CN212431170U

CN212431170U - Air purifier with air intake from below

Info

Publication number: CN212431170U
Application number: CN202020775738.6U
Authority: CN
Inventors: 刘祥宇; 王宁; 矫立涛; 张展; 汪鹏飞; 魏传超
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-01-29
Anticipated expiration: 2030-05-11

Abstract

The utility model belongs to the technical field of air purification, and in particular relates to an air purification device for air intake from below. The air purifying device for air intake from below of the present invention comprises a water tank and a water curtain assembly, and further comprises: a base for supporting the water tank; a double-shaft motor, which is installed on the base, and the double-shaft motor comprises a double-shaft motor body and a first motor shaft. and a second motor shaft, the first motor shaft extends upward from the biaxial motor main body and is connected to the water curtain assembly, the second motor shaft extends downward from the biaxial motor main body; the fan is connected to the second motor shaft. By arranging the double-shaft motor, it is convenient to drive the operation of the water curtain assembly and the rotation of the fan synchronously, which not only reduces the weight of the device, but also reduces the energy consumption, which is beneficial to reduce the cost of the device.

Description

Air purification device with air intake from below

Technical Field

The utility model belongs to the technical field of air purification, concretely relates to air purification device from below air inlet.

Background

With the increasingly worsening of the environment, the problem of air pollution is more and more concerned by people, and therefore various air purifiers are generated. The air purifier is a product capable of adsorbing, decomposing or converting various air pollutants and effectively improving the air cleanliness.

At present, air purifiers used in families all adopt a dry type multilayer filtering and adsorbing method (such as electrostatic adsorption, activated carbon adsorption, HEPA (high efficiency particulate air) filtration and the like) to purify air. When the air purifier works, pollutants can be directly accumulated on a filter screen of the filtering device, air holes in the filter screen can be blocked if the pollutants are accumulated for a long time, the air filtering effect is influenced, and dust accumulated on the filter screen can become a bacteria multiplication body to form secondary pollution. Therefore, the water washing air purification product can be produced at the same time.

Current washing air purification device includes water tank, water curtain subassembly, motor and fan, and the water curtain subassembly is located the water tank, and the water curtain subassembly forms the water curtain with the water in the water tank under motor drive, and dirty gas gets into the water tank and obtains purifying with the water curtain contact that the water curtain subassembly formed under the effect of fan. The purified clean gas is discharged from the air outlet, so that the purification of the dust-containing gas is realized, and the quality of the surrounding air is improved.

When the washing air purification device operates, the fan and the motor are required to be controlled independently and are also required to be supplied with power independently, so that the washing air purification device is complicated to control and high in energy consumption.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, control for solving current washing air purification device is loaded down with trivial details, and the big problem of energy consumption, the utility model provides an air purification device of air inlet from below, including water tank, water curtain subassembly, still include: a base for supporting the water tank; the double-shaft motor is arranged on the base and comprises a double-shaft motor main body, a first motor shaft and a second motor shaft, the first motor shaft extends upwards from the double-shaft motor main body and is connected to the water curtain assembly, and the second motor shaft extends downwards from the double-shaft motor main body; a fan connected to the second motor shaft; the base shell is sleeved outside the base and used for supporting the base, the base shell is provided with an air inlet facing downwards, and an air inlet channel for air to pass through is arranged between at least part of the base shell and the base; the water tank is provided with an air inlet and an air outlet, and the air inlet of the water tank is communicated with the air inlet channel.

In the above preferred technical solution of the air purification apparatus that enters air from below, the fan includes a fan housing and fan blades connected to a side wall of the fan housing, and at least a part of the fan housing is sleeved at a lower end of the double-shaft motor main body.

In the above preferred technical scheme of the air purification device that air enters from the lower side, a limiting check ring is sleeved on the second motor shaft, the limiting check ring abuts against the fan housing, and the second motor shaft penetrates through the fan housing and is in threaded connection with the nut.

In the above preferred technical solution of the air purification apparatus that enters air from below, the fan housing is provided with a reinforcing block, the reinforcing block includes a first end and a second end, the first end of the reinforcing block abuts against the lower end of the limiting retainer ring, and the second end of the reinforcing block penetrates through the fan housing and abuts against the upper end of the nut.

In the above preferred embodiment of the air cleaning apparatus, the air is introduced from below, and the double-shaft motor main body is mounted on the base in a suspended manner.

In the above preferred technical scheme of the air purification device that enters air from below, the bottom end of the base shell is provided with an air inlet grille, and the air inlet grille is used for dividing the air entering the air inlet channel into a plurality of areas.

In the above preferred technical scheme of the air purification device that enters air from the lower part, a filter screen is arranged on the air inlet grille and used for adsorbing and filtering the air entering the air inlet channel.

In the above-mentioned air purification device's of air inlet from below preferred technical scheme, the base shell includes the fan installation section, fan installation section cover is located the outside of fan, from the bottom up, at least part the fan installation section is towards gradually the fan is crooked.

In the above-mentioned air purification device's of air inlet from below preferred technical scheme, the top of fan installation section is equipped with the pedestal mounting section, at least part is located to the pedestal mounting section cover the outside of water tank, be connected with the orientation on the fan installation section the extension board that the outside of basic shell extends, the pedestal mounting section connect in the extension board is kept away from the one end of fan installation section.

In the above-mentioned air purification device's of air inlet from below preferred technical scheme, the inner wall of base shell is equipped with the stationary blade, the stationary blade is followed the radial setting of base shell just is used for equalling divide the gas in the inlet air duct.

As can be understood by those skilled in the art, the air purification device of the present invention, which introduces air from below, is provided with the double-shaft motor, and drives the water curtain assembly to operate through the first motor shaft, and drives the fan to operate through the second motor shaft, so that the water curtain assembly and the fan are driven by the unified driving source, thereby not only reducing the weight of the device, but also reducing the energy consumption, and being beneficial to reducing the cost of the device; in addition, the motor and the fan are both positioned below the device, so that the gravity center of the device is lowered, and the integral stability of the device is facilitated; in addition, the mode of below air inlet is adopted, so that the application range of the device is conveniently widened.

Drawings

The preferred embodiment of the air cleaning device of the present invention for supplying air from below will be described with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 shows an air cleaning apparatus of the present applicant's utility model, which introduces air from the side;

FIG. 2 is a perspective view of an air cleaning device with air intake from below;

FIG. 3 shows an exploded view of an air cleaning device with air intake from below;

FIG. 4 illustrates a water curtain assembly for forming a water curtain;

FIG. 5 shows a cross-sectional view of a water wash section and a portion of a substrate;

FIG. 6 shows a partial cross-sectional view of a power section;

FIG. 7 shows a perspective, partially longitudinal cross-sectional view of FIG. 2;

FIG. 8 is an enlarged view of FIG. 7 at A;

fig. 9 shows a plan view of a base body.

Detailed Description

Fig. 1 shows an air purification device that enters air from the side, as shown in fig. 1, the air purification device that enters air from the side includes a washing portion 100, a power portion, an air inlet portion 300 and an air outlet portion 400, wherein the washing portion 100 includes a water tank and a water curtain assembly, the power portion includes a motor, and the air outlet portion 400 includes a fan. The water curtain subassembly is located the water tank, and the water curtain subassembly forms the water curtain with the water in the water tank under motor drive, and dusty gas is inside the air intake direct entering water tank that the lateral wall of water tank set up under the effect of fan to the water curtain contact that forms with the water curtain subassembly obtains purifying. The purified clean air is discharged from the air outlet of the air outlet part 400.

It will be appreciated that since the air is supplied from the side, in use, the air inlet end of the device is spaced from the wall surface to allow the introduction of dust-laden air. Therefore, the air purification device which adopts the air intake from the side has certain requirements on the placement position. In addition, since the blower needs to be located in the flow channel of the air to guide the air, the blower is located above the water tank or on the side wall of the water tank (the blower is shown above the water tank in fig. 1 as an example). The motor is used for driving the water curtain component in the water tank to rotate, so the motor is generally arranged below the water tank. Therefore, the fan and the motor are respectively arranged at the upper side and the lower side of the water tank, and the fan and the motor need to be separately powered and a control system needs to be configured, so that the control of the device is complicated, and the energy consumption is high.

In order to solve the problem, the placing range of the air purifying device is improved by adopting a mode of air inlet from the lower part. In addition, a double-shaft motor is adopted to replace a single-shaft motor, so that synchronous operation of the water curtain assembly and the fan is realized, the energy consumption of the device is reduced, the cost of the device is reduced, and the installation of each assembly of the device is facilitated.

The technical scheme of the air purification device for air intake from the lower part of the utility model is explained by combining the attached drawings.

Fig. 2 is a perspective view showing an air cleaning apparatus for supplying air from below, fig. 3 is an exploded view showing the air cleaning apparatus for supplying air from below, and as shown in fig. 2 and 3, the water-washing air cleaning apparatus for supplying air from below includes an air inlet portion 3, a water-washing portion 1, and an air outlet portion 4 according to the flow direction of air. The air inlet portion is located the bottommost of whole device, and washing portion 1 is located the top of air inlet portion 3, and air-out portion 4 is located washing portion 1 top. The outside dust-containing gas enters the air inlet part 3 from the lower part, and is guided into the water tank 11 of the water washing part 1 through the air inlet part 3, and is purified by the water curtain component in the water tank 11 to obtain the clean gas, and the clean gas flows out to the outside through the air outlet part 4.

In fig. 2, the water washing air device is further provided with a base body 5 for bearing the water tank, and the air inlet portion 3 and the power portion 2 can be arranged by depending on the base body so as to realize modularized and integrated arrangement. In other words, the air inlet portion 3 may be formed integrally with the base 5 by molding, for example, a side wall of the integral body serves as the air inlet portion 3, and a bottom wall of the integral body serves as a base for mounting the power portion 2 and for supporting the water tank 11.

The water tank 11 has an air inlet 111 communicating with the air inlet portion 3 and an air outlet communicating with the air outlet portion 4. Illustratively, the air outlet portion 4 includes an air outlet housing 41, the air outlet housing 41 can be covered on the air outlet of the water tank 11, and the purified air enters the air outlet housing 41 from the air outlet of the water tank 11, so that the purified air can be guided to any desired direction through the air outlet housing 41. For example, fig. 2 and 3 show that the purified air discharged from the outlet port of the water tank 11 is guided to the left, right, and rear sides in the drawing through the outlet hood 41.

The following describes each part of the water washing air device in detail.

As shown in fig. 3, the water tank 11 may be made of a transparent material, for example, a transparent plastic material manufactured by molding. The water tank 11 may include a bottom wall and a side wall, and the side wall of the water tank 11 is connected to the bottom wall of the water tank 11 and extends upward. The tank 11 may contain a cleaning fluid for cleaning air, which may be but is not limited to fresh water, for example, water mixed with a disinfectant. For the sake of brief description, the following description is given by way of example of water, but this should not be taken as a specific limitation of the scope of protection.

An air inlet is formed in the side wall of the water tank 11, so that air entering from the air inlet portion 3 can enter the water tank 11 from the air inlet, a preset distance can be reserved between the lower end of the air inlet and the bottom wall of the water tank 11, and therefore water for cleaning air can be stored in a containing space defined by the side wall of the water tank 11 below the air inlet and the bottom wall of the water tank 11. The gas may enter a primary filter assembly as hereinafter described before entering the air inlet of the water tank 11; a side water retaining structure can be arranged on the inner side of the air inlet so as to prevent water from splashing out of the water tank 11 from the air inlet; a humidifying filter assembly can also be optionally arranged on the inner side of the side water retaining structure so as to improve the humidity of the gas.

In addition, the top end of the water tank 11 may be opened to serve as an air outlet, so that air entering the inside of the water tank 11 can flow out from the top end opening of the water tank 11. The air outlet can be provided with an upper water retaining structure so as to shield the air outlet of the water tank 11, and the water thrown from the water throwing hole 121 can be blocked by the upper water retaining structure, so that the water cannot splash to the outside of the water tank 11 from the air outlet of the water tank 11.

It should be noted that the positions of the air inlet and the air outlet can be reversed, or in some examples, the air inlet and the air outlet can be arranged on the opposite side walls of the water tank 11.

With continued reference to fig. 3, the number of the air inlets may be multiple, but may also be only one, and the shape and size of each air inlet may be set according to actual needs. As shown in fig. 2, when there are a plurality of air inlets, the air inlets may be uniformly distributed along the circumferential direction of the side wall of the water tank 11 so as to equally divide the air, so that the air entering the water tank 11 is uniformly distributed.

The side wall below the air inlet can be provided with scale marks so that a user can observe and control the liquid level condition of the water tank 11. It is easily understood that the water tank 11 may be made of a transparent material only at a portion where the graduation marks are provided, and the remaining portion is made of a non-transparent material, so that a user can observe the water level in the water tank 11 through the graduation marks of the transparent portion. Referring to FIG. 2, the tick mark may include the lowest liquid level line, which may be shown as "0"; the highest liquid level line may also be included, which may be indicated by "max". It will be appreciated that the scale line marked "max" is located below the air inlet.

It should be noted that, when the air inlet is disposed on the side wall of the water tank 11 and the air outlet is located at the top of the water tank 11, the upper end surface of the air inlet should be lower than the plane of the water curtain formed by the water curtain component, so that the dust-containing air entering the water tank 11 from the air inlet can flow out of the air outlet of the water tank 11 only after the water curtain is cleaned. It should be noted that, since the water is influenced by gravity, the plane of the water curtain is generally indicated, and in principle, the upper end surface of the air inlet should be located below the intersection line of the water curtain and the side wall.

The structure of the water curtain assembly will be briefly described below.

The water curtain assembly may raise the water stored in the water tank 11 upward and spray the water toward the inner wall of the water tank 11. Fig. 4 shows a water curtain assembly for forming a water curtain, and as shown in fig. 4, the water curtain assembly may include a cylindrical body 12 having a hollow arrangement, and the lower end of the cylindrical body 12 has an open arrangement. A gap is provided between the lower end opening of the cylinder 12 and the bottom wall of the water tank 11 so that water in the water tank 11 enters the interior of the cylinder 12 from the gap. The power part 2 can rotate the cylinder 12 around its own axis so that the water entering the cylinder 12 gradually moves upward along the inner wall of the cylinder 12 by the rotating force. A plurality of water throwing holes 121 are circumferentially arranged on the side wall of the cylinder 12 close to the top end, and the water throwing holes 121 are higher than the highest liquid level of the washing liquid contained in the water tank 11, so that the water thrown up from the inner wall of the cylinder 12 is thrown out from the water throwing holes 121, is far away from the cylinder 12 at a certain initial speed (the initial speed is the linear speed of the positions of the water throwing holes 121), and gradually approaches the inner wall of the water tank 11 to form a water curtain so as to clean the gas entering from the air inlet. It is noted that the plurality of water-throwing holes 121 may be uniformly or non-uniformly arranged in a circle along the circumferential direction of the cylinder 12, and in some examples, a plurality of circles of water-throwing holes 121 may be further provided along the axis of the cylinder 12 to enhance the water washing purification effect.

Fig. 5 shows a cross-sectional view of a water washing part and a part of a base body, and referring to fig. 4 and 5, an upper end of the cylinder 12 may be provided with an opening, and an upper cover 13 may be provided at the upper end of the cylinder 12, and the upper cover 13 may be used to close the upper end opening of the cylinder 12. In addition, when the water in the cylinder 12 rises to the upper end surface of the cylinder 12 along with the rotation of the cylinder 12, the water can fall down by being blocked by the upper end surface, so that at least part of the water blocked by the upper end surface flows out of the water throwing holes 121, and the water yield of the water throwing holes 121 is increased.

Alternatively, the upper cover 13 may include a bottom wall and a side wall, the bottom wall of the upper cover 13 may abut against the upper end surface of the barrel 12, and the side wall of the upper cover 13 may be sleeved outside the barrel 12. The lower end surface of the side wall of the upper cover 13 is located above the water slinger hole 121 so as to block at least part of the water having a tendency to move upward. It will be appreciated that at least part of the water thrown from the water slinging holes 121 has a tendency to move upwards at an initial velocity, and this part of the water may have a trajectory above the dynamic range of the gas, and this part of the water may not come into contact with the gas, and the ability to intercept the water thrown from the water slinging holes 121 and moving towards the top of the tank 11 can be improved by providing a suitable flange on the side wall of the upper cover 13 extending away from the bowl 12. The intercepted water may fall onto the outer sidewall of the upper section 122 below the sidewall of the upper cover 13, and may be thrown out toward the inner sidewall of the water tank 11 by the centrifugal force along with the rotation of the upper section 122 to form a water curtain, so that the air purification effect may be improved.

Alternatively, the barrel 12 and the upper cover 13 may be formed as a single piece by injection molding or the like, and in this case, an upper water blocking protrusion may be provided above the water throwing hole 121, and the upper water blocking protrusion extends from the outer side wall of the barrel 12 toward the direction away from the barrel 12 so as to block at least part of the water having a tendency to move toward the top end of the water tank 11.

Alternatively, the upper end of the barrel 12 is open. The water slinging hole 121 of the cylinder 12 is served by an opening at the top end thereof, and the water slinging hole 121 may be provided or not provided on the side wall thereof. When the cylinder 12 is driven to rotate, the water sucked into the cylinder 12 ascends along the side wall thereof, and all or part of the ascended water can be thrown out from the top opening of the cylinder 12 and forms a water curtain.

Power unit 2

Hereinafter, the structure shown in fig. 5 is taken as an example to explain the power unit 2 and the engagement manner with the cylinder 12, that is, the upper cover 13 is disposed above the power unit, and the sidewall of the upper cover 13 is sleeved outside the cylinder 12, and the case that the power unit 2 drives the cylinder 12 to rotate will be described. It should be understood, however, that the configuration of the barrel 12 is not limited to the configuration of fig. 5, and may be other configurations as noted above.

The manner in which the power section drives the rotation of the cylinder will be briefly described below.

As shown in fig. 5, the power part may include a rotation shaft 21, a reducer, and a dual-shaft motor 29, the dual-shaft motor 29 may be electrically connected to an external power source, the dual-shaft motor 29 includes a dual-shaft motor body 291, a first motor shaft 292, and a second motor shaft 293, the first motor shaft 292 extending upward from the dual-shaft motor body 291. The base body 5 may include a base 51, the speed reducer may include a first bevel gear 23 rotatably provided on the base 51, a second bevel gear 24 rotatably connected to the bottom of the water tank 11, the first bevel gear 23 and the second bevel gear 24 are engaged with each other, and the second bevel gear 24 may be located above the first bevel gear 23.

It is understood that the structure of the decelerator may include, but is not limited to, the above structure. By adopting the separable matching mode of the first bevel gear 23 and the second bevel gear 24, etc., the disassembly of the water tank 11 and the base 51 can be facilitated, thereby facilitating the cleaning and/or water adding of the water tank 11. Specifically, when the water tank 11 and the base 51 need to be separated, the first bevel gear 23 and the second bevel gear 24 need only be separated.

Additionally, the first motor shaft 292 may be coaxially connected to the first beveled gear 23. The shaft 21 includes a first end and a second end, the first end of the shaft 21 can be coaxially connected to the second bevel gear 24, and the second end of the shaft 21 can be connected to the cylinder 12. Referring to fig. 5, the first end of the shaft 21 may be a lower end of the shaft 21, and the second end of the shaft 21 may be an upper end of the shaft 21. It can be understood that, after the dual-shaft motor 29 is powered on, the first motor shaft 292 of the dual-shaft motor 29 can drive the first helical gear 23 to rotate, the first helical gear 23 can drive the second helical gear 24 to rotate, and then drive the rotating shaft 21 connected to the second helical gear 24 to rotate, so that the cylinder 12 connected to the rotating shaft 21 rotates, and the functions of water absorption, water pumping and water spraying of the cylinder 12 from the water tank 11 are realized.

Fig. 6 shows a partial sectional view of a power part, and as shown in fig. 6, a second motor shaft 293 extends downward from a biaxial motor body 291. The second motor shaft 293 is connected to the fan 32 to drive the fan 32 to rotate, thereby sending the dust-containing gas from below to the upper water tank 11. It will be appreciated that both the first bevel gear 23 and the fan 32 can be driven by the same dual-shaft motor 29, which reduces cost and weight and facilitates installation.

Alternatively, the dual-shaft motor 29 may be mounted to the base 51 in a suspended manner, and specific embodiments may refer to the above mounting of the dual-shaft motor 29 and the base 51. That is, the mounting claws 223 are uniformly arranged on the outer periphery of the double-shaft motor body 291, through holes may be arranged on the mounting claws 223, and the fastening member may pass through the through holes to be connected with the base 51.

Alternatively, the fan 32 may include a fan 32 housing, at least two fan 32 blades 161 attached to a sidewall of the fan 32 housing. In order to reduce the height of the base 5 in the longitudinal direction, a fan 32 cover may be fitted over the lower end of the biaxial motor main body 291, and the fan 32 cover may rotate relative to the biaxial motor main body 291. For example, a limit stop ring 294 is sleeved on the second motor shaft 293, and one end of the second motor shaft 293 far away from the dual-shaft motor body 291 can penetrate through the casing of the fan 32 from top to bottom. A nut 295 is threadedly engaged with an end of the second motor shaft 293 that extends out of the housing of the fan 32, and a stop collar 294 abuts against an upper end of a bottom wall of the housing of the fan 32. The bottom wall of the housing of fan 32 can be clamped between retaining collar 294 and nut 295 by rotating nut 295.

In order to increase the strength of the casing of the fan 32 at the connection location, the casing of the fan 32 is optionally provided with a reinforcing block 233. The stiffener 233 may include a first end and a second end, the first end of the stiffener 233 may be located in the casing of the fan 32, and the limit stopper 294 may abut against an upper end surface of the stiffener 233. The second end of the reinforcing block 233 can extend out of the housing of the fan 32 and can abut against the upper end surface of the nut 295. The end of the second motor shaft 293 remote from the dual shaft motor body 291 may be threaded through the reinforcing block 233 and threadably attached to the nut 295. Furthermore, reinforcing ribs may be provided between the side walls of the reinforcing block 233 and the bottom wall of the casing of the fan 32 in order to enhance the strength of the reinforcing block 233.

Alternatively, the radius of the casing of the fan 32 may be gradually increased from bottom to top in order to direct the air coming from below to move outside and above the fan.

The installation of the power section 2 will be described in turn from bottom to top.

Mounting of the biaxial motor 29:

as shown in fig. 5, a biaxial motor body 291 may be mounted on the base 51 in a suspended manner so as to reduce the influence of vibration of the biaxial motor 29 on the components therebelow. For example, a mounting claw 223 extending outward from the dual shaft motor body 291 may be coupled to a sidewall of the dual shaft motor body 291, and a fastening hole may be formed in the mounting claw 223, and a fastening member may be coupled to the base 51 through the fastening hole. Illustratively, a plurality of mounting claws 223 may be arranged in a circumferential direction on an outer side of the biaxial motor body 291, and the mounting claws 223 may be evenly distributed on an outer circumference of the biaxial motor body 291 so as to balance a force applied to the seat of the biaxial motor 29. Fasteners include, but are not limited to, bolts, screws, and dowel pins.

In addition, the base 51 may be thickened at the connection position with the fastener, so as to improve the bearing capacity of the base 51. For example, a connection column may be disposed on the base 51, an end of the connection column away from the base 51 may abut against the mounting claw 223, and a fastener may pass through a through hole of the mounting claw 223 and connect to the connection column. The number of connecting posts may be the same as the number of mounting claws 223.

Further, a vibration damping structure may be provided between the upper end of the biaxial motor body 291 and the base 51 in order to reduce the influence of vibration generated by the biaxial motor 29 on the base 51. The vibration reduction structure may include a first vibration reduction sleeve, which may be located between an upper end of the biaxial motor body 291 and a lower end surface of the base 51. The first damping sleeve may be made of an elastic material such as rubber so as to be able to damp vibrations.

Mounting of the first helical gear 23:

as shown in fig. 5, the first bevel gear 23 is rotatably mounted above the base 51, and the first motor shaft 292 may pass through the base 51 to be coaxially connected with the first bevel gear 23. Optionally, a vibration damping structure may be provided between the first bevel gear 23 and the second bevel gear 24 in order to attenuate the effect of vibrations on the first bevel gear 23 on the second bevel gear 24. The damping structure may include a second damping sleeve, which may be fitted over the first helical gear 23 to increase a contact surface between the second damping pad sleeve and the first helical gear 23.

Mounting of the second helical gear 24:

as shown in fig. 5, the second bevel gear 24 may be mounted to a lower end of the water tank 11, wherein, in order to achieve the isolation of the power part 2 from the water in the water tank 11, a mounting recess 114 may be provided on a bottom wall of the water tank 11, the mounting recess 114 having a downwardly facing opening, and the second bevel gear 24 is at least partially mounted in the mounting recess 114. The mounting recess 114 extends inwardly toward the tank 11 and is located within the barrel 12.

Alternatively, in order to simplify the process and/or assembly, a bottom plate 115 may be installed at the bottom end of the water tank 11, and the bottom plate 115 may be provided with an insertion opening coaxial with the installation recess 114. Illustratively, the base plate 115 is detachably attached to the water tank 11, for example, the base plate 115 and the water tank 11 are assembled together by screws.

The second helical gear 24 may be arranged inside the insertion opening in order to achieve a modular mounting. For example, a limit plate may be disposed in the insertion opening, and the limit plate and an area below the limit plate may define an installation space of the second helical gear 24. The second bevel gear 24 is rotatably disposed in the mounting space so as to restrict a movable area of the second bevel gear 24.

Based on the above, the insertion opening is located outside the first bevel gear 23, so that the limiting plate, the insertion opening and the base 51 can limit the moving area of the first bevel gear 23 and the second bevel gear 24, that is, the upper side of the second bevel gear 24 is limited by the limiting plate, and the lower side of the second bevel gear 24 is limited by the first bevel gear 23, so that the longitudinal movement of the second bevel gear 24 is limited, thereby preventing the second bevel gear 24 and the first bevel gear 23 from disengaging, and ensuring the reliability of transmission.

The lower end of the rotating shaft 21 can be screwed to the second helical gear 24, for example, a rivet nut can be coaxially arranged on the second helical gear 24, and the lower end of the rotating shaft 21 is screwed to the rivet nut, so that the rotating shaft 21 can be conveniently installed and the second helical gear 24 can drive the rotating shaft 21 to rotate. Illustratively, the dual-shaft motor 29 rotates the second bevel gear 24, and the second bevel gear 24 rotates in a direction that the second bevel gear 24 and the rotating shaft 21 are mutually screwed, that is, the dual-shaft motor 29 drives the second bevel gear 24 to move in a direction opposite to a direction that the rotating shaft 21 disengages from the rivet nut, so that the rivet nut is rotated by the second bevel gear 24, and the rotating shaft 21 is rotated.

Installation of the rotating shaft 21:

the lower end of the rotating shaft 21 can be connected to the second bevel gear 24, and the rotating shaft 21 can sequentially pass through the insertion opening and the mounting recess 114 from bottom to top and be connected to the upper end of the cylinder 12, that is, the rotating shaft 21 can be rotatably mounted in the insertion opening and the mounting recess 114, and the mounting recess 114 or the insertion opening can radially limit the rotating shaft 21 so as to prevent the rotating shaft 21 from being damaged by bending. Illustratively, a bearing 25 may be disposed in the insertion opening, the rotating shaft 21 may be rotatably disposed inside the insertion opening through the bearing 25, and the bearing 25 may radially support the rotating shaft 21. Alternatively, the restriction plate may divide the insertion opening into a first region and a second region arranged side by side in the up-down direction, the second helical gear 24 may be located in the first region below the restriction plate, and the bearing 25 may be located in the second region above the restriction plate, so that the modular installation is achieved.

Optionally, an oil seal 27 and a gasket 26 may be provided in the second region, and the gasket 26 may be located between the bearing 25 and the oil seal 27. The spacer 26 can isolate the oil seal 27 from the bearing 25 and prevent the rolling bodies of the bearing 25 from slipping out. The oil seal 27 can lubricate the rotary shaft 21.

Optionally, the upper end of the mounting recess 114 may also be provided with a bearing 25 for radially supporting the rotary shaft 21. The upper end of the mounting recess 114 may also be provided with the above-mentioned gasket 26 and oil seal 27. It should be noted that the mounting recess 114 and the bearing 25, the gasket 26 and the oil seal 27 on the insertion port may be symmetrically disposed.

As shown in fig. 5, a coupling member 28 may be provided between the upper end side wall of the rotational shaft 21 and the inner wall of the cylindrical body 12 so as to couple the rotational shaft 21 and the cylindrical body 12 together through the coupling member 28. The connecting member 28 may be disposed above the mounting recess 114 (as shown in fig. 5), the connecting member 28 may include a sleeve 281 and a connecting piece 282, the sleeve 281 may be sleeved outside the first end of the rotating shaft 21, and two sides of the connecting piece 282 are respectively connected to the outside of the sleeve 281 and the inner wall of the barrel 12, so that the connection between the rotating shaft 21 and the barrel 12 may be achieved. To improve the sealing performance, the sleeve 281 may be formed as a single piece with the bottom wall of the water tank 11 by means of integral molding such as injection molding.

The connecting piece 282 may be provided with one or more. When the connection piece 282 is provided in plural, the plural connection pieces 282 may be uniformly distributed in the circumferential direction of the rotation shaft 21 so as to improve the connection strength between the connection member 28 and the cylinder 12, and at the same time, the connection piece 282 may also play a role of supporting the cylinder 12 so as to improve the structural strength of the cylinder 12.

With continued reference to fig. 5, the top end of the shaft 21 may be connected to the upper cover 13 to simultaneously drive the upper cover 13 to rotate. For example, the inner wall of the upper cover 13 may be provided with a mounting block extending downward, the mounting block may also be provided with a rivet nut, and the upper end of the rotating shaft 21 may be screwed to the rivet nut.

The following is a description of how a downdraft water wash air arrangement directs air flow.

First, as shown in fig. 3, the base body 5 includes a second base shell 54 and a base 51, the second base shell 54 may be disposed in a cylindrical shape, and both ends of the second base shell 54 may be disposed in an open shape. The lower end of the base 51 is used for mounting the double-shaft motor 29 and the fan, and the upper end of the base 51 is used for placing the water tank 11. The second base shell 54 may be sleeved outside the base 51, and a predetermined gap may be provided between the second base shell 54 and the base 51, so that the wind coming from below the second base shell 54 enters the water tank 11 from the wind inlet of the water tank 11 through the predetermined gap.

For convenience of description, the width direction of the second base case 54 is indicated in the direction of arrow X, the length direction of the second base case 54 is indicated in the direction of arrow Y, and the height direction of the second base case 54 is indicated in the direction of arrow Z. Illustratively, the water tank 11 may be drawn away from the base 51 along the length of the second base housing 54.

Fig. 7 shows a partial longitudinal perspective cross-sectional view of fig. 2, and as shown in fig. 3 and 7, the second base housing 54 may include, in order from bottom to top, a bearing section 541, a fan mounting section 542, and a base mounting section 543. The carrying section 541 is located at the lowermost part of the entire apparatus, and is used for carrying the weight of the two-shaft motor 29, the fan 32, the water tank 11 and the like in the apparatus; the fan installation section 542 corresponds to the installation position of the fan 32 so as to achieve better air inlet effect; the base mounting section 543 is used for fixing the base 51; and the base mounting segment 543 may also be used to direct gas into the tank 11.

With respect to the bearer segment 541:

as shown in fig. 3 and 7, the bearing section 541 may be disposed in a hollow prism shape, and a reinforcing structure may be disposed on an outer sidewall of the bearing section 541 to improve the bearing capacity of the bearing section 541.

Optionally, an air inlet grille 544 may be disposed on the carrier section 541 to isolate the fan blades 322 and prevent the fan blades 322 from harming people, and to improve the structural strength of the carrier section 541. In addition, the air inlet grille 544 may be provided with a filter screen so that the air may be primarily filtered. The air inlet grille 544 may include a fixing ring 5441 disposed annularly, wherein a first lattice bar 5442 and a second lattice bar 5443 disposed along two directions may be disposed in the fixing ring 5441. First and

second bars

5442 and 5443 may be arranged in an intersecting arrangement to form a mesh for distributing gas.

It is noted that the fixing ring 5441 is detachably connected to the carrying section 541. The fixing ring 5441 can be disposed in the carrying section 541 along a length direction of the carrying section 541, so that when the fixing ring 5441 is detached or mounted, the fixing ring 5441 can move along the length direction of the carrying section 541 so as to be detached from or disposed in the carrying section 541. In addition, for the sake of uniformity in detachment or attachment, the moving direction of the water tank 11 from the base 51 and the moving direction of the fixing ring 5441 from the base 51 may be set to be uniform.

In summary, the carrier section 541 can be used to not only carry the weight of the entire device, but also provide mounting space for the primary filter assembly. In addition, the side wall of the carrier section 541 may define a first gas inlet passage for gas.

The fan mounting section 542 is described below.

Fig. 8 is an enlarged view of fig. 7 at a, and with continued reference to fig. 7 and 8, the fan mounting section 542 may be sleeved outside the fan, the fan mounting section 542 may include a first section and a second section connected to the first section, the first section of the fan mounting section 542 may be connected to an upper end of the bearing section 541, and from top to bottom, the first section of the fan mounting section 542 is gradually bent toward an inner side of the fan mounting section 542. In addition, the second section of the fan installation section 542 can be cylindrical, and the section radius of the second section of the fan installation section 542 is smaller than that of the bearing section 541, so that when gas passes through the fan, the second section of the fan installation section 542 is more attached to the fan due to the change of the section, so that the gas is concentrated to the fan, and the fan guides the gas. In addition, the first section of the fan installation section 542 may serve as a second section joining the carrier section 541 and the fan installation section 542 so that the gas is guided toward the middle.

Alternatively, as shown in fig. 3 and 7, a stabilizing plate 5421 may be connected to the outer side of the fan installation section 542, and the stabilizing plate 5421 may span the first section and the second section of the fan installation section 542, so as to improve the load-bearing capacity of the fan installation section 542.

Alternatively, as shown in fig. 3, a fixing plate 545 may be connected to the fan mounting section 542, and the fixing plate 545 may extend outward from a sidewall of the fan mounting section 542. Wherein the fixing plate 545 and other components may be coupled by fasteners so that the fan installation section 542 and other components are coupled. Wherein, the edge of the fixing plate 545, the radial direction and the periphery of the holes and grooves thereon can be provided with a reinforcing structure to improve the bearing capacity of the fixing plate 545.

In summary, the fan mounting section 542 is configured to gradually and collectively direct air toward the fan location to improve fan efficiency. In addition, the side wall of the fan installation section 542 may define a second air intake passage 34, and the second air intake passage 34 communicates with the first air intake passage 33.

The mounting section of the base 51 will be described below.

As shown in fig. 7, the base mounting section 543 may be disposed in a cylindrical shape, the base mounting section 543 may be located outside the base 51, a fixing plate 5431 may be disposed in the base mounting section 543, and two sides of the fixing plate 5431 may be connected to the sidewall of the base 51 and the base mounting section 543, respectively, so as to implement the mounting of the base 51 and the base mounting section 543. The fixing piece 5431 may be provided with one or more. The plurality of fixing portions may be uniformly distributed in the circumferential direction of the base 51 so as to improve stability when the base 51 is coupled with the base mounting section 543 and to uniformly distribute gas.

Alternatively, as shown in fig. 7, the base mounting section 543 has a larger cross-sectional radius than the fan mounting section 542 in order to increase the flow passage of the gas. Illustratively, a lower end of the base mounting section 543 may be provided with an extension plate 5432, and the extension plate 5432 may extend from the base mounting section 543 toward the second section of the fan mounting section 542 and be connected to an upper end of the second section of the fan mounting section 542. A predetermined distance is provided between the extension plate 5432 and the sidewall of the base 51 to allow the passage of gas.

In addition, the upper end surface of the above-mentioned stabilizing plate 5421 may be connected to the extension plate 5432 so as to improve the connection strength between the base mounting section 543 and the fan mounting section 542. In addition, the lower end of the fixing piece 5431 may be connected to the upper end surface of the extension plate 5432, and the extension plate 5432 may support the fixing piece 5431 so as to improve the structural strength of the fixing piece 5431.

Alternatively, as shown in fig. 8, a wind guide projection 5422 may be connected to the second section of the fan installation section 542, and the wind guide projection 5422 may extend upward to guide the air upward.

In addition, the air inlet 111 of the water tank 11 is disposed on the side wall of the water tank, and an air inlet baffle is disposed between the second base shell 54 and the side wall of the water tank 11, and the air inlet baffle is used for guiding air to the air inlet 111 of the water tank 11. Illustratively, as shown in fig. 7, the upper end of the base mounting segment 543 exceeds the upper end surface of the air inlet 111 of the water tank 11, and a space is provided between the air inlet 111 and the upper end of the water tank 11. The air outlet cover 41 can cover the upper end of the base mounting section 543, and the air outlet cover 41 can close the upper end of the base mounting section 543 (at this time, the air outlet cover 41 is equivalent to an air inlet baffle), so that the air entering the base mounting section 543 can be blocked by the air outlet cover 41 between the second base shell 54 and the water tank 11, so that the air can enter the water tank 11 from the air inlet formed in the side wall of the water tank 11.

It should be noted that, for the connection between the wind outlet cover 41 and the base mounting section 543, reference is made to the following description. The description of the upper end of the outlet hood 41 and the water tank 11 can be referred to the above.

Alternatively, as shown in fig. 3, an air inlet recess 5433 may be formed in the base mounting section 543 near the rear end of the water tank 11, and the air inlet recess 5433 may extend toward the inner side of the base mounting section 543. The provision of the air intake recess 5433 not only reduces the weight of the second base but also has a guiding effect on the gas.

Illustratively, fig. 9 shows a top view of the base body 5, and as shown in fig. 3, 7 and 9, the inner side of the air intake recess 5433 is connected to the side wall of the bottom wall, and the outer side of the air intake recess 5433 is provided with an opening. The air inlet recesses 5433 may be provided in two, and the front ends of the two air inlet recesses 5433 are located at the rear end of the air inlet of the water tank 11 (the water tank 11 includes an arc portion and a vertical portion opposite to the arc portion, and the air inlet is disposed at the arc portion of the water tank 11. the front end of the air inlet recess 5433 may be located at the rear end of the arc portion, that is, the front wall of the air inlet recess 5433 corresponds to the vertical portion of the water tank 11), so as to provide an air inlet space for the gas.

It is understood that the extension plate 5432, the base mounting section 543 between the two air inlet recesses 5433, the side wall of the bottom wall, the side wall of the water tank 11, and the front walls of the two air inlet recesses 5433 may define a third air inlet channel 35 for air, and the third air inlet channel 35 is communicated with the second air inlet channel 34. Therefore, the third air inlet channel 35 should include the corresponding position of the air inlet. Alternatively, the two air intake recesses 5433 may be symmetrically disposed along the axis of the water tank 11 for the balance and symmetry of the base 5. Optionally, a reinforcement plate 5434 may be provided in the intake recess 5433 to improve the strength of the intake recess 5433.

Illustratively, both ends of the reinforcement plate 5434 may be connected to opposite sidewalls of the air intake recess 5433, respectively, and one side of the reinforcement plate 5434 may be connected to a bottom wall of the air intake recess 5433. The reinforcement plate 5434 may be provided in plurality in the axial direction of the second base case 54 in order to further improve the structural strength of the intake recess 5433.

Alternatively, as shown in fig. 2, 3 and 7, the upper end of the base mounting section 543 may be provided with a limiting groove 5435, and at least a portion of the upper end of the water tank 11 is seated on the limiting groove 5435 so as to limit the position of the upper end of the water tank 11.

As will be described below.

In summary, one flow condition of the air in the second base housing 54 is that the external air enters the inside of the second base housing 54 under the action of the fan 32. After passing through the first air channel surrounded by the side wall of the carrier section 541, the air is uniformly distributed by the air inlet grille 544 thereon and filtered by the filter screen on the air inlet grille 544, and enters the second air channel formed by the side walls of the fan 32 and the fan mounting section 542. The gas from the second gas channel enters the third gas channel surrounded by the sidewall of the base mounting section 543 and the sidewall of the base 51, and then enters the fourth gas channel surrounded by the sidewall of the base mounting section 543, the sidewall of the water tank 11 and the sidewall after being uniformly distributed by the fixing pieces 5431. Air can enter the inside of the water tank 11 from the air inlet of the water tank 11 through the fourth air inlet channel. In this manner, the flow of gas through the second base shell 54 is completed.

The air outlet part of the lower air inlet mode is described as follows:

alternatively, as shown in fig. 7, the upper end of the water tank 11 may be provided with an air outlet cover 41, and the air outlet cover 41 may cover the upper end of the base mounting section 543. The air outlet cover 41 can cover the upper end openings of the water tank 11 and the base mounting section 543. The outlet housing 41 may include a first guide shell 435 and a second guide shell 436 communicated with a sidewall of the first guide shell 435, wherein the first guide shell 435 is sleeved on an upper end of the water tank 11 and is hermetically connected with a sidewall of an upper end of the water tank 11. Illustratively, a seal, including but not limited to a sealing gasket, is provided between the first guide housing 435 and the upper end of the tank 11.

Alternatively, the second guide shell 436 extends from the first guide shell 435 toward the outside of the hood 41, and the second guide shell 436 has an opening toward the outside of the hood 41, which is an air outlet of the hood 41. Further, a mounting projection may be connected to the second guide shell 436 in an annular shape, and the mounting projection may extend downward. The upper end of the base mounting segment 543 can be embedded in the mounting protrusion. The base mounting section 543 and the mounting protrusion are hermetically connected so as to block the exposure of gas.

Alternatively, the upper wall of the second guide shell 436 is gradually inclined upward from the axis of the first guide shell 435 to the outer circumference of the first guide shell 435, so as to increase the air outlet area of the second guide shell 436.

Alternatively, as shown in fig. 7, the air outlets of the air-out housing 41 may include two first air outlets and two second air outlets, and the two first air outlets may be symmetrically disposed with respect to the axis of the air-out housing. Two second air outlet holes can be arranged between the two first air outlet holes, and the two second air outlet holes can be symmetrically arranged relative to the axis of the air outlet cover, so that purified air is guided to the left side, the right side and the rear side (or the front side) in the drawing.

Claims

1. an air purifying device for air intake from below, comprising water tank, water curtain assembly, is characterized in that, also comprises:

a base for supporting the water tank;

A biaxial motor is mounted on the base, the biaxial motor includes a biaxial motor body, a first motor shaft and a second motor shaft, the first motor shaft extends upward from the biaxial motor body and is connected to the In the water curtain assembly, the second motor shaft extends downward from the main body of the biaxial motor;

a fan, connected to the second motor shaft;

A base shell is sleeved on the outer side of the base and used to support the base, the base shell has an air inlet set downward, and at least part of the base shell and the base are provided with an inlet for gas to pass through. air channel;

The water tank has an air inlet and an air outlet, and the air inlet of the water tank is communicated with the air inlet channel.

2 . The air purifying device with air intake from below according to claim 1 , wherein the fan comprises a fan casing and a fan blade connected to the side wall of the fan casing, at least part of the fan casing. 3 . The shell is sleeved on the lower end of the main body of the biaxial motor.

3 . The air purifying device for air intake from below according to claim 2 , wherein a limiting ring is sleeved on the second motor shaft, and the limiting ring abuts against the fan casing. 4 . , the second motor shaft is penetrated through the fan casing and is threadedly connected with a nut.

4 . The air purifying device for air intake from below according to claim 3 , wherein a reinforcing block is provided on the fan housing, and the reinforcing block comprises a first end and a second end, and the reinforcing block is 4 . The first end of the nut abuts against the lower end of the limiting ring, and the second end of the reinforcing block passes through the fan housing and abuts on the upper end of the nut.

5 . The air purifying device with air intake from below according to claim 1 , wherein the main body of the biaxial motor is suspended and mounted on the base. 6 .

6 . The air purifying device for air intake from below according to claim 1 , wherein the bottom end of the base shell is provided with an air intake grille, and the air intake grille is used for entering the air into the air purifier. 7 . The gas of the channel is divided into several zones.

7 . The air purifying device with air intake from below according to claim 6 , wherein a filter screen is provided on the air inlet grille, and the filter screen is used for adsorbing and filtering the gas entering the air inlet channel. 8 . .

8 . The air purifying device with air intake from below according to claim 1 , wherein the base shell comprises a fan installation section, and the fan installation section is sleeved on the outer side of the fan, from bottom to top, 9 . At least a portion of the fan mounting section is gradually curved toward the fan.

9 . The air purifying device with air intake from below according to claim 8 , wherein a base mounting section is provided above the fan mounting section, and the base mounting section is sleeved on the outer side of at least part of the water tank. 10 . The fan installation section is connected with an extension plate extending toward the outside of the base shell, and the base installation section is connected to an end of the extension plate away from the fan installation section.

10 . The air purifying device with air intake from below according to claim 1 , wherein the inner wall of the base shell is provided with a fixing piece, and the fixing piece is arranged along the radial direction of the base shell and is used for uniformity. 11 . Divide the gas in the air inlet channel.