Suction and blowing integrated air duct conversion chamber

Abstract

An embodiment of the present invention provides an integrated suction and blowing air duct conversion chamber, comprising a motor and an air duct switching component provided on the outside of the motor for switching between the suction mode and the blowing mode of the motor. The air duct switching component comprises an air shielding sleeve provided on the outside of the motor. The air shielding sleeve is provided with a suction end face and a blowing end face that can be switched to an open and closed state corresponding to the air inlet end and the air outlet end of the motor, respectively. The opening and closing states of the suction end face and the blowing end face are opposite. The air duct switching component also comprises a switching switch, which is used to switch the opening and closing of the suction end face and the blowing end face at a single time. The side wall of the air shielding sleeve is also provided with ventilation holes for air flow to pass through. By providing an air shielding sleeve with a suction end face and a blowing end face that can be switched to an open and closed state, the embodiment of the present invention does not need to change the rotation direction of the motor, and the response speed of switching between the dust suction mode and the blowing mode is faster, thereby improving the working efficiency of the machine. At the same time, it is not necessary to provide a corresponding complex circuit, thereby reducing production and maintenance costs.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of household appliances, and in particular to an integrated suction and blowing air duct conversion chamber. Background Art

[0002] Common integrated suction and blowing duct conversion chambers typically require two motors to create separate suction and blowing ducts. Switches are used to start and stop the motors, switching between suction and blowing modes or activating them simultaneously. However, assembling the two motors requires a significant amount of space, making the resulting unit bulky and unwieldy, making it difficult for users to use or carry around. Furthermore, designing air ducts for the different motors to avoid interfering with each other further complicates the design.

[0003] An existing single-motor suction and blowing integrated air duct conversion chamber includes a motor and an air duct switching member disposed at the front end of a housing away from the motor. The air duct switching member controls the forward and reverse rotation of the motor to switch the air duct between suction and blowing modes, thereby achieving both vacuuming and blowing functions. The air duct switching member includes two control mainboard trigger members and a knob, each connected to the motor. The rotation of the knob controls the switching of the two trigger members, and the control mainboard switches the forward and reverse rotation of the motor to achieve the vacuuming or blowing functions, respectively. The structure and control circuit design are relatively complex, resulting in higher manufacturing and subsequent maintenance costs. In addition, the switching between the forward and reverse rotation of the motor requires a corresponding buffer time, resulting in a slow response to switching between vacuuming and blowing modes and a poor user experience. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide an integrated suction and blowing air duct conversion chamber with a simple overall structure and lower cost.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides the following technical solutions: a suction and blowing integrated air duct conversion bin, comprising a motor and an air duct switching component arranged outside the motor for switching the motor to a dust suction mode in which air is taken in from one side of the air inlet end and the air outlet end is sealed, or a blowing mode in which air is discharged from one side of the air outlet end and the air inlet end is sealed. The air duct switching component comprises an air shield cover arranged on the outside of the motor, and the air shield cover is respectively provided with a suction end face and a blowing end face with switchable opening and closing states corresponding to the air inlet end and the air outlet end, and the opening and closing states of the suction end face and the blowing end face are opposite, and the air duct switching component also comprises a switching switch, which is used to switch the opening and closing of the suction end face and the blowing end face at a single time, and the side wall of the air shield cover is also provided with air holes for air flow to pass through.

[0006] Furthermore, the wind-shielding sleeve includes an inner sleeve and an outer sleeve that is fitted and fixed to the outer wall of the inner sleeve, and the end faces of both ends of the inner sleeve are respectively provided with inner air inlet holes and inner air outlet holes that are arranged in a one-to-one correspondence, and the end faces of both ends of the outer sleeve are respectively provided with outer air inlet holes and outer air outlet holes that are staggered with each other. The inner and outer air inlet holes and one group of holes among the inner and outer air holes are arranged in a one-to-one correspondence, and the other group of holes are staggered with each other. If the inner and outer air inlet holes correspond one-to-one, the air suction end face is correspondingly open, and if the inner and outer air holes correspond one-to-one, the air blowing end face is correspondingly open.

[0007] Furthermore, the wind-shielding sleeve includes an inner sleeve and an outer sleeve fixed to the outer wall of the inner sleeve, and the end faces of the inner sleeve are respectively provided with inner air inlet holes and inner air outlet holes that are staggered with each other, and the end faces of the outer sleeve are respectively provided with outer air inlet holes and outer air outlet holes that are corresponding to each other. The inner and outer air inlet holes and one group of holes among the inner and outer air holes are arranged in a one-to-one correspondence, and the other group of holes are staggered with each other, and if the inner and outer air inlet holes correspond to each other, the air suction end face is correspondingly open, and if the inner and outer air holes correspond to each other, the air blowing end face is correspondingly open.

[0008] Furthermore, the inner air inlet and the inner air outlet as well as the outer air inlet and the outer air outlet are evenly distributed around the center of the corresponding end faces, and the side walls of the outer sleeve and the inner sleeve are respectively provided with outer air holes and inner air holes near the end faces on both sides, which are consistent with the circumferential distribution uniformity of the outer air inlet and outlet holes and the inner air inlet and outlet holes. The inner air holes on both sides of the inner sleeve are arranged in a one-to-one correspondence, and the outer air holes on both sides of the outer sleeve are staggered with each other.

[0009] Furthermore, the air inlet and the inner air outlet as well as the outer air inlet and the outer air outlet are evenly distributed around the center of the corresponding end faces, and the side walls of the outer sleeve and the inner sleeve are respectively provided with outer air holes and inner air holes near the end faces on both sides, which are consistent with the circumferential distribution uniformity of the outer air inlet and outlet holes and the inner air inlet and outlet holes. The inner air holes on both sides of the inner sleeve are staggered with each other, and the outer air holes on both sides of the outer sleeve are arranged in a one-to-one correspondence.

[0010] Furthermore, the switching switch is a push rod fixed relatively to the inner sleeve and located in a slide groove correspondingly opened on the outer sleeve. The push rod is placed at both ends of the slide groove to open the suction end face and the inner and outer air holes away from the suction end face and close the blowing end face and the inner and outer air holes away from the blowing end face, or to open the blowing end face and the inner and outer air holes away from the blowing end face and close the suction end face and the inner and outer air holes away from the suction end face.

[0011] Furthermore, the inner sleeve includes a first inner sleeve and a second inner sleeve, and the motor is assembled in a corresponding accommodation cavity formed by the first inner sleeve and the second inner sleeve. The outer sleeve includes a first outer sleeve and a second outer sleeve, and the inner sleeve is assembled in a corresponding accommodation cavity formed by the first outer sleeve and the second outer sleeve.

[0012] Furthermore, the first inner sleeve and the second inner sleeve, as well as the first outer sleeve and the second outer sleeve are respectively provided with snap-fit ​​components for docking and fixing. The snap-fit ​​components include elastic barbs provided at the docking opening of one side sleeve and a snap-fit ​​groove provided on the opposite side sleeve corresponding to the elastic barbs. The elastic barbs are snap-fitted into the snap-fit ​​groove to form the complete inner sleeve and the outer sleeve.

[0013] Furthermore, an embedding groove is provided on the inner wall of the first inner sleeve corresponding to the motor, a fixing hole is provided on the end face of the second inner sleeve, and a fixing block is provided which is clamped in the fixing hole and clamps the motor with the bottom wall of the embedding groove from both ends of the motor.

[0014] Furthermore, a heating element is installed on the outer side of the blowing end surface.

[0015] After adopting the above technical solution, the embodiment of the present invention has at least the following beneficial effects: the embodiment of the present invention provides an air-shielding sleeve on the outside of the motor, and the air-shielding sleeve is respectively provided with a suction end face and a blowing end face that can switch the opening and closing states corresponding to the air inlet end and the air outlet end of the motor. The suction end face or the blowing end face is opened to correspond to the dust suction or blowing function of the integrated suction and blowing air duct conversion bin. There is no need to change the rotation direction of the motor. The response speed of switching between the dust suction mode and the blowing mode is faster, which improves the working efficiency of the machine. At the same time, there is no need to set up corresponding complex circuits, reducing production and maintenance costs; and the opening and closing states of the suction end face and the blowing end face are opposite, and a switching switch is provided for switching the opening and closing of the suction end face and the blowing end face at a single time, ensuring the relative independent operation and flexible switching of the dust suction mode and the blowing mode, simple operation, and improved user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the motor and air duct switching components in a three-dimensional angle in a blowing mode of an optional embodiment of the integrated suction and blowing air duct conversion chamber of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the motor and air duct switching components in another three-dimensional angle of an optional embodiment of the integrated suction and blowing air duct conversion chamber of the present invention in the blowing mode.

[0018] Figure 3This is a schematic diagram of the overall structure of the motor and air duct switching components of an optional embodiment of the integrated suction and blowing air duct conversion chamber of the present invention in the dust collection mode from another three-dimensional angle.

[0019] Figure 4 This is a schematic structural diagram of the disassembled state of the motor, air duct switching component and heating component of an optional embodiment of the integrated suction and blowing air duct conversion chamber of the present invention.

[0020] Figure 5 This is a cross-sectional view of the motor and air duct switching component along the central axis of the motor of an optional embodiment of the integrated suction and blowing air duct conversion chamber of the present invention.

[0021] Figure 6 This is a schematic diagram of the overall three-dimensional structure of an optional embodiment of the suction and blowing integrated air duct conversion bin of the present invention applied to a suction and blowing integrated machine. DETAILED DESCRIPTION

[0022] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following exemplary embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. Moreover, the embodiments and features in the embodiments of the present application may be combined with each other unless there is a conflict.

[0023] like Figure 1-Figure 3 As shown, an optional embodiment of the present invention provides an integrated suction and blowing air duct conversion chamber, including a motor 2 and an air duct switching component 5 arranged outside the motor 2 for switching the motor 2 to a dust suction mode in which air is taken in from one side of the air inlet end and the air outlet end is sealed, or a blowing mode in which air is discharged from one side of the air outlet end and the air inlet end is sealed. The air duct switching component 5 includes an air shielding sleeve 50 covered on the outside of the motor 2, and the air shielding sleeve 50 is respectively provided with a suction end face 501 and a blowing end face 503 which can be switched to open and close states corresponding to the air inlet end and the air outlet end, and the opening and closing states of the suction end face 501 and the blowing end face 503 are opposite, and the air duct switching component 5 also includes a switching switch 52, which is used to switch the opening and closing of the suction end face and the blowing end face at a single time, and the side wall of the air shield is also provided with air vents for air flow to pass through.

[0024] The embodiment of the present invention provides an air shielding sleeve 50 on the outside of the motor 2, and the air shielding sleeve 50 is respectively provided with a suction end face 501 and a blowing end face 503 that can switch the opening and closing states corresponding to the air inlet end and the air outlet end of the motor 2. Opening the suction end face 501 or the blowing end face 503 corresponds to using the dust suction or blowing function of the integrated suction and blowing air duct conversion bin, without changing the rotation direction of the motor 2. The response speed of switching between the dust suction mode and the blowing mode is faster, thereby improving the working efficiency of the machine. At the same time, there is no need to set up corresponding complex circuits, thereby reducing production and maintenance costs; and the opening and closing states of the suction end face 501 and the blowing end face 503 are opposite, and a switching switch 52 is provided for switching the opening and closing of the suction end face 501 and the blowing end face 503 at a single time, thereby ensuring the relatively independent operation and flexible switching of the dust suction mode and the blowing mode, simple operation, and improved user experience. During specific implementation, the suction end face 501 and the blowing end face 503 are connected to the main body of the wind shield 50 by elastic parts, and the switching switch 52 is used to release the elastic force of the elastic parts to bounce open the corresponding suction end face 501 or the blowing end face 503. A linear power part or a rotary power part can also be used to drive the corresponding suction end face 501 or the blowing end face 503 to open and close to realize the switching between dust suction and blowing modes.

[0025] In actual application, Figure 6 As shown, the present integrated suction and blowing air duct conversion bin can be specifically applied to an integrated suction and blowing machine, which includes a shell 1, an integrated suction and blowing air duct conversion bin assembled in the shell 1, and a dust suction component 3 and a blowing component 4 respectively connected to the air inlet end and the air outlet end of the integrated suction and blowing air duct conversion bin to form corresponding dust suction air ducts and air blowing air ducts.

[0026] In another optional embodiment of the present invention, Figures 1-4As shown, the wind-shielding sleeve 50 includes an inner sleeve 507 and an outer sleeve 509 that is fixed to the outer wall of the inner sleeve 507, and the end faces of both ends of the inner sleeve 507 are respectively provided with inner air inlet holes 5070 and inner air outlet holes 5072 that are arranged in a one-to-one correspondence, and the end faces of both ends of the outer sleeve 509 are respectively provided with outer air inlet holes 5090 and outer air outlet holes 5092 that are staggered with each other. One group of holes among the inner air inlet holes 5070, the outer air inlet holes 5090 and the inner air outlet holes 5072, the outer air outlet holes 5092 are arranged in a one-to-one correspondence, and the other group of holes are staggered with each other. If the inner air inlet holes 5070 and the outer air inlet holes 5090 correspond one-to-one, the air suction end face 501 will be correspondingly opened, and if the inner air outlet holes 5072 and the outer air outlet holes 5092 correspond one-to-one, the air blowing end face 503 will be correspondingly opened. In this embodiment, the wind-shielding sleeve 50 is configured as a double-layer sleeve consisting of an inner sleeve 507 and an outer sleeve 509, and the inner air inlet holes 5070 and the inner air outlet holes 5072 on the end faces of the inner sleeve 507 are corresponding to each other, while the outer air inlet holes 5090 and the outer air outlet holes 5092 on the end faces of the outer sleeve 509 are staggered with each other. One group of holes among the inner air inlet holes 5070, the outer air inlet holes 5090 and the inner air outlet holes 5072, the outer air outlet holes 5092 are arranged in a one-to-one correspondence, while the other group of holes are staggered with each other, thereby achieving the purpose of opposite opening and closing states of the suction end face 501 and the blowing end face 503. During use, the dust suction and blowing modes can be switched by adjusting the positional correspondence between the inner sleeve 507 and the outer sleeve 509. The structure is simple and the assembly is relatively convenient.

[0027] In another optional embodiment of the present invention, Figure 4As shown, the wind-shielding sleeve 50 includes an inner sleeve 507 and an outer sleeve 509 that is fixed to the outer wall of the inner sleeve 507, and the end faces of both ends of the inner sleeve 507 are respectively provided with inner air inlet holes 5070 and inner air outlet holes 5072 that are staggered with each other, and the end faces of both ends of the outer sleeve 509 are respectively provided with outer air inlet holes 5090 and outer air outlet holes 5092 that are arranged in a one-to-one correspondence, and one group of holes among the inner air inlet holes 5070, the outer air inlet holes 5090 and the inner air outlet holes 5072, the outer air outlet holes 5092 are arranged in a one-to-one correspondence, and the other group of holes are staggered with each other, and if the inner air inlet holes 5070 and the outer air inlet holes 5090 correspond one-to-one, the air suction end face 501 is correspondingly opened, and if the inner air outlet holes 5072 and the outer air outlet holes 5092 correspond one-to-one, the air blowing end face 503 is correspondingly opened. In this embodiment, inner air inlet holes 5070 and inner air outlet holes 5072 that are staggered with each other are respectively opened on both end faces of the inner sleeve 507, and outer air inlet holes 5090 and outer air outlet holes 5092 that are respectively set in a one-to-one correspondence are respectively opened on both end faces of the outer sleeve 509. One group of the inner air inlet holes 5070, the outer air inlet holes 5090 and the inner air outlet holes 5072, the outer air outlet holes 5092 are set in a one-to-one correspondence, and the other group of holes are staggered with each other. The opening and closing states of the suction end face 501 and the blowing end face 503 are always opposite, ensuring the independence of the two modes of dust collection and blowing, thereby improving the user experience.

[0028] In another optional embodiment of the present invention, Figures 1-4As shown, the inner air inlet hole 5070 and the inner air outlet hole 5072 as well as the outer air inlet hole 5090 and the outer air outlet hole 5092 are evenly distributed around the center of the corresponding end surface, and the side walls of the outer sleeve 509 and the inner sleeve 507 are respectively provided with outer air holes 505b and inner air holes 505a having the same circumferential distribution uniformity as the outer air inlet and outlet holes and the inner air inlet and outlet holes, near the end surfaces on both sides. The inner air holes 505a on both sides of the inner sleeve 507 are arranged in a one-to-one correspondence, and the outer air holes 505b on both sides of the outer sleeve 509 are staggered with each other. In this embodiment, the inner and outer air inlet holes 5090 and the inner and outer air outlet holes 5092 are arranged to be evenly distributed around the center of the corresponding end faces, and outer air holes 505b and inner air holes 505a with the same circumferential distribution uniformity as the outer air inlet and outlet holes and the inner air inlet and outlet holes are respectively opened on the side walls of the inner and outer bushings 509 near the end faces on both sides, and the inner air holes 505a on both sides of the inner bushing 507 are arranged in a one-to-one correspondence, and the outer air holes 505b on both sides of the outer bushing 509 are staggered with each other. , it is only necessary to drive the inner sleeve 507 and the outer sleeve 509 to rotate relative to each other by a predetermined angle to achieve the switching between the dust collection mode and the blowing mode, wherein, when the blowing end face 503 is open, the inner air holes 505a and the outer air holes 505b away from the blowing end face 503 are correspondingly opened; when the suction end face 501 is open, the inner air holes 505a and the outer air holes 505b away from the suction end face 501 are correspondingly opened, so as to generate sufficient airflow in the corresponding blowing air duct or the dust collection air duct, thereby ensuring the working efficiency of the suction and blowing integrated air duct conversion bin.

[0029] In another optional embodiment of the present invention, Figures 1-4As shown, the inner air inlet hole 5070 and the inner air outlet hole 5072 as well as the outer air inlet hole 5090 and the outer air outlet hole 5092 are evenly distributed around the center of the corresponding end surface, and the side walls of the outer sleeve 509 and the inner sleeve 507 are respectively provided with outer air holes 505b and inner air holes 505a having the same circumferential distribution uniformity as the outer air inlet and outlet holes and the inner air inlet and outlet holes, near the end surfaces on both sides, the inner air holes 505a on both sides of the inner sleeve 507 are staggered with each other, and the outer air holes 505b on both sides of the outer sleeve 509 are arranged in a one-to-one correspondence. In this embodiment, the inner ventilation holes 505a on both sides of the inner sleeve 507 are staggered with each other, and the outer ventilation holes 505b on both sides of the outer sleeve 509 are arranged in a one-to-one correspondence. During use, it is only necessary to drive the inner sleeve 507 and the outer sleeve 509 to rotate relative to each other by a predetermined angle to achieve the switching between the dust suction mode and the blowing mode. When the blowing end face 503 is open, the inner ventilation holes 505a and the outer ventilation holes 505b away from the blowing end face 503 are opened accordingly. When the suction end face 501 is open, the inner ventilation holes 505a and the outer ventilation holes 505b away from the suction end face 501 are opened accordingly, so as to generate sufficient airflow in the corresponding blowing air duct or the dust suction air duct, thereby ensuring the working efficiency of the suction and blowing integrated air duct conversion bin.

[0030] In another optional embodiment of the present invention, Figures 1-4 As shown, the switching switch 52 is a push rod 521 fixed relatively to the inner sleeve 507 and located in the corresponding slide groove 523 on the outer sleeve 509. The push rod 521 is placed at both ends of the slide groove 523 to open the suction end face 501 and the inner air holes 505a and outer air holes 505b away from the suction end face 501 and close the blowing end face 503 and the inner air holes 505a and outer air holes 505b away from the blowing end face 503, or open the blowing end face 503 and the inner air holes 505a and outer air holes 505b away from the blowing end face 503 and close the suction end face 501 and the inner air holes 505a and outer air holes 505b away from the suction end face 501. This embodiment simplifies operation and reduces user learning costs by setting the switch 52 as a push rod 521 fixed relative to the inner sleeve 507 and located in a corresponding slot 523 on the outer sleeve 509. The push rod 521 is placed at both ends of the slot 523 to respectively turn on the blowing mode and turn off the dust collection mode, or turn on the dust collection mode and turn off the blowing mode. It is understandable that the central angle corresponding to the arc-shaped movable path of the push rod 521 in the slot 523 is the same as the angle formed by the line connecting the center of two adjacent air inlets or air outlets on the suction end face 501 or the blowing end face 503 and the center of the corresponding end face.

[0031] In another optional embodiment of the present invention, Figure 1 、 Figure 4 and Figure 5 As shown, the inner sleeve 507 includes a first inner sleeve 5074 and a second inner sleeve 5076, and the motor 2 is correspondingly assembled in the accommodating cavity formed by the first inner sleeve 5074 and the second inner sleeve 5076. The outer sleeve 509 includes a first outer sleeve 5094 and a second outer sleeve 5096, and the inner sleeve 507 is correspondingly assembled in the accommodating cavity formed by the first outer sleeve 5094 and the second outer sleeve 5096. In this embodiment, the inner sleeve 507 and the outer sleeve 509 are respectively formed by docking two sleeves, wherein the motor 2 is correspondingly assembled in the accommodating cavity formed by the first inner sleeve 5074 and the second inner sleeve 5076, and the inner sleeve 507 is correspondingly assembled in the accommodating cavity formed by the first outer sleeve 5094 and the second outer sleeve 5096. The structure is simple and assembly and disassembly are relatively convenient.

[0032] In another optional embodiment of the present invention, Figure 4 and Figure 5 As shown, the first inner sleeve 5074 and the second inner sleeve 5076, as well as the first outer sleeve 5094 and the second outer sleeve 5096, are respectively provided with a snap-fit ​​assembly 6 for docking and fixing. The snap-fit ​​assembly 6 includes an elastic barb 61 provided at the docking opening of one sleeve and a snap-fit ​​groove 63 provided on the opposite sleeve corresponding to the elastic barb 61. The elastic barb 61 snaps and snaps into the snap-fit ​​groove 63 to form the complete inner sleeve 507 and the outer sleeve 509. In this embodiment, the first inner sleeve 5074 and the second inner sleeve 5076, as well as the first outer sleeve 5094 and the second outer sleeve 5096, are correspondingly connected and fixed by providing a snap-fit ​​assembly 6. The snap-fit ​​assembly 6 includes an elastic barb 61 and a snap-fit ​​groove 63. The elastic barb 61 snaps and snaps into the snap-fit ​​groove 63 to form the complete inner sleeve 507 and the outer lining. The connection is stable and more convenient to assemble and disassemble.

[0033] In another optional embodiment of the present invention, Figure 5 As shown, the inner wall of the first inner sleeve 5074 is provided with an embedding groove 5078 corresponding to the motor 2, and the end surface of the second inner sleeve 5076 is provided with a fixing hole. A fixing block 21 is provided to be locked in the fixing hole and to clamp the motor 2 from both ends of the motor 2 with the bottom wall of the embedding groove 5078. This embodiment assembles the motor 2 into the embedding groove 5078 of the first inner sleeve 5074, while the fixing block 21 passes through the fixing hole provided in the end surface of the second inner sleeve 5076 on the opposite side and cooperates with the bottom wall of the embedding groove 5078 to clamp the motor 2. This provides a simple structure and effective fixing effect.

[0034] In another optional embodiment of the present invention, Figure 1 and Figure 4 As shown, a heating element 7 is further installed on the outer side of the blowing end surface 503. In this embodiment, by assembling the heating element 7 on the outer side of the blowing end surface 503, the volatilization of water is accelerated, thereby improving the drying performance of the terminal product suction and blowing machine.

[0035] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many variations without departing from the scope of protection of the present invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A suction and blowing integrated air duct conversion chamber, comprising a motor and an air duct switching member disposed outside the motor for switching the motor to a dust suction mode with air intake from one side of the air inlet and a sealed air outlet, or a blowing mode with air discharge from one side of the air outlet and a sealed air inlet, characterized in that: The air duct switching component includes an air shielding sleeve covering the outside of the motor, and the air shielding sleeve is respectively provided with a suction end face and a blowing end face that can switch the opening and closing states corresponding to the air inlet end and the air outlet end, and the opening and closing states of the suction end face and the blowing end face are opposite. The air duct switching component also includes a switching switch, and the switching switch is used to switch the opening and closing of the suction end face and the blowing end face at a single time. The side wall of the air shield is also provided with air holes for air flow to pass through.

2. The suction-blowing integrated air duct conversion chamber according to claim 1, characterized in that: The wind-isolating sleeve includes an inner sleeve and an outer sleeve that is fixed to the outer wall of the inner sleeve, and the end faces of both ends of the inner sleeve are respectively provided with inner air inlet holes and inner air outlet holes that are arranged in a one-to-one correspondence, and the end faces of both ends of the outer sleeve are respectively provided with outer air inlet holes and outer air outlet holes that are staggered with each other. The inner and outer air inlet holes and one group of holes in the inner and outer air holes are arranged in a one-to-one correspondence, and the other group of holes are staggered with each other. If the inner and outer air inlet holes correspond to each other, the suction end face is correspondingly open, and if the inner and outer air holes correspond to each other, the blowing end face is correspondingly open.

3. The suction-blowing integrated air duct conversion chamber according to claim 1, characterized in that: The wind-isolating sleeve includes an inner sleeve and an outer sleeve fixed to the outer wall of the inner sleeve, and the end faces of the inner sleeve are respectively provided with inner air inlet holes and inner air outlet holes which are staggered with each other, and the end faces of the outer sleeve are respectively provided with outer air inlet holes and outer air outlet holes which are arranged in a one-to-one correspondence. The inner and outer air inlet holes and one group of the inner and outer air holes are arranged in a one-to-one correspondence, and the other group of holes are staggered with each other. If the inner and outer air inlet holes correspond to each other, the suction end face is correspondingly open, and if the inner and outer air holes correspond to each other, the blowing end face is correspondingly open.

4. The suction-blowing integrated air duct conversion chamber according to claim 2, characterized in that: The inner air inlet and the inner air outlet as well as the outer air inlet and the outer air outlet are evenly distributed around the center of the corresponding end faces, and the side walls of the outer sleeve and the inner sleeve are respectively provided with outer air holes and inner air holes with the same circumferential distribution uniformity as the outer air inlet and outlet holes and the inner air inlet and outlet holes. The inner air holes on both sides of the inner sleeve are arranged in a one-to-one correspondence, and the outer air holes on both sides of the outer sleeve are staggered with each other.

5. The suction-blowing integrated air duct conversion chamber according to claim 3, characterized in that: The air inlet and the inner air outlet as well as the outer air inlet and the outer air outlet are evenly distributed around the center of the corresponding end faces, and the side walls of the outer sleeve and the inner sleeve are respectively provided with outer air holes and inner air holes with the same circumferential distribution uniformity as the outer air inlet and outlet holes and the inner air inlet and outlet holes. The inner air holes on both sides of the inner sleeve are staggered with each other, and the outer air holes on both sides of the outer sleeve are arranged in a one-to-one correspondence.

6. The suction-blowing integrated air duct conversion chamber according to claim 4 or 5, characterized in that: The switching switch is a push rod fixed relatively to the inner sleeve and located in a corresponding slide groove on the outer sleeve. The push rod is placed at both ends of the slide groove to open the suction end face and the inner and outer air holes away from the suction end face and close the blowing end face and the inner and outer air holes away from the blowing end face, or to open the blowing end face and the inner and outer air holes away from the blowing end face and close the suction end face and the inner and outer air holes away from the suction end face.

7. The suction-blowing integrated air duct conversion chamber according to claim 4 or 5, characterized in that: The inner sleeve includes a first inner sleeve and a second inner sleeve, and the motor is assembled in a receiving cavity formed by the first inner sleeve and the second inner sleeve. The outer sleeve includes a first outer sleeve and a second outer sleeve, and the inner sleeve is assembled in a receiving cavity formed by the first outer sleeve and the second outer sleeve.

8. The suction-blowing integrated air duct conversion chamber according to claim 7, characterized in that: The first inner sleeve and the second inner sleeve as well as the first outer sleeve and the second outer sleeve are respectively provided with snap-fit ​​components for docking and fixing. The snap-fit ​​components include elastic barbs provided at the docking opening of one sleeve and a snap-fit ​​groove provided on the opposite sleeve corresponding to the elastic barbs. The elastic barbs are snap-fitted into the snap-fit ​​groove to form the complete inner sleeve and the outer sleeve.

9. The suction-blowing integrated air duct conversion chamber according to claim 7, characterized in that: An embedding groove is formed on the inner wall of the first inner sleeve corresponding to the motor, and a fixing hole is formed on the end surface of the second inner sleeve. A fixing block is clamped in the fixing hole and fixed to the motor from both ends of the motor with the bottom wall of the embedding groove.

10. The suction-blowing integrated air duct conversion chamber according to claim 1, characterized in that: A heating element is also installed on the outer side of the blowing end surface.

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