CN220771301U

CN220771301U - Ventilation device for architectural design

Info

Publication number: CN220771301U
Application number: CN202320932720.6U
Authority: CN
Inventors: 崔巍; 尹菲
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2024-04-12
Anticipated expiration: 2033-04-19

Abstract

The utility model provides a ventilation device for building design, which comprises a ventilation pipeline I, a ventilation pipeline II, a corrugated pipe, an outgoing air pipe, an outer air inlet pipe, an inner air outlet pipe and an inner air inlet pipe, wherein: one end of the first ventilating duct is fixedly connected with one end of the second ventilating duct through a corrugated pipe, an outgoing air pipe and an outer air inlet pipe are rotatably arranged at the other end of the first ventilating duct, an inner air outlet pipe and an inner air inlet pipe are rotatably arranged at the other end of the second ventilating duct, the interiors of the outgoing air pipe and the outer air inlet pipe are respectively communicated with the interior of the first ventilating duct, and the interiors of the inner air outlet pipe and the inner air inlet pipe are respectively communicated with the interior of the second ventilating duct; the corrugated pipe is communicated with the inside of the first ventilating pipeline and the inside of the second ventilating pipeline. When the air inlet and the air outlet are provided with barriers at two ends, the angles of the air inlet and the air outlet can be adjusted to bypass the barriers, so that the air inlet and the air outlet are more convenient and flexible overall.

Description

Ventilation device for architectural design

Technical Field

The utility model belongs to the field of ventilation, and particularly relates to a ventilation device for building design.

Background

The ventilation device for building design comprises a ventilation shell, an air inlet, an air outlet, a first fan, a dismounting mechanism and a second fan, wherein the first fan pumps outside air into the ventilation shell through the air inlet; the first filter screen is used for filtering dust in the outside air; the second filter screen is used for filtering indoor air to avoid polluting the external air environment; the disassembly mechanism is convenient for disassembling and taking the first filter screen and the second filter screen, and is convenient for cleaning; the sliding chute enables the first filter screen and the second filter screen to slide only; the wind collecting funnel is used for accelerating the flow of air and enhancing the ventilation effect; the sealing cover is used for sealing the opening through the clamping block and the bolt, and is convenient for disassembling and taking the first filter screen and the second filter screen so as to clean; the problem that the inconvenient is got when current ventilation unit clears up the filter screen is torn open in the solution that can be convenient, easy operation is suitable for the popularization.

However, when the ventilation device for building design is used, the air inlet angle and the air outlet angle are inconvenient to adjust, so that the ventilation device cannot be used when barriers exist at two ends of the air inlet and the air outlet, and therefore the overall ventilation device has a large limitation.

Therefore, it is necessary to provide a ventilation device for building design.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a ventilation device for building design, which adopts the following technical scheme: the utility model provides a ventilation unit for architectural design, includes air pipe one, air pipe two, bellows, goes out tuber pipe, outer air-supply line, interior tuber pipe and interior air-supply line, wherein: one end of the first ventilating duct is fixedly connected with one end of the second ventilating duct through a corrugated pipe, an outgoing air pipe and an outer air inlet pipe are rotatably arranged at the other end of the first ventilating duct, an inner air outlet pipe and an inner air inlet pipe are rotatably arranged at the other end of the second ventilating duct, the interiors of the outgoing air pipe and the outer air inlet pipe are respectively communicated with the interior of the first ventilating duct, and the interiors of the inner air outlet pipe and the inner air inlet pipe are respectively communicated with the interior of the second ventilating duct; the corrugated pipe is communicated with the inside of the first ventilating pipeline and the inside of the second ventilating pipeline.

Preferably, the ventilation pipeline I comprises a T-shaped pipe, two connecting pipes are fixedly arranged at the position where the outer surface of the transverse plate of the T-shaped pipe is in mirror image, and two L-shaped cavities are formed at the position where the inner part of the T-shaped pipe is in mirror image; the inside of each connecting pipe is respectively communicated with the inside of the corresponding L-shaped cavity, each connecting pipe is respectively in rotary connection with the corresponding outgoing air pipe and the corresponding outer air inlet pipe, and the inside of each L-shaped cavity is respectively communicated with the inside of the corresponding outgoing air pipe and the corresponding outer air inlet pipe.

Preferably, the second ventilation pipeline comprises a second T-shaped pipe, two connecting pipes are fixedly arranged at the mirror image position of the outer surface of the second transverse plate of the T-shaped pipe, and two Z-shaped cavities are formed at the mirror image position of the inner part of the second T-shaped pipe; the inside of each second connecting pipe is fixedly connected with the inside of the Z-shaped cavity, each second connecting pipe is rotatably connected with the corresponding inner air outlet pipe and the inner air inlet pipe, and a fan is fixedly arranged in each Z-shaped cavity close to the inside of one end of the second vertical plate of the T-shaped pipe; the inner part of each Z-shaped cavity is communicated with the inner parts of the corresponding inner air outlet pipe and the inner air inlet pipe respectively.

Preferably, the outgoing air pipe and the outer air inlet pipe have the same composition structure; the outlet air pipe comprises a U-shaped pipe, a connecting pipe III, a filter head and a motor, one side of the closed end of the U-shaped pipe is provided with a round hole, and the open end of the U-shaped pipe is fixedly connected with one end of the filter head through the connecting pipe III; a connecting shaft is fixedly arranged in the U-shaped pipe and coaxial with the round hole, and each connecting shaft penetrates into each connecting pipe in a rotating way from the corresponding round hole; the other end of the connecting shaft is fixedly connected with a power shaft of the motor, and each motor is fixedly arranged in one side, close to each connecting pipe, of the corresponding L-shaped cavity; the outgoing air pipe and the outer air inlet pipe are respectively connected with the corresponding connecting pipe in a rotating way through round holes; the U-shaped pipes are communicated with the third connecting pipe and the inside of the filter head, and each U-shaped pipe is communicated with the corresponding inside of the connecting pipe.

Preferably, the inner air outlet pipe and the inner air inlet pipe have the same composition structure; the inner air outlet pipe comprises a first U-shaped pipe, a fourth connecting pipe, a second filter head and a second motor, a round hole II is formed in one side of the closed end of the first U-shaped pipe, and the open end of the first U-shaped pipe is fixedly connected with one end of the second filter head through the fourth connecting pipe; a second connecting shaft is fixedly arranged in the first U-shaped pipe, the second connecting shaft and the second round hole are coaxial, and each second connecting shaft penetrates into the second connecting pipe in a rotating mode from the corresponding second round hole; the other end of the second connecting shaft is fixedly connected with a power shaft of the second motor, and each second motor is fixedly arranged in one side of the Z-shaped cavity close to the second connecting pipe; the inner air outlet pipe and the inner air inlet pipe are respectively and rotatably connected with the corresponding connecting pipe II through a round hole II; the first U-shaped pipe is communicated with the inside of the fourth connecting pipe and the inside of the second filter head, and the inside of each first U-shaped pipe is communicated with the inside of the corresponding second connecting pipe.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, through the arrangement of the structure between the first ventilating duct and the outer air inlet pipe and the structure between the first ventilating duct and the outer air inlet pipe, the air inlet angle and the air outlet angle of the outer air inlet pipe can be independently adjusted, so that when an obstacle exists outdoors, the air inlet angle and the air outlet angle of the outer air inlet pipe can be adjusted, the air outlet of the outer air inlet pipe and the air inlet of the outer air inlet pipe can be avoided by the arrangement of the structure between the second ventilating duct and the inner air inlet pipe and the structure between the second ventilating duct, the air inlet angle and the air outlet angle of the inner air inlet pipe can be independently adjusted, and when the obstacle exists indoors in installation and use, the air inlet angle and the air outlet angle of the inner air inlet pipe and the air inlet of the inner air inlet pipe can be adjusted, so that the air outlet of the inner air outlet pipe and the air inlet of the inner air inlet pipe can be avoided by the obstacle.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

FIG. 2 is a schematic view of the structure of the ventilating duct I, the outlet air pipe and the outer air inlet pipe of the present utility model.

Fig. 3 is a schematic structural view of a second ventilating duct, an inner air outlet duct and an inner air inlet duct according to the present utility model.

In the figure:

the air duct I1, the T-shaped pipe 11, the connecting pipe 12, the L-shaped cavity 13, the air duct II 2, the T-shaped pipe II 21, the connecting pipe II 22, the Z-shaped cavity 23, the fan 24, the corrugated pipe 3, the outgoing air pipe 4, the U-shaped pipe 41, the round hole 42, the connecting pipe III 43, the filter head 44, the connecting shaft 45, the motor 46, the outer air inlet pipe 5, the inner air outlet pipe 6, the U-shaped pipe I61, the round hole II 62, the connecting pipe IV 63, the filter head II 64, the connecting shaft II 65, the motor II 66 and the inner air inlet pipe 7.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution of the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the description of the embodiments, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model is further described below with reference to the accompanying drawings:

examples

Referring to fig. 1 to 3, a ventilation device for architectural design includes a first ventilation duct 1, a second ventilation duct 2, a bellows 3, an outgoing air duct 4, an outer air inlet duct 5, an inner air outlet duct 6, and an inner air inlet duct 7, wherein: one end of the first ventilating duct 1 is fixedly connected with one end of the corrugated pipe 3 through bolts, the other end of the corrugated pipe 3 is fixedly connected with one end of the second ventilating duct 2 through bolts, the total length of the first ventilating duct 1 and the second ventilating duct 2 can be adjusted through the arrangement of the corrugated pipe 3, meanwhile, the matched corrugated pipe 3 can be replaced according to the specification of building ventilation holes, and accordingly the ventilating duct 3 is convenient to cooperate with building ventilation holes of different lengths for use, an outgoing air pipe 4 and an outer air inlet pipe 5 are rotatably arranged at the other end of the first ventilating duct 1, the angles of the outgoing air pipe 4 and the outer air inlet pipe 5 can be independently adjusted through the structural arrangement between the first ventilating duct 1 and the outgoing air inlet pipe 4 and the outer air inlet pipe 5, the air outlet end of the outgoing air pipe 4 and the air inlet end of the outer air inlet pipe 5 are prevented from being close to each other end of the first ventilating duct 2, the inner air outlet pipe 6 and the inner air inlet pipe 7 are rotatably arranged at the other end of the second ventilating duct 2, the inner air outlet pipe 6 and the inner air inlet pipe 7 can be independently adjusted, and the inner air outlet pipe 6 and the inner air inlet pipe 7 are prevented from being communicated with the inner end of the first ventilating duct 1 and the second ventilating duct and the inner air inlet pipe 7; the bellows 3 communicates with the interiors of the first ventilation duct 1 and the second ventilation duct 2.

The ventilation pipeline I1 comprises a T-shaped pipe 11, two connecting pipes 12 are fixedly arranged at the mirror image position of the outer surface of a transverse plate of the T-shaped pipe 11, and two L-shaped cavities 13 are formed at the mirror image position of the inner part of the T-shaped pipe 11; the inside of each connecting pipe 12 is respectively communicated with the inside of the corresponding L-shaped cavity 13 transverse chamber, each connecting pipe 12 is respectively connected with the corresponding outgoing air pipe 4 and the corresponding outer air inlet pipe 5 in a rotating way, the joint between each connecting pipe 12 and the corresponding outgoing air pipe 4 and the corresponding outer air inlet pipe 5 is respectively subjected to sealing treatment, the inside of each L-shaped cavity 13 is respectively communicated with the inside of the corresponding outgoing air pipe 4 and the corresponding outer air inlet pipe 5, and the arrangement of the structures between each connecting pipe 12 and the outgoing air pipe 4 and the corresponding outer air inlet pipe 5 can enable the outgoing air pipe 4 and the corresponding outer air inlet pipe 5 to rotate along the corresponding connecting pipe 12 and ensure the stability and the sealing performance during rotation.

The ventilation pipeline II 2 comprises a T-shaped pipe II 21, two connecting pipes II 22 are fixedly arranged at the mirror image position of the outer surface of the transverse plate of the T-shaped pipe II 21, and two Z-shaped cavities 23 are formed at the mirror image position of the inner part of the T-shaped pipe II 21; the inside of each second connecting pipe 22 is fixedly connected with the inside of the Z-shaped cavity 23, each second connecting pipe 22 is rotatably connected with the corresponding inner air outlet pipe 6 and the inner air inlet pipe 7, a fan 24 is fixedly arranged in each Z-shaped cavity 23 near one end of the vertical plate of the second T-shaped pipe 21, one fan 24 sucks outdoor air into the room, the other fan 24 sucks indoor air out of the room, the fan 24 in the Z-shaped cavity 23 communicated with the inner air inlet pipe 7 sucks outdoor air into the room, and the other fan 24 in the Z-shaped cavity 23 communicated with the inner air outlet pipe 6 is indoor air sucked out of the room; the interior of each Z-shaped cavity 23 communicates with the interiors of the corresponding inner air outlet duct 6 and inner air inlet duct 7, respectively.

The outgoing air pipe 4 and the outer air inlet pipe 5 have the same composition structure; the outgoing air pipe 4 comprises a U-shaped pipe 41, a connecting pipe III 43, a filter head 44 and a motor 46, one side of the closed end of the U-shaped pipe 41 is provided with a round hole 42, the open end of the U-shaped pipe 41 is fixedly connected with one end of the connecting pipe III 43 through a bolt, the other end of the connecting pipe III 43 is fixedly connected with one end of the filter head 44 through a bolt, and through the arrangement of the connecting pipe III 43, the connecting pipe III 43 with different lengths can be replaced according to the requirements of a building, so that the air pipe is more convenient and flexible; a connecting shaft 45 is fixedly arranged in the U-shaped pipe 41, the connecting shaft 45 is coaxial with the round hole 42, and each connecting shaft 45 rotates from the corresponding round hole 42 to penetrate into each connecting pipe 12; the other end of the connecting shaft 45 is fixedly connected with a power shaft of the motor 46, and the angles of the outgoing air pipe 4 and the outer air inlet pipe 5 can be adjusted wirelessly and remotely through the arrangement of the connecting shaft 45 and the motor 46, so that the air outlet pipe is more convenient and flexible, and each motor 46 is fixedly arranged in one side, close to each connecting pipe 12, of the corresponding L-shaped cavity 13; the outgoing air pipe 4 and the external air inlet pipe 5 are respectively connected with the corresponding connecting pipes 12 in a rotating way through round holes 42, and the connection parts of the round holes 42 and the connecting pipes 12 are respectively subjected to sealing treatment, such as a sealing ring; the U-shaped pipes 41 are communicated with the interiors of the third connecting pipe 43 and the filter head 44, and each U-shaped pipe 41 is communicated with the interiors of the corresponding connecting pipes 12; the filter head 44 is rectangular, each surface of the filter head 44 is provided with a through hole, and a filter element, such as an activated carbon filter element, is fixedly arranged in the joint of the filter head 44 and the connecting pipe III 43, and the filter element can be specifically selected according to the use environment at the later stage due to various types of the filter element, so that excessive details are not needed; through the arrangement of each through hole, the air inlet efficiency and the air outlet efficiency can be improved.

The inner air outlet pipe 6 and the inner air inlet pipe 7 have the same composition structure; the inner air outlet pipe 6 comprises a first U-shaped pipe 61, a fourth connecting pipe 63, a second filter head 64 and a second motor 66, a second round hole 62 is formed in one side of the closed end of the first U-shaped pipe 61, the open end of the first U-shaped pipe 61 is fixedly connected with one end of the fourth connecting pipe 63 through a bolt, and the other end of the fourth connecting pipe 63 is fixedly connected with one end of the second filter head 64 through a bolt; a second connecting shaft 65 is fixedly arranged in the first U-shaped pipe 61, the second connecting shaft 65 and the second round hole 62 are coaxial, and each second connecting shaft 65 rotates from the corresponding second round hole 62 to penetrate into the second connecting pipe 22; the other end of the second connecting shaft 65 is fixedly connected with a power shaft of the second motor 66, and the angles of the inner air outlet pipe 6 and the inner air inlet pipe 7 can be remotely and wirelessly adjusted through the arrangement between the second connecting shaft 65 and the second motor 66, so that the air outlet pipe is more convenient and flexible, and each second motor 66 is fixedly arranged in one side of the Z-shaped cavity 23 close to the second connecting pipe 22; the inner air outlet pipe 6 and the inner air inlet pipe 7 are respectively and rotatably connected with the corresponding second connecting pipe 22 through second round holes 62, and the joint of each second round hole 62 and each second connecting pipe 22 is subjected to sealing treatment, such as a sealing ring; the first U-shaped pipe 61 is communicated with the interiors of the fourth connecting pipe 63 and the second filter head 64, and the interiors of the first U-shaped pipes 61 are respectively communicated with the interiors of the second corresponding connecting pipes 22; the filter element, such as an activated carbon filter element, is fixedly installed in the second filter head 64, and the filter element is of various types and can be specifically selected according to the use environment in the later stage, so that excessive details are not needed.

It should be noted that, the motor 46 and the second motor 66 fan 24 are both in the prior art, such as a motor with a wireless control function in the prior art, so the working principle thereof is not described in detail here.

In this embodiment, when in use, firstly, according to the specification of the building ventilation hole, a proper corrugated pipe 3 is selected, then, the length between the ventilation pipe 1 and the ventilation pipe 2 is adjusted, so that the ventilation pipe 1 and the ventilation pipe 2 are matched with the building ventilation hole, the outgoing air pipe 4 and the external air inlet pipe 5 are located outdoors, the internal air outlet pipe 6 and the internal air inlet pipe 7 are located indoors, when an obstacle is located nearby the outdoor position of the building ventilation hole, the corresponding connecting shaft 45 can be driven to rotate by the corresponding motor 46, so that each filter head 44 of the outgoing air pipe 4 and the external air inlet pipe 5 can avoid the obstacle, when an obstacle is also located indoors of the building ventilation hole, the connecting shaft 65 can be driven to rotate by the corresponding motor 66, so that each filter head 64 of the internal air outlet pipe 6 and the internal air inlet pipe 7 can avoid the obstacle; meanwhile, when no obstacle exists outside the building ventilation hole, the angles of the outgoing air pipe 4 and the outer air inlet pipe 5 can be adjusted, the filter head 44 of the outgoing air pipe 4 is furthest away from the filter head 44 of the outer air inlet pipe 5, so that indoor exhaust air can be prevented from being sucked back into the room again, and when no obstacle exists inside the building ventilation hole, the angles of the inner air outlet pipe 6 and the inner air inlet pipe 7 can be adjusted, the second filter head 64 of the inner air outlet pipe 6 is furthest away from the second filter head 64 of the inner air inlet pipe 7, and air sucked from the outside can be prevented from being discharged back to the outside again, so that the air exchange quality is improved.

By utilizing the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the utility model.

Claims

1. A ventilation unit for architectural design, its characterized in that: including air pipe one (1), air pipe two (2), bellows (3), go out tuber pipe (4), outer air-supply line (5), interior tuber pipe (6) and interior air-supply line (7), wherein: one end of the first ventilating duct (1) is fixedly connected with one end of the second ventilating duct (2) through a corrugated pipe (3), an outgoing air pipe (4) and an outer air inlet pipe (5) are rotatably arranged at the other end of the first ventilating duct (1), an inner air outlet pipe (6) and an inner air inlet pipe (7) are rotatably arranged at the other end of the second ventilating duct (2), the interiors of the outgoing air pipe (4) and the outer air inlet pipe (5) are respectively communicated with the interior of the first ventilating duct (1), and the interiors of the inner air outlet pipe (6) and the inner air inlet pipe (7) are respectively communicated with the interior of the second ventilating duct (2); the corrugated pipe (3) is communicated with the inside of the first ventilating pipeline (1) and the inside of the second ventilating pipeline (2).

2. A ventilation device for architectural design according to claim 1, wherein: the ventilation pipeline I (1) comprises a T-shaped pipe (11), two connecting pipes (12) are fixedly arranged on a transverse plate of the T-shaped pipe (11), and two L-shaped cavities (13) are formed in the T-shaped pipe (11); the inside of each connecting pipe (12) is respectively communicated with the inside of the corresponding L-shaped cavity (13), each connecting pipe (12) is respectively and rotatably connected with the corresponding outgoing air pipe (4) and the corresponding outer air inlet pipe (5), and the inside of each L-shaped cavity (13) is respectively communicated with the inside of the corresponding outgoing air pipe (4) and the corresponding outer air inlet pipe (5).

3. A ventilation device for architectural design according to claim 1, wherein: the ventilation pipeline II (2) comprises a T-shaped pipe II (21), two connecting pipes II (22) are fixedly arranged on a transverse plate of the T-shaped pipe II (21), and two Z-shaped cavities (23) are formed in the T-shaped pipe II (21); the inside of each second connecting pipe (22) is fixedly connected with the inside of the Z-shaped cavity (23), each second connecting pipe (22) is rotationally connected with the corresponding inner air outlet pipe (6) and the corresponding inner air inlet pipe (7), and a fan (24) is fixedly arranged inside each Z-shaped cavity (23) close to one end of a vertical plate of the second T-shaped pipe (21); the inside of each Z-shaped cavity (23) is respectively communicated with the inside of the corresponding inner air outlet pipe (6) and the inside of the corresponding inner air inlet pipe (7).

4. A ventilation device for architectural design according to claim 2, wherein: the outgoing air pipe (4) and the external air inlet pipe (5) have the same composition structure; the outlet air pipe (4) comprises a U-shaped pipe (41), a connecting pipe III (43), a filter head (44) and a motor (46), one side of the closed end of the U-shaped pipe (41) is provided with a round hole (42), and the open end of the U-shaped pipe (41) is fixedly connected with one end of the filter head (44) through the connecting pipe III (43); a connecting shaft (45) is fixedly arranged in the U-shaped pipe (41), the connecting shaft (45) and the round hole (42) are coaxial, and each connecting shaft (45) rotates from the corresponding round hole (42) to penetrate into each connecting pipe (12); the other end of the connecting shaft (45) is fixedly connected with a power shaft of the motor (46), and each motor (46) is fixedly arranged in the corresponding L-shaped cavity (13) at one side close to each connecting pipe (12); the outgoing air pipe (4) and the external air inlet pipe (5) are respectively connected with the corresponding connecting pipe (12) in a rotating way through round holes (42); the U-shaped pipes (41) are communicated with the inside of a connecting pipe III (43) and a filter head (44), and each U-shaped pipe (41) is communicated with the inside of the corresponding connecting pipe (12).

5. A ventilation device for architectural design according to claim 3, wherein: the inner air outlet pipe (6) and the inner air inlet pipe (7) have the same composition structure; the inner air outlet pipe (6) comprises a first U-shaped pipe (61), a fourth connecting pipe (63), a second filter head (64) and a second motor (66), a second round hole (62) is formed in one side of the closed end of the first U-shaped pipe (61), and the open end of the first U-shaped pipe (61) is fixedly connected with one end of the second filter head (64) through the fourth connecting pipe (63); a second connecting shaft (65) is fixedly arranged in the first U-shaped pipe (61), the second connecting shaft (65) and the second round hole (62) are coaxial, and each second connecting shaft (65) rotates from the corresponding second round hole (62) to penetrate into each second connecting pipe (22); the other end of the second connecting shaft (65) is fixedly connected with a power shaft of the second motor (66), and each second motor (66) is fixedly arranged in one side of the Z-shaped cavity (23) close to the second connecting pipe (22); the inner air outlet pipe (6) and the inner air inlet pipe (7) are respectively connected with the corresponding connecting pipe II (22) in a rotating way through a round hole II (62); the U-shaped pipes (61) are communicated with the interiors of the connecting pipe IV (63) and the filter head II (64), and the interiors of the U-shaped pipes (61) are respectively communicated with the interiors of the connecting pipes II (22).