CN115247819A

CN115247819A - Fume exhaust fan

Info

Publication number: CN115247819A
Application number: CN202210700040.1A
Authority: CN
Inventors: 张岩; 梁雪斐; 王发银; 韩国强
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-10-28

Abstract

The invention discloses a range hood, which comprises a shell, a lower panel and a cleaning device, wherein the lower panel is arranged on the front side of the shell, the cleaning device comprises a water box assembly, the water box assembly is hidden in the shell and is covered by the lower panel, the water box assembly comprises a fixed frame fixedly arranged in the shell and a water box capable of sliding relative to the fixed frame, and a cleaning medium is stored in the water box; when the lower panel is closed relative to the shell, the water box is located at a first position, and the first position is a use position during cleaning; when the lower panel is opened relative to the shell, the water box can slide forwards to a second position relative to the fixed frame, and the second position is a position where a cleaning medium can be added; the cleaning device also comprises a water sucking disc component which is arranged in the water box, and the water sucking disc component sucks the cleaning medium in the water box so as to supply the cleaning medium to the object to be cleaned.

Description

Fume exhaust fan

Technical Field

The invention relates to an oil fume purification device, in particular to a range hood.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

With the continuous progress of the self-cleaning technology of the range hood, steam cleaning or water cleaning is widely applied to the field of self-cleaning of the range hood, and the basic principle is that a steam generator generates steam or water is pumped by a water pump to convey the steam or water to a nozzle at the tail end of a spray pipe, and the steam or water is quickly sprayed out from the nozzle to flush an impeller and a volute for cleaning.

The water box used for supplying water for the steam generator or the water pump generally has three mounting modes, one mode is that the water box is divided into two areas, clear water and waste water, when the water box is cleaned, the oil cup is taken down, then the water box is hung at the position of the original oil cup, when the water box is mounted, the water box needs to be taken by double water and then hung on a hook, the matched water taking structure realizes the butt joint of a water taking pipe in the water box and a built-in joint of a smoke machine through rubber interference, and the water box taking experience is poor; the other is that a water cup and a connecting hose are separately arranged, when in use, the water cup needs to be added with water, the hose is connected to the range hood, and after the range hood is cleaned, the water cup and the hose are collected; and the other method is to utilize two silica gels, and when the water cup is installed, the sealing is realized through the interference of the two silica gels.

Although cold water can be heated quickly by using the heating module, the complex pipeline system and scale generated in the heating process have the risk of blocking the nozzle, so that the failure rate of the self-cleaning system is increased, and the cost is high; the water box is arranged externally, the water box needs to be found when the water box is used again, the risk of loss exists, the disassembly experience is poor, and the air leakage condition (water cannot be absorbed) exists when the connector interference rubber is used (worn) for a long time; in the mode of a single water cup, the interface of the range hood is positioned in the leaked hole when not used, so that the range hood is extremely easy to pollute in the oil smoke environment of a kitchen, is easy to age after a long time, has reduced elasticity, reduces interference, and has the risk of air leakage and the like; through two silica gel interference fit's mode, feel relatively poor during the installation, need both ends of two hands holding the water box, press hard and can realize the butt joint.

For this reason, further improvements are desired.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a range hood aiming at the defects of the prior art, wherein a water box is arranged in the range hood, so that the range hood is convenient to connect, add and supply cleaning media.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a range hood, includes the casing, sets up panel and belt cleaning device under casing front side, belt cleaning device includes water box subassembly, its characterized in that:

the water box assembly is hidden in the shell and covered by the lower panel, the water box assembly comprises a fixed frame fixedly arranged in the shell and a water box capable of sliding relative to the fixed frame, and a cleaning medium is stored in the water box;

when the lower panel is closed relative to the shell, the water box is located at a first position, and the first position is a use position during cleaning;

when the lower panel is opened relative to the shell, the water box can slide forwards to a second position relative to the fixed frame, and the second position is a position where a cleaning medium can be added;

the cleaning device also comprises a water sucking disc component which is arranged in the water box, and the water sucking disc component sucks the cleaning medium in the water box so as to supply the cleaning medium to the object to be cleaned.

Preferably, for the linkage of water box and lower panel, the lower tip and the casing of panel rotate to be connected down, the upper end and the casing of panel can be dismantled down and be connected, be connected with the elastic component between water box and the lower panel, and make the water box can slide along with the lower panel when the panel is opened down.

Preferably, in order to facilitate the water box to be linked with the lower panel when the cleaning medium is insufficient, the lower end part of the lower panel is rotatably connected with the shell, the upper end part of the lower panel is detachably connected with the shell, an elastic part is connected between the water box assembly and the lower panel, when the amount of the cleaning medium stored in the water box is not more than a preset value, the water box is opened along with the lower panel by the tensile force of the elastic part by overcoming the frictional force with the fixing frame, and when the amount of the cleaning medium stored in the water box is more than the preset value, the frictional force of the water box and the fixing frame is more than the tensile force of the elastic part and is kept at the first position when the lower panel is opened.

Furthermore, in order to facilitate the resetting of the water box, the cleaning device further comprises a movement mechanism for returning the water box from the second position to the first position, the movement mechanism comprises a fixed bracket fixed in the shell, a first connecting rod rotatably connected with the fixed bracket, a second connecting rod rotatably connected with the first connecting rod and a push rod fixedly connected with the first connecting rod, the rotation axes of the first connecting rod and the second connecting rod are both parallel to the rotation axis of the lower panel, and the push rod extends towards the direction of the lower panel and can act with the lower panel; the moving mechanism further comprises a water box pulling baffle arranged at the end part of the second connecting rod, and the water box pulling baffle is positioned on the front side of the downward panel of the water box, so that the water box can be pushed to slide backwards.

In order to enable the movement mechanism to pop out when the lower panel is opened and avoid interference with the water box, one end of the first connecting rod is rotatably connected with the fixed support through a first connecting rod shaft, a first torsion spring is arranged on the first connecting rod shaft, one end of the first torsion spring is abutted against the first connecting rod, and the other end of the first torsion spring is abutted against the fixed support;

one end of the second connecting rod is rotatably connected with the part between the two ends of the first connecting rod through a second connecting rod shaft, a second torsion spring is arranged on the second connecting rod shaft, one end of the second torsion spring is abutted against the second connecting rod, and the other end of the second torsion spring is abutted against the first connecting rod;

thereby maintaining a tendency for the push rod and the water bucket pull baffle to push out in the direction of the lower panel.

In order to ensure that the water box moves stably, the moving mechanism further comprises a second limiting block which is arranged on the first connecting rod and used for limiting the downward rotating position of the second connecting rod.

For acting on the push rod better, avoid the push rod to skid, one side of lower panel in towards the casing is provided with the cushion of contradicting with the push rod.

For the convenience of water box and mount sliding connection, the water box subassembly still includes water box card frame, the water box is the open shape in upper end, the mount is located the top of water box, water box card frame is annular and the joint in the upper end of water box, water box card frame and mount sliding connection for water box card frame and water box can slide around the relative mount.

For avoiding the water box to open excessively and break away from with the mount, both ends are provided with first stopper around the mount, the top of water box card frame is provided with the support, wear to be equipped with the guide bar on the support, the guide bar extends in the front and back direction, the both ends of guide bar are connected to first stopper respectively, the support is located between two first stoppers.

In order to prompt the user of the amount of the added cleaning medium, a pressure sensor capable of detecting the liquid level in the water box is arranged at the position where the water box clamping frame and the water box are clamped, and an indicating lamp capable of indicating the liquid level is arranged on the water box clamping frame.

In order to facilitate the water sucking disc assembly to be taken out when the water box is opened, the cleaning device further comprises a water pump, the water sucking disc assembly comprises a water sucking disc shell and a hose, the water sucking disc shell is supported at the bottom of the water box, the upper end of the hose extends out of the water box and supplies a cleaning medium to the water pump through a water inlet pipe, a water sucking channel is formed in the water sucking disc shell, the upper end of the water sucking channel is communicated with the lower end of the hose in a fluid mode, and the lower end of the water sucking channel is communicated with the fluid in the water box.

The range hood is characterized in that the range hood can be adsorbed on other parts of the range hood when the water sucking disc assembly is taken out conveniently, impurities are adsorbed and a counterweight is played when the range hood is used, the water sucking disc assembly further comprises a magnet, and the magnet is arranged on the water sucking disc shell.

In order to facilitate the water absorption disc shell to be placed at the bottom in the water box, the sectional area of the lower end of the water absorption disc shell is larger than that of the upper end of the water absorption disc shell, and the magnet is arranged at the lower end of the water absorption disc shell.

For avoiding the impurity jam nozzle of cleaning medium, the subassembly that absorbs water still includes filter screen and filter screen fixation washer, be provided with the filter screen in the passageway that absorbs water, filter screen fixation washer passes the passageway that absorbs water and fixes the filter screen.

For the convenience of sucking cleaning media into the water sucking channel, the bottom of the water sucking disc shell is in an upwards concave shape, the outer peripheral wall of the water sucking disc shell is supported on the bottom surface in the water box, holes are formed in the outer peripheral wall of the water sucking disc shell, and the cleaning media in the water box are sucked into the water sucking channel through the holes.

In order to facilitate the prompt of the temperature of the added cleaning medium, a temperature sensor for detecting the temperature of the cleaning medium in the water box is arranged on the water absorption disc shell, and an indicator lamp capable of indicating the temperature of the cleaning medium of the water box is arranged on the water box component.

Preferably, the lower panel is connected with the shell through a connecting structure, the connecting structure comprises a supporting arm, a shaft and a snap fastener, the shaft is arranged in the shell, the bottom of the supporting arm is rotatably connected with the shell through the shaft, and the supporting arm is fixed with the lower part of the lower panel; the upper portion and the casing of panel can be dismantled and be connected to primary and secondary buckle messenger.

In order to provide suitable damping when the lower panel is operated and improve the operation and feel, the connecting structure further comprises a third connecting rod and a fourth connecting rod, the third connecting rod is rotatably connected with the lower panel, one end of the fourth connecting rod is rotatably connected in the shell, the other end of the fourth connecting rod is rotatably connected with the position between the two ends of the third connecting rod, the rotating axes of the third connecting rod and the fourth connecting rod are parallel to the shaft, and the third connecting rod and the fourth connecting rod are connected through a damping nut.

In order to avoid the lower panel from being excessively opened, a bending part is formed at the end part, far away from the lower panel, of the third connecting rod, and the bending part is positioned behind the fourth connecting rod.

Compared with the prior art, the invention has the advantages that: the water sucking disc assembly is arranged, so that the position of the water box can be changed conveniently, the water box is not required to be repeatedly connected with a water inlet pipeline when being arranged in the water box, a heating module is not required, a user directly heats water when using the water self-cleaning system, and the fault rate and the cost of the self-cleaning system are reduced; moreover, the water box is arranged inside, so that the trouble of losing is avoided; the liquid level reminding is arranged, so that whether the requirement is met can be visually judged when a cleaning medium is added; the temperature reminding is arranged, so that the temperature can be better controlled when a cleaning medium is added, and the cleaning efficiency is improved; the water sucking disc assembly is provided with the magnetic suction type shell, can suck the bottom in the water box, and can be adsorbed on the shell of the range hood at will when the water box is opened, so that the range hood is more convenient.

Drawings

Fig. 1 is a schematic view of a range hood according to an embodiment of the present invention (a lower panel is opened when a water box is in a water state);

FIG. 2 is an enlarged view of a portion I of FIG. 1;

fig. 3 is a schematic view of a lower panel of the range hood and a connecting structure between the lower panel and the housing according to the embodiment of the invention;

FIG. 4 is a schematic view of a water box assembly, a moving mechanism, an elastic member and a water inlet pipe of the cleaning device of the extractor hood of FIG. 1;

fig. 5 is a partial schematic view of a movement mechanism of a cleaning device of a range hood according to an embodiment of the invention;

fig. 6 is a schematic view of a water box assembly of a cleaning device of a range hood according to an embodiment of the invention;

fig. 7 is an exploded schematic view of a water box assembly of a cleaning device of a range hood according to an embodiment of the invention;

FIG. 8 is an enlarged view of portion II of FIG. 7;

FIG. 9 is a cross-sectional view of the water box assembly of FIG. 6;

FIG. 10 is an enlarged schematic view of a portion III of FIG. 9;

FIG. 11 is a schematic view of a water absorbing tray of a water box assembly of the cleaning apparatus according to the embodiment of the present invention;

fig. 12 is a schematic view of the range hood according to the embodiment of the present invention (the lower panel is opened when the water box is not in water);

fig. 13 is a schematic view of a range hood according to an embodiment of the present invention (with the lower panel closed);

fig. 14 is a partial sectional view of a range hood according to an embodiment of the present invention (with the lower panel closed).

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration only and are not to be construed as limiting, for example, "upper" and "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1, a range hood, which is a side-draft range hood, includes a housing 1 and a fan system (not shown) disposed above the housing 1. The range hood also comprises a cleaning device which is mainly used for cleaning the fan system and can also clean the inner cavity or other components of the range hood.

The washing device includes a water bucket assembly 21 and a moving mechanism 22 for moving the water bucket assembly 21. In the present embodiment, the water box assembly 21 is disposed at the lower part in the housing 1, and for convenience of illustration, the drawings of the specification refer to the structural drawing of the whole machine, and a panel or a smoke barrier of the housing 1 at a position above the water box assembly 21 is not shown. The front side of the case 1 is provided with a lower panel 3, and the lower panel 3 is also located at the front side of the water bucket assembly 21.

Since the water box assembly 21 is disposed at the lower portion of the housing 1 and hidden at the rear side of the lower panel 3, the lower panel 3 needs to be opened first when the water box assembly 21 is filled with water or cleaned. For this purpose, the lower portion of the lower panel 3 is rotatably connected to the housing 1, and the upper portion is detachably connected to the housing 1, such as by snapping, magnetic attraction, etc., so that the lower panel 3 can be opened by rotating the upper end forward. Referring to fig. 1 to 3, the connecting structure of the lower panel 3 and the casing 1 includes a lower panel bracket 31, a support arm 32, a third link 33 and a fourth link 34, the lower panel bracket 31 is disposed on a surface of the lower panel 3 facing the inside of the casing 1, and the lower panel bracket 31 may have two blocks arranged at a left-right interval and may be fixed to the lower panel 3 by means of an adhesive. The lower panel bracket 31 is connected to a support arm 32 and a third link 33, respectively, and the connection position of the support arm 32 is lower than that of the third link 33. The supporting arm 32 is fixedly connected with the lower panel bracket 31, a shaft 35 is arranged at the bottom in the shell 1, the bottom of the supporting arm 32 is sleeved on the shaft 35 and can rotate relative to the shaft 35, and therefore the lower panel 3 can rotate around the shaft 35 at the bottom of the supporting arm 32. Alternatively, it is also possible to provide that the shaft 35 is rotatably connected to the housing 1, and the support arm 32 is fixed to the shaft 35, as long as the support arm 32 is rotatable with respect to the housing 1, and the rotation axis of the support arm 32 extends in the left-right direction.

The third link 33 is rotatably connected to the lower panel bracket 31, one end of the fourth link 34 is rotatably connected to the inside of the housing 1, and the other end is rotatably connected to a position between both ends of the third link 33, and the rotational axes of the third link 33 and the fourth link 34 extend in the left-right direction. The rotation axes of the lower panel 3, the third link 33 and the fourth link 34 are parallel. The third link 33 and the fourth link 34 may be connected by a damping nut 36. A bent portion 331 is formed at an end portion of the third link 33 away from the lower panel bracket 31, and the bent portion 331 is located behind the fourth link 34.

The connecting structure further comprises a female buckle 37 and a male buckle 38 for connecting the upper part of the lower panel 3 with the housing 1, wherein the female buckle 37 is fixed in the housing 1, and the male buckle 38 is fixed on the side of the lower panel 3 facing the inside of the housing 1 and is close to the upper end part of the lower panel 3. The upper end of the lower panel 3 is engaged with the housing 1 by the engagement of the female latch 37 and the male latch 38. The positions of the female snaps 37 and the male snaps 38 may be interchanged.

The third connecting rod 33 and the fourth connecting rod 34 play a role in damping and limiting the opening process of the lower panel 3, after the lower panel 3 rotates forward and is opened to a certain angle, the bending part 331 of the third connecting rod 33 contacts with the fourth connecting rod 34 to prevent the lower panel 3 from being opened continuously to a large angle, and the angle is sufficient for taking and placing the water box assembly 21 and an oil cup (not shown, located below the water box assembly 21 and at the bottom in the housing 1), and cannot interfere with a high-rise pan of the cooking bench. When the lower panel 3 needs to be closed, the lower panel 3 is pushed to rotate inwards. When the closed state is reached, the sub-latch 38 on the lower panel 3 will latch with the female latch 37 on the housing 1, so as to achieve tight closure.

Referring to fig. 4 to 11, the water box assembly 21 includes a water box 211, a fixing frame 212, a first limiting block 213, and a water box clamping frame 214, and the water box 211 is used for storing cleaning media, such as water or cleaning agent, etc., which is described in this embodiment by taking water as an example. Other structures of the cleaning device, such as a water pump, a nozzle, etc., the nozzle sprays the cleaning medium onto the object to be cleaned for cleaning, which can be the same as the prior art and are not described herein again. When the cleaning device is used for self-cleaning, a user can directly add hot water into the water box assembly 21, so that a heating module is omitted, the failure rate and the cost can be reduced, and the risk caused by the fact that water scales block the nozzle and the heating module is avoided.

The water box 211 is in a shape with an open upper end, and the fixing frame 212 is located above the water box 211 and is installed on an inner cavity of the range hood, such as the housing 1 of this embodiment. The front end and the rear end of the fixing frame 212 are provided with the first limiting blocks 213, the first limiting blocks 213 can play a role in supporting and limiting, the water box 211 is prevented from being pushed out forwards too much, the water box 211 is prevented from falling off, and the pushing-out and resetting modes of the water box 211 are described in detail below.

The water box clamping frame 214 is arranged at the upper end part of the water box 211, and the water box clamping frame 214 is annular so as to prevent the opening of the water box 211 from being shielded. The water box 211 is formed with draw-in groove 2111 on being close to the periphery wall of upper end portion, and draw-in groove 2111 is formed by the inside sunken of the periphery wall of the left and right sides and the rear side of water box 211, and water box card frame 214 passes through draw-in groove 2111 block with water box 211 to water box card frame 214 is fixed with water box 211.

The top of water box card frame 214 is provided with support 215, wears to be equipped with guide bar 216 on the support 215, and guide bar 216 extends in the front and back direction, and the both ends of guide bar 216 are connected to first stopper 213 respectively, and support 215 is located between two first stoppers 213. Sliding grooves 2121 are formed at the left and right sides of the inner peripheral wall of the fixing frame 212, and the outer edge of the water box clamping frame 214 is slidably connected with the sliding grooves 2121, so that the water box clamping frame 214 and the water box 211 can slide back and forth relative to the fixing frame 212 within a preset range.

In the present invention, the water box 211 is not usually set up to be taken out when in use, and a user can add water directly into the water box 211, because if water is to be added into the water box 211, if the water box 211 needs to be pushed manually after the water is added, there is a risk of scalding. Therefore, the water bucket assembly 21 is preferably interlocked with the lower panel 3, and in the present embodiment, in order to provide the elastic member 23 between the lower panel 3 and the water bucket assembly 21, the elastic member 23 is preferably a tension spring. The water box clip 214 of the water box assembly 21 is provided with a fixing ring 216, one end of the elastic member 23 is fixed to the fixing ring 216, and the other end is fixed to the side of the lower panel 3 facing the housing 1.

When the lower panel 3 is opened (the oil containing condition of the oil cup can be observed, waste oil in the oil cup can be poured, or whether the water box has water or not can be observed), if the amount of water in the water box 211 is large (not less than the amount for completing one self-cleaning, and the amount for completing one self-cleaning is set as a preset value), the friction force between the water box clamping frame 214 and the sliding groove 2121 of the fixing frame 212 is larger than the pulling force of the elastic element 23 due to the large friction force generated by gravity, and the water box clamping frame 214 cannot be pulled out of the fixing frame 212 by the elastic element 23. That is, the water tank 211 has enough water therein, and the lower panel 3 is opened, referring to fig. 1 and 2, the water tank 211 is not pulled out, and is in the first position, which is the use position during washing; if the water in the water box 211 is less (not enough to perform a self-cleaning operation), the friction between the water box holder 214 and the slide groove 2121 of the fixing frame 212 is less than the pulling force of the elastic member 23, and the water box 211 is pulled out to be in the second position, and the cleaning medium can be added, as shown in fig. 12. The elastic force of the elastic member 23 may be adjusted in advance according to the above requirements.

After the water box 211 is pulled out and water is added, the water box 211 and the lower panel 3 can be linked through the motion mechanism 22. Referring to fig. 2, 4 and 5, the moving mechanism 22 includes a fixing bracket 221 fixed in the housing 1, a first connecting rod 222 rotatably connected to the fixing bracket 221, a second connecting rod 223 rotatably connected to the first connecting rod 222, a second stopper 224 disposed on the first connecting rod 222, and a push rod 225 fixedly connected to the first connecting rod 222. The rotational axes of the first link 222 and the second link 223 each extend in the left-right direction, parallel to the rotational axis of the lower panel 3. One end of the first link 222 is rotatably connected to the fixed bracket 221 through a first link shaft 226, the first link shaft 226 is provided with a first torsion spring 227, one end of the first torsion spring 227 abuts against the first link 222, and the other end abuts against the fixed bracket 221. One end of the second link 223 is rotatably connected to the two ends of the first link 222 through a second link shaft 228, a second torsion spring 229 is disposed on the second link shaft 228, one end of the second torsion spring 229 abuts against the second link 223, and the other end abuts against the first link 222. The push rod 225 extends from the end of the first link 222 in the direction of the lower panel 3.

The above-mentioned components of the moving mechanism 22 have two sets, which are respectively disposed at the left and right sides of the water bucket 211, and a water bucket pulling barrier 230 is connected between the other ends of the two second links 223, which is located at the front side of the water bucket 211.

Lower panel 3 is provided with cushion 39 towards one side in the casing 1, like the silica gel pad, along with panel 3 is rotatory towards casing 1 down (anticlockwise as shown in fig. 13), cushion 39 on lower panel 3 can be earlier with two push rods 225 contacts about with, push rod 225 can drive first connecting rod 222 clockwise rotation, drives second connecting rod 223 to the inboard motion of casing 1 simultaneously, draws baffle 230 through the water box and drives water box 221 and to the inboard motion of casing 1. In order to prevent the dead weight of the water box pulling baffle 230 and the second connecting rod 223 from causing the contact position of the water box pulling baffle 230 and the water box 221 to be too downward, so that the inward movement of the water box 221 is affected by uneven stress, a second limiting block 224 is arranged to limit the lower limit position of the connection end of the second connecting rod 223 and the water box pulling baffle 230 in the rotating process, so as to ensure that the contact position of the water box pulling baffle 230 and the water box 211 is moderate, and the second torsion spring 229 causes the second connecting rod 223 to drive the water box pulling baffle 230 to have an upward trend so as to ensure that the contact position with the water box 211 is upward, so that the water box 211 is pushed to move inward until being closed, and referring to fig. 13 and 14, the water box 211 is in the first position.

When the lower panel 3 is opened, the first torsion spring 227 between the first link 222 and the fixing bracket 221 drives the whole mechanism to pop out, so that the push rod 225 and the water box pulling baffle 230 are both forward, and the movement of the water box pulling baffle 230 can avoid blocking the water box 211 from being pulled out, as shown in fig. 1. When the lower panel 3 is closed, the snap fasteners on the lower panel 3 and the shell 1 are locked together, so that the safety is ensured.

The technical scheme of the linkage does not need an electric tool, and has strong reliability, low cost and safety. Alternatively, the lower panel 3 may be driven to rotate by an electric drive mechanism.

Referring to fig. 7 to 11 again, a pressure sensor 217 is disposed at the front end of the water box clamping frame 214, and the pressure sensor 217 is located at the clamping position of the water box clamping frame 214 and the water box 211. The water level in the water box 211 is judged by the pressure sensing value of the pressure sensor 217, and the more the water box 211 and the water stored therein, the larger the force applied at the position where the water box 211 and the water box clamping frame 214 are clamped, and the force can be sensed by the pressure sensor 217. When the water box 211 needs to be taken out from the inside of the shell 1, the water box 211 is pushed against the water box clamping frame 214 by hand, and then the water box 211 can be pulled out from the position of the water box clamping frame 214 by force.

The cleaning device further comprises a water sucking disc assembly 24 arranged in the water box 21 and comprising a water sucking disc shell 241, a filter screen 242, a filter screen fixing gasket 243, a magnet 244 and a temperature sensor 245, wherein the upper end of the water sucking disc shell 241 is connected with a hose 246, the upper end of the hose 246 extends out of the water box 211 and is connected with a water inlet pipe 4 (only part of the water inlet pipe 4 is shown in the drawing of the specification), and the water sucking disc assembly is used for supplying water to the water pump and sucking water by using the negative pressure of the water pump. Through the arrangement of the hose 246, the water box 211 can be pushed out and returned to the original position without affecting the water sucking disc assembly 24.

The sectional area of the lower end of the suction tray case 241 is larger than that of the upper end. A water suction passage 2411 is formed in the water suction tray housing 241 and penetrates through the upper and lower end surfaces of the water suction tray housing 241, the upper end of the water suction passage 2411 is communicated with the lower end of the hose 246, and a filter screen 242 is disposed at the communication position. The screen fixing washer 243 passes through the water suction passage 2411, and is screw-coupled to the water suction tray housing 241. The filter screen 242 is fixed in the upper end of filter screen fixing gasket 243, the lower extreme of filter screen fixing gasket 243 wears out the passageway 2411 that absorbs water, magnet 244 cover is established at filter screen fixing gasket 243 and is extended the periphery of the passageway 2411 part that absorbs water, it has three effects, one is the impurity iron fillings that adsorb quality of water, another is when taking off the water box, can inhale water dish subassembly 24 on range hood's casing 1 at will, another is after installation water box 211, magnet 244 can play certain counter weight effect, and can adsorb the bottom in water box 211, guarantee like this to inhale the water of water box 211 bottommost. The outer peripheral wall of the suction tray case 241 is lower than the lower end of the screen fixing screen 243, that is, the bottom of the suction tray case 241 is formed in an upwardly concave shape. The outer circumferential wall of the suction tray case 241 is supported on the bottom surface inside the water box 211, and water inside the water box 211 enters from the lower end portion of the screen fixing washer 243, passes through the water suction passage 2141 and the screen 242, and enters the hose 246. The outer peripheral wall of the suction tray housing 241 is provided with a plurality of holes 2412, and preferably, the holes 2412 are uniformly arranged in the circumferential direction. The position of the hole 2412 is preferably not higher than the lower end portion of the water absorption passage 2411. Therefore, water in the water box 211 can be sucked through the holes 2412, large impurities can be filtered, the filter screen 242 can filter small impurities, and when the filter screen 242 is blocked, the filter screen 242 can be taken out for cleaning by unscrewing the filter screen fixing washer 243.

When wanting to take out water box 211, the one-hand operation, adsorb water absorption dish subassembly 24 on range hood's any metal surface, when needs use water box 211 normal water, water absorption dish subassembly 24 can place by the one hand, because the water absorption dish lower extreme is big, and the upper end is little, it can directly place in water box 211 bottom to water absorption dish subassembly 24 has magnet 244, and close contact can be realized with water box 211 (water box 211 is made by iron etc. can be by the metal material of magnet 244 absorption) bottom to water absorption dish casing 241, has guaranteed the reliability of absorbing water.

Since the water is poured into the water box 211, the water temperature is not easy to be controlled, and the water level is not easy to be clearly seen when looking down, three indicator lamps 218 are further provided at the top of the water box holder 214 to indicate different colors, such as blue, green and red, respectively. Three indicator lights 218 are provided on the left side of the cartridge holder, wherein the indicator lights 218 flash to represent the temperature at the time inside the cartridge. The impeller that washs fan system needs the water of uniform temperature to erode just effective fruit, the temperature is low excessively, after using the blade, the grease can' T melt, the temperature too high can exert an influence to the valve block of pump, harm life, so watered temperature is also more important, according to the temperature that the grease melting needs on the blade and combine the maximum temperature that the water pump valve block can bear, define the temperature of adding water of water box, can melt easy abluent minimum temperature for T1 if the blade, the pump valve can bear the highest temperature for T2, then the temperature T who detects when temperature sensor 245 is: t1 < T2, at which time the temperature shows a suitable temperature, the indicator light 218 flashes green, meaning that the temperature is suitable; t is greater than or equal to T2, the indicator light 218 flashes red, which means that the temperature is too high; t1 is larger than or equal to T, the indicator lamp 218 flashes in blue, which means that the temperature is too low, and the value of T1 can be measured according to test data.

The indicator lamp 218 is normally on to represent the high-low state of the water level, so the indication of the indicator lamp 218 is totally 9 cases:

if the red light flickers and the blue light is on, the water temperature is over high at this moment, the water level in the water box 211 is at a low level, and at this moment, a user needs to add some cold water into the water box 211 to enable the blue light to flick; if the red light flickers, the green light lights, at this moment, the water temperature is over high, the water level in the water box 211 is at the middle position, and at this moment, a user needs to add some cold water into the water box 211, so that the blue light flickers.

If the green light flickers and the red light is on, the water temperature is proper at this moment, the water level in the water box 211 is at a high level, at this moment, a user needs to stop adding water, the water box 211 is reset, and self-cleaning can be carried out after the lower panel 3 is closed. If the green light is flashing and the blue light is on, the water temperature is proper, the water level in the water box 211 is at a low level, and water needs to be added continuously.

If the blue light flickers and the green light is on, the water temperature is lower at the moment, the water level in the water box 211 is at the middle position, and at the moment, a user needs to add some hot water to wait for the green light to flick; if the blue light twinkles, the red light is bright, and it is lower to explain this moment that the temperature is lower, and the water level in water box 211 is in the high level, and the user need stop adding water this moment, and the water pump can start to spout certain clear water and wash the impeller, then the user need add some hot water, waits for the green light to twinkle.

In the above embodiments, the range hood is in a side-suction type, and the cleaning device of the present invention and the lower panel 3 can be used in other forms, such as a top-suction type range hood, and the housing 1 can be a fan frame or other components of the range hood. It is only necessary that the housing 1 forms an inner cavity in order to accommodate the cleaning device.

Claims

1. The utility model provides a range hood, includes casing (1), sets up panel (3) and belt cleaning device under casing (1) front side, belt cleaning device includes water box subassembly (21), its characterized in that:

the water box assembly (21) is hidden in the shell (1) and is covered by the lower panel (3), the water box assembly (21) comprises a fixed frame (212) fixedly arranged in the shell (1) and a water box (211) capable of sliding relative to the fixed frame (212), and a cleaning medium is stored in the water box (211);

when the lower panel (3) is closed relative to the shell (1), the water box (211) is at a first position, and the first position is a use position during cleaning;

when the lower panel (3) is opened relative to the shell (1), the water box (211) can slide forwards to a second position relative to the fixed frame (212), and the second position is a position where a cleaning medium can be added;

the cleaning device also comprises a water sucking disc component (24) arranged in the water box (211), and the water sucking disc component (24) sucks the cleaning medium in the water box (211) and can supply the cleaning medium to the object to be cleaned.

2. The range hood of claim 1, wherein: the lower end of the lower panel (3) is rotatably connected with the shell (1), the upper end of the lower panel (3) is detachably connected with the shell (1), and an elastic piece (23) is connected between the water box (211) and the lower panel (3) so that the water box (211) can slide along with the lower panel (3) when the lower panel (3) is opened.

3. The range hood of claim 1, wherein: the lower end of the lower panel (3) is rotatably connected with the shell (1), the upper end of the lower panel (3) is detachably connected with the shell (1), an elastic part (23) is connected between the water box assembly (21) and the lower panel (3), when the quantity of cleaning media stored in the water box (211) is not more than a preset value, the water box (211) is opened along with the lower panel (3) by the aid of tensile force of the elastic part (23) so as to overcome friction force between the water box (211) and the fixing frame (212), and when the quantity of the cleaning media stored in the water box (211) is more than the preset value, the friction force between the water box (211) and the fixing frame (212) is more than the tensile force of the elastic part (23) and is kept at a first position when the lower panel (3) is opened.

4. A range hood according to claim 2 or 3, wherein: the cleaning device further comprises a moving mechanism (22) used for enabling the water box (211) to return to the first position from the second position, wherein the moving mechanism (22) comprises a fixed support (221) fixed in the shell (1), a first connecting rod (222) rotatably connected with the fixed support (221), a second connecting rod (223) rotatably connected with the first connecting rod (222) and a push rod (225) fixedly connected with the first connecting rod (222), the rotating axes of the first connecting rod (222) and the second connecting rod (223) are parallel to the rotating axis of the lower panel (3), and the push rod (225) extends towards the lower panel (3) to act with the lower panel (3); the movement mechanism (22) further comprises a water box pulling baffle (230) arranged at the end part of the second connecting rod (223), and the water box pulling baffle (230) is positioned at the front side of the water box (211) facing the lower panel (3) so as to push the water box (211) to slide backwards.

5. The range hood of claim 4, wherein: one end of the first connecting rod (222) is rotatably connected with the fixed bracket (221) through a first connecting rod shaft (226), a first torsion spring (227) is arranged on the first connecting rod shaft (226), one end of the first torsion spring (227) is abutted against the first connecting rod (222), and the other end of the first torsion spring (227) is abutted against the fixed bracket (221);

one end of the second connecting rod (223) is rotatably connected with the part between the two ends of the first connecting rod (222) through a second connecting rod shaft (228), a second torsion spring (229) is arranged on the second connecting rod shaft (228), one end of the second torsion spring (229) is abutted against the second connecting rod (223), and the other end of the second torsion spring (229) is abutted against the first connecting rod (222);

thereby maintaining the tendency of pushing the push rod (225) and the water box pull baffle (230) out in the direction of the lower panel (3).

6. The range hood of claim 4, wherein: the motion mechanism (22) further comprises a second limiting block (224) which is arranged on the first connecting rod (222) and used for limiting the downward rotating position of the second connecting rod (223).

7. The range hood of claim 4, wherein: one side of the lower panel (3) facing the inside of the shell (1) is provided with a soft cushion (39) which is propped against the push rod (225).

8. The range hood of claim 1, wherein: the water box subassembly (21) still includes water box card frame (214), water box (211) are the open shape in upper end, mount (212) are located the top of water box (211), water box card frame (214) are annular and joint in the upper end of water box (211), water box card frame (214) and mount (212) sliding connection for water box card frame (214) and water box (211) can be relative mount (212) fore-and-aft slip.

9. The range hood of claim 8, wherein: the utility model discloses a water box clamp frame, including mount (212), water box clamp frame (214), guide bar (216) and support (215), the front and back both ends of mount (212) are provided with first stopper (213), the top of water box clamp frame (214) is provided with support (215), wear to be equipped with on support (215), guide bar (216) extend in the front and back direction, the both ends of guide bar (216) are connected to first stopper (213) respectively, support (215) are located between two first stoppers (213).

10. The range hood of claim 8, wherein: the position of water box card frame (214) and water box (211) joint is provided with pressure sensor (217) that can detect the interior liquid level of water box (211), be provided with pilot lamp (218) that can instruct the liquid level on water box card frame (214).

11. The range hood of claim 1, wherein: the cleaning device further comprises a water pump, the water sucking disc assembly (24) comprises a water sucking disc shell (241) and a hose (246), the water sucking disc shell (241) is supported at the bottom of the water box (211), the upper end of the hose (246) extends out of the water box (211) and supplies cleaning media to the water pump through a water inlet pipe (4), a water sucking channel (2411) is formed in the water sucking disc shell (241), the upper end of the water sucking channel (2411) is communicated with the lower end of the hose (246) in a fluid mode, and the lower end of the water sucking channel (2411) is communicated with the fluid in the water box (211).

12. The range hood of claim 11, wherein: the puck assembly (24) further includes a magnet (244), the magnet (244) being disposed on the puck housing (241).

13. The range hood of claim 12, wherein: the sectional area of the lower end of the water absorption disc shell (241) is larger than that of the upper end, and the magnet (244) is arranged at the lower end of the water absorption disc shell (241).

14. The range hood of claim 11, wherein: the water absorption disc assembly (24) further comprises a filter screen (242) and a filter screen fixing gasket (243), the filter screen (242) is arranged in the water absorption channel (2411), and the filter screen fixing gasket (243) penetrates through the water absorption channel (2411) to fix the filter screen (242).

15. The range hood of claim 11, wherein: the bottom of the water absorption disc shell (241) is in an upward concave shape, the peripheral wall of the water absorption disc shell (241) is supported on the bottom surface in the water box (211), a hole (2412) is formed in the peripheral wall of the water absorption disc shell (241), and cleaning media in the water box (211) are sucked into the water absorption channel (2411) through the hole (2412).

16. The range hood of claim 11, wherein: the water sucking disc is characterized in that a temperature sensor (245) used for detecting the temperature of a cleaning medium in the water box (211) is arranged on the water sucking disc shell (241), and an indicating lamp (218) capable of indicating the temperature of the cleaning medium in the water box (211) is arranged on the water box component (21).

17. The range hood of claim 1, wherein: the lower panel (3) is connected with the shell (1) through a connecting structure, the connecting structure comprises a supporting arm (32), a shaft (35) and a snap fastener, the shaft (35) is arranged in the shell (1), the bottom of the supporting arm (32) is rotatably connected with the shell (1) through the shaft (35), and the supporting arm (32) is fixed with the lower part of the lower panel (3); the upper part of the lower panel (3) is detachably connected with the shell (1) through the primary and secondary buckles.

18. The range hood of claim 17, wherein: connection structure still includes third connecting rod (33) and fourth connecting rod (34), third connecting rod (33) and lower panel (3) rotate to be connected, the one end of fourth connecting rod (34) is rotated and is connected in casing (1) and the other end then with third connecting rod (33) both ends between the position rotate be connected, the axis of rotation of third connecting rod (33) and fourth connecting rod (34) all is parallel with axle (35), connect through damping nut (36) between third connecting rod (33) and fourth connecting rod (34).

19. The range hood of claim 18, wherein: a bending part (331) is formed at the end part of the third connecting rod (33) far away from the lower panel (3), and the bending part (331) is positioned behind the fourth connecting rod (34).