fixedly connected between the left side of the air outlet cylinder 44 and the ventilation pipe 8. When one of the two electric telescopic rods 20 contracts and the control card connector 12 is connected to the card interface 18, the corresponding telescopic air pipe 37 will be driven to contract, and then the internal gas of the telescopic air pipe 37 can be filled into the corresponding air box 38, so that the abutment ring 43 moves and pushes the abutment rod 50, so that the sealing side plate 45 moves inside the air outlet cylinder 44, so that the docking hole 48 is connected to the air outlet hole 47, so that when the motor 11 drives the control fan blades 14 to rotate, ventilation can be provided to the outside. When the electric telescopic rods 20 are in the extended state and the motor 11 is turned off, the docking hole 48 is misaligned with the air outlet hole 47, so that the air outlet cylinder 44 is closed to avoid the problem of dust and the like entering.

[0020] like Figure 8 , Fig. 9 and Fig.10 As shown, the opposite sides of the two supporting frames 2 on the left and right are provided with bayonet holes 21; A plurality of cross beams 22 are fixedly connected to the opposite sides of the two opposite engaging seats 3, and two clamping blocks 23 are slidably connected inside the cross beams 22. The opposite sides of the two opposite clamping blocks 23 are respectively clamped inside the two opposite bayonet ports 21. A plurality of cross beams 22 are connected to each other by a shaft through a rotating shaft, and the outer side wall of the shaft 24 is located inside the plurality of cross beams 22 and fixedly connected to a double-headed cam 25, and the front surface of the double-headed cam 25 is connected to a traction piece 26 through a rotating shaft, and the front surface of the traction piece 26 is connected to a rotating connecting member 27 through a rotating shaft, and the end of the rotating connecting member 27 away from the traction piece 26 is fixedly connected to a sliding piece 28, and a cross bar 29 is fixedly connected between the sliding piece 28 and the block 23; The front end of the shaft 24 is fixedly connected to the turntable 30. The front surface of the crossbeam 22 located in front of the inner side of the ceiling body 4 is located on the outer side of the shaft 24 and has two positioning holes 52. The front surface of the turntable 30 is provided with a positioning column 53. The rear end of the positioning column 53 passes through the turntable 30 and is slidably connected to the turntable 30. A spring 31 is fixedly connected between the positioning column 53 and the turntable 30. The device drives the shaft 24 to rotate by the hand-held turntable 30, which can control multiple double-headed cams 25 to rotate together, and then the sliding plate 28 can be pulled by the traction plate 26 to slide along the inside of the beam 22, so that the locking block 23 can be controlled to be engaged or pulled out to the inside of the bayonet 21, so as to achieve the engagement and locking of the ceiling body 4, or facilitate the disassembly of the ceiling body 4. The positioning column 53 is positioned in one of the two positioning holes 52, and the turntable 30 after the block 23 can be engaged with the inside of the bayonet 21 or pulled out of the bayonet 21 can be positioned, ensuring that the block 23 is more stable after being engaged or pulled out, and will not move easily.

[0021] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A door, window and ceiling structure of a residential building, comprising a mounting plate (1), characterized in that: There are two mounting plates (1), the upper surface of the mounting plate (1) is fixedly connected to a plurality of support frames (2), the top ends of the plurality of support frames (2) on the same side are commonly engaged with a snap-fit ​​seat (3), the top ends of the two snap-fit ​​seats (3) are commonly fixedly connected to a ceiling body (4), a notch (5) is provided on the right side of the upper surface of the ceiling body (4), and a glass window (6) is fixedly installed on the inner side of the notch (5); A ventilation box (7) is fixedly mounted on the inner side of the ceiling body (4); a ventilation pipe (8) is fixedly connected to the outer side wall of the ventilation box (7); an end of the ventilation pipe (8) away from the ventilation box (7) passes through the inner side of the recess (5) and is fixedly connected to a ventilation box (9); A fixing strip (10) is symmetrically fixedly connected to the inner lower surface of the ventilation box (7), a motor (11) is fixedly connected to the upper right side of the fixing strip (10), and a clamping joint (12) is fixedly connected to the right end of the output shaft of the motor (11); Two shaft columns (13) are fixedly connected to the right side of the interior of the ventilation box (7); a fan blade (14) is fixedly connected to the left end of the shaft column (13); a cylinder (15) is fixedly connected to the left center of the fan blade (14); a circular tube (16) is slidably connected to the outer wall of the circular tube (15); a card seat (17) is fixedly connected to the left end of the card seat (17); a card interface (18) is provided on the left side of the card seat (17); The right end of the circular tube (16) is located outside the shaft column (13) and is rotatably connected to a push plate (19) via a rotating shaft, and an electric telescopic rod (20) is fixedly connected between the lower right side of the fixing bar (10) and the left side of the push plate (19).

2. The door, window and ceiling structure of a residential building according to claim 1, characterized in that: The opposite sides of the two supporting frames (2) opposite to each other are both provided with bayonet holes (21).

3. The door, window and ceiling structure of a residential building according to claim 2, characterized in that: The opposite sides of the two opposite snap-fit ​​seats (3) are fixedly connected with a plurality of cross beams (22), the interior of the cross beams (22) is slidably connected with two clamping blocks (23), and the opposite sides of the two opposite clamping blocks (23) are respectively clamped in the interior of the two opposite snap-fit ​​ports (21).

4. The door, window and ceiling structure of a residential building according to claim 3, characterized in that: A plurality of the cross beams (22) are connected to an axle rod (24) for joint rotation via a rotating shaft; the outer side walls of the axle rod (24) are located inside the plurality of cross beams (22) and are fixedly connected to a double-headed cam (25); the front surface of the double-headed cam (25) is connected to a traction piece (26) for rotation via a rotating shaft; the front surface of the traction piece (26) is connected to a rotating connecting member (27) for rotation via a rotating shaft; a sliding piece (28) is fixedly connected to one end of the rotating connecting member (27) away from the traction piece (26); and a cross bar (29) is fixedly connected between the sliding piece (28) and the clamping block (23).

5. The door, window and ceiling structure of a residential building according to claim 4, characterized in that: A turntable (30) is fixedly connected to the front end of the shaft rod (24); a front surface of the crossbeam (22) located in front of the inner side of the ceiling body (4) is provided with two positioning holes (52) located on the outer side of the shaft rod (24); a positioning column (53) is provided on the front surface of the turntable (30); a rear end of the positioning column (53) passes through the turntable (30) and is slidably connected to the turntable (30); a spring 1 (31) is fixedly connected between the positioning column (53) and the turntable (30).

6. The door, window and ceiling structure of a residential building according to claim 1, characterized in that: An arc-shaped groove (32) is provided on the left side of the card seat (17), a movable block (33) is slidably connected to the inner side of the arc-shaped groove (32), a second spring (34) is fixedly connected between the movable block (33) and the arc-shaped groove (32), and the left side of the movable block (33) is fixedly connected to the right side of the card interface (18).

7. The door, window and ceiling structure of a residential building according to claim 1, characterized in that: The outer side wall of the shaft column (13) is fixedly connected to a transmission wheel (35), and the outer side walls of the two transmission wheels (35) are commonly transmission-connected to a transmission belt (36).

8. The door, window and ceiling structure of a residential building according to claim 1, characterized in that: A telescopic air pipe (37) is fixedly connected between the fixing strip (10) and the pushing plate (19) and above the electric telescopic rod (20); an air box (38) is fixedly connected between the ventilation box (9) and the recess (5); a ventilation pipe (39) is fixedly connected between the air box (38) and the telescopic air pipe (37); a piston block (40) is slidably connected inside the air box (38); a plurality of springs three (41) are fixedly connected to the piston block (40) and the opposite side of the air box (38); two push rods (42) are fixedly connected to the side of the piston block (40) away from the spring three (41); the ends of two adjacent push rods (42) away from the piston block (40) extend through the inner side of the ventilation box (9) and are fixedly connected to a retaining ring (43).

9. The door, window and ceiling structure of a residential building according to claim 1, characterized in that: An air outlet cylinder (44) is fixedly connected to the interior of the ventilation box (9), and two sealing side panels (45) are slidably connected to the interior of the air outlet cylinder (44). A sealing front panel (46) is fixedly connected between the two sealing side panels (45). A plurality of through-type air outlet holes (47) are provided on the right side of the air outlet cylinder (44), and a plurality of through-type docking holes (48) are provided on the right side of the sealing front panel (46) in front of and behind the plurality of air outlet holes (47). A spring four (49) is fixedly connected between the sealing side panel (45) and the air outlet cylinder (44), and abutment rods (50) are symmetrically fixedly connected to the opposite sides of the two sealing side panels (45), and the opposite ends of the abutment rods (50) facing each other at the front and rear extend through the front and rear of the air outlet cylinder (44), respectively. A hose (51) is fixedly connected between the left side of the air outlet cylinder (44) and the ventilation pipe (8).

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