Air hood and air purification device

Abstract

The present invention belongs to the technical field of air purification, and specifically relates to an air outlet hood and an air purification device, wherein an air outlet hood is used to install a fan, the fan includes an impeller and a motor, an air outlet is arranged on the air outlet hood, and the air outlet hood includes: a lower cover body, provided with a central hole arranged through, at least part of the fan is located in the central hole, and there is a preset gap between the fan and the lower cover body; an upper cover body, opposite to the lower cover body and used to cover the central hole, the motor is suspended and installed on the upper cover body; a connecting gasket is located between the upper cover body and the motor and is used for vibration reduction. The motor of the fan is suspended and installed on the upper cover body, so as to reduce the contact between the fan and the lower cover body, thereby reducing the vibration between the lower cover body and the water tank.

Description

Technical Field

[0001] The invention belongs to the technical field of purification electrical appliances, and in particular relates to an air outlet hood and an air purification device. Background Art

[0002] The problem of air pollution has attracted more and more attention, so various air purifiers have emerged. Air purifiers are products that can absorb, decompose or transform various air pollutants and effectively improve the cleanliness of the air.

[0003] At present, the air purifiers used in homes all use dry multi-layer filtration and adsorption methods (such as electrostatic adsorption, activated carbon adsorption, HEPA filtration, etc.) to purify the air. When this type of air purifier is working, pollutants will directly accumulate on the filter screen of the filtration device. If accumulated for a long time, the pores on the filter screen will be blocked, affecting the air filtration effect, and the dust accumulated on the filter screen will become a breeding ground for bacteria and form secondary pollution. Therefore, water-washed air purification products came into being.

[0004] The existing water-washing air purification device includes a water tank, a water-washing assembly and a fan. The water-washing assembly is rotatably arranged in the water tank to form a water curtain. An air inlet is provided on the side wall of the water tank. The dust-containing gas from the outside enters the water tank from the air inlet under the action of the fan and is fully contacted with the water curtain to be purified. Among them, the fan generates vibration when working, resulting in the generation of large noise, which affects the use of users. Summary of the invention

[0005] In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that the fan of the existing water-washing air purification device generates vibration during operation, resulting in the generation of large noise and affecting the user's use, the present invention provides an air outlet hood and an air purification device, wherein an air outlet hood is used to install a fan, the fan includes an impeller and a motor, the air outlet hood has an air outlet, and the air outlet hood includes: a lower cover body, provided with a central hole that is set through, at least part of the fan is located in the central hole, and a preset gap is provided between the fan and the lower cover body; an upper cover body, opposite to the lower cover body and used to cover the central hole, the motor is suspended and installed on the upper cover body; a connecting gasket is located between the upper cover body and the motor and is used for vibration reduction.

[0006] In the preferred technical solution of the above-mentioned air outlet hood, a through hole is provided on the upper hood body, and an elastically arranged reinforcing column is connected to the connecting gasket. The reinforcing column passes through the through hole and abuts against the upper hood body, and a fastener passes through the reinforcing column, and the connecting gasket is connected to the motor.

[0007] In the preferred technical solution of the above-mentioned air outlet hood, a positioning groove is provided at the upper end of the upper hood body, a positioning flange is connected to the connecting gasket, the positioning flange extends toward the upper hood body and extends into the positioning groove, and the outer side wall of the positioning flange abuts against the groove wall of the positioning groove.

[0008] In the preferred technical solution of the above-mentioned air outlet cover, a reinforcing protrusion and a radial protrusion are connected to the upper cover body, the reinforcing protrusion is arranged in a ring shape, the radial protrusion is arranged along the radial direction of the upper cover body, and the reinforcing protrusion intersects with the radial protrusion.

[0009] In the preferred technical solution of the above-mentioned air outlet hood, a capacitor starter may be provided on the upper cover body, and the capacitor starter is used to help start the fan; the upper cover body is connected to a placement protrusion extending in a direction away from the fan, and at least two placement protrusions are provided, and the multiple placement protrusions and the upper cover body define a placement cavity, and the placement cavity is used to limit the position of the capacitor starter.

[0010] In the preferred technical solution of the above-mentioned air outlet cover, at least two of the placement protrusions that are arranged opposite to each other are elastically arranged, and the capacitor starter is interference-fitted in the placement cavity.

[0011] In the preferred technical solution of the above-mentioned air outlet hood, the upper hood body includes an upper hood plate on which a fan is suspended, the upper end of the lower hood body can be connected to a lower hood plate, the lower hood plate extends toward the outside of the lower hood body, at least part of the upper hood plate abuts against the lower hood plate, and fasteners pass through the upper hood plate and are connected to the lower hood plate.

[0012] In the preferred technical solution of the above-mentioned air outlet hood, the upper hood body is provided with paired wire fixing protrusions, the wire fixing protrusions are connected to the upper hood body and extend in a direction away from the fan, and the power supply and / or communication cables are clamped between the paired wire fixing protrusions.

[0013] An air purification device comprises a water tank and a fan, and also comprises the air outlet cover as described above, wherein the top of the water tank is arranged to be open, and the air outlet cover is used to cover the top opening of the water tank.

[0014] In the preferred technical solution of the above-mentioned air purification device, the lower cover body is sleeved on the top outer wall of the water tank, and a vibration-damping pad is provided between the top outer wall of the water tank and the inner wall of the lower cover body.

[0015] It is understood by those skilled in the art that the air outlet cover and the air purification device of the present invention reduce the contact between the fan and the lower cover by suspending the fan motor on the upper cover, thereby reducing the vibration between the lower cover and the water tank. In addition, by providing a connecting gasket to reduce the vibration between the fan and the upper cover, it is beneficial to reduce the vibration of the entire device and further reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional schematic diagram of an air purification device is shown;

[0017] Figure 2 A three-dimensional schematic diagram of a water washing unit is shown;

[0018] Figure 3 Show Figure 2 A magnified view at point A;

[0019] Figure 4 A schematic diagram showing a water washing assembly for forming a water curtain;

[0020] Figure 5 A cross-sectional view showing a cylinder and a power unit;

[0021] Figure 6 A three-dimensional schematic diagram of a substrate is shown;

[0022] Figure 7 A three-dimensional schematic diagram of a primary filter assembly is shown;

[0023] Figure 8 A top view of a water tank and a bottom plate is shown;

[0024] Fig. 9 A three-dimensional schematic diagram of a base and a water tank is shown;

[0025] Fig.10 A top view of an air purification device is shown;

[0026] Fig.11 Show Fig.10 Partial stereoscopic cutaway view at MM;

[0027] Fig.12 A schematic diagram showing the connection position of a portion of the water tank and the lower cover;

[0028] Fig.13 Show Figure 1 A transverse cross-sectional view at a middle position of the first air outlet;

[0029] Fig.14 Show Fig.10 Partial cross-sectional view at NN;

[0030] Fig.15A three-dimensional schematic diagram showing a portion of the upper cover body;

[0031] Fig.16 Show Fig.11 In the enlarged view of F. DETAILED DESCRIPTION

[0032] Figure 1 A three-dimensional schematic diagram of an air purification device is shown, referring to Figure 1 As shown, the air purification device of the present invention may include an air inlet 3, a water washing section 1 and an air outlet 4 according to the flow direction of the wind. The water washing section 1 includes a water tank 11 and a water washing assembly arranged in the water tank 11. The water washing assembly forms a water curtain with the water in the water tank 11 under the power provided by the power section 2. After the dust-containing gas enters the water washing section 1 from the air inlet 3, it can pass through the water curtain formed by the water washing assembly, so that the dust, bacteria, viruses, etc. in the dust-containing gas are dissolved in water or removed by water molecules and negative ions in the water curtain, thereby completing the water washing purification of the dust-containing gas. The clean gas after water washing and purification by the water washing section 1 is discharged from the air outlet 4 to improve the surrounding air quality.

[0033] exist Figure 1 In the embodiment, the air purification device is further provided with a base 5 for carrying the water tank 11, and the air inlet 3 and the power unit 2 can be arranged on the base 5 so as to realize modular and integrated arrangement. In other words, the air inlet 3 can be formed into an integral part with the base 5 by molding, for example, the side wall or bottom wall of the integral part serves as the air inlet 3, and the bottom wall of the integral part is used for installing the power unit 2 and for supporting the water tank 11.

[0034] The water tank 11 has an air inlet connected to the air inlet portion 3 and an air outlet connected to the air outlet portion 4. Exemplarily, the air outlet portion 4 may include an air outlet cover 41, which may be disposed on the air outlet of the water tank 11. The purified gas enters the air outlet cover 41 from the air outlet of the water tank 11, so that the purified gas can be guided to any desired direction through the air outlet cover 41. For example, Figure 1 The figure shows that the purified air discharged from the air outlet of the water tank 11 is led to the Figure 1 The left, right and back sides of the .

[0035] The following is a detailed description of each part of the air purification device.

[0036] First, the water tank 11 will be described below.

[0037] Figure 2 A three-dimensional schematic diagram of a water washing unit is shown; Figure 2As shown, the water tank 11 can be made of a transparent material, for example, a transparent plastic made by molding. The water tank 11 can contain a washing liquid for washing air, and the washing liquid can be clean water, but is not limited to clean water, for example, it can also be water mixed with a disinfectant. In order to simplify the description, the following description takes water as an example, but this should not be regarded as a specific limitation on the scope of protection.

[0038] like Figure 2 As shown, the upper part of the water tank 11 is used for gas flow, and the lower part of the water tank 11 is used for holding water. The air inlet 111 of the water tank 11 can be set on the upper side wall of the water tank 11, and a primary filter assembly can be set outside the air inlet 111 as described below.

[0039] Continue as Figure 2 As shown, the top of the water tank 11 may be opened to serve as an air outlet, and the gas entering the water tank 11 may flow out from the top opening of the water tank 11. An upper water retaining structure 15 may be provided at the air outlet as described below.

[0040] It should be noted that the positions of the air inlet 111 and the air outlet may also be set to be different from Figure 2 As shown. For example, the positions of the air inlet 111 and the air outlet can be swapped, or in some examples, the air inlet 111 and the air outlet can be set on opposite side walls of the water tank 11. The following takes the air inlet 111 set on the side wall of the water tank as an example to describe the air purification device of this solution. For other settings of the air outlet, those skilled in the art can refer to the following and will not be repeated here.

[0041] Continue to refer Figure 2 The number of air inlets 111 can be multiple, or only one can be provided, and the shape and size of each air inlet 111 can be set according to actual needs. Figure 2 As shown, when there are multiple air inlets 111, these air inlets 111 can be evenly distributed along the circumference of the side wall of the water tank 11 to evenly distribute the gas so that the gas entering the water tank 11 is evenly distributed.

[0042] It is worth noting that when the air inlet is set 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 where the water curtain formed by the water washing component is located, so that the dusty air entering the water tank 11 from the air inlet can only flow out from the air outlet of the water tank 11 after being cleaned by the water curtain. It should be pointed out that since water will be affected by gravity, the plane where the water curtain is located here is a general reference. In principle, the upper end surface of the air inlet should be located below the intersection of the water curtain and the side wall.

[0043] As can be seen from the above, the lower part of the water tank 11 is used to hold water, so the lower side wall of the water tank can be provided with scale lines so that the user can observe and control the liquid level of the water tank 11. It is easy to understand that the water tank 11 can also be made of transparent material only in the part where the scale lines are set, and the rest of the part is made of non-transparent material, so that the user can observe the water level in the water tank 11 through the scale lines of the transparent part. Figure 2 As shown, the scale lines may include a minimum liquid level line, which may be indicated by "0", and may also include a maximum liquid level line, which may be indicated by "max". It is understandable that the scale line marked with "max" is located below the air inlet.

[0044] In order to more quickly understand the content of the invention of this solution, the water washing component is described below. The structure of the water washing component includes but is not limited to the following possible implementation methods:

[0045] In one possible implementation, Figure 4 A schematic diagram of a water washing assembly for forming a water curtain is shown, such as Figure 4 As shown, the water washing assembly can lift the water stored in the water tank 11 upwards and spray the water toward the inner wall of the water tank 11. Specifically, the water washing assembly can include a hollow cylinder 12, and the lower end of the cylinder 12 is connected to the lower end of the water tank 11. Exemplarily, the lower end of the cylinder 12 is open. There is a gap between the lower end opening of the cylinder 12 and the bottom wall of the water tank 11, so that the water in the water tank 11 enters the interior of the cylinder 12 from the gap. The power unit 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 under the action of the rotational force. A plurality of water-spinning holes 121 are provided along the circumference of the side wall near the top of the cylinder 12. These water-spinning holes 121 are higher than the highest liquid level of the washing liquid contained in the water tank 11, so that the water lifted from the inner wall of the cylinder 12 is thrown out from the water-spinning holes 121, and moves away from the cylinder 12 at a certain initial velocity (the initial velocity is the linear velocity of the position of the water-spinning holes 121) and gradually approaches the inner wall of the water tank 11, thereby forming a water curtain to clean the gas entering from the air inlet. It should be pointed out that the plurality of water-spinning holes 121 can be arranged in a circle uniformly or non-uniformly along the circumference of the cylinder 12, and in some examples, multiple circles of water-spinning holes 121 can also be provided along the axis of the cylinder 12 to improve the effect of water washing and purification.

[0046] In another possible implementation, the water washing assembly includes a water pipe, which may include a first end and a second end. The first end of the water pipe may extend into the water stored in the water tank so as to absorb the water at the lower end of the water tank; the second end of the water pipe may extend to the upper end of the water tank. A water pump may be provided on the water pipe, and the water pump may flow the water in the water tank from the first end to the second end. The water washing assembly also includes a rotatable disc-shaped component, and the water flowing down from the second end of the water pipe may be thrown out under the action of centrifugal force after falling on the rotating disc-shaped component, thereby forming a water curtain.

[0047] In another possible implementation, a hollow rotating body can be used to replace the rotatable disc-shaped component, the upper end of the rotating body can be opened, and a plurality of through holes are provided on the side wall of the rotating body. Water flowing out of the second end of the water pipe can enter the interior of the rotating body from the upper end opening of the rotating body, and be thrown out from the through holes along the tangent direction of the rotating body, thereby forming a water curtain.

[0048] In some other possible implementations, a rotating water curtain, a water pipe with multiple water outlets along the length direction, two relatively arranged nozzle structures, an atomizer, etc. can be used to form a water curtain, water curtain, water mist, etc. in the water tank, so that the air entering the water tank can be washed and purified by water.

[0049] In summary, there are many types of water washing components for forming a water curtain with water in the water tank 11. The following describes the solution of the present application by taking the water washing component including a cylinder 12 and the power unit 2 driving the cylinder 12 to rotate as an example. Other water washing component structures can be obtained by referring to the present application and will not be described in detail here.

[0050] Continue to refer Figure 4 The side wall of the cylinder 12 can be gradually inclined from top to bottom toward the axial direction away from the cylinder 12, that is, the cylinder 12 is configured to be roughly conical, with the small diameter end of the cone located at the bottom and the large diameter end of the cone located at the top, so as to facilitate water to climb up along the inner wall of the cylinder 12.

[0051] Continue to refer Figure 4 The cylinder 12 can be divided into an upper section 122 and a lower section 123 connected to the lower end of the upper section 122, and the water-spinning hole 121 can be provided in the upper section 122. The upper and lower sections can be made into an integral part by an integral molding method such as injection molding, so as to facilitate the structural stability of the cylinder 12. Of course, the upper and lower sections of the cylinder 12 can also be separate parts, and the two are assembled together by screwing, rotating or welding, and the lower end of the upper section 122 and the upper end of the lower section 123 can be mutually sleeved together, for example, the upper end of the lower section 123 can extend into the lower end of the upper section 122, so as to enhance the sealing between the upper section 122 and the lower section 123.

[0052] It should be noted that when the caliber of the lower end of the upper section 122 is larger than the caliber of the upper end of the lower section 123, a step portion can be used to connect the upper section 122 and the lower section 123. By forming a step portion between the upper and lower sections, a temporary storage area can be provided for water to climb on the inner wall of the cylinder 12, which is conducive to increasing the amount of water thrown out from the water-throwing hole 121.

[0053] Optionally, Figure 5 A cross-sectional view of a cylinder and a power unit is shown to illustrate the connection between the upper section 122 and the lower section 123. The upper section 122 may include an upper cylinder and an inner flange. The inner flange may include a radial section and an axial section. The radial section may abut against the upper end surface of the outer flange mentioned below, and the axial section may be bent downward relative to the radial section.

[0054] The lower section 123 can be embedded in the flange. Exemplarily, the lower section 123 may include a lower cylinder and an outer flange, and the outer flange may be sleeved on the outer side of the upper end of the lower cylinder, and one end of the outer flange may be higher than the upper end of the lower cylinder. The axial section of the inner flange abuts against the top of the lower cylinder, and the radial section of the inner flange abuts against the outer flange, so that the side of the axial section away from the radial section can be located on the same curved surface as the lower cylinder. This provides a smooth climbing curved surface for the droplets. In addition, the outer flange and the inner flange cooperate with each other and block the gap from each other, which can facilitate improving the sealing between the upper section 122 and the lower section 123. Outer flange of lower cylinder Outer flange Outer flange of lower cylinder Outer flange of lower cylinder Outer flange of lower cylinder Lower cylinder Upper cylinder Inner flange Inner flange Radial section Axial section Radial section Outer flange Axial section Axial section Radial section Outer flange of lower cylinder Inner flange

[0055] It is worth noting that, in order to achieve the sealing between the upper section 122 and the lower section 123, a sealing member may be provided between the lower section 123 and the upper section 122. The sealing member includes but is not limited to a sealing ring, a sealing gasket, and the like.

[0056] Optionally, the angle between the side wall of the lower section 123 and the axis of the cylinder 12 may be greater than the angle between the side wall of the upper section 122 and the side wall of the cylinder 12. Water rises rapidly in the lower section 123, and the water in the upper section 122 can be easily separated from the supporting force or adhesion of the inner wall of the upper section 122, and is more convenient to be thrown out from the water-throwing hole 121. In addition, the change in the inclination angle of the upper section 122 can also be considered from the opening size of the air inlet. It can be understood that the direction of the initial velocity of the water thrown out from the water-throwing hole 121 leaving the upper section 122 may be related to the cross section of the upper section 122, and the direction of the initial velocity affects the motion trajectory of the thrown water, and then affects the contact area between the thrown water and the gas. By reasonably setting the position of the water-throwing hole 121 on the cylinder 12, the rotation speed of the cylinder 12, and one or more of the cross-section of the cylinder 12 where the water-throwing hole 121 is located, the quality of the water curtain formed by the water washing component can be improved, thereby improving the air purification effect.

[0057] like Figure 5 As shown, the upper end of the cylinder 12 may be open, 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 as the cylinder 12 rotates, the water may be blocked by the upper end surface and fall down, so that at least part of the water blocked by the upper end surface flows out from the water-throwing hole 121, so as to increase the water output of the water-throwing hole 121.

[0058] Optionally, 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 cylinder 12, and the side wall of the upper cover 13 may be sleeved on the outer side of the cylinder 12. The lower end surface of the side wall of the upper cover 13 is located above the water-spinning hole 121 so as to block at least part of the water that has a tendency to move upward. It can be understood that the initial velocity of at least part of the water thrown out of the water-spinning hole 121 has a tendency to move upward, and the movement trajectory of this part of the water may be above the moving range of the gas, and this part of the water may not come into contact with the gas. By appropriately arranging a flange extending away from the cylinder 12 on the side wall of the upper cover 13, the ability to intercept the water thrown out of the water-spinning hole 121 and moving toward the top of the water tank 11 can be improved. The intercepted water can fall onto the outer wall of the upper section 122 below the side wall of the upper cover 13, and can be thrown toward the inner wall of the water tank 11 under the action of centrifugal force as the upper section 122 rotates to form a water curtain, thereby improving the air purification effect.

[0059] Alternatively, the cylinder 12 and the upper cover 13 can be formed into an integral part by an integral molding method such as injection molding. In this case, an upper water retaining protrusion can be provided above the water-shedding hole 121, and the upper water retaining protrusion extends from the outer wall of the cylinder 12 in a direction away from the cylinder 12, so as to block at least part of the water having a tendency to move toward the top of the water tank 11.

[0060] Alternatively, the upper end of the cylinder 12 is open. The water-spinning hole 121 of the cylinder 12 is served by the opening at the top thereof, and the water-spinning hole 121 may or may not be provided on the side wall thereof. When the cylinder 12 is driven to rotate, the water sucked into the cylinder 12 rises along the side wall thereof, and all or part of the rising water may be thrown out from the top opening of the cylinder 12 to form a water curtain.

[0061] Alternatively, if Figure 4 and Figure 5As shown, a lower water retaining protrusion 14 can also be provided below the water-shedding hole 121 , and the lower water retaining protrusion 14 extends from the outer wall of the cylinder 12 in a direction away from the cylinder 12 so as to block the water sprayed from the water-shedding hole 121 and moving toward the bottom of the water tank 11 . It can be understood that the initial velocity of at least part of the water thrown out from the water-throwing hole 121 has a tendency to move toward the bottom of the water tank 11. On the one hand, the movement trajectory of this part of the water may be outside the movement range of the gas entering the water tank 11 from the air inlet, and this part of the water may not come into contact with the gas. By setting the lower water retaining protrusion 14, a part of the water moving toward the bottom of the water tank 11 can be intercepted. The intercepted water can accumulate above the lower water retaining protrusion 14 and be thrown out under the action of centrifugal force as the cylinder 12 rotates to form a water curtain, which is beneficial to improve the air purification effect; on the other hand, this part of the water is easy to fall from the air inlet of the side wall of the water tank 11 to the outside of the water tank 11. By setting the lower water retaining protrusion 14, water can be prevented from splashing out of the water tank 11 from the air inlet to a certain extent.

[0062] like Figure 2 As shown, an upper water retaining structure 15 for shielding the air outlet of the water tank 11 is provided at the air outlet of the water tank 11. The upper water retaining structure 15 can block the water thrown out from the water throwing hole 121, so that it will not splash out of the air outlet of the water tank 11 to the outside of the water tank 11. It should be pointed out that the water blocked by the upper water retaining structure 15 may include water thrown out directly from the water throwing hole 121, and may also include water carried by the gas passing through the water curtain.

[0063] For example, Figure 3 yes Figure 2 The enlarged view at A is as follows: Figure 3 As shown, the upper water retaining structure 15 includes a water absorbing member 151. The water absorbing member 151 can be made of a material that can block water droplets from passing through but allow gas to pass through, such as a porous polymer material in the prior art. In some examples, the water absorbing member 151 needs to be made of a unidirectional water-blocking material, such as a reticulated polyurethane foam plastic, a sponge, etc.

[0064] In addition, in order to facilitate the installation and support of the water absorbing member 151 and to prevent the water absorbing member 151 from excessively falling after absorbing water, the upper water retaining structure 15 may also include a support frame, which may be provided in a hollow columnar shape, and the water absorbing member 151 may be installed inside the support frame. The support frame may be installed on the top of the water tank 11 by a suitable method such as screw connection or snap connection. For example, a placement groove 112 may be provided on the top of the water tank 11, and the support frame may be embedded in the placement groove 112. Exemplarily, the bottom wall of the placement groove 112 may be used to support the bottom wall of the support frame, and the side wall of the support frame may be interference fit with the side wall of the placement groove 112 so as to limit the displacement of the support frame from the circumferential direction.

[0065] The support frame can also be configured as a mesh structure, and the mesh structure support frame can be installed on the top of the water tank 11 in the same manner as the hollow columnar support frame described above. By configuring the support frame as a mesh structure, not only can the support force of the support frame on the water absorbent 151 be improved, but also the passage of the purified gas will not be affected. Optionally, the mesh of the mesh structure can be hexagonal to improve the stability of the support frame.

[0066] Optionally, the support frame may include a support section 152 and a cover section 153. The support section 152 may include a bottom wall and a side wall. The side wall of the support section 152 may be connected to the outer periphery of the bottom wall of the support section 152 and extend upward. The cover section 153 may include a top wall and a side wall. The side wall of the cover section 153 may be connected to the outer periphery of the top wall of the cover section 153 and extend downward. The side wall of the support section 152 may be sleeved on the outer side of the side wall of the cover section 153. The water absorbent member 151 may be located in a receiving space enclosed by the bottom wall of the supporting section 152, the side walls of the covering section 153 and the top wall of the covering section 153, so that the lower part of the water absorbent member 151 is supported by the supporting section 152, the upper end of the water absorbent member 151 is covered by the covering section 153 so as to limit the upper part of the water absorbent member 151, and the circumference of the water absorbent member 151 is limited by the side walls of the covering section 153 and the side walls of the supporting section 152 so as to maintain the structural shape of the water absorbent member 151 and facilitate the installation of the water absorbent member 151.

[0067] In addition, the support section 152 and / or the cover section 153 may have a certain elasticity to improve the sealing performance between the side wall of the support section 152 and the side wall of the cover section 153, so as to prevent water from splashing out of the water tank 11 from the side wall of the support section 152 and the side wall of the cover section 153. In addition, the sealing performance can be improved by providing a sealing member between the two, or it can also be achieved by an interference fit between the cover section 153 and the support section 152.

[0068] Continue to refer Figure 3 When the covering section 153 and the supporting section 152 are interference fit, the outer periphery of the top wall of the covering section 153 may be provided with a mounting groove, and the upper end of the side wall of the supporting section 152 may be connected with a mounting protrusion, and the mounting protrusion may be matched and connected to the mounting groove. Exemplarily, the mounting protrusion may face the axial direction of the supporting section 152, and the lower end surface of the mounting protrusion may be installed against the bottom wall of the mounting groove to block the movement of the upper end of the covering section 153. Optionally, the number of the mounting grooves may be one or more, and the plurality of mounting grooves may be evenly distributed on the outer periphery of the covering section 153.

[0069] Next, the power unit 2 is described.

[0070] The following is Figure 5The structure shown in FIG. 1 is used as an example to explain the power unit 2 and the matching method with the cylinder 12. That is, the following will take the upper cover 13 provided on the upper part and the side wall of the upper cover 13 sleeved on the outer side of the cylinder 12 as an example to explain the situation where the power unit 2 drives the cylinder 12 to rotate. However, it should be understood that the structure of the cylinder 12 is not limited to Figure 5 The structural form may also be other structures mentioned above.

[0071] like Figure 5 As shown, the power unit 2 may include a rotating shaft 21, a reducer and a motor 22, the motor 22 may be electrically connected to an external power supply, and the motor 22 has a motor shaft 221. The base 5 may include a base 51, and the reducer may include a first bevel gear 23 rotatably arranged on the base 51, and 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 meshed with each other, and the second bevel gear 24 may be located above the first bevel gear 23. It can be understood that the structural form of the reducer may include but is not limited to the above structure. By adopting a detachable matching mode such as the first bevel gear 23 and the second bevel gear 24, the disassembly of the water tank 11 and the base 51 can be facilitated, thereby facilitating the cleaning and / or watering of the water tank 11. Specifically, when it is necessary to separate the water tank 11 from the base 51, it is only necessary to separate the first bevel gear 23 and the second bevel gear 24.

[0072] In addition, the motor shaft 221 can be coaxially connected to the first bevel gear 23. The rotating shaft 21 includes a first end and a second end. The first end of the rotating shaft 21 can be coaxially connected to the second bevel gear 24, and the second end of the rotating shaft 21 can be connected to the cylinder 12. Referring to the figure, it can be seen that the first end of the rotating shaft 21 can be the lower end of the rotating shaft 21, and the second end of the rotating shaft 21 can be the upper end of the rotating shaft 21. It can be understood that after the motor 22 is powered on and started, the motor shaft 221 of the motor 22 can drive the first bevel gear 23 to rotate, and the first bevel gear 23 can drive the second bevel gear 24 to rotate, thereby driving the rotating shaft 21 connected to the second bevel gear 24 to rotate, so that the cylinder 12 connected to the rotating shaft 21 rotates, and the cylinder 12 can achieve the functions of absorbing water, lifting water and spraying water from the water tank 11.

[0073] The installation of the power unit 2 is introduced below from bottom to top.

[0074] Installation of motor 22:

[0075] like Figure 5The motor 22 may include a motor body 222 and a motor shaft 221, and the motor body 222 may be suspended and mounted on the base 51 to reduce the impact of the vibration of the motor 22 on the parts below it. For example, a mounting claw 223 extending outward from the motor body 222 may be connected to the side wall of the motor body 222, and a fastening hole may be provided on the mounting claw 223, and a fastener may pass through the fastening hole and connect with the base 51. Schematically, a plurality of mounting claws 223 may be arranged circumferentially on the outer side of the motor body 222, and these mounting claws 223 may be evenly distributed on the outer periphery of the motor body 222 to balance the force of the motor 22 seat. The fasteners include but are not limited to bolts, screws and positioning pins. In addition, the base 51 may be thickened at the connection position with the fastener to improve the bearing capacity of the base 51. For example, a connecting column 511 may be provided on the base 51, and the end of the connecting column 511 away from the base 51 may abut against the mounting claw 223, and the fastener may pass through the through hole of the mounting claw 223 and connect to the connecting column 511. The number of the connecting posts 511 may be consistent with the number of the mounting claws 223 .

[0076] In addition, a vibration reduction structure may be provided between the upper end of the motor body 222 and the base 51 to reduce the influence of the vibration generated by the motor 22 on the base 51. The vibration reduction structure may include a first vibration reduction sleeve, which may be located between the upper end of the motor body 222 and the lower end surface of the base 51. The first vibration reduction sleeve may be made of an elastic material such as rubber to reduce vibration.

[0077] Installation of the first bevel gear 23:

[0078] like Figure 5 As shown, the first bevel gear 23 is rotatably mounted above the base 51, and the motor shaft 221 can pass through the base 51 and be connected to the first bevel gear 23. Among them, the upper end of the motor shaft 221 can be threadedly connected to, so as to realize the installation of the motor shaft 221 and the first bevel gear 23. Exemplarily, the motor shaft 221 may include a first section and a second section connected to each other, the first section of the motor shaft 221 is connected to the motor body 222, and the second section of the motor shaft 221 is threadedly connected to the first bevel gear 23. The cross-sectional radius of the first section of the motor shaft 221 is greater than the cross-sectional radius of the second section of the motor shaft 221. The lower end of the first bevel gear 23 can abut against the upper end surface of the first section of the motor shaft 221 to prevent the first bevel gear 23 from moving downward. In addition, the rotation direction of the motor shaft 221 can make the first bevel gear 23 and the motor shaft 221 threadedly tightened, so that the motor shaft 221 can drive the first bevel gear 23 to rotate.

[0079] Optionally, a vibration reduction structure may be provided between the first bevel gear 23 and the second bevel gear 24 to reduce the influence of the vibration on the first bevel gear 23 on the second bevel gear 24. The vibration reduction structure may include a second vibration reduction sleeve, which may be sleeved on the first bevel gear 23 to increase the contact surface between the second vibration reduction sleeve and the first bevel gear 23.

[0080] Installation of the second bevel gear 24:

[0081] like Figure 5 As shown, the second bevel gear 24 can be installed at the lower end of the water tank 11, wherein, in order to isolate the power unit 2 from the water in the water tank 11, a mounting recess 114 can be provided on the bottom wall of the water tank 11, the mounting recess 114 has an opening facing downward, and the second bevel gear 24 is at least partially installed in the mounting recess 114. The mounting recess 114 shell extends toward the inside of the water tank 11 and is located in the cylinder 12.

[0082] Optionally, in order to simplify the processing and / or assembly process, 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 port 1151 coaxial with the installation recess 114. Exemplarily, the bottom plate 115 is detachably connected to the water tank 11, for example, the bottom plate 115 and the water tank 11 are assembled together by screws.

[0083] The second bevel gear 24 can be arranged inside the insertion port 1151 to achieve modular installation. For example, a limit plate 1152 can be arranged inside the insertion port 1151, and the limit plate 1152 and the area below it can define the installation space of the second bevel gear 24. The second bevel gear 24 can be rotatably arranged in the installation space to limit the movable area of ​​the second bevel gear 24.

[0084] Based on the above, the insertion port 1151 is located on the outside of the first bevel gear 23, so that the activity area of ​​the first bevel gear 23 and the second bevel gear 24 can be limited by the limiting plate 1152, the insertion port 1151 and the base 51, that is, the upper part of the second bevel gear 24 is limited by the limiting plate 1152, and the lower part of the second bevel gear 24 is limited by the first bevel gear 23, so the longitudinal movement of the second bevel gear 24 will be limited, thereby avoiding the second bevel gear 24 and the first bevel gear 23 from disengaging, thereby ensuring the reliability of the transmission.

[0085] The lower end of the rotating shaft 21 may be threadedly connected to the second bevel gear 24. Exemplarily, the motor 22 causes the second bevel gear 24 to rotate, and the rotation direction of the second bevel gear 24 is such that the second bevel gear 24 and the rotating shaft 21 are in a mutually tightened state, that is, the movement direction of the second bevel gear 24 driven by the motor 22 may be opposite to the direction in which the rotating shaft 21 is disengaged from the second bevel gear 24, so that the second bevel gear 24 drives the rotating shaft 21 to rotate.

[0086] Figure 6 A three-dimensional schematic diagram of a base body 5 is shown. Figure 8 A top view of a water tank and a bottom plate is shown, as shown in FIG. Figure 6 and Figure 8 As shown, a vibration reduction structure may be provided between the bottom plate 115 and the base 51, and the vibration reduction structure may include a third vibration reduction pad 63. A portion of the vibration generated by the motor 22 is transmitted to the base 51. Since the third vibration reduction pad 63 is located between the bottom surface of the water tank 11 and the top surface of the base 51, the third vibration reduction pad 63 can reduce the energy caused by the vibration by deformation, thereby playing a vibration reduction role. Optionally, the third vibration reduction pad 63 includes but is not limited to a rubber pad, a spring, an elastic ball, and a spring sheet.

[0087] The base 51 is provided with a mounting hole, and the lower portion of the third shock absorbing pad 63 can be embedded in the mounting hole. The lower portion of the third shock absorbing pad 63 can be interference fit with the mounting hole to achieve the installation of the third shock absorbing pad 63.

[0088] The number of the third vibration damping pads 63 is non-limiting, and it can be one or more. For example, the figures and the figures show that four third vibration damping pads 63 are provided. Exemplarily, when there are two third vibration damping pads 63, the two third vibration damping pads 63 can be arranged on both sides of the first bevel gear 23 or the second bevel gear 24; when there are three third vibration damping pads 63, the three third vibration damping pads 63 can be distributed at the three vertices of the triangle to facilitate the installation reliability of the water tank 11; when there are four third vibration damping pads 63, the four third vibration damping pads 63 can be respectively located at the four corners of the approximately rectangular base 51. Of course, the structure of the third vibration damping pad 63 is not limited to this, and this embodiment is only used as an example here.

[0089] It should be pointed out that when there are multiple third vibration damping pads 63, at least part of the water tank 11 must be suspended on the base 51. That is to say, in the position where the third vibration damping pad 63 is not set, the base 51 and the water tank 11 will not contact, thereby further reducing the possibility of the vibration on the base 51 being transmitted to the water tank 11.

[0090] Optionally, a plurality of support protrusions 64 are provided on one side of the water tank 11 facing the base 51, and the support protrusions 64 are used to bear the pressure of the water tank 11 on the third vibration-damping pad 63. The third vibration-damping pad 63 and the support protrusions 64 may be staggered. The support protrusions 64 may be connected to the bottom wall of the water tank 11, and the third vibration-damping pad 63 may be provided below the support protrusions 64 to reduce the vibration at the contact point between the support protrusions 64 and the base 51.

[0091] In addition, the height of the third vibration-damping pad 63 in the axial direction of the water tank 11 may be equal to the height of the supporting protrusion 64 in the axial direction of the water tank 11. It should be noted that the third vibration-damping pad 63 will be affected by the gravity of the water tank 11, so after the third vibration-damping pad 63 is used for a period of time, the deformation ability of the third vibration-damping pad 63 may be weakened. By providing the supporting protrusion 64, the pressure of the water tank 11 on the third vibration-damping pad 63 can be reduced, so that the third vibration-damping pad 63 maintains its deformation ability to resist the vibration generated by the base 51.

[0092] In addition, the support protrusion 64 may include a cylinder, one end of which may be connected to the bottom wall of the water tank 11, and the other end of which may abut against the upper end surface of the base 51. Alternatively, the support protrusion 64 may include a prism, and the longitudinal cross-section of the prism may be arranged in a trapezoidal shape, and from the axis of the prism to the edge of the prism, the side wall of the prism gradually tilts toward the water tank 11, that is, the cross-section of the prism near the water tank 11 is larger than the cross-section of the prism near the base 51.

[0093] Optionally, the supporting protrusion 64 may be one or more, for example, Figure 8 Four support protrusions 64 are provided. Exemplarily, when there are two support protrusions 64, the two support protrusions 64 may be located on both sides of the first bevel gear 23 or the second bevel gear 24, and the two support protrusions 64 may be symmetrically arranged; when there are three support protrusions 64, the three support protrusions 64 may be distributed at the three vertices of a triangle to facilitate the installation reliability of the water tank 11; when there are four support protrusions 64, the four support protrusions 64 may be located at the four vertices of a rectangle, respectively, and in some examples, at least two of the four support protrusions 64 may be symmetrically arranged. Of course, the structure of the support protrusion 64 is not limited to this, and this is just an example.

[0094] As shown in the figure, a positioning protrusion 513 is provided on the base 51, and a first positioning recess 516 matching the positioning protrusion 513 is provided on the side of the water tank 11 facing the base 51, so as to realize the quick installation between the water tank 11 and the base 51. Optionally, the positioning protrusion 513 is conical, and the radius of the cross section of the positioning protrusion 513 gradually increases in the direction away from the water tank 11, so as to save effort when removing the water tank 11 from the base 51.

[0095] Optionally, at least two positioning protrusions 513 are provided on the base 51, and these positioning protrusions 513 are respectively located on both sides of the second bevel gear 24. The vibration at the second bevel gear 24 is relatively large, and the vibration can be transmitted in the vertical direction and the circumferential direction of the base 51. When the vibration is transmitted to the positioning protrusion 513, the vibration can be weakened by the height change of the transverse section of the positioning protrusion 513. In addition, the provision of multiple positioning protrusions 513 can limit the rotation of the water tank 11.

[0096] Installation of rotating shaft 21:

[0097] like Figure 5 As shown, the lower end of the rotating shaft 21 can be connected to the second bevel gear 24, and the rotating shaft 21 can pass through the insertion port 1151 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 installed in the insertion port 1151 and the mounting recess 114, and the mounting recess 114 or the insertion port 1151 can radially limit the rotating shaft 21 to avoid bending and damage of the rotating shaft 21. Exemplarily, a bearing 25 can be provided in the insertion port 1151, and the rotating shaft 21 can be rotatably arranged inside the insertion port 1151 through the bearing 25, and the bearing 25 can play a role of radial support for the rotating shaft 21. Optionally, the limiting plate 1152 can divide the insertion port 1151 into a first area and a second area arranged side by side in the upper and lower directions, the second bevel gear 24 can be located in the first area below the limiting plate 1152, and the bearing 25 can be located in the second area above the limiting plate 1152, so as to achieve modular installation.

[0098] 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 gasket 26 may isolate the oil seal 27 and the bearing 25 and prevent the rolling element of the bearing 25 from slipping out. The oil seal 27 may seal the rotating shaft 21 to prevent dust, liquid, etc. from entering.

[0099] Optionally, a bearing 25 may also be provided at the upper end of the mounting recess 114 to radially support the rotating shaft 21. The gasket 26 and the oil seal 27 mentioned above may also be provided at the upper end of the mounting recess 114.

[0100] It should be noted that the bearing 25 , the gasket 26 and the oil seal 27 on the mounting recess 114 and the insertion port 1151 may be symmetrically arranged.

[0101] like Figure 5 As shown, a connecting member 28 may be provided between the upper end side wall of the rotating shaft 21 and the inner wall of the cylinder 12, so as to connect the rotating shaft 21 and the cylinder 12 together through the connecting member 28. The connecting member 28 may be provided above the mounting recess 114 (e.g. Figure 5 As shown in FIG. 1 , the connecting member 28 may include a sleeve 281 and a connecting piece 282. The sleeve 281 may be sleeved on the outside of the first end of the rotating shaft 21. The two sides of the connecting piece 282 are respectively connected to the outside of the sleeve 281 and the inner wall of the cylinder 12. In this way, the connection between the rotating shaft 21 and the cylinder 12 can be achieved. In order to improve the sealing performance, the sleeve 281 may be formed as an integral part with the bottom wall of the water tank 11 by an integral molding method such as injection molding.

[0102] There may be one or more connecting pieces 282. When there are multiple connecting pieces 282, the multiple connecting pieces 282 may be evenly distributed around the circumference of the rotating shaft 21 to improve the connection strength between the connecting piece 28 and the cylinder 12. At the same time, the connecting piece 282 may also support the cylinder 12 to improve the structural strength of the cylinder 12.

[0103] Continue to refer Figure 5 The top end of the rotating shaft 21 can be connected to the upper cover 13 to simultaneously drive the upper cover 13 to rotate. Exemplarily, the inner wall of the upper cover 13 can be provided with a mounting block, the mounting block extends downward, and the upper end of the rotating shaft 21 can be threadedly connected to the mounting block.

[0104] In addition, if Figure 5 As shown, a reinforcing rib may be provided between the outer side wall of the mounting block and the upper cover 13 to support the mounting block and strengthen the strength of the mounting block. Exemplarily, one end of the reinforcing rib is connected to the outer side wall of the mounting block, and the other end of the reinforcing rib extends toward the inner wall of the upper cover 13 and is connected to the inner wall of the upper cover 13. Optionally, the reinforcing rib may be provided around the circumference of the mounting block to enhance the circumferential strength of the mounting block.

[0105] Alternatively, if Figure 5 As shown, an annular protrusion may be connected to the bottom wall of the upper cover 13, and the annular protrusion may extend toward the bottom end of the cylinder 12. There is a gap between the annular protrusion and the side wall of the upper cover 13, and the top end of the side wall of the cylinder 12 may extend into the gap.

[0106] The following is an explanation of the cooperation between the water tank 11 and the base 51:

[0107] refer to Figure 1 and Figure 6 As shown, the base 51 may include a bottom wall and a side wall, and the side wall of the base 51 may be connected to at least a portion of the periphery of the bottom wall of the base 51 and extend upward. Optionally, at least a portion of the water tank 11 may be embedded in the base 51, and a gap is formed between the outer wall of the water tank 11 and the side wall of the base 51. The transmission of vibration is avoided by reducing the contact between the outer wall of the water tank 11 and the side wall of the base 51. Optionally, a vibration-damping pad may be provided between the outer wall of the water tank 11 and the side wall of the base 51.

[0108] In addition, if Figure 1 , Figure 6 and Figure 8As shown, the cross section of the base 51 may include an arcuate portion and a rectangular portion, and the arcuate portion and the vertical portion correspond and are connected. The shapes of the two ends of the base 51 can be set to be inconsistent, so that the user can find the correct position, which is conducive to the installation between the water tank 11 and the base 51. In addition, one side of the base 51 is set to be open, and a pick-up and placement protrusion 514 is provided at the opening. The two ends of the pick-up and placement protrusion 514 are connected to the groove wall of the base 51. The pick-up and placement protrusion 514 and the side wall of the base 51 are surrounded by a accommodating space. At least part of the bottom plate 115 and the first bevel gear 23 can be located in the accommodating space. The accommodating space can play a role in limiting the circumference of the bottom plate 115. The bottom plate 115 can be provided with an avoidance recess that matches the shape of the pick-up and placement protrusion 514 so that the user can take the water tank 11.

[0109] Optionally, the base 51 may be provided with a take-out groove 515, which may be opened on the side of the pick-up and placement protrusion 514 away from the accommodating space, and the bottom end of the take-out groove 515 may be lower than the upper end surface of the pick-up and placement protrusion 514. At least part of the bottom plate 115 and the water tank 11 are located above the take-out and placement groove, and a hand-grip protrusion 1153 may be provided on the bottom plate 115 directly opposite the take-out and placement groove, and the hand-grip protrusion 1153 may extend toward the take-out and placement groove. When the water tank 11 is to be taken out, the user may put his hand into the take-out groove 515, hold the hand-grip protrusion 1153 upward, and pull it outward, so that the first bevel gear 23 and the second bevel gear 24 can be separated, and the water tank 11 and the base 51 can be easily separated.

[0110] Alternatively, if Figure 1 and Figure 8 As shown, two opposite side walls of the water tank 11 may be provided with gripping recesses 116, which may extend into the water tank 11. When taking out the water tank 11, the user may also extend his hand into the gripping recesses 116 and pull the water tank 11 outward.

[0111] Since the base 51 is used to carry the water tank 11, the power unit 2 and the washing unit 1, in order to improve the stability and structural strength of the base 51 so as to carry the weight of the motor 22 and the water tank 11, the following base reinforcement structure can be used.

[0112] Fig. 9 A three-dimensional schematic diagram of a base 51 and a water tank 11 is shown, referring to Figure 5 and Fig. 9 As shown, the base reinforcement structure includes an auxiliary rib 5121, which can be connected to the base 51 and extend toward the mounting claw 223, and one side of the auxiliary rib 5121 can be connected to the connecting column 511 mentioned above to provide support for the connecting column 511. There can be one or more auxiliary ribs 5121, and multiple auxiliary ribs 5121 can be evenly distributed around the circumference of the connecting column 511 to evenly support the circumference of the connecting column 511.

[0113] Optionally, the height of the auxiliary rib 5121 may be higher than the height of the connecting column 511, and a limiting groove may be provided at the upper end of the auxiliary rib 5121, and the limiting groove has an opening on the side facing the connecting column 511. The bottom wall of the limiting groove may abut against the upper end of the mounting claw 223 (or the bottom wall of the limiting groove may be flush with the bottom end of the connecting column 511) to limit the mounting claw 223 in the longitudinal direction. The groove wall of the limiting groove may abut against the side wall of the mounting claw 223 to limit the periphery of the mounting claw 223.

[0114] It can be understood that the mounting claw 223 may include a first side wall, a second side wall, a third side wall and a fourth side wall, wherein the first side wall and the second side wall are arranged opposite to each other, the third side wall and the fourth side wall are arranged opposite to each other, and the first side wall may be connected to the motor body 222. Exemplarily, three auxiliary ribs 5121 may be connected to a connecting column 511, and the three auxiliary ribs 5121 may be evenly distributed on the side wall of the connecting column 511, and the upper ends of the three auxiliary ribs 5121 are provided with limiting grooves, and the second side wall, the third side wall and the fourth side wall of the mounting claw 223 may respectively abut against the three groove walls of the three limiting grooves, so as to limit the second side wall, the third side wall and the fourth side wall of the mounting claw 223. It should be noted that this is only a distance description, and the number of the auxiliary ribs 5121 is not specifically limited.

[0115] Optionally, the base reinforcement structure may further include a connecting protrusion 5122, and a connecting protrusion 5122 may be provided between at least two auxiliary ribs 5121 that are adjacent to each other and connected to different connecting columns 511, so that a plurality of connecting columns 511 are connected as a whole, thereby improving the structural strength of the base 51. The connecting protrusion 5122 may be arc-shaped, and the motor 22 may be located in the connecting protrusion 5122. Optionally, the height of the connecting protrusion 5122 may be less than the height of the auxiliary rib 5121, so as to reduce unnecessary structural weight while ensuring the strength of the connecting column 511.

[0116] Alternatively, if Fig. 9 As shown, the base reinforcement structure may further include a support rib 5123, which may be connected to the base 51 and extend toward the mounting claw 223, and one side of the support rib 5123 may be connected to the auxiliary rib 5121, so as to provide support for the auxiliary rib 5121 along the thickness direction of the auxiliary rib 5121. The support rib 5123 may span the height direction of the auxiliary rib 5121 (i.e., the support rib 5123 may be connected to the highest height of the auxiliary rib 5121), so as to better support the position where the connecting column 511 and the mounting claw 223 are connected.

[0117] Optionally, the base reinforcement structure may further include radial ribs 5124, which may be connected to the base 51 and may extend in the direction of the mounting claws 223. One end of the radial rib 5124 may be connected to the outer side wall of the connecting protrusion 5122 or the auxiliary rib 5121, and the other end of the radial rib 5124 may extend to the edge of the base 51, so as to improve the overall structural strength of the base 51. There may be multiple radial ribs 5124, and the multiple radial ribs 5124 may be evenly distributed on the outer side of the connecting protrusion 5122 or the auxiliary rib 5121. In addition, the radial ribs 5124 may be provided with wire grooves 5125, so that the wires or data cables pass through the wire grooves 5125. A limiting protrusion 5126 may be provided on the base 51, and the limiting protrusion 5126 may include a vertical section and a horizontal section. The vertical section may extend toward the mounting claw 223, and cables for power supply and / or communication may pass through the gap between the horizontal section and the base 51 to limit the movement of the cable in the longitudinal direction.

[0118] Alternatively, if Fig. 9 As shown, the base reinforcement structure may further include circumferential ribs 5127, which may be sleeved on the outside of the connecting protrusions 5122 and / or the auxiliary ribs 5121, and circumferential ribs 5127 may be provided between two adjacent radial ribs 5124, so as to strengthen the connection between the plurality of radial ribs 5124, thereby strengthening the structural strength of the base 51. Among them, at least one circumferential rib 5127 may be provided between two adjacent radial ribs 5124. It can be understood that the more circumferential ribs 5127 there are between two adjacent radial ribs 5124, the more stable the structure of the radial ribs 5124.

[0119] Alternatively, if Figure 5 As shown, a vibration-damping protrusion may be provided on the base 51, and the vibration-damping protrusion may be provided in a ring shape and may extend toward the direction of the motor body 222. The first vibration-damping sleeve mentioned above may be provided on the upper end of the motor 22 seat, and may be embedded in the vibration-damping protrusion, and the vibration-damping protrusion may limit the position of the vibration-damping sleeve. By providing the vibration-damping sleeve, the contact area between the motor body 222 and the motor body 222 may be increased, thereby improving the vibration-damping effect.

[0120] like Figure 5 As shown, a water outlet hole 722 is provided on the base 51 directly below the water tank 11, and a water outlet pipe is connected to the water outlet hole 722. Excess water can overflow from the air inlet into the gap between the base 5 and the water tank 11, and fall along the side wall of the base 5 and flow into the water outlet hole 722.

[0121] It is worth noting that the wind direction flow of the air purification device as a whole can enter from the side and then flow out from the top or side, or it can also enter from the bottom and then flow out from the top or side. Different air intake methods lead to different air intake parts 3, and the air intake part 3 is arranged on the base 5, so the shape of the base 5 corresponding to different air intake methods may be different. In addition, although the air intake methods are different, the structural forms of the power part 2, water tank 11 and water washing part 1 mentioned above can be the same.

[0122] The base 5 includes the base 51 and the base shell mentioned above. The base 51 can be used for installing the power unit 2, the water tank 11, and the washing unit 1, and the base shell is used for installing the air inlet 3. The base 51 is located in the base shell. The air inlet 3 and the air outlet 4 of the air purification device are specifically described below in combination with the side air inlet and side air outlet.

[0123] Figure 1 and Figure 6 The substrate shown is an example of an air purification device that takes in air from the side. Figure 1 and Figure 6 As shown, the base 5 may include a first base shell 53 and a base 51, and the first base shell 53 may include a top wall and a side wall. The inner side of the top wall of the first base shell 53 may be connected to the outer periphery of the upper end side wall of the base 51, and the side wall of the first base shell 53 may be connected to the outer side of the top wall of the first base shell 53 and extend downward. The radial ribs 5124 mentioned above may be provided between the side walls of the first base shell 53 and the side walls of the base 51, and grooves may be provided on the radial ribs 5124 so that cables for power supply and / or communication can pass through, and the purpose of weight reduction can also be achieved.

[0124] Fig.10 A top view of an air purification device is shown. Fig.11 Show Fig.10 Partial three-dimensional cross-sectional view at MM, such as Figure 1 and Fig.11 As shown, the air inlet 3 may further include a primary filter assembly 31 to perform primary filtering on the gas to be introduced into the water tank 11 . Figure 7 A three-dimensional schematic diagram of a primary filter assembly 31 is shown, as Figure 7 As shown, the primary filter assembly 31 may include a filter layer 311 and a filter frame 312. The filter layer 311 may be sleeved on the outside of the air inlet of the water tank 11, and the filter frame 312 may be sleeved on the outside of the filter layer 311. When the water tank 11 is mainly formed by connecting an arc-shaped portion and a vertical portion, the air inlet may be arranged on the arc-shaped portion, and the primary filter assembly 31 is arranged on the outside of the arc-shaped portion of the water tank 11. For ease of description, the arc-shaped portion of the water tank 11 is defined as the front end of the water tank 11, and the vertical portion of the water tank 11 is defined as the rear end of the water tank 11.

[0125] It is understandable that the filter frame 312 may be provided with a through hole so that the external gas enters from the through hole and passes through the filter layer 311 for primary filtration, and then enters the water tank 11 from the air inlet of the water tank 11 and is purified by the water curtain. Exemplarily, the filter frame 312 may include a side wall, an upper wall and a bottom wall, and the upper wall of the filter frame 312 and the bottom wall of the filter frame 312 are respectively connected to the two ends of the side wall of the filter frame 312, and both may extend toward the axial direction of the water tank 11. The side wall, upper wall and bottom wall of the filter frame 312 define an installation space for installing the filter layer 311.

[0126] Optionally, refer to Figure 1 and Fig.11 As shown, the upper wall of the filter frame 312 can be connected to the upper end of the water tank 11. Exemplarily, the upper end side wall of the water tank 11 is arranged in a stepped shape to form a placement groove 112 for connecting the upper water retaining structure 15. It can be understood that the bottom wall of the placement groove 112 can abut against the upper wall of the filter frame 312 to limit the longitudinal height of the filter frame 312.

[0127] Optionally, continue combining Figure 1 and Fig.11 It can be obtained that the bottom wall of the filter frame 312 can be connected to the upper end surface of the first base shell 53, and the first base shell 53 can be used to support the filter frame 312. In addition, in the radial direction, the length of the bottom wall of the filter frame 312 can exceed the thickness of the filter layer 311. In other words, the bottom wall of the filter frame 312 is at least partially not covered by the filter layer 311. A limiting plate 101 can be connected to the outer side wall of the water tank 11, and the limiting plate 101 can abut against the upper end surface of the part of the bottom wall of the filter frame 312 that exceeds the filter layer 311, so as to achieve the positioning of the filter frame 312 in the longitudinal direction. In addition, the side wall of the water tank 11 can be connected to the abutment protrusion 102, the abutment protrusion 102 can extend toward the outside of the water tank 11, and the abutment protrusion 102 can abut against one side of the filter layer 311 in the thickness direction. It can be understood that the side wall of the filter frame 312 and the abutment protrusion 102 can limit the displacement of the filter layer 311 in the thickness direction.

[0128] Optionally, combined Figure 6 and Figure 7 The upper end surface of the front end of the first base shell 53 may be provided with a limiting protrusion 531, and the inner wall of the limiting protrusion 531 may abut against the outer side wall of the front end of the filter frame 312, so as to limit the radial direction of the filter frame 312. For example, the filter frame 312 and the filter layer 311 may be designed to be arc-shaped, and the shape of the limiting protrusion 531 may match the shape of the filter layer 311, so as to fit the outer side wall of the filter frame 312.

[0129] Optionally, a positioning hole 532 may be provided on the limiting protrusion 531. A positioning plate 313 may be connected to the outer side wall of the filter frame 312, and the positioning plate 313 may extend in the axial direction away from the water tank 11. The positioning plate 313 may be cooperatively connected to the positioning hole 532. Exemplarily, at least a portion of the positioning plate 313 may be penetrated through the positioning hole 532. It can be understood that when the filter frame 312 is installed on the first base shell 53, it is only necessary to extend the positioning plate 313 out of the positioning hole 532, so as to facilitate the positioning and installation of the filter frame 312. In addition, the positioning hole 532 may be arranged in a direction parallel to or overlapping with the symmetry axis of the first base shell 53, so that when the filter frame 312 is installed, it is only necessary to push the positioning plate 313 on the filter frame 312 through the positioning hole 532 in this direction, so that quick installation can be achieved.

[0130] Optionally, continue combining Figure 5 and Fig. 9 It can be obtained that a limiting recess 533 may be provided on the upper end surface of the rear end of the first base shell 53, and a plug-in protrusion 314 may be provided on the bottom wall of the filter frame 312, and the plug-in protrusion 314 may be matched and connected to the limiting recess 533. Exemplarily, the plug-in protrusion 314 may include a vertical section connected to the bottom wall of the filter frame 312, and a horizontal section bent toward the front end of the filter frame 312 relative to the vertical section. The upper end of the limiting recess 533 may be open, and the limiting recess 533 includes a groove wall and a groove bottom. The groove wall of the limiting recess 533 located at the front end may be provided with a plug hole 534, and the horizontal section of the plug-in protrusion 314 may be inserted into the plug hole 534, so as to achieve the limiting and installation of the filter frame 312. It can be understood that the horizontal section of the plug-in protrusion 314 can slide on the groove bottom of the limiting recess 533, so as to limit the movement track of the filter frame 312.

[0131] Optionally, a front protrusion 535 is provided on the top surface of the front end of the first base shell 53, and a groove matched with the front protrusion 535 may be provided on the bottom wall of the filter frame 312 to at least partially limit the forward and backward movement of the filter frame 312. In some examples, the cross-section of the front protrusion 535 gradually increases from top to bottom, that is, the front protrusion 535 is generally conical.

[0132] Optionally, a placement recess 536 for mounting the controller 182 of the water shortage prompt device may be provided on the first base shell 53 (an opening is also provided on the corresponding surface of the base 51), and the bottom wall of the filter frame 312 may be used to shield the placement recess 536 so as to limit the wires connected to the controller 182. A wiring hole 537 may be provided on the first base shell 53 for the routing of cables.

[0133] About air outlet 4:

[0134] like Fig.11As shown, the air outlet portion 4 may include an air outlet cover 41, which may be hollow, and the lower end of the air outlet cover 41 may be provided with an opening connected to the upper end of the water tank 11. A fan may be provided in the air outlet cover 41 to guide the gas to enter the water tank 11 and pass through the water curtain formed in the water tank 11. The air outlet cover 41 is provided with an air outlet to facilitate the outlet of the gas.

[0135] Exemplarily, the type of the fan may be centrifugal, axial flow, diagonal flow (mixed flow) or cross flow, etc. Figure 1 Taking the centrifugal fan as an example, other types of fans can be obtained by reference. Among them, the centrifugal fan 431 may include an impeller 4311 and a centrifugal motor 4312 for driving the impeller 4311. Among them, the impeller 4311 may include a hub and a fan blade. It can be understood that when the centrifugal motor 4312 is started, the impeller 4311 rotates, and the air in the flow channel (two adjacent fan blades can constitute a flow channel) moves outward under the action of centrifugal force, and a vacuum is generated in the center of the impeller 4311. Therefore, the gas coming out of the upper end opening of the water tank 11 is sucked into the impeller 4311, and the sucked gas is turned 90° at the entrance of the impeller 4311, and then enters the flow channel, and obtains kinetic energy and pressure energy under the action of the fan blade. The airflow thrown out of the flow channel enters the air outlet hood 41, and after centralized diversion, it is discharged from the air outlet of the air outlet hood 41.

[0136] It can be understood that the fan blades can be arranged at an angle, and the inclination direction of the fan blades can be opposite to the rotation direction of the impeller 4311. The following description can be made by taking the example that the fan blades 43111 are arranged clockwise and the impeller 4311 rotates counterclockwise. Here, the rotation direction of the impeller 4311 can also be clockwise. When the impeller 4311 rotates clockwise, the arrangement of the air outlet hood 41 can refer to

[0137] like Figure 1 and Fig.11 As shown, in order to facilitate the installation of the fan, the air outlet cover 41 may include an upper cover body 433 and a lower cover body 432, and the upper cover body 433 may be detachably connected to the lower cover body 432. The lower cover body 432 may be provided with a central hole that is arranged through, and the lower end of the central hole may be connected to the upper end opening of the water tank 11.

[0138] The structure of the lower cover body 432 is described below from bottom to top.

[0139] like Figure 1 and Fig.11 As shown, the lower cover body 432 may include a mounting portion and a guiding portion, wherein the mounting portion may be used to connect to the water tank 11 and / or the filter frame 312, and the guiding portion may be used to guide the flow direction of the gas in the air outlet cover 41. Fig.12 A schematic diagram showing the connection position of a part of the water tank 11 and the lower cover 432, as shown in FIG. Fig.11 and Fig.12As shown, the mounting portion may include a first mounting section 4321, which may be arranged in a ring shape and may be sleeved on the upper outer wall of the water tank 11. A vibration reduction structure may be provided between the upper outer wall of the water tank 11 and the inner wall of the first mounting section 4321, and the vibration reduction structure may include a vibration reduction pad 65 to reduce noise at the connection position between the first mounting section 4321 and the water tank 11. In addition, the vibration reduction pad 65 may also play a sealing role to prevent the discarded washing liquid from flowing to the outside of the lower cover 432.

[0140] In addition, when the side wall of the water tank 11 is provided with a primary filter assembly 31, the mounting portion may further include a second mounting section 4322, the second mounting section 4322 may include a side wall and an upper wall, the upper wall of the second mounting section 4322 may be bent toward the outside relative to the first mounting section 4321 (the "outside" here refers to the outside of the lower cover 432), and the side wall of the second mounting section 4322 may be bent toward the bottom relative to the upper wall of the second mounting section 4322. The upper wall of the second mounting section 4322 may abut against the upper end surface of the filter frame 312, and the side wall of the second mounting section 4322 may be sleeved on the outer side of the upper end of the filter frame 312. In this way, the upper and lower ends of the filter frame 312 are respectively restricted by the upper wall of the second mounting section 4322 and the upper end surface of the first base shell 53, and the inner and outer sides of the filter frame 312 are respectively restricted by the water tank 11 and the side walls of the second mounting section 4322, so as to realize the restriction of the height direction of the filter frame 312 by the second mounting section 4322, and the restriction of the thickness direction of the filter frame 312 (that is, the radial direction of the filter frame 312).

[0141] In addition, if Figure 1 As shown, a first reinforcing plate 4341 may be provided between the upper walls of the first mounting segment 4321 and the second mounting segment 4322 so as to strengthen the connection between the first mounting segment 4321 and the second mounting segment 4322 .

[0142] Alternatively, if Fig.11 As shown, the guide portion may include a concentrating plate 4323 connected to the outer periphery of the upper end of the first mounting section 4321, and the concentrating plate 4323 may be provided with a concentrating hole that is arranged through, and the concentrating hole may correspond to the air inlet of the impeller 4311. The gas entering the first mounting section 4321 may pass through the concentrating hole, so as to reduce the radius of the cross-sectional area of ​​the lower cover 432, so that the gas is concentrated to the air inlet position of the impeller 4311, which is conducive to the gas entering the impeller 4311.

[0143] The guide portion may further include a first guide protrusion 4324 arranged in an annular shape, the first guide protrusion 4324 is located below the impeller 4311, and may be connected to the circumference of the concentration hole, and may be bent toward the inside of the impeller 4311, so as to guide the purified gas into the impeller 4311 of the centrifugal fan 431. Among them, at least part of the first guide protrusion 4324 is embedded in the impeller 4311 of the centrifugal fan 431, so as to facilitate the smooth docking of the radial section of the first guide protrusion 4324 and the impeller 4311. It can be understood that the first mounting section 4321, the concentration plate 4323 and the first guide protrusion 4324 can define a first guide air duct.

[0144] also, Fig.13 Show Figure 1 A transverse cross-sectional view at the middle position of the first air outlet 43281, such as Fig.11 and Fig.13 As shown, the inner wall of the upper end of the first guide protrusion 4324 may be connected to a balancing plate 4325 so as to disperse the gas into several areas so as to achieve uniform air discharge. Wherein "uniform air discharge" means that the flow rate of the gas in the areas at the same radial position may be the same. Exemplarily, the balancing plate 4325 may include a circumferential edge strip 43251 and a radial edge strip 432542. The circumferential edge strip 43251 may be arranged in an annular shape, and may be located in the first guide protrusion 4324, and may be arranged concentrically with the first guide protrusion 4324. The radial edge strip 432542 may be arranged along the radial direction of the first guide protrusion 4324, and the first guide protrusion 4324 and the circumferential edge strip 43251 may be connected together to form several areas.

[0145] Understandably, if Fig.11 As shown, the hub of the centrifugal fan 431 may include an air inlet section and a connecting section located above the air inlet section, the air inlet section is used to guide the gas to enter, and the connecting section is used to install the centrifugal motor 4312. The air inlet section and the connecting section may be connected by a fan blade. From top to bottom, the air inlet section gradually bends toward the outside of the impeller 4311 so as to guide the gas to the outside of the impeller 4311.

[0146] In addition, if Fig.11 As shown, when designing the lower cover 432, in order to better fit the air inlet section of the centrifugal fan 431, or to guide the gas to the outside of the impeller 4311, the following settings can be used. Exemplarily, the guide portion may include a second guide protrusion 4326, which may be arranged in an annular shape, and the second guide protrusion 4326 may be sleeved on the outside of the air inlet section of the hub, and may be connected to the concentrating plate 4323, and may be bent toward the outside of the impeller 4311. A second guide channel 422 is defined between the second guide protrusion 4326 and the air inlet section of the hub.

[0147] Exemplarily, the second guide protrusion 4326 may include an axial section and a radial section, and the axial section of the second guide protrusion 4326 may be connected to and concentrate the plate 4323 and extend upward. The radial section of the second guide protrusion 4326 may be bent toward the outside of the impeller 4311 relative to the axial section of the second guide protrusion 4326. The air inlet section of the hub may be located between the first guide protrusion 4324 and the second guide protrusion 4326.

[0148] In addition, an air outlet 43231 may be provided on the concentrating plate 4323 located between the air inlet section of the hub and the second guide protrusion 4326. It can be understood that a portion of the gas coming out of the water tank 11 passes through the air outlet 43231 and enters the second guide channel 422, and another portion of the gas coming out of the water tank 11 may enter the impeller 4311 through the first guide air channel, and merge with the gas flowing out of the second guide channel 422 through the flow channel of the impeller 4311.

[0149] Optionally, the guide portion may further include a third guide protrusion 4327 and a fourth guide protrusion 4328, wherein the third guide protrusion 4327 may be connected to the second guide protrusion 4326 and extend toward the outside of the lower cover 432. The fourth guide protrusion 4328 may be bent upward relative to the third guide protrusion 4327, and the fourth guide protrusion 4328 may be provided with a first air outlet 43281. The third guide protrusion 4327 and the fourth guide protrusion 4328 may limit a third guide channel 423 so as to guide the gas out of the air outlet cover 41 from the first air outlet 43281. In addition, the upper end of the first air outlet 43281 located on the lower cover 432 may be opened, and the opening height of the first air outlet 43281 may be greater than the height of the flow channel of the impeller 4311, so as to ensure that the gas coming out of the flow channel of the impeller 4311 can smoothly enter the first air outlet 43281.

[0150] Alternatively, if Figure 1 , Fig.11 as well as Fig.13 As shown, there can be one first air outlet 43281, or there can be multiple first air outlets 43281. It is very common that there is one first air outlet 43281, and it will not be described in detail here. Fig.11 As shown, when there are a plurality of first air outlet holes 43281, the fourth guide protrusion 4328 between two adjacent first air outlet holes 43281 may be bent toward a direction gradually away from the periphery of the impeller 4311 from one first air outlet hole 43281 to another first air outlet hole 43281 along the rotation direction of the impeller 4311, so as to gradually guide the flow direction of the gas and reduce the energy loss between the gas and the fourth guide protrusion 4328. In addition, the plurality of first air outlet holes 43281 may be symmetrically arranged to balance the flow of the gas so that the water-washed air is kept stable.

[0151] It can be understood that the water-washing air purification device of the present application can be applied to floor-standing air conditioning equipment, so it is suitable for users' requirements on air outlet height, and the air outlet of the air outlet cover 41 can be adjusted upward to expand the air outlet height. Figure 1 and Fig.11 As shown, the fourth guide protrusion 4328 may be provided with a side guide recess 43282, which may extend toward the outside of the lower cover 432, and the side guide recess 43282 may be provided with a second air outlet 43283, and the air outlet height of the second air outlet 43283 may be higher than the air outlet height of the first air outlet 43281. In particular, from the axis of the lower cover 432 to the outer circumference of the lower cover 432, the bottom wall of the side guide recess 43282 may gradually tilt upwards, so as to guide the gas located in the third guide channel 423 upwards. It can be understood that the side wall and the bottom wall of the side guide recess 43282 may define a fourth guide channel 424, which may be connected to the third guide channel 423, and may guide the gas upwards and flow out from the second air outlet 43283.

[0152] In addition, if Figure 1 As shown, an upward plate 43284 may be provided in the first air outlet 43281, and the upward plate 43284 gradually tilts upward along the rotation direction of the impeller 4311, so as to obtain gas moving obliquely upward. The upward plates 43284 may be evenly distributed in the height direction of the first air outlet 43281, so as to evenly discharge air.

[0153] Alternatively, if Fig.13 As shown, the adjacent first air outlet hole 43281 and the second air outlet hole 43283 are arranged along the direction of rotation of the impeller 4311, from one first air outlet hole 43281 (or the second air outlet hole 43283) to another second air outlet hole 43283 (or the first air outlet hole 43281), and the fourth guide protrusion may be bent toward the peripheral direction gradually away from the impeller 4311.

[0154] Alternatively, if Figure 1 As shown, the outer side of the second guide protrusion 4326 may be connected to a reinforcing structure, which may be a second reinforcing plate 54344342. The upper and lower ends of the second reinforcing plate 54344342 may be respectively connected to the third guide protrusion 4327 and the first guide protrusion 4324 to improve the bearing capacity of the lower cover body 432.

[0155] Alternatively, if Fig.13As shown, the first air outlet holes 43281 and the second air outlet holes 43283 on the upper cover body 433 may be symmetrically arranged, and the two first air outlet holes 43281 or the two second air outlet holes 43283 may be arranged on both sides of the symmetry axis, so as to improve the balance of the air outlet of the air outlet cover 41. Exemplarily, the two second air outlet holes 43283 may be located at the front end of the lower cover body 432, and the two first air outlet holes 43281 may be located at the rear end of the lower cover body 432. The front end of the lower cover body 432 is in the same direction as the front end of the water tank 11, and the rear end of the lower cover body 432 is in the same direction as the rear end of the water tank 11.

[0156] In order to achieve the above-mentioned symmetry requirement, the fourth guide protrusion 4328 may have a corresponding curve turning change between two adjacent first air outlet holes 43281 (or between the first air outlet hole 43281 and the second air outlet hole 43283). The fourth guide protrusion 4328 between two first air outlet holes 43281 is taken as an example for a brief description. Among them, the first air inlet can be defined between two adjacent fourth guide protrusions 4328 arranged in parallel.

[0157] For example, the first air outlet 43281 may include a first end and a second end, and along the rotation direction of the impeller 4311, the first end may be located before the second end. Fig.12 As shown, the second end of the first air outlet hole 43281 on the right side can be connected to the first end of the first air outlet hole 43281 on the left side through the fourth guide protrusion 4328. The fourth guide protrusion 4328 may include a first straight section 43285, an arc section 43286 and a second straight section 43287, the first straight section 43285 may be connected to the second end of the first air outlet 43281 on the right side, the second straight section 43287 may be connected to the first end of the second air outlet 43283, the first straight section 43285 and the second straight section 43287 may be symmetrically arranged so as to determine the symmetry reference of the two symmetrical first air outlet holes 43281; the arc may include a first end and a second end, the first end of the arc section 43286 may be connected to the second straight section 43287 opposite to the rotation direction of the impeller 4311, the second end of the arc section 43286 may be bent in a direction gradually approaching the impeller 4311, and the second end of the arc section 43286 may be lower than the first end of the arc section 43286. So that as the impeller 4311 rotates, the gas can smoothly enter the first air outlet 43281 on the left; the second end of the arc segment 43286 and the first straight segment 43285 may have a transition segment 43288, so that the gas can smoothly enter the first air outlet 43281 on the right.

[0158] Optionally, by Fig.13It can be seen that the transition section 43288 has an obvious mutation point, that is, an obvious angle change point. Therefore, in order to improve the structural strength of the fourth guide protrusion 4328 at the transition section 43288, that is, to improve the structural strength at the cross-sectional mutation point, the guide portion may further include a transition plate, which may connect the transition section 43288 and at least part of the arc section 43286.

[0159] The upper cover body 433 is described below:

[0160] like Figure 1 and Fig.11 As shown, the upper cover body 433 may include an upper cover plate 4331, and the upper cover plate 4331 may be used to cover the center hole on the lower cover body 432. The fan may be suspended on the upper cover body 433 to reduce the influence of the vibration of the fan on the air outlet cover 41. The upper cover body 433 and the lower cover body 432 may be connected by fasteners. For example, the upper end of the fourth guide protrusion 4328 of the lower cover body 432 may be connected to the lower cover plate 4329, and the lower cover plate 4329 may extend toward the outside of the impeller 4311. The lower end of at least part of the upper cover plate 4331 may abut against the upper end of the lower cover plate 4329, and may be connected together by fasteners.

[0161] In addition, a lower cover flange 43291 may be connected to the lower cover plate 4329, the lower cover flange 43291 may extend upward, and a preset gap may be provided between the lower cover flange 43291 and the fourth guide protrusion 4328. The side wall of the upper cover plate 4331 may be embedded in the lower cover flange 43291 to limit the movement of the upper cover plate 4331. In addition, an upper cover flange 43311 may be connected to the outer periphery of the upper cover plate 4331 to strengthen the structural strength of the upper cover plate 4331. The upper cover flange 43311 may extend upward and be embedded in the lower cover flange 43291.

[0162] In addition, a fastening protrusion 43292 may be connected to the lower end of the lower cover plate 4329 , and a fastener may pass through the upper cover plate 4331 and the lower cover plate 4329 in sequence and be threadedly connected to the fastening protrusion 43292 .

[0163] Alternatively, if Fig.11As shown, an upper guide recess 4332 may be provided on the upper cover plate 4331, and the upper guide recess 4332 may extend upward so as to increase the air outlet height and area of ​​the first air outlet hole 43281 and / or the second air outlet hole 43283. Exemplarily, the upper guide recess 4332 may include a first end and a second end, and the height of the upper guide recess 4332 gradually increases along the direction of rotation of the impeller 4311. That is, the height of the second end of the upper guide recess 4332 is higher than the height of the first end of the upper guide recess 4332. The second end of the upper guide recess 4332 may be provided with an opening, and connected to the first air outlet hole 43281 and / or the second air outlet hole 43283. Each of the first air outlet hole 43281 and / or the second air outlet hole 43283 is connected to a corresponding upper guide recess 4332.

[0164] It can be understood that when the upper guide recess 4332 is not provided, the upper cover plate 4331, the third guide protrusion 4327 and the fourth guide protrusion 4328 define the third guide channel 423, and the height of the first air outlet 43281 and / or the second air outlet 43283 must be lower than the height between the upper cover plate 4331 and the third guide protrusion 4327. When the upper guide recess 4332 is provided, the gas can be guided upward, and the height of the first air outlet 43281 and / or the second air outlet 43283 is also increased.

[0165] Optionally, Fig.14 Show Fig.10 The partial cross-sectional view at NN is as follows: Fig.10 , Fig.11 as well as Fig.14 As shown, a connection pad 66 may be provided between the fan and the upper cover 433, and the connection pad 66 may be made of rubber material so as to have a vibration reduction effect. When assembling the fan, a fastener may be used to pass through the upper cover 433 and the connection pad 66 in sequence to connect with the fan.

[0166] Optionally, an upper recess extending upward may be provided on the upper cover body 433, and at least a portion of the fan may be embedded in the upper recess so that the fan can be positioned through the upper recess.

[0167] Optionally, a positioning groove may be provided at the upper end of the upper cover body 433, and a positioning flange 661 may be connected to the connection gasket 66, and the positioning flange 661 may extend toward the upper cover body 433 and extend into the positioning groove. The outer side wall of the positioning flange 661 may abut against the groove wall of the positioning groove.

[0168] It is worth noting that the difficulty of determining the relative position of the fan relative to the upper cover 433 can be reduced by designing the shape of the positioning groove. Exemplarily, the positioning groove can be asymmetrical, or symmetrical, for example, the positioning groove can be in a "cross" shape.

[0169] For example, Fig.14 As shown, a reinforcing column 662 may be connected to the connecting gasket 66, and at least two through holes may be provided on the upper cover body 433. The reinforcing column 662 may include a first end and a second end, and the cross section of the first end of the reinforcing column 662 may be larger than the cross section of the second end of the reinforcing column 662. The first end of the reinforcing column 662 may be located above the upper cover body 433, the lower end surface of the first end of the reinforcing column 662 may abut against the periphery of the through hole, and the second end of the reinforcing column 662 may be penetrated through the through hole of the upper cover body 433 and connected to the connecting gasket 66. Fasteners may be penetrated through the reinforcing column 662, the connecting gasket 66 and the fan. In this way, the fan and the upper cover body 433 are isolated by connecting the gasket 66 and the reinforcing column 662, and the reinforcing column 662 and the connecting gasket 66 may be made of rubber material to reduce the influence of the fan on the upper cover body 433.

[0170] Optionally, Fig.15 A three-dimensional schematic diagram of a portion of the upper cover 433 is shown, as shown in FIG. Figure 1 , Fig.11 as well as Fig.15 As shown, since the upper cover body 433 is used to connect the fan, the upper cover body 433 can be provided with a reinforcement structure to strengthen the structural strength of the upper cover body 433. Exemplarily, where the upper cover body 433 is provided with grooves and holes (such as through holes and positioning grooves), a circle of first reinforcement protrusions 4343 are provided around the periphery of the grooves and holes to improve the structural strength of the grooves and holes. The positioning grooves or multiple through holes provided on the upper cover body 433 can be concentrated in the middle of the upper cover body 433. Two adjacent first reinforcement protrusions 4343 can be connected by a fourth reinforcement protrusion 4349, and the fourth reinforcement protrusion 4349 can be provided in an arc shape.

[0171] Optionally, a second reinforcing protrusion 4344 arranged in an annular shape may be connected to the upper cover body 433. A plurality of through holes on the upper cover body 433 may be located inside the second reinforcing protrusion 4344, so as to further improve the structural strength of the slot and hole positions.

[0172] Optionally, a first radial protrusion 4345 is connected between the outer side of the first reinforcing protrusion 4343 and the inner side of the second reinforcing protrusion 4344, and the first radial protrusion 4345 can not only connect the first reinforcing protrusion 4343 and the second reinforcing protrusion 4344 together to improve the integrity of the upper cover body 433. The first radial protrusion 4345 can also be used to support the first reinforcing protrusion 4343 and the second reinforcing protrusion 4344.

[0173] Optionally, a third reinforcing protrusion 4346 arranged in an annular shape may be arranged on the outer side of the upper recess provided on the upper cover body 433 to improve the structural strength of the upper recess. In addition, a through hole or a mounting groove on the upper shell 1811 may be arranged on the upper recess to facilitate the connection between the upper cover body 433 and the fan.

[0174] Optionally, a second radial protrusion 4347 is provided between the third reinforcing protrusion 4346 and the second reinforcing protrusion 4344. The first radial protrusion 4345 and the second radial protrusion 4347 may be evenly distributed in the circumference of the second reinforcing protrusion 4344 and the third reinforcing protrusion 4346, respectively, and the second radial protrusion 4347 and the first radial protrusion 4345 may be staggered. The second radial protrusion 4347 may extend radially toward the second reinforcing protrusion 4344. It can be understood that the second radial protrusion 4347 may also connect the first reinforcing protrusion 4343 and the second reinforcing protrusion 4344 together, so as to further improve the structural strength of the upper cover body 433.

[0175] Optionally, a third radial protrusion 4348 is further provided on the upper cover body 433 , and the third radial protrusion 4348 can be connected to the third reinforcing protrusion 4346 and extend toward the outer periphery of the outer cover body, so as to improve the overall structural strength of the upper cover body 433 .

[0176] Optionally, Fig.16 Show Fig.11 In the enlarged view of F, Fig.11 and Fig.16 As shown, a capacitor starter 4334 may be provided on the upper cover 433 to help start the fan. Exemplarily, a placement cavity is provided on the upper cover 433 to limit and fix the capacitor starter 4334. The placement cavity may be defined by a plurality of placement protrusions 4335 connected to the upper cover 433. At least two placement protrusions 4335 are made of elastic material to press against the side wall of the capacitor starter 4334, thereby fixing the capacitor starter 4334. The height of the placement protrusion 4335 may be lower than the height of the capacitor starter 4334 to facilitate installation or maintenance by operators.

[0177] In addition, at least two upper ends of the placement protrusions 4335 disposed opposite to each other may be connected to a clamping block 4336, and the clamping block 4336 may extend toward the capacitor starter 4334 to limit the movement of the capacitor starter 4334 in the height direction. The opposite ends of the capacitor starter 4334 may be clamped to the two clamping blocks 4336. Exemplarily, the end of the clamping block 4336 away from the placement protrusion 4335 may have a guiding slope 1613, and from the periphery of the capacitor starter 4334 to the axial direction of the capacitor starter 4334, the guiding slope 1613 may gradually extend downward to guide the placement of the capacitor starter 4334. It is worth noting that the placement protrusion 4335 or the clamping block 4336 connected to the clamping block 4336 may have an elastic displacement along the extension direction of the clamping block 4336.

[0178] It should be noted that if Figure 1 and Fig.11As shown, the upper cover body 433 may also be provided with a plurality of reinforcing protrusions arranged in an annular shape, and any two adjacent reinforcing protrusions may be connected by a radial protrusion.

[0179] Alternatively, if Fig.15 As shown, the radial protrusions and the reinforcing protrusions arranged in an annular shape may be provided with wire grooves so that the cables for power supply and / or communication can pass through. The upper cover body 433 may also be provided with a wire fixing protrusion 4337 to fix the cables. The wire fixing protrusions 4337 may be arranged in pairs. The wire fixing protrusions 4337 may include a first end and a second end, the first end of the wire fixing protrusion 4337 may be connected to the upper cover body 433, the second end of the fixing protrusion may extend upward, and the second end of the wire fixing protrusion 4337 may be bent downward relative to the first end of the wire fixing protrusion 4337. The two opposite surfaces of the second ends of the two wire fixing protrusions 4337 are inclined, specifically, gradually inclined downward from the outer side of the fixing protrusion to the inner side of the fixing protrusion, so as to guide the cables for power supply and / or communication to be inserted between the two wire fixing protrusions 4337 from top to bottom.

[0180] In summary, under the lateral air intake mode, a possible implementation of the gas flow process is as follows: the dusty gas from the outside enters the primary filter assembly 31 from the side under the guidance of the centrifugal fan 431, and after preliminary filtration by the primary filter assembly 31, enters the water tank 11 from the air inlet of the water tank 11, and contacts with the washing liquid thrown out of the water tank 11 to obtain purified gas. The purified gas flows out of the water tank 11 from the upper end of the water tank 11, enters the impeller 4311 of the centrifugal fan 431, turns, and comes out from the first air outlet 43281 and / or the second air outlet 43283 on the air outlet cover 41.

Claims

1. An air outlet cover for installing a fan, the fan comprising an impeller and a motor, characterized in that: The air outlet cover has an air outlet, and the air outlet cover comprises: The lower cover body is provided with a central hole which is arranged through the lower cover body, at least part of the fan is located in the central hole, and there is a preset gap between the fan and the lower cover body; An upper cover body, opposite to the lower cover body and used to cover the central hole, and the motor is suspended and installed on the upper cover body; A connecting gasket, located between the upper cover and the motor, and used for vibration reduction; A positioning groove is provided at the upper end of the upper cover body, a positioning flange is connected to the connection gasket, the positioning flange extends toward the upper cover body and extends into the positioning groove, and the outer side wall of the positioning flange abuts against the groove wall of the positioning groove; The upper cover body is provided with a capacitor starter, and the capacitor starter is used to help start the fan; the upper cover body is connected with a placement protrusion extending in a direction away from the fan, and at least two placement protrusions are provided, and the plurality of placement protrusions and the upper cover body define a placement cavity, and the placement cavity is used to limit the position of the capacitor starter; At least two of the placement protrusions that are arranged opposite to each other are elastically arranged, and the capacitor starter is interference-fitted in the placement cavity; The upper ends of at least two of the placement protrusions that are arranged opposite to each other are each connected to a clamping block, the clamping block extends toward the direction of the capacitor starter, the opposite ends of the capacitor starter are clamped to the two clamping blocks, and the placement protrusion or the clamping block connected to the clamping block has elastic displacement along the extension direction of the clamping block; The upper cover body is provided with a through hole, the connection gasket is connected with an elastically arranged reinforcing column, the reinforcing column passes through the through hole and abuts against the upper cover body, and a fastener passes through the reinforcing column, the connection gasket is connected with the motor.

2. The air outlet cover according to claim 1, characterized in that: The upper cover body is connected with a reinforcing protrusion and a radial protrusion. The reinforcing protrusion is arranged in a ring shape, the radial protrusion is arranged along the radial direction of the upper cover body, and the reinforcing protrusion intersects with the radial protrusion.

3. The air outlet cover according to claim 1, characterized in that: The upper cover body includes an upper cover plate on which a fan is suspended, the upper end of the lower cover body is connected to a lower cover plate, the lower cover plate extends toward the outside of the lower cover body, at least part of the upper cover plate abuts against the lower cover plate, and a fastener passes through the upper cover plate and is connected to the lower cover plate.

4. The air outlet cover according to claim 1, characterized in that: The upper cover body is provided with paired wire fixing protrusions, the paired wire fixing protrusions are connected to the upper cover body and extend in a direction away from the fan, and power supply and / or communication cables are clamped between the paired wire fixing protrusions.

5. An air purification device, comprising a water tank and a fan, characterized in that: It also includes the air outlet cover as described in any one of claims 1 to 4, the top of the water tank is open, and the air outlet cover is used to cover the top opening of the water tank.

6. The air purification device according to claim 5, characterized in that: The lower cover body is sleeved on the top outer side wall of the water tank, and a vibration-damping pad is arranged between the top outer side wall of the water tank and the inner wall of the lower cover body.

Images