CN112869637B

CN112869637B - Sweeping robot cleaning device convenient to replace

Info

Publication number: CN112869637B
Application number: CN202110040718.3A
Authority: CN
Inventors: 钟搏; 江秋芳
Original assignee: Youli Shenzhen Technology Co ltd
Current assignee: Youli Shenzhen Technology Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2022-03-18
Anticipated expiration: 2041-01-13
Also published as: CN112869637A

Abstract

The invention discloses a cleaning device of a floor sweeping robot convenient to replace, which comprises a first support and a second support, wherein a round rod is arranged at the bottom end between the first support and the second support, an air channel is arranged in the round rod, a plurality of groups of air holes I are formed in the middle end of the round rod, a cleaning mechanism is sleeved on the outer side of the middle end of the round rod, a fixing mechanism is arranged on the cleaning mechanism, a brush reciprocating mechanism is arranged at two ends of the cleaning mechanism, an inner cavity is arranged in the second support and is communicated with the air channel, and an airflow heating mechanism is arranged at the top end between the first support and the second support. Has the advantages that: the invention is convenient for replacing the sweeper and can improve the replacement efficiency; dust at the ground gap can be cleaned; and the wet ground can be dried, so that the phenomenon that the wet and slippery ground causes people to slip and hurt is avoided.

Description

Sweeping robot cleaning device convenient to replace

Technical Field

The invention relates to the technical field of sweeping robots, in particular to a sweeping device of a sweeping robot, which is convenient to replace.

Background

The floor sweeping robot is also called an automatic cleaner, intelligent dust collection, a robot dust collector and the like, is one of intelligent household appliances, and can automatically complete floor cleaning work in a room by means of certain artificial intelligence. Generally, the floor cleaning machine adopts a brushing and vacuum mode, and firstly absorbs the impurities on the floor into the garbage storage box, so that the function of cleaning the floor is achieved. Generally, a robot that performs cleaning, dust collection and floor wiping is also collectively called a floor sweeping robot.

A cleaning device of a conventional sweeping robot, for example, patent No. CN108392143A, discloses a cleaning and dust removing device of a sweeping robot, which has an excellent effect of removing stubborn stains on the ground through the cleaning and dust removing device, and is convenient to popularize. However, after the cleaning device of the sweeping robot performs cleaning work for a long time, the sweeping brush needs to be cleaned or replaced, so that a cleaning device of the sweeping robot, which is convenient to replace, is needed.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention provides a cleaning device of a sweeping robot, which is convenient to replace and aims to solve the technical problems in the prior art.

Therefore, the invention adopts the following specific technical scheme:

the utility model provides a cleaning device of robot sweeps floor convenient to change, including support one and support two, the bottom between support one and the support two is provided with the round bar, is provided with the air duct in the round bar, and the middle-end of round bar is provided with a plurality of groups gas pocket one, the middle-end outside cover of round bar is equipped with cleans the mechanism, clean and be provided with fixed establishment in the mechanism, the both ends that clean the mechanism are provided with brush reciprocating mechanism, be provided with interior cavity in the support two, and interior cavity and air duct intercommunication, the top between support one and the support two is provided with air current heating mechanism.

Further, in order to clean the ground, and the sweeper is modularized design, can take off the sweeper that needs to be changed when the sweeper needs to be cleaned or changed, improves the change cleaning efficiency of the sweeper, has reduced the waste of resource, cleans the cylindrical mounting bracket that the mechanism overlaps in the pole middle-end outside including the cover, and the lateral wall of cylindrical mounting bracket is provided with a plurality of groups of sweepers, on the cylindrical mounting bracket and be provided with gas pocket two respectively between every two sets of sweepers.

Further, in order to make the sweeper can clear up the ground of different materials, improve the result of use of sweeper, the sweeper is including setting up soft brush and the hard brush on cylindrical mounting bracket lateral wall, and sets up to mutual alternate arrangement between soft brush and the hard brush.

Furthermore, in order to fix the sweeper on the cylindrical mounting frame and facilitate replacement of the sweeper and further improve replacement efficiency when the sweeper needs to be cleaned or replaced, the fixing mechanism comprises a plurality of groups of mounting grooves formed in the outer side wall of the cylindrical mounting frame, a plurality of groups of limiting pins are respectively arranged in each group of mounting grooves, mounting blocks are respectively arranged at one ends, close to the mounting grooves, of each group of soft brushes and hard brushes, limiting holes matched with the limiting pins are formed in one ends, close to the mounting grooves, of the mounting blocks, and a fixing ring is arranged at one end of the cylindrical mounting frame; the inner side wall of the fixing ring is connected with the outer side wall of the cylindrical mounting frame through threads, and one end of the fixing ring extends to the mounting block.

Furthermore, in order to enable the sweeping brush to reciprocate and further enable the sweeping brush to clean dust in gaps on the ground, and match with a dust suction function of the sweeping robot, the dust in the gaps on the ground can be cleaned completely, the sweeping brush reciprocating mechanism comprises a transverse plate arranged at the middle end between a first support and a second support, a T-shaped chute is arranged at the bottom end of the transverse plate, T-shaped sliders are respectively arranged in the T-shaped chute and on two sides of a cylindrical mounting rack, limiting plates are arranged at the bottom ends of the T-shaped sliders, springs are respectively arranged between the two groups of limiting plates and the first support and the second support, and a driving assembly is arranged on the first support; the driving assembly comprises a driving assembly shell arranged on the first support, a driving rod sliding groove is formed in the driving assembly shell, a driving rod is arranged in the driving rod sliding groove, one end of the driving rod extends to the outer side of the driving assembly shell, one end, far away from the driving assembly shell, of the driving rod is provided with a driving plate, an iron core is sleeved in the driving assembly shell and on the outer side of the driving rod, and a winding is arranged in the iron core.

Further, in order to be able to blow the floor when the robot uses cleaning device, can weather moist ground, prevent that ground is wet smooth, it is injured to avoid wet smooth ground to cause personnel to slip, and can heat ground, wait under the lower environment of temperature in winter, can make ground more comfortable to the people, airflow heating mechanism is including setting up the air inlet on a support top, the one end that support one was kept away from to the air inlet is provided with the heating pipe subassembly, the one end that the air inlet was kept away from to the heating pipe subassembly is provided with the connecting pipe, and the inside of connecting pipe is provided with the tesla valve, and the tesla valve communicates with interior cavity.

Further, in order to enable air to be decelerated and pressure to be increased when air flows enter the air inlet, and air inlet efficiency is optimized, bulges are arranged inside the air inlet.

Further, in order to heat air more efficiently, the heating pipe assembly comprises a heating pipe body which is arranged at one end of the air inlet and far away from one end of the support, a plurality of groups of turbulence holes are formed in one end, close to the air inlet, of the heating pipe body, spiral turbulators are arranged in the heating pipe body and on the side edges of the turbulence holes, and a heating plate is arranged on the inner side wall of the heating pipe body.

The invention has the beneficial effects that:

(1) the sweeping mechanism is suitable for a sweeping robot, the floor can be cleaned by arranging the sweeping mechanism, the sweeping brush of the sweeping mechanism is in a modular design, the sweeping brush needing to be replaced can be taken down when the sweeping brush needs to be cleaned or replaced, the replacement and cleaning efficiency of the sweeping brush is improved, and the waste of resources is reduced.

(2) Through setting up fixed establishment to can fix the brush on cylindrical mounting bracket, and use through fixed establishment and the cooperation of cleaning the mechanism, can be convenient for change the brush, and then can improve the efficiency of changing when needs clearance or change brush.

(3) Through setting up the brush reciprocating mechanism to can make brush reciprocating motion, and then can make the brush clear up the dust on the gap department on ground, cooperate the dust function of inhaling of robot of sweeping the floor again, can make the dust clean up on the gap department on ground.

(4) Through setting up the air current heating mechanism to can weather moist ground when the robot of sweeping the floor uses cleaning device, prevent that ground is wet smooth, avoid wet smooth ground to cause personnel to slip the injury, and can heat ground, wait under the lower environment of temperature winter, can make ground more comfortable to the people.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a cleaning device of a cleaning robot convenient to replace according to an embodiment of the invention;

fig. 2 is a schematic connection diagram of a cleaning mechanism and a fixing mechanism of a cleaning device of a cleaning robot, which is convenient to replace, according to an embodiment of the invention;

fig. 3 is a schematic structural diagram of a cleaning mechanism of a cleaning device of a cleaning robot, which is convenient to replace, according to an embodiment of the invention;

fig. 4 is a schematic structural diagram of a mounting block of a cleaning device of a cleaning robot convenient to replace according to an embodiment of the invention;

fig. 5 is a schematic structural diagram of a driving assembly of a cleaning device of a cleaning robot convenient to replace according to an embodiment of the invention;

fig. 6 is a partial schematic view of a brush reciprocating mechanism of a cleaning device of a cleaning robot convenient to replace according to an embodiment of the invention;

fig. 7 is a schematic structural diagram of an air inlet of a cleaning device of a cleaning robot convenient to replace according to an embodiment of the invention;

fig. 8 is a schematic view of the internal structure of a heating tube assembly and a connecting tube of a cleaning device of a cleaning robot, which is convenient to replace according to an embodiment of the present invention;

fig. 9 is a schematic view of the internal structures of the second bracket and the round bar of the cleaning device of the cleaning robot convenient to replace according to the embodiment of the invention.

In the figure:

1. a first bracket; 2. a second bracket; 3. a round bar; 4. an air duct; 5. a first air hole; 6. a cleaning mechanism; 601. a cylindrical mounting bracket; 602. brushing; 603. a second air hole; 604. soft brushing; 605. hard brushing; 7. a fixing mechanism; 701. mounting grooves; 702. a spacing pin; 703. mounting blocks; 704. a limiting hole; 705. a fixing ring; 8. a sweeper reciprocating mechanism; 801. a transverse plate; 802. a T-shaped chute; 803. a T-shaped slider; 804. a limiting plate; 805. a spring; 806. a drive assembly; 807. a drive assembly housing; 808. a drive rod chute; 809. a drive rod; 810. a drive plate; 811. an iron core; 812. a winding; 9. an inner cavity; 10. an air flow heating mechanism; 1001. an air inlet; 1002. a heating tube assembly; 1003. a connecting pipe; 1004. a Tesla valve; 1005. bulging; 1006. heating the tube body; 1007. a flow-disturbing hole; 1008. a helical turbulator; 1009. heating the plate.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to the embodiment of the invention, the sweeping device of the sweeping robot is convenient to replace.

Referring to the drawings and the detailed description, as shown in fig. 1-9, the cleaning device of the sweeping robot convenient to replace according to the embodiment of the invention includes a first bracket 1 and a second bracket 2, a round rod 3 is arranged at the bottom end between the first bracket 1 and the second bracket 2, an air duct 4 is arranged in the round rod 3, a plurality of groups of air holes 5 are arranged at the middle end of the round rod 3, a cleaning mechanism 6 is sleeved outside the middle end of the round rod 3, a fixing mechanism 7 is arranged on the cleaning mechanism 6, a brush reciprocating mechanism 8 is arranged at two ends of the cleaning mechanism 6, an inner cavity 9 is arranged in the second bracket 2, the inner cavity 9 is communicated with the air duct 4, and an airflow heating mechanism 10 is arranged at the top end between the first bracket 1 and the second bracket 2.

By means of the scheme, the sweeper 602 is convenient to replace, and the replacement efficiency can be improved; dust at the ground gap can be cleaned; and the wet ground can be dried, so that the phenomenon that the wet and slippery ground causes people to slip and hurt is avoided.

In an embodiment, for the above cleaning mechanism 6, the cylindrical mounting frame 601 is sleeved outside the middle end of the round rod 3 through the cleaning mechanism 6, the outer side wall of the cylindrical mounting frame 601 is provided with a plurality of groups of wipers 602, and the cylindrical mounting frame 601 is provided with two air holes 603 between every two groups of wipers 602, so that the ground can be cleaned, and the wipers 602 are designed in a modular manner, so that the wipers 602 which need to be replaced can be taken down when the wipers 602 need to be cleaned or replaced, the replacement and cleaning efficiency of the wipers 602 is improved, and the waste of resources is reduced.

In one embodiment, for the sweeper brush 602, the sweeper brush 602 includes the soft brush 604 and the hard brush 605 disposed on the outer side wall of the cylindrical mounting frame 601, and the soft brush 604 and the hard brush 605 are disposed in an alternating arrangement, so that the sweeper brush 602 can clean floors of different materials, and the use effect of the sweeper brush 602 is improved.

In one embodiment, for the fixing mechanism 7, the fixing mechanism 7 includes a plurality of sets of mounting grooves 701 disposed on the outer side wall of the cylindrical mounting rack 601, a plurality of sets of limiting pins 702 are disposed in each set of mounting grooves 701, and a mounting block 703 is disposed at one end of each set of the soft brush 604 and the hard brush 605 close to the mounting grooves 701, a limiting hole 704 engaged with the limiting pin 702 is disposed at one end of the mounting block 703 close to the mounting groove 701, and a fixing ring 705 is disposed at one end of the cylindrical mounting rack 601; through threaded connection between the inside wall of solid fixed ring 705 and the lateral wall of cylindrical mounting bracket 601, and the one end of solid fixed ring 705 extends to mounting block 703 to can fix brush 602 on cylindrical mounting bracket 601, and be convenient for change brush 602, and then can improve the efficiency of changing when needing to clear up or change brush 602.

In one embodiment, for the brush reciprocating mechanism 8, the brush reciprocating mechanism 8 includes a horizontal plate 801 disposed at the middle end between the first bracket 1 and the second bracket 2, a T-shaped chute 802 is disposed at the bottom end of the horizontal plate 801, T-shaped sliders 803 are respectively disposed in the T-shaped chute 802 and at two sides of the cylindrical mounting bracket 601, a limiting plate 804 is disposed at the bottom end of the T-shaped slider 803, springs 805 are respectively disposed between the two sets of limiting plates 804 and the first bracket 1 and the second bracket 2, and a driving assembly 806 is disposed on the first bracket 1; drive assembly 806 is including setting up the drive assembly shell 807 on support 1, the inside of drive assembly shell 807 is provided with actuating lever spout 808, be provided with actuating lever 809 in the actuating lever spout 808, and the one end of actuating lever 809 extends to the outside of drive assembly shell 807, the one end that drive assembly shell 807 was kept away from to actuating lever 809 is provided with drive plate 810, in the drive assembly shell 807 and be equipped with iron core 811 in the outside cover of actuating lever 809, and be provided with winding 812 in the iron core 811, thereby can make the reciprocating motion of sweeping brush 602, and then can make the dust of the gap department on sweeping brush 602 clearance ground, cooperate again and sweep the dust function of inhaling of robot, can make the dust clean up of the gap department on ground.

In an embodiment, for the airflow heating mechanism 10, the airflow heating mechanism 10 includes an air inlet 1001 disposed at a top end of the first bracket 1, one end of the air inlet 1001, which is away from the first bracket 1, is provided with a heating pipe assembly 1002, one end of the heating pipe assembly 1002, which is away from the air inlet 1001, is provided with a connecting pipe 1003, the inside of the connecting pipe 1003 is provided with a tesla valve 1004, and the tesla valve 1004 is communicated with the inner cavity 9, so that when the sweeping robot uses the cleaning device, wet ground can be dried, the wet and slippery ground is prevented, the slipping of people caused by the wet and slippery ground is avoided, the ground can be heated, and in an environment with a low temperature such as winter, the ground can be made more comfortable for people.

In one embodiment, for the air inlet 1001, the bulge 1005 is arranged inside the air inlet 1001, so that when the air flow enters the air inlet 1001, the air can be decelerated and the pressure can be increased, and the air inlet efficiency is optimized.

In one embodiment, for the heating tube assembly 1002, the heating tube assembly 1002 includes a heating tube body 1006 disposed at one end of the air inlet 1001, which is far away from the bracket 1, a plurality of groups of turbulent flow holes 1007 are disposed at one end of the heating tube body 1006, which is close to the air inlet 1001, a spiral spoiler 1008 is disposed in the heating tube body 1006 and on a side of the turbulent flow holes 1007, and a heating plate 1009 is disposed on an inner side wall of the heating tube body 1006, so that air can be heated more efficiently.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the sweeping robot drives the sweeping device to operate, the sweeping brush 602 can sweep the ground when the sweeping robot moves, the limiting plate 804 limits the cylindrical mounting frame 601 and the sweeping brush 602, when dust in a gap on the ground needs to be swept, the winding 812 is electrified, the driving rod 809 and the driving plate 810 are driven to reciprocate under the cooperation of the iron core 811, and the limiting plate 804, the cylindrical mounting frame 601 and the sweeping brush 602 are driven to reciprocate through the driving plate 810, so that the sweeping brush 602 can clear the dust in the gap, and the dust in the gap can be cleaned by matching with the dust suction function of the sweeping robot.

When cleaning mechanism 6 uses, connect gas generating equipment such as air pump in air inlet 1001 department, the air current passes through air inlet 1001 and gets into in heating pipe subassembly 1002, under the effect of vortex hole 1007 and spiral turbolator 1008, makes the air current take place the vortex for the heating efficiency of hot plate 1009 is higher. The heated gas can accelerate the gas flow speed through the Tesla valve 1004 and is blown to the ground through the inner cavity 9, the air duct 4, the air hole I5 and the air hole II 603 in sequence.

The sweeper brush 602 can be fixed through the matching of the limit pin 702 and the limit hole 704 and the fixing ring 705, when the sweeper brush 602 needs to be detached, the fixing ring 705 is screwed to enable the fixing ring 705 to be separated from the mounting block 703, and then the sweeper brush 602 and the mounting block 703 can be detached. The sweeper 602 may be installed by reversing the operation.

In summary, the sweeping robot is suitable for sweeping robots, the floor can be cleaned by arranging the sweeping mechanism 6, and the sweeping brush 602 of the sweeping mechanism is in a modular design, so that the sweeping brush 602 to be replaced can be taken down when the sweeping brush 602 needs to be cleaned or replaced, the replacement and cleaning efficiency of the sweeping brush 602 is improved, and the waste of resources is reduced. Through setting up fixed establishment 7 to can fix the brush 602 on cylindrical mounting bracket 601, and use through fixed establishment 7 and the cooperation of cleaning mechanism 6, can be convenient for change brush 602, and then can improve the efficiency of changing when needing to clear up or change brush 602. Through setting up the brush reciprocating mechanism 8 to can make brush 602 reciprocating motion, and then can make brush 602 clear up the dust on the gap department on ground, cooperate the dust function of inhaling of robot of sweeping the floor again, can make the dust clean up on the gap department on ground. Through setting up air current heating mechanism 10 to can weather moist ground when the robot of sweeping the floor uses cleaning device, prevent that ground is wet smooth, avoid wet smooth ground to cause personnel to slip the injury, and can heat ground, wait under the lower environment of temperature winter, can make ground more comfortable to the people.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A cleaning device of a floor sweeping robot convenient to replace is characterized by comprising a first bracket (1) and a second bracket (2), a round rod (3) is arranged at the bottom end between the first bracket (1) and the second bracket (2), an air duct (4) is arranged in the round rod (3), a plurality of groups of air holes I (5) are arranged at the middle end of the round rod (3), a cleaning mechanism (6) is sleeved outside the middle end of the round rod (3), a fixing mechanism (7) is arranged on the cleaning mechanism (6), a brush reciprocating mechanism (8) is arranged at two ends of the cleaning mechanism (6), an inner cavity (9) is arranged in the second bracket (2), the inner cavity (9) is communicated with the air duct (4), and an airflow heating mechanism (10) is arranged at the top end between the first bracket (1) and the second bracket (2);

the airflow heating mechanism (10) comprises an air inlet (1001) arranged at the top end of the first support (1), a heating pipe assembly (1002) is arranged at one end, away from the first support (1), of the air inlet (1001), a connecting pipe (1003) is arranged at one end, away from the air inlet (1001), of the heating pipe assembly (1002), a Tesla valve (1004) is arranged inside the connecting pipe (1003), and the Tesla valve (1004) is communicated with the inner cavity (9);

the cleaning mechanism (6) comprises a cylindrical mounting frame (601) sleeved on the outer side of the middle end of the round rod (3), a plurality of groups of sweeping brushes (602) are arranged on the outer side wall of the cylindrical mounting frame (601), and air holes II (603) are formed in the cylindrical mounting frame (601) and between every two groups of sweeping brushes (602);

the sweeper reciprocating mechanism (8) comprises a transverse plate (801) arranged at the middle end between the first support (1) and the second support (2), a T-shaped sliding groove (802) is formed in the bottom end of the transverse plate (801), T-shaped sliding blocks (803) are arranged in the T-shaped sliding groove (802) and on two sides of the cylindrical mounting frame (601) respectively, a limiting plate (804) is arranged at the bottom end of each T-shaped sliding block (803), springs (805) are arranged between the two groups of limiting plates (804) and the first support (1) and the second support (2) respectively, and a driving assembly (806) is arranged on the first support (1);

drive assembly (806) is including setting up drive assembly shell (807) on support (1), the inside of drive assembly shell (807) is provided with actuating lever spout (808), be provided with actuating lever (809) in actuating lever spout (808), just the one end of actuating lever (809) extends to the outside of drive assembly shell (807), one end that drive assembly shell (807) was kept away from in actuating lever (809) is provided with drive plate (810), in drive assembly shell (807) and in the outside cover of actuating lever (809) is equipped with iron core (811), just be provided with winding (812) in iron core (811), when winding (812) circular telegram, drive under the cooperation of iron core (811) actuating lever (809) and drive plate (810) reciprocating motion, and through drive plate (810) drive limiting plate (804), The cylindrical mounting frame (601) and the sweeper brush (602) reciprocate.

2. The cleaning device of the sweeping robot convenient for replacement as claimed in claim 1, wherein the sweeper brush (602) comprises a soft brush (604) and a hard brush (605) arranged on the outer side wall of the cylindrical mounting frame (601), and the soft brush (604) and the hard brush (605) are arranged in an alternating arrangement.

3. The cleaning device of the floor sweeping robot convenient to replace as claimed in claim 2, wherein the fixing mechanism (7) comprises a plurality of sets of mounting grooves (701) arranged on the outer side wall of the cylindrical mounting rack (601), each set of mounting grooves (701) is internally provided with a plurality of sets of limiting pins (702), each set of soft brushes (604) and hard brushes (605) is provided with a mounting block (703) at one end close to the mounting groove (701), one end of the mounting block (703) close to the mounting groove (701) is provided with a limiting hole (704) matched with the limiting pin (702), and one end of the cylindrical mounting rack (601) is provided with a fixing ring (705).

4. The cleaning device of a floor sweeping robot convenient to replace as claimed in claim 3, wherein the inner side wall of the fixing ring (705) is connected with the outer side wall of the cylindrical mounting rack (601) through threads, and one end of the fixing ring (705) extends to the mounting block (703).

5. The cleaning device of a floor sweeping robot convenient to replace as claimed in claim 1, wherein the inside of the air inlet (1001) is provided with a bulge (1005).

6. The cleaning device of the floor sweeping robot convenient to replace as claimed in claim 1, wherein the heating pipe assembly (1002) comprises a heating pipe body (1006) arranged at one end of the air inlet (1001) far away from the first bracket (1), one end of the heating pipe body (1006) close to the air inlet (1001) is provided with a plurality of groups of turbulence holes (1007), a spiral turbulator (1008) is arranged in the heating pipe body (1006) and on the side of the turbulence holes (1007), and a heating plate (1009) is arranged on the inner side wall of the heating pipe body (1006).