CN110578959A

CN110578959A - Liftable domestic room heater of dust type

Info

Publication number: CN110578959A
Application number: CN201910685293.4A
Authority: CN
Inventors: 黄开林; 黄玉华
Original assignee: Yangzhou Huaheng Electric Co Ltd
Current assignee: Yangzhou Huaheng Electric Co Ltd
Priority date: 2019-07-27
Filing date: 2019-07-27
Publication date: 2019-12-17

Abstract

The invention relates to a liftable dustproof household heater, which comprises a shell, a first motor, a supporting plate, a lifting pipe, a fixed pipe and a base, wherein a dustproof mechanism is arranged in the shell, a lifting mechanism is arranged in the fixed pipe and comprises a collecting box, a rotating assembly and a plurality of dustproof assemblies, each dustproof assembly comprises an absorption chamber, a suction head, a fan, a connecting pipe and a heating pipe, each lifting mechanism comprises a bearing shaft and a plurality of lifting assemblies, each lifting assembly comprises a connecting rod, a second motor, a gear and a rack, and the liftable dustproof household heater can clean dust on the heating pipes through the dustproof mechanism, thereby realizing the dustproof function, reducing the trouble of users, and improving the practicability of the heater.

Description

Liftable domestic room heater of dust type

Technical Field

The invention relates to the field of heating equipment, in particular to a liftable dustproof household heater.

Background

The warmer refers to a device for warming. There are many types of heaters, and the most common electric heater is a heating device using electricity as an energy source to heat and heat, which can also be called electric heating.

The unable lift of current room heater, the user height-adjusting of being not convenient for, moreover, the heating pipe in case the deposition will influence the effect of heating, but because the heating pipe is installed in the inside of room heater, the user need pull down the filter screen and just can clear up, and is more troublesome, has reduced the practicality of room heater.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the liftable dustproof household warmer is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a domestic room heater of liftable dust type, includes casing, first motor, backup pad, fall way, fixed pipe and base, the bottom of casing is fixed on the output shaft of first motor, first motor is connected with the casing transmission, the top in the backup pad is fixed to first motor, the below in the backup pad is fixed to the fall way, the fall way cover is established on fixed pipe, the bottom mounting of fixed pipe is on the base, the both sides of casing are equipped with complementary unit, be equipped with dustproof mechanism and wireless communication module in the casing, fixed intraductal elevating system that is equipped with, wireless communication module includes wireless communication circuit, wireless communication circuit includes first resistance R1, second resistance R2, third resistance R3, first electric capacity C1, second electric capacity C2, third electric capacity C3, fourth electric capacity C4, adjustable electric capacity CP1, An inductor L1, a triode Q1 and an antenna ANT, wherein the base of the triode Q1 is respectively connected with two ends of a first resistor R1 through a first capacitor C1 and a second capacitor C2, the base of the triode Q1 is externally connected with a 5V direct-current voltage power supply through a second resistor R2, the collector of the triode Q1 is externally connected with a 5V direct-current voltage power supply through an inductor L1, the collector of the triode Q1 is externally connected with a 5V direct-current voltage power supply through an adjustable capacitor CP1, the collector of the triode Q1 is connected with the emitter of the triode Q1 through a third capacitor C3, the base of the triode Q1 is connected with the emitter of the triode Q1 through a series circuit formed by a second capacitor C2 and a third resistor R3, the third resistor R3 is connected with a fourth capacitor C4 in parallel, and the antenna ANT is connected with the center point of the inductor L1;

The dust prevention mechanism comprises a collection box, a rotating assembly and a plurality of dust prevention assemblies, the dust prevention assemblies are uniformly distributed above the collection box from top to bottom, each dust prevention assembly comprises an absorption chamber, a suction head, a fan and a heating pipe, the absorption chambers and the collection box are fixed in a shell, the absorption chambers are sequentially communicated, the collection box is communicated with the absorption chambers, the fans are fixed in the absorption chambers, the suction heads are communicated with the absorption chambers, the suction heads are matched with the heating pipes, and the rotating assemblies are in transmission connection with the heating pipes;

The lifting mechanism comprises a bearing shaft and a plurality of lifting components, the top end of the bearing shaft is fixed below the center of the supporting plate, the lifting components are circumferentially and uniformly distributed on the periphery of the bearing shaft and comprise a connecting rod, a second motor, a gear and a rack, the second motor is fixedly connected with the base through the connecting rod and is connected with the gear in a transmission manner, the gear is meshed with the rack, and the rack is fixed on the periphery of the bearing shaft.

As preferred, for the drive heating pipe rotates, rotating assembly includes two rotating unit, and two rotating unit are located the both ends of heating pipe respectively, rotating unit includes belt, two drive unit and a plurality of support element, and two drive unit are located the both ends of belt respectively, drive unit includes third motor and action wheel, the third motor is fixed on the inner wall of casing, the third motor is connected with the action wheel transmission, and two action wheels pass through belt interconnect, support element's quantity equals with the quantity of heating pipe, support element and heating pipe one-to-one, the heating pipe passes through the support element and is connected with the inner wall of casing.

Preferably, in order to support the heating pipe to rotate, the supporting unit comprises a driven wheel, a rotating rod and a bearing, the bearing is fixed on the inner wall of the shell, the bearing is sleeved on one end of the rotating rod, the other end of the rotating rod is fixed on one side of the driven wheel, the other side of the driven wheel is fixedly connected with the heating pipe, and the driven wheel abuts against the inner side of the belt.

Preferably, in order to make the warmer more intelligent, a controller is arranged on the base, a plurality of keys are arranged on the controller, a wireless signal receiving and transmitting module and a processor are arranged in the controller, and the keys, the wireless signal receiving and transmitting module, the first motor, the heating pipe, the fan, the first motor, the second motor and the third motor are all electrically connected with the processor.

Preferably, in order to limit the moving distance of the rack, a limiting plate is arranged at the bottom end of the bearing shaft, the limiting plate is circular, a limiting block is arranged on one side, close to the bearing shaft, of each connecting rod, the limiting block is located above the limiting plate, and the distance from one side, far away from the connecting rods, of the limiting block to the axis of the bearing shaft is smaller than the radius of the limiting plate.

preferably, in order to prevent the shell from shaking, the auxiliary mechanism comprises two auxiliary assemblies, the two auxiliary assemblies are respectively located on two sides of the shell, each auxiliary assembly comprises a sleeve ring, a fixed rod, a sliding block and a sliding rail, the sleeve ring is fixedly connected with the shell, the sleeve ring is sleeved on the fixed rod, the sliding block is fixed at the bottom end of the fixed rod, the sliding block is slidably connected with the sliding rail, the sliding rail is arc-shaped, and the sliding rail is fixed above the base.

Preferably, in order to remove the peculiar smell emitted by the heating pipe, an opening is formed in one side, away from the dustproof mechanism, of the shell, and an activated carbon filter screen is arranged at the opening.

Preferably, in order to facilitate moving the warmer, a plurality of universal wheels are arranged below the base, and the universal wheels are uniformly distributed below the base in the circumferential direction.

Preferably, in order to facilitate heat collection, the vertical section of the suction head is semicircular, an aluminum coating is plated on the inner side of the suction head, and a glass layer is arranged outside the aluminum coating.

the liftable dustproof household warmer has the advantages that the dustproof household warmer cleans dust on the heating pipe through the dustproof mechanism, the dedusting function is achieved, compared with the existing dustproof mechanism, the dustproof mechanism is ingenious in design and convenient to use, user troubles are reduced, moreover, the height of the shell can be adjusted through the lifting mechanism, the lifting function is achieved, compared with the existing lifting mechanism, the liftable dustproof household warmer is simple in structure and high in practicability, a common three-point oscillation circuit is adopted in a wireless communication circuit, the practicability of the circuit is improved, meanwhile, the circuit adopts large current emission, the height of the circuit can reach 1km in an open area, the reliability of remote monitoring of a worker on the system is guaranteed, and the practicability of the liftable dustproof household warmer is improved.

Drawings

the invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a liftable dustproof household warmer of the present invention;

FIG. 2 is an enlarged view of section A of the present invention;

FIG. 3 is a schematic structural diagram of a dustproof mechanism of the liftable dustproof household warmer of the present invention;

FIG. 4 is a schematic structural diagram of a rotary component of the liftable dustproof household warmer of the present invention;

FIG. 5 is a circuit diagram of a liftable and lowerable dust-proof type home warmer of the present invention;

in the figure: 1. the device comprises a shell, 2, a base, 3, a first motor, 4, a supporting plate, 5, a lifting pipe, 6, a fixed pipe, 7, a connecting rod, 8, a bearing shaft, 9, a second motor, 10, a gear, 11, a rack, 12, a limiting block, 13, a limiting plate, 14, a heating pipe, 15, a sucker, 16, an absorption chamber, 17, a fan, 18, a belt, 19, a collection box, 20, an activated carbon filter screen, 21, a controller, 22, a third motor, 23, a driving wheel, 24, a driven wheel, 25, a lantern ring, 26, a fixing rod, 27, a sliding block, 28, a sliding rail, 29, a universal wheel, 30, a rotating rod, 31, a bearing, R1, a first resistor, R2, a second resistor, R3, a third resistor, C1, a second capacitor C2., C3., a third capacitor, C4, a fourth capacitor, CP1, an adjustable capacitor, an inductor, Q1., an triode and an antenna.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, a liftable domestic room heater of dust type, including casing 1, first motor 3, backup pad 4, fall way 5, fixed pipe 6 and base 2, the bottom of casing 1 is fixed on the output shaft of first motor 3, first motor 3 is connected with casing 1 transmission, first motor 3 is fixed in the top of backup pad 4, fall way 5 is fixed in the below of backup pad 4, fall way 5 cover is established on fixed pipe 6, the bottom mounting of fixed pipe 6 is on base 2, the both sides of casing 1 are equipped with complementary unit, be equipped with dustproof mechanism and wireless communication module in the casing 1, be equipped with elevating system in the fixed pipe 6, wireless communication module includes wireless communication circuit, wireless communication circuit includes first resistance R1, second resistance R2, third resistance R3, first electric capacity C1, A second capacitor C2, a third capacitor C3, a fourth capacitor C4, an adjustable capacitor CP1, an inductor L1, a triode Q1 and an antenna ANT, the base of the triode Q1 is connected to the two ends of the first resistor R1 through the first capacitor C1 and the second capacitor C2 respectively, the base of the triode Q1 is externally connected with a 5V direct current voltage power supply through a second resistor R2, the collector of the triode Q1 is externally connected with the 5V direct current voltage power supply through an inductor L1, the collector of the triode Q1 is externally connected with a 5V dc voltage power supply through an adjustable capacitor CP1, the collector of the transistor Q1 is connected to the emitter of the transistor Q1 through a third capacitor C3, the base of the triode Q1 is connected with the emitter of the triode Q1 through a series circuit composed of a second capacitor C2 and a third resistor R3, the third resistor R3 is connected in parallel with a fourth capacitor C4, and the antenna ANT is connected with the central point of an inductor L1;

The user makes casing 1 rotate on the horizontal direction through driving first motor 3, through starting dustproof mechanism, clears up the dust in the casing 1, has realized the function of removing dust, through starting elevating system, makes 4 lifts and falls of backup pad and drive elevator pipe 5 and remove in vertical direction to adjust the height of casing 1, the user of being convenient for uses.

As shown in fig. 2, the dustproof mechanism includes a collection box 19, a rotating assembly and a plurality of dustproof assemblies, the dustproof assemblies are uniformly distributed above the collection box 19 from top to bottom, the dustproof assemblies include an absorption chamber 16, a suction head 15, a fan 17 and a heating pipe 14, the absorption chamber 16 and the collection box 19 are both fixed in the housing 1, the absorption chambers 16 are sequentially communicated, the collection box 19 is communicated with the absorption chamber 16, the fan 17 is fixed in the absorption chamber 16, the suction head 15 is communicated with the absorption chamber 16, the suction head 15 is matched with the heating pipe 14, and the rotating assembly is in transmission connection with the heating pipe 14.

When the dustproof mechanism is started, the fan 17 generates wind power to suck dust on the heating pipe 14 into the absorption chamber 16 through the suction head 15, so that the dust falls into the collection box 19, the rotating assembly controls the heating pipe 14 to rotate, the dustproof mechanism is convenient to clean the heating pipe 14, and the dust is prevented from influencing the heating effect of the heating pipe 14.

As shown in fig. 3, the lifting mechanism includes a bearing shaft 8 and a plurality of lifting assemblies, the top end of the bearing shaft 8 is fixed below the center of the support plate 4, the lifting assemblies are circumferentially and uniformly distributed on the periphery of the bearing shaft 8, each lifting assembly includes a connecting rod 7, a second motor 9, a gear 10 and a rack 11, the second motor 9 is fixedly connected with the base 2 through the connecting rod 7, the second motor 9 is in transmission connection with the gear 10, the gear 10 is meshed with the rack 11, and the rack 11 is fixed on the periphery of the bearing shaft 8, and the length of the rack 11 and the length of the bearing shaft 8 are both smaller than the length of the fixed pipe 6.

when a user uses the lifting mechanism, the second motor 9 is started, the gear 10 is rotated to drive the rack 11 to move up and down, the bearing shaft 8 and the support plate 4 are moved along with the rack, the first motor 3 and the shell 1 are driven to move up and down, the height of the warmer is adjusted, and the warming range is expanded.

As shown in fig. 4, the rotating assembly includes two rotating units, the two rotating units are respectively located at two ends of the heating pipe 14, the rotating unit includes a belt 18, two driving units and a plurality of supporting units, the two driving units are respectively located at two ends of the belt 18, the driving units include a third motor 22 and a driving wheel 23, the third motor 22 is fixed on the inner wall of the casing 1, the third motor 22 is in transmission connection with the driving wheel 23, the two driving wheels 23 are connected with each other through the belt 18, the number of the supporting units is equal to that of the heating pipes 14, the supporting units correspond to the heating pipes 14 one to one, and the heating pipes 14 are connected with the inner wall of the casing 1 through the supporting units. The support unit keeps the horizontal position of the heating pipe 14 unchanged, the third motor 2 is started to rotate the driving wheel 23, the heating pipe 14 is rotated through the transmission action of the belt 18, and the dustproof mechanism is convenient to clean the surface of the whole heating pipe 14.

preferably, in order to support the heating pipe 14 to rotate, the supporting unit includes a driven wheel 24, a rotating rod 30 and a bearing 31, the bearing 31 is fixed on the inner wall of the housing 1, the bearing 31 is sleeved on one end of the rotating rod 30, the other end of the rotating rod 30 is fixed on one side of the driven wheel 24, the other side of the driven wheel 24 is fixedly connected with the heating pipe 14, and the driven wheel 24 abuts against the inner side of the belt 18. When the driving wheel 23 rotates, the driven wheel 24 rotates along with the driving wheel through the belt 18, the heating pipe 14 and the rotating rod 30 are driven to rotate, and the bearing 31 limits the position of the rotating rod 30, so that the position of the heating pipe 14 in the horizontal direction is kept unchanged.

Preferably, in order to make the warmer more intelligent, the base 2 is provided with a controller 21, the controller 21 is provided with a plurality of keys, the controller 21 is internally provided with a wireless signal transceiver module and a processor, and the keys, the wireless signal transceiver module, the first motor 3, the heating pipe 14, the fan 17, the first motor 3, the second motor 9 and the third motor 22 are all electrically connected with the processor. The user sends a signal to the wireless signal transceiver module by pressing a key on the controller 21, the wireless signal transceiver module receives the signal and then transmits the signal to the processor, and the processor controls each component on the warmer to operate.

Preferably, in order to limit the moving distance of the rack 11, a limiting plate 13 is arranged at the bottom end of the bearing shaft 8, the limiting plate 13 is circular, a limiting block 12 is arranged on one side of each connecting rod 7 close to the bearing shaft 8, the limiting block 12 is located above the limiting plate 13, and the distance from one side of the limiting block 12 far away from the connecting rod 7 to the axis of the bearing shaft 8 is smaller than the radius of the limiting plate 13. When the rack 11 moves upwards, the limiting block 12 enables the limiting plate 13 to move to the position where the limiting block 12 abuts against the lower side of the limiting block, the moving distance of the rack 11 and the bearing shaft 8 is limited, and the rack 11 is prevented from being separated from the gear 10.

Preferably, in order to prevent the casing 1 from shaking, the auxiliary mechanism includes two auxiliary assemblies, the two auxiliary assemblies are respectively located at two sides of the casing, the auxiliary assemblies include a collar 25, a fixing rod 26, a slider 27 and a slide rail 28, the collar 25 is fixedly connected with the casing 1, the collar 25 is sleeved on the fixing rod 26, the slider 27 is fixed at the bottom end of the fixing rod 26, the slider 27 is slidably connected with the slide rail 26, the slide rail 26 is arc-shaped, and the slide rail 26 is fixed above the base 2. When the casing 1 rotates under the driving action of the first motor, the lantern ring 25 moves along with the casing to drive the fixing rod 26 to move, so that the sliding block 27 slides in the sliding rail 26, and the fixing rod 26 always keeps a vertical state, so that the lantern ring 25 is not easy to shake, and the casing 1 is kept balanced.

Preferably, in order to remove the odor emitted by the heating pipe 14, an opening is formed in one side of the housing 1 away from the dustproof mechanism, and an activated carbon filter screen 20 is arranged at the opening. The peculiar smell generated by the heating pipe 14 is removed by the adsorption action of the activated carbon filter screen 20.

preferably, in order to facilitate moving the warmer, a plurality of universal wheels 29 are arranged below the base 2, and the universal wheels 29 are uniformly distributed below the base 2 in the circumferential direction. The universal wheel 29 facilitates the user to move the warmer in all directions.

Preferably, in order to facilitate heat collection, the suction head 15 has a semicircular vertical cross section, and an aluminum plating layer is plated on the inner side of the suction head 15 and is provided with a glass layer outside. The aluminum coating on the inner side of the suction head 15 can reflect light and heat of the heating pipe 14, the glass layer reduces the heat transferred to the suction head 15, and the vertical section of the semicircular suction head 15 is more beneficial to heat collection.

The user controls various equipment on the room heater through controller 21, makes casing 1 rotate on the horizontal direction through first motor 3, through the dust on the heating pipe 14 in dustproof mechanism clearance casing 1, prevents that the dust from influencing heating pipe 14 and generating heat, through starting elevating system, makes backup pad 4 reciprocate and drive elevator pipe 5 and remove to adjust the height of casing 1, convenience of customers uses.

Compared with the prior art, this liftable domestic room heater of dust type passes through dust prevention mechanism clearance dust on the heating pipe 14, the function of removing dust has been realized, compare with current dust prevention mechanism, this dust prevention mechanism design benefit, high durability and convenient use, user's trouble has been reduced, moreover, still can adjust casing 1's height through elevating system, the function of lift has been realized, compare with current elevating system, moreover, the steam generator is simple in structure, the practicality is higher, in wireless communication circuit, adopt ordinary three-point type oscillation circuit, thereby the practicality of this circuit has been improved, and simultaneously, this circuit adopts heavy current transmission, can reach 1km in open area, the reliability of staff to the remote monitoring of system has been guaranteed, its practicality has been improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. the liftable dustproof household warmer comprises a shell (1), a first motor (3), a supporting plate (4), a lifting pipe (5), a fixed pipe (6) and a base (2), wherein the bottom of the shell (1) is fixed on an output shaft of the first motor (3), the first motor (3) is in transmission connection with the shell (1), the first motor (3) is fixed above the supporting plate (4), the lifting pipe (5) is fixed below the supporting plate (4), the lifting pipe (5) is sleeved on the fixed pipe (6), the bottom end of the fixed pipe (6) is fixed on the base (2), auxiliary mechanisms are arranged on two sides of the shell (1), and the liftable dustproof household warmer is characterized in that a dustproof mechanism and a wireless communication module are arranged in the shell (1), a lifting mechanism is arranged in the fixed pipe (6), the wireless communication module comprises a wireless communication circuit, the wireless communication circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, an adjustable capacitor CP1, an inductor L1, a triode Q1 and an antenna ANT, wherein the base of the triode Q1 is respectively connected with two ends of the first resistor R1 through the first capacitor C1 and the second capacitor C2, the base of the triode Q1 is externally connected with a 5V direct current voltage power supply through the second resistor R2, the collector of the triode Q1 is externally connected with a 5V direct current voltage power supply through the inductor L1, the collector of the triode Q1 is externally connected with a 5V direct current voltage power supply through the adjustable capacitor CP1, the collector of the triode Q1 is connected with the emitter of the triode Q1 through the third capacitor C3, the base of the triode Q1 is connected with the emitter 1 through a series circuit consisting of the second capacitor C2 and the third resistor R3, the third resistor R3 is connected in parallel with a fourth capacitor C4, and the antenna ANT is connected with the central point of an inductor L1;

The dustproof mechanism comprises a collection box (19), a rotating assembly and a plurality of dustproof assemblies, the dustproof assemblies are uniformly distributed above the collection box (19) from top to bottom, each dustproof assembly comprises an absorption chamber (16), a suction head (15), a fan (17) and a heating pipe (14), the absorption chambers (16) and the collection box (19) are fixed in the shell (1), the absorption chambers (16) are sequentially communicated, the collection box (19) is communicated with the absorption chambers (16), the fan (17) is fixed in the absorption chambers (16), the suction heads (15) are communicated with the absorption chambers (16), the suction heads (15) are matched with the heating pipes (14), and the rotating assemblies are in transmission connection with the heating pipes (14);

Elevating system includes bearing axle (8) and a plurality of lifting unit, the below at the center department of backup pad (4) is fixed on the top of bearing axle (8), lifting unit circumference evenly distributed is in the periphery of bearing axle (8), lifting unit includes connecting rod (7), second motor (9), gear (10) and rack (11), second motor (9) pass through connecting rod (7) and base (2) fixed connection, second motor (9) are connected with gear (10) transmission, gear (10) and rack (11) meshing, rack (11) are fixed in the periphery of bearing axle (8), the length of rack (11) and the length of bearing axle (8) all are less than the length of fixed pipe (6).

2. The liftable dust-proof household warmer of claim 1, wherein the rotating assembly comprises two rotating units, the two rotating units are respectively located at two ends of the heating pipe (14), the rotating unit comprises a belt (18), two driving units and a plurality of supporting units, the two driving units are respectively positioned at two ends of the belt (18), the drive unit comprises a third motor (22) and a driving wheel (23), the third motor (22) is fixed on the inner wall of the shell (1), the third motor (22) is in transmission connection with the driving wheels (23), the two driving wheels (23) are connected with each other through a belt (18), the number of the supporting units is equal to that of the heating pipes (14), the supporting units correspond to the heating pipes (14) one by one, the heating pipe (14) is connected with the inner wall of the shell (1) through a supporting unit.

3. The liftable dustproof household warmer of claim 2, wherein the supporting unit comprises a driven wheel (24), a rotating rod (30) and a bearing (31), the bearing (31) is fixed on the inner wall of the shell (1), the bearing (31) is sleeved on one end of the rotating rod (30), the other end of the rotating rod (30) is fixed on one side of the driven wheel (24), the other side of the driven wheel (24) is fixedly connected with the heating pipe (14), and the driven wheel (24) abuts against the inner side of the belt (18).

4. The liftable dustproof household warmer of claim 2, wherein the base (2) is provided with a controller (21), the controller (21) is provided with a plurality of keys, the controller (21) is internally provided with a wireless signal transceiver module and a processor, and the keys, the wireless signal transceiver module, the first motor (3), the heating pipe (14), the fan (17), the first motor (3), the second motor (9) and the third motor (22) are all electrically connected with the processor.

5. The liftable dustproof household warmer of claim 1, wherein a limiting plate (13) is arranged at the bottom end of the bearing shaft (8), the limiting plate (13) is circular, a limiting block (12) is arranged on one side of each connecting rod (7) close to the bearing shaft (8), the limiting block (12) is positioned above the limiting plate (13), and the distance from one side of the limiting block (12) far away from the connecting rod (7) to the axis of the bearing shaft (8) is smaller than the radius of the limiting plate (13).

6. The liftable dustproof household warmer of claim 1, wherein the auxiliary mechanism comprises two auxiliary assemblies, the two auxiliary assemblies are respectively arranged at two sides of the shell, the auxiliary assemblies comprise a sleeve ring (25), a fixing rod (26), a sliding block (27) and a sliding rail (28), the sleeve ring (25) is fixedly connected with the shell (1), the sleeve ring (25) is sleeved on the fixing rod (26), the sliding block (27) is fixed at the bottom end of the fixing rod (26), the sliding block (27) is slidably connected with the sliding rail (26), the sliding rail (26) is arc-shaped, and the sliding rail (26) is fixed above the base (2).

7. The liftable dust-proof household warmer of claim 1, wherein an opening is arranged on one side of the shell (1) far away from the dust-proof mechanism, and an activated carbon filter screen (20) is arranged at the opening.

8. The liftable dust-proof household warmer of claim 1, wherein a plurality of universal wheels (29) are arranged below the base (2), and the universal wheels (29) are circumferentially and uniformly distributed below the base (2).

9. The liftable dust-proof household warmer of claim 1, wherein the vertical section of the suction head (15) is semicircular, the inner side of the suction head (15) is plated with an aluminum coating, and the outer side of the aluminum coating is provided with a glass layer.