CN209165511U - Range hood, cleaning system, external contact part and joint assembly for range hood - Google Patents

Abstract

The utility model discloses a kind of range hood and for the cleaning system, external contact part and joint assembly of range hood, cleaning system includes: for providing the cleansing medium feeding assembly go out with media port of cleansing medium；Import is suitable for the internal washing branch being connected to media port out；Import is suitable for the exterior washings branch being connected to media port out, exterior washings branch road is equipped with dismountable exterior washings component, when external cleaning assembly is packed into, internal washing branch can disconnect and exterior washings branch can be connected and be cleaned with the outside to range hood, when external cleaning assembly removes, exterior washings branch can disconnect and internal washing branch can be connected and be cleaned with the inside to range hood, and internal washing branch generating state under the triggering of at least one of the dismounting movement of external cleaning assembly and the pressure of internal washing branch switches.The inside and outside of range hood can be cleaned according to the cleaning system of the utility model embodiment.

Description

Range hood, cleaning system, external contact part and joint assembly for range hood

The application is the applying date for " 2018-01-11, application No. is " 201820057330.8, the entitled " fume-exhausting of application The division of machine and cleaning system for range hood ".

Technical field

The utility model relates to range hood technical fields, more particularly, to a kind of range hood, are used for range hood Cleaning system and external contact part for range hood.

Background technique

In use, greasy dirt adsorbs smoke machine in runner and the external of smoke machine, and the windage of smoke machine improves, and will affect smoke machine Performance, and greasy dirt directly affects experience and cooking status that user uses product during the cooking process outside smoke machine.

In the related art, smoke machine only has the function of internal washing, can be using thermalization oil, steam, hot water and cold water etc. Mode cleans smoke machine inside, and cannot be cleaned to the outside of smoke machine, such as outer surface, the hearth position of smoke machine. The exterior washings of smoke machine are mainly cleaned using steam cleaner etc. that is artificial or in addition buying, and artificial cleaning can not be thorough Decontamination, and it is cumbersome laborious, and in addition buy steam cleaner and then cause economic waste.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions A kind of cleaning system for range hood out, the cleaning system for range hood can inside to range hood and Outside is cleaned.

The utility model also proposed a kind of external contact part for range hood, and the external contact part can dock head tube Junction protected.

The utility model also proposed a kind of joint assembly with above-mentioned external contact part.

The utility model also proposed a kind of range hood with above-mentioned cleaning system.

According to the cleaning system for range hood of the utility model embodiment, comprising: for providing cleansing medium Cleansing medium feeding assembly, the cleansing medium feeding assembly have media port；Internal washing branch, the internal washing branch The import on road is suitable for being connected to the media port out；Exterior washings branch, the import of the exterior washings branch be suitable for it is described Media port is connected to out, and the exterior washings branch road is equipped with dismountable exterior washings component, wherein in the exterior washings group When part is packed into, the internal washing branch can be disconnected and the exterior washings branch can be connected with the outside to the range hood It is cleaned, when the exterior washings component removes, the exterior washings branch can be disconnected and the internal washing branch can Conducting is cleaned with the inside to the range hood, wherein the internal washing branch is in the exterior washings component Generating state switches under the triggering of at least one of the pressure of dismounting movement and the internal washing branch.

It can inside to range hood and outer according to the cleaning system for range hood of the utility model embodiment Portion is cleaned, and using more economical laborsaving, appearance is more neat and artistic, and operates simpler convenience, can satisfy more More use demands.

In addition, can also be had according to the cleaning system for range hood of the utility model above-described embodiment following attached The technical characteristic added:

According to the cleaning system for range hood of the utility model embodiment, the exterior washings branch is described outer It is connected when portion's cleaning assembly is packed into and is disconnected immediately when the exterior washings component removes immediately, the internal washing branch exists The exterior washings component be packed into when disconnect immediately or postpone disconnect and when the exterior washings component removes immediately conducting or Delayed conducting.

Some embodiments according to the present utility model, the internal washing branch road are equipped with pressure valve, and the pressure valve exists It opens when the pressure of the internal washing branch reaches the first predetermined pressure the internal washing branch is connected and described interior The pressure that branch is cleaned in portion is closed when being lower than the first predetermined pressure to disconnect the internal washing branch.

Further, the exterior washings branch has branch connector portions, and the exterior washings component includes: clear for going out Wash the outer cleaning part of medium；External contact part, the external contact part be connected with the outer cleaning part and removably with the branch Connector portions be connected, when the external contact part is connected with the branch connector portions, the outlet of the branch connector portions with it is described external The inlet communication on head, the external contact part and the branch junction portion from when, the outlet of the branch connector portions is closed.

In some embodiments of the utility model, the internal washing branch, the exterior washings branch and described clear It washes medium feeding assembly to be connected to two-by-two by the control valve realization of two-bit triplet, the control valve is filled in the exterior washings component It the fashionable outer conducting position for being on the exterior washings branch and is on when the exterior washings component removes described The interior conducting position of internal washing branch.

Further, the exterior washings branch road is equipped with microswitch, and the microswitch is in the exterior washings group Part be packed into when be triggered with control the control valve be in outer conducting position and be triggered when the exterior washings component removes with It controls the control valve and is in interior conducting position.

Further, the exterior washings branch has branch connector portions, and the microswitch is located at the branch pipeline connector In portion, the exterior washings component includes: the outer cleaning part for going out cleansing medium；External contact part, the external contact part and institute It states outer cleaning part to be connected and be removably connected with the branch connector portions, the external contact part is connected with the branch connector portions When, the external contact part stop the outlets of the contact for supporting the microswitch and the branch connector portions and the external contact part into Mouthful connection, the external contact part and the branch junction portion from when, the external contact part discharges the contact of the microswitch And the outlet of the branch connector portions is closed.

The exit of some embodiments according to the present utility model, the branch connector portions is equipped with core assembly, described When external contact part is connected with the branch connector portions, the core assembly the external contact part only support under be moved to open institute State the open position of outlet and the external contact part and the branch junction portion from when not by the external contact part stopped to It is reset to the closed position for closing the outlet.

Further, the core assembly includes: spool, and one end of the spool is suitable for only supporting with the external contact part, The other end of the spool is equipped with the mouth-sealed portion for closing the outlet, and the spool is equipped with and is in the core assembly The fluid channel of the outlet and the import is connected to when open position；First elastic component, the spool are suitable for described first Only supporting down for elastic component is reset to the closed position.

Further, first elastic component is helical spring of the housing on the spool, and the mouth-sealed portion is to be arranged Sealing ring on the spool.

Some embodiments according to the present utility model, the branch connector portions are equipped with card slot, and the external contact part includes: Junction block, the import of the junction block are suitable for the outlet with the external contact part；Hook, the hook and the junction block It is connected and is connected in the card slot.

Some embodiments according to the present utility model, the branch connector portions are equipped with card slot, the touching of the microswitch Point protrudes into the card slot, and the external contact part includes: junction block, and the import of the junction block is suitable for going out with the external contact part Mouth connection；Hook, the hook are connected with the junction block, and the hook is suitable for being connected in the card slot and only supports the touching Point is to trigger the microswitch.

Further, the hook includes: hook head, and the hook head is suitable for being connected in the card slot and is suitable for only supporting The contact；Hook arm, the hook arm depressed position and bounce between position relative to the junction block can be rotated, it is described Hook head is located at the free end of the hook arm, and the hook head is suitable for when the hook arm is in depressed position to the card It installs in slot and is connected in the card slot when the hook arm is in and bounces position, the free end of the hook arm and pivot Press section is formed between end.

In some embodiments of the utility model, the external contact part further include: the second elastic component, second elasticity Part is only against between the press section and the junction block to push the press section to reset.

Further, second elastic component is helical spring, and the press section is equipped with installation protrusion, the junction block Lateral surface be equipped with only arrival slot, described in one end of the helical spring is set in that installation protrusion is upper and the other end is only against Only in arrival slot.

Some embodiments according to the present utility model, the external contact part further include: shell, the junction block protrude into described In shell, the shell is equipped with the handle hole for exposing the press section, and the two sides of the junction block are equipped with limiting slot, The two side walls of the shell are equipped with the retention bead being plugged in the limiting slot, and the hook includes multiple, Duo Gesuo Hook is stated along the circumferentially distributed of the junction block, the hub switch side of each press section and the shell pass through axis hole and shaft Connection is realized in cooperation.

Further, the external contact part includes: inner sleeve, and the separate institute of the shell is protruded into one end of the inner sleeve One end of branch connector portions is stated, the outer peripheral surface of the inner sleeve is equipped with external annular groove, and the internal perisporium of the shell is equipped with Suitable for the annular protrusion being plugged in the external annular groove；Outer tube, the outer tube housing is outside the inner sleeve, institute The one end for stating outer tube is equipped with outer bending edge, and the end of the shell is equipped with in-flanges, and the outer bending edge backstop is described interior Between flange and annular protrusion, the outer cleaning part is adapted to extend into the inner sleeve and is connected with the junction block.

Cleaning system in some embodiments of the utility model, for range hood further include: pressure switch component, The pressure switch component is connected with the control valve, and the pressure switch component is detecting the control valve and Jie out Pressure between matter mouth controls the control valve and is in the interior conducting position when reaching the second predetermined pressure.

The cleaning system for range hood of some embodiments according to the present utility model further include: pressure release branch, institute State one end of pressure release branch with it is described go out media port be connected to, the other end of the pressure release branch be connected to the control valve with it is described Internal washing branch is used between the interior cleaning part of cleansing medium；First relief valve, first relief valve are located at described Pressure release branch road, first relief valve are in normally off and reach in the pressure out between media port and the control valve It opens when to third predetermined pressure the pressure release branch is connected.

Some embodiments according to the present utility model, the cleansing medium feeding assembly includes: device for storing liquid；Steam generation Device, the steam generator is connected to receive the liquid of the device for storing liquid with the device for storing liquid, in the steam generator Equipped with the heating member for liquid to be thermally formed to steam, the steam port that goes out of the steam generator is the media port out；It drives Dynamic device, the driving device are located between the device for storing liquid and the steam generator to drive in the device for storing liquid Liquid flows into the steam generator.

Further, the cleansing medium feeding assembly further include: the second relief valve, second relief valve are located at described Between steam generator and the device for storing liquid, second relief valve is in normally off and in the cleansing medium supply group It is opened when the pressure of part reaches four predetermined pressures to discharge the pressure of the cleansing medium feeding assembly.

Range hood according to the utility model embodiment includes according to the utility model embodiment for range hood Cleaning system.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the structural schematic diagram according to the cleaning system of the utility model one embodiment；

Fig. 2 is the structural schematic diagram according to the cleaning system of the utility model another embodiment；

Fig. 3 is the structural schematic diagram according to the cleaning system of the utility model another embodiment；

Fig. 4 is the connection knot of the external contact part and branch connector portions according to the cleaning system of the utility model one embodiment Structure schematic diagram；

Fig. 5 is that Fig. 4 centre circle shows enlarged structure schematic diagram at C；

Fig. 6 is shown according to the branch connector portions of the cleaning system of the utility model embodiment and the connection structure of core assembly It is intended to；

Fig. 7 is the structural schematic diagram according to the external contact part of the cleaning system of the utility model embodiment；

Fig. 8 is the attachment structure schematic diagram of the shell and junction block according to the cleaning system of the utility model embodiment；

Fig. 9 is the structural schematic diagram according to the control valve of the cleaning system of the utility model embodiment；

Figure 10 is the company of the external contact part and branch connector portions according to the cleaning system of the utility model another embodiment Connect structural schematic diagram.

Appended drawing reference:

Cleaning system 100；

Cleansing medium feeding assembly 10；Media port 101 out；Device for storing liquid 11；Steam generator 12；Driving device 13；The Two relief valves 14；

Internal washing branch 20；Pressure valve 21；Interior cleaning part 22；Internal part 23 to be cleaned；Collection device 24；

Exterior washings branch 30；

Exterior washings component 31；Outer cleaning part 311；External contact part 312；Junction block 313；Only arrival slot 3131；Limiting slot 3132；Hook 314；Hook head 3141；Hook arm 3142；Press section 3143；Installation protrusion 3144；Shaft 3145；Second elasticity Part 315；Shell 316；Handle hole 3161；Retention bead 3162；Axis hole 3163；Annular protrusion 3164；In-flanges 3165；Inner sleeve Pipe 317；External annular groove 3171；Outer tube 318；Outer bending edge 3181；Threaded fastener 319；

Branch connector portions 32；Card slot 321；Branch extension tube attached 322；Branch inner connecting tube 323；Sealing ring 324；

Microswitch 33；Contact 331；

Core assembly 34；Spool 341；First elastic component 342；Mouth-sealed portion 343；

Control valve 40；

Pressure switch component 50；

Pressure release branch 60；First relief valve 61.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and should not be understood as practical new to this The limitation of type, those skilled in the art can be to these in the case where not departing from the principles of the present invention and objective Embodiment carries out a variety of change, modification, replacement and modification, and the scope of the utility model is defined by the claims and their equivalents.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure or position Relationship is set, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This Outside, " first " is defined, the feature of " second " can explicitly or implicitly include one or more of the features.In this reality With in novel description, unless otherwise indicated, the meaning of " plurality " is two or more.

Below with reference to Fig. 1-Figure 10 description according to the cleaning system 100 for range hood of the utility model embodiment.

It, can be with according to the cleaning system 100 for range hood of the utility model embodiment referring to Fig.1 shown in-Figure 10 It include: cleansing medium feeding assembly 10, internal washing branch 20 and exterior washings branch 30.

Specifically, cleansing medium feeding assembly 10 can provide cleansing medium, and cleansing medium feeding assembly 10 has There is the media port 101 out that can export cleansing medium.The import of internal washing branch 20 and the import of exterior washings branch 30 are equal It can be connected to media port 101 out.

It is different from the related technology as a result, smoke machine only has the function of internal washing, according to the clear of the utility model embodiment Extensional mode cleaning system can be formed as by washing system 100, and the cleansing medium that cleansing medium feeding assembly 10 provides can both pass through Internal washing branch 20 cleans the inside of range hood, reduces the windage of range hood, improves the performance of range hood, It can be cleaned again by outside of the exterior washings branch 30 to range hood, achieve the effect that stain removal bactericidal, guarantee kitchen It is clean and tidy, improve user culinary art experience.Cleaning system 100 can be adsorbed on range hood inside and outside greasy dirt, The fouls such as dust are thoroughly cleaned, and user without in addition purchase for the cleaning equipment of exterior clean or clear manually It washes, the cleansing medium of generation is exported to external carry out clearly by the cleansing medium feeding assembly 10 that can use the inside of range hood It washes, avoids economic waste, it is also more laborsaving.

Here, " inside " can be understood as the position clean in the casing of range hood, for example, it may be Impeller, spiral case, runner of range hood etc.；" outside " can be understood as the portion clean outside the casing of range hood Position, for example, it may be the outer surface of the casing of range hood or hearth etc..

In addition, in the present invention, exterior washings component 31 can be equipped on exterior washings branch 30, and external clear Washing component 31 can dismantle.When external cleaning assembly 31 is packed into, internal washing branch 20 can be disconnected, exterior washings branch 30 It can be connected, at this point it is possible to which the outside to range hood is cleaned.When external cleaning assembly 31 removes, exterior washings branch Road 30 can disconnect, and internal washing branch 20 can be connected, at this point it is possible to which the inside to range hood is cleaned.Namely It says, when needing the outside to range hood to clean, exterior washings component 31 can be packed into, not needed to range hood Outside when being cleaned, exterior washings component 31 can be removed into other storage, can reduce the occupied space of range hood, The appearance of range hood is more neat and artistic, avoids the normal use for interfering range hood, is also possible to prevent exterior washings component 31 damages.

It should be noted that the state switching of conducting and the disconnection of internal washing branch 20 can be real in several ways It is existing.

For example, internal washing branch 20 can be in external cleaning assembly 31 in some embodiments of the utility model Realization state switches under the triggering of dismounting movement, when exterior washings component 31 is packed into, can trigger internal washing branch 20 and cut Off-state is shifted to, when exterior washings component 31 removes, the switching-on state of internal washing branch 20 can be triggered.

For another example internal washing branch 20 can be according to the height of pressure value in other embodiments of the utility model Low realization state switching, when the pressure of internal washing branch 20 reaches predetermined value, internal washing branch 20 can be connected, otherwise interior Portion cleans branch 20 and disconnects.

Certainly, internal washing branch 20 can also dismounting movement in external cleaning assembly 31 and internal washing branch 20 Generating state switches under the mating reaction of pressure, and in other words, internal washing branch 20 can be in the dismounting of external cleaning assembly 31 Generating state switches under the triggering of at least one of the pressure of movement and internal washing branch 20.

According to the cleaning system 100 for range hood of the utility model embodiment with internal washing system 20 and outside Portion's cleaning system 30 can clean the inside and outside of range hood, and using more economical laborsaving, appearance is cleaner and tidier Beauty, and the state switching of internal washing system 20 can be accomplished in several ways, and operate simpler convenience, Ke Yiman The more use demands of foot.

In the embodiment that the dismounting movement of external cleaning assembly 31 can trigger the switching of 20 state of internal washing branch, such as Shown in Fig. 1 and Fig. 3, when external cleaning assembly 31 is packed into, exterior washings branch 30 can be connected immediately, in external cleaning assembly 31 when removing, and exterior washings branch 30 can disconnect immediately, the conducting of exterior washings branch 30 and to disconnect control sensitive, and can be with Cleansing medium leakage and the generation of injury accident occur when exterior washings component 31 being effectively prevent to remove, it is safer.

And in the dismounting of external cleaning assembly 31, the state switching of internal washing branch 20 can occur immediately, can also be with Delay occurs.For example, the state switching of internal washing branch 20 is only by external clear in specific embodiment as shown in Figure 1 The dismounting action triggers for washing component 31, when external cleaning assembly 31 is packed into, internal washing branch 20 can disconnect immediately, outside When portion's cleaning assembly 31 removes, internal washing branch 20 can be connected immediately.

For another example in an embodiment as illustrated in figure 3, the dismounting movement of exterior washings component 31 and internal washing branch 20 Pressure cooperation effect triggering internal washing branch 20 state switching.When exterior washings component 31 dismounts, internal washing branch 20 pressure can gradually change delayed switching to realize the state of internal washing branch 20 or internal washing branch 20 Pressure can realize the switching immediately of internal washing branch 20 with instantaneous variation.

In addition, as shown in Fig. 2, the reality of the state switching in the pressure control internal washing branch 20 of internal washing branch 20 It applies in example, pressure valve 21 can be equipped on internal washing branch 20.Reach the first pre- level pressure in the pressure of internal washing branch 20 When power, internal washing branch 20 can be connected in the opening of pressure valve 21, be lower than the first pre- level pressure in the pressure of internal washing branch 20 When power, pressure valve 21, which is closed, to clean branch 20 with breaking inner.The conducting of internal washing branch 20 and the switching of off-state It is sensitiveer.

Further, pressure valve 21 can be check valve, and structure is simpler, be easily installed, and cleaning can be prevented to be situated between Matter reflux, more securely and reliably.

According to the utility model further embodiment, as shown in Fig. 1, Fig. 4-Fig. 8, exterior washings branch 30 be can have Branch connector portions 32, exterior washings component 31 may include: outer cleaning part 311 and external contact part 312.

Wherein, outer cleaning part 311 can be used for cleansing medium out, and user can control outer cleaning part 311 to range hood Outside cleaned, it is easy to operate.In some examples of the utility model, outer cleaning part 311 can for spray gun or Person's spray head etc., and outer cleaning part 311 can have switch block, when switch block is opened, outer cleaning part 311 is connected, can be with Cleansing medium is sprayed, when switch block is closed, outer cleaning part 311 is closed.User can more easily control in use The on-off of outer cleaning part 311, without frequently dismount exterior washings component 31 or regulate and control internal washing branch 20 pressure with The on off operating mode of exterior washings branch 30 is controlled, practicability is stronger.

In addition, external contact part 312 is connected with outer cleaning part 311, and external contact part 312 as shown in Fig. 1, Fig. 4 and Fig. 6 It can be detachably connected with branch connector portions 32.When external contact part 312 is connected with branch connector portions 32, as shown in figure 4, branch The outlet in pipeline connector portion 32 can be connected to the import of external contact part 312, and cleansing medium can be by the outlet of branch connector portions 32 Enter outer cleaning part 311 into the import of external contact part 312, and then by external contact part 312.External contact part 312 connects with branch When head 32 separates, as shown in fig. 6, the outlet of branch connector portions 32 is closed, cleansing medium can not going out by branch connector portions 32 Mouth outflow.

In some embodiments of the utility model, as shown in Fig. 1, Fig. 3 and Fig. 9, internal washing branch 20, exterior washings Branch 30 can be realized by the control valve 40 of two-bit triplet with cleansing medium feeding assembly 10 and is connected to two-by-two.Specifically, it controls Valve 40 may include three channels, and wherein channel P can be connected to the sealing of media port 101 that goes out of cleansing medium feeding assembly 10, Channel A can be sealed with internal washing branch 20 and is connected to, and channel B can be sealed with exterior washings branch 30 and is connected to.And it controls Valve 40 may include interior conducting position and outer conducting position, and when external cleaning assembly 31 is packed into, control valve 40 may be at outer conducting Exterior washings branch 30 is connected at this point, channel P is connected with channel B in position, cleansing medium feeding assembly 10 and exterior washings branch Road 30 is connected to；When external cleaning assembly 31 removes, control valve 40 may be at interior conducting position, at this point, channel P is led with channel A It is logical, internal washing branch 20 is connected, cleansing medium feeding assembly 10 is connected to internal washing branch 20.

Further, as shown in Figure 4-Figure 6, microswitch 33 can be equipped on exterior washings branch 30, in exterior washings When component 31 is packed into, microswitch 33 can be triggered to control control valve 40 and be in outer conducting position, and in exterior washings group When part 31 removes, microswitch 33 can be triggered to control control valve 40 and be in interior conducting position.Pass through exterior washings group as a result, The dismounting of part 31 can trigger the state switching of internal washing branch 20, cleansing medium feeding assembly 10 and internal washing branch 20 The conversion that connection or cleansing medium feeding assembly 10 are connected to exterior washings branch 30 need to only be torn open by exterior washings component 31 The single stepping of dress can be realized, and operate simpler convenience.

With continued reference to shown in Fig. 4-Fig. 6, in the implementation with branch connector portions 32, outer cleaning part 311 and external contact part 312 In example, microswitch 33 can be located in branch connector portions 32.It is external when external contact part 312 is connected with branch connector portions 32 Head 312 can make control valve 40 be in outer conducting position, outside only to the contact 331 of microswitch 33 to trigger microswitch 33 When connector portions 312 are separated with branch connector portions 32, external contact part 312 can discharge the contact 331 of microswitch 33, micro- to trigger Dynamic switch 33 makes control valve 40 be located at interior conducting position, and the position setting of microswitch 33 is reasonable.

In addition, microswitch 33 can removably be connected with branch connector portions 32, that is to say, that needing microswitch In the embodiment of 33 control 20 on states of internal washing branch, as shown in figure 4, microswitch 33 can be packed into, do not needing Microswitch 33 controls in the embodiment of 20 on state of internal washing branch, as shown in Figure 10, can remove microswitch 33.

Some embodiments according to the present utility model, as shown in fig. 4-5, the exit of branch connector portions 32 can be equipped with Core assembly 34, and core assembly 34 can move between open and closed positions.External contact part 312 connects with branch In the connection procedure on head 32, external contact part 312 can only support core assembly 34, make core assembly 34 to opening branch connector portions The open position of 32 outlet is mobile, when external contact part 312 is connected with branch connector portions 32, as shown in Figure 4 and Figure 5, branch The outlet of connector portions 32 fully opens.When external contact part 312 is separated with branch connector portions 32, core assembly 34 is not by coupling Portion 312 only supports, and core assembly 34 can be reset to the closed position for closing the outlet of branch connector portions 32.

Further, as shown in Figure 4-Figure 6, core assembly 34 may include: spool 341 and the first elastic component 342.Spool 341 one end can only be supported with external contact part 312, and 34 component of spool is allow only to support lower movement in external contact part 312.Spool 341 other end can be equipped with mouth-sealed portion 343, be also provided with fluid channel on spool 341.Mouth-sealed portion 343 can be used for sealing Close the outlet of branch connector portions 32, fluid channel can when core assembly 34 is in an open position connected component pipeline connector portion 32 The import of outlet and external contact part 312.

In addition, the first elastic component 342 can be only butted between branch connector portions 32 and spool 341.As shown in figure 5, spool 341 are only instead moved to open position in external contact part 312 under, and the first elastic component 342 is in compressive state, fluid channel The outlet in connected component pipeline connector portion 32 and the import of external contact part 312.As shown in fig. 6, when external contact part 312 removes, spool 341 lose and only instead use, and the first elastic component 342 restores to the original state, and spool 341 can be lower automatic in only supporting for the first elastic component 342 It is reset to closed position, prevent cleansing medium from being leaked by the outlet of branch connector portions 32 and injury accident occurs, more safety can It leans on.

Further, in specific embodiment as shown in Figure 5, spool 341 can be formed generally as along cleansing medium The cylinder that flow direction extends, mouth-sealed portion 343 can be formed generally as prolonging along the plane of the flow direction perpendicular to cleansing medium At least part of the circle stretched, one end of the neighbouring external contact part 312 of spool 341 is formed with fluid channel.

In addition, at least part of one end of the neighbouring external contact part 312 of spool 341 is made of multiple plate bodys, multiple plates Axis extending radially outwardly along spool 341 of the body by spool 341, and the one of the axis of the separate spool 341 of multiple plate bodys The circumferentially spaced setting along spool 341 is held, limits fluid channel between two neighboring plate body.Thus, it is possible to guarantee in valve When core 341 and external contact part 312 only support, cleansing medium can enter external contact part by branch connector portions 32 by fluid channel 312.It should be noted that the structure of spool 341 shown in Fig. 5 is cross-sectional view, therefore by plate body stream is not shown in Figure 5 in hatching line Body channel design.

Still further, the first elastic component 342 can be helical spring of the housing on spool 341, structure it is simple and It can be recycled, non-aging deformation.Mouth-sealed portion 343 can be the sealing ring being set on spool 341, the sealing of sealing ring Effect is more preferable, when external contact part 342 removes, can effectively seal the outlet of branch connector portions 32, prevent cleansing medium from leaking, It is safer.

According to the utility model further embodiment, as shown in Figure 5 and Figure 6, branch connector portions 32 may include branch Extension tube attached 322, branch inner connecting tube 323 and sealing ring 324, branch extension tube attached 322 and branch inner connecting tube 323 can be connected by screw thread It connects, and can be sealed by sealing ring 324 between branch extension tube attached 322 and branch inner connecting tube 323, prevent cleansing medium from letting out Leakage.The spool 341 of core assembly 34 can be threaded through in branch inner connecting tube 323, when core assembly 34 is located at closed position, spool The mouth-sealed portion 343 of component 34 can be against one end of branch inner connecting tube 323 only to close the outlet of branch connector portions 32.It is filled Timing can first assemble core assembly 34 and branch inner connecting tube 323, then again by branch inner connecting tube 323 and branch Extension tube attached 322 is assembled, and core assembly 34 is easier for installation, and structure design is more reasonable.

Further, sealing ring 324 can be silica gel ring, and sealing effect is more preferable, and more wear-resisting, easy to process.

In some embodiments of the utility model, as shown in Figure 4-Figure 7, card slot can be equipped in branch connector portions 32 321, external contact part 312 may include: junction block 313 and hook 314, and the import of junction block 313 can be with external contact part 312 Outlet, hook 314 can be connected with junction block 313, and hook 314 can be connected to it is external to realize in card slot 321 The clamping on head 312 and branch connector portions 32, connection structure are simply secured.

In addition, as shown in figure 5, the contact 331 of microswitch 33 can be protruded into the embodiment with microswitch 33 Card slot 321, as a result, when hook 314 is connected in card slot 321, hook 314 can contradict point 331 only to trigger microswitch 33, realize that the triggering that microswitch 33 is realized by the dismounting of external contact part 312, structure design are more reasonable.

Further, as shown in fig. 7, hook 314 may include: hook head 3141 and hook arm 3142.Wherein, hook head 3141 can be connected in card slot 321, and in the embodiment with microswitch 33, and hook head 3141 can be opened with fine motion The contact 331 for closing 33 is only supported.One end of hook arm 3142 is free end, and the other end of hook arm 3142 is hub switch side, and from By could be formed with press section 3143 between end and hub switch side.Free end can be rotated relative to hub switch side, so that hook arm 3142 can rotate between position relative to junction block 313 in depressed position and bouncing, and hook head 3141 can be located at hook arm 3142 free end.

Thus, it is desirable to which can press press section 3143 makes hook arm when by 312 card access leg connector portions 32 of external contact part 3142 are moved to depressed position, at this point, hook head 3141 moves inward, i.e., move to the direction far from card slot 321, at this time hook First 3141 can install into card slot 321.After hook head 3141 be moved to position it is corresponding with card slot 321 after, stop by pressing Splenium 3143, hook head 3141 are displaced outwardly, i.e., mobile to the direction of insertion card slot 321, hook arm 3142, which is moved to, bounces position It sets, hook head 3141 is connected in card slot 321, and external contact part 312 is installed with branch connector portions 32.

Further, as shown in figs. 4 and 7, external contact part 312 can also include the second elastic component 315, the second elastic component 315 can only be against between press section 3143 and junction block 313.When hook arm 3142 is located at depressed position, the second elastic component 315 In compressive state, after stopping pressing press section 3143, the second elastic component 315 restores to the original state, while the second elastic component 315 can Only to support press section 3143 and press section 3143 is pushed to automatically reset, hook head 3141 is made to be caught in card slot 321.Pressing need to only be passed through Or stop pressing press section 3143 and the clamping of external contact part 312 Yu branch connector portions 32 can be completed, operating process is simple.

In some embodiments of the utility model, the second elastic component 315 can be helical spring, and structure is simple and can be with It is recycled, non-aging deformation.

In addition, protrusion 3144 is installed as shown in fig. 7, can be equipped on press section 3143, it can on the lateral surface of junction block 313 To be equipped with only arrival slot 3131.Installation protrusion 3144 is protruded by the inner surface of press section 3143 towards the direction of junction block 313, spiral One end of spring can be set in installation protrusion 3144, and the other end of helical spring can only be against only arrival slot 3131 Interior, installation protrusion 3144 cooperates with only arrival slot 3131 can limit helical spring relative to press section 3143 and junction block 313 Position prevents the position of helical spring from shifting and press section 3143 can not be pushed to reset.

Some embodiments according to the present utility model, as shown in Figure 7 and Figure 8, external contact part 312 can also include shell 316, junction block 313 can protrude into shell 316, and shell 316 can dock head tube 313 and be protected, and prevent junction block 313 from anticipating The appearance of outer damage, external contact part 312 is also more neat and artistic.

In addition, can be equipped with handle hole 3161 on shell 316, press section 3143 can be exposed by handle hole 3161, be used Family can press press section 3143 by the outside of shell 316 or stop pressing, and operate more convenient.Junction block 313 Two sides can be equipped with limiting slot 3132, retention bead 3162, retention bead 3162 can be equipped in the two side walls of shell 316 It can be plugged in limiting slot 3132, be achieved in the connection of junction block 313 Yu shell 316.

It should be noted that the utility model the shape of limiting slot 3132 and retention bead 3162 is not done it is specifically limited, It only needs to meet limiting slot 3132 and retention bead 3162 to cooperate to realize requirement that junction block 313 is connect with shell 316 i.e. It can.For example, limiting slot 3132 can be square hole slot, retention bead 3162 in some specific embodiments of the utility model It can be square protruding, the connection for realizing junction block 313 and shell 316 can be inserted in rectangular hole slot in square protruding.

In the present invention, hook 314 may include multiple, and multiple hooks 314 can be along the circumferential direction of junction block 313 point Cloth, the hub switch side of each press section 3143 can have shaft 3145, can have on shell 316 opposite with 3145 position of shaft The axis hole 3163 answered, shaft 3145 can be plugged in the connection that hook 314 Yu junction block 313 are realized in axis hole 3163, and Shaft 3145 rotates in axis hole 3163 rotates free end relative to hub switch side.

For example, hook 314 includes two, and two hooks 314 are respectively provided at and connect in specific embodiment as shown in Figure 7 The two sides of head tube 313, user can be operated by the press section 3143 of two sides, and operation is more convenient, and hook 314 is by two Side is clamped, it is ensured that clamping is secured.

Certainly, in the present invention, the quantity of hook 314 is not limited to two, and the quantity of hook 314 can be according to reality Situation needs flexible setting, it is only necessary to meet hook 314 and be connected in card slot 321 to realize external contact part 312 and branch pipeline connector The requirement that portion 32 connects.For example, the quantity of hook 314 may be three in other embodiments of the utility model It is a, four or more.It should be noted that being in multiple embodiments in hook 314, the second elastic component 315, installation are convex It plays 3144 and only the quantity of arrival slot 3131 can be identical as hook 314 and be arranged correspondingly.

According to the utility model further embodiment, as shown in fig. 7, external contact part 312 may include: inner sleeve 317 With outer tube 318.

One end of inner sleeve 317 can protrude into one end of the separate branch connector portions 32 of shell 316, and outer cleaning part 311 can It is connect with protruding into inner sleeve 317 with external contact part 312, for example, outer cleaning part 311 can be with the separate branch of junction block 313 One end of connector portions 32 is connected.Inner sleeve 317 can be protected externally in cleaning part 311 and the junction of junction block 313 as a result, Shield prevents to loosen and lead to cleansing medium leakage or the generation of injury accident.

Outer tube 318 can be with housing outside inner sleeve 317, and inner sleeve 317 and outer tube 318 generally form shaft hole matching, On the one hand it externally can further protect in cleaning part 311 and the junction of junction block 313, on the other hand, outer tube 318 can be with shape As decorative tube, keep the appearance of external contact part 312 more beautiful.

In addition, the utility model to inner sleeve 317, outer tube 318 be connected and fixed structure do not do it is specifically limited, for example, In specific embodiment as shown in Figure 7, external annular groove 3171 can be equipped on the outer peripheral surface of inner sleeve 317, shell 316 Annular protrusion 3164 can be equipped on internal perisporium, annular protrusion 3164 can be plugged in external annular groove 3171, inner ring Shape protrusion 3164 can make inner sleeve 317 and the position of shell 316 relatively fixed with the cooperation of external annular groove 3171.

One end of outer tube 318 can be equipped with outer bending edge 3181, and the end of shell 316 can be equipped with in-flanges 3165, Outer bending edge 3181 can be with backstop between in-flanges 3165 and annular protrusion 3164, so that outer tube 318 and shell 316 Position is relatively fixed.The radial and axial position that inner sleeve 317 and outer tube 318 are respectively relative to shell 316 is fixed and is fixed It is simple and strong in structure, but inner sleeve 317 and outer tube 318 are respectively relative to the circumferential direction of shell 316 and can rotate freely, and use Journey is more convenient.

Further, shell 316 may include first shell and second shell, and first shell and second shell can be clamped It is connected or is connected and fixed by threaded fastener 319 and constitutes shell 316, junction block 313, hook 314, inner sleeve 317 and outer In the installation space that casing 318 can be limited between first shell and second shell.In assembling process, Ke Yixian Inner sleeve 317 and outer tube 318 are assembled, then pacify junction block 313, hook 314, inner sleeve 317 and outer tube 318 Loaded in first shell, second shell is connect with first shell finally and is passed through clamping structure or threaded fastener 319 into Row is fixed, and keeps the assembly of external contact part 312 simpler, easily operated.

In addition, it can be respectively equipped with locating slot and positioning protrusion on the face relative to each other of first shell and second shell, Then locating slot and positioning protrusion cooperation can pass through again clamping structure or screw thread with Primary Location first shell and second shell The structures such as fastener 319 are fixed, and keep assembling process simpler.

The cleaning system 100 of some embodiments according to the present utility model can also include pressure switch component 50, such as Fig. 1 Shown, pressure switch component 50 can be connected with control valve 40, and pressure switch component 50 can be to control valve 40 and media port out Pressure between 101 is detected, when pressure switch component 50 detects that the pressure between control valve 40 and out media port 101 reaches When to the second predetermined pressure, pressure switch component 50 can control control valve 40 and be in interior conducting position, i.e. control internal washing branch Road 20 is connected, and exterior washings branch 30 disconnects.

As a result, when external cleaning assembly 31 is packed into, if exterior washings branch 30 is controlled or is sent out by other devices When cleansing medium is discharged can not by exterior washings branch 30 for a long time in raw blocking, pressure switch component 50 can make internal washing Branch 20 is connected, and to reduce the pressure in cleaning system 100, prevents the pressure in cleaning system 100 excessive and causes to injure thing Therefore generation.

In some embodiments of the utility model, as shown in figure 3, cleaning system 100 can also include: pressure release branch 60 With the first relief valve 61.Specifically, one end of pressure release branch 60 can be connected to media port 101 out, pressure release branch 60 it is another End can connect in control valve 40 and internal washing branch 20 for going out between the interior cleaning part 22 of cleansing medium, here in it is clear Washing portion 22 can be the structures such as jet pipe or spray head.First relief valve 61 can be located on pressure release branch 60, the first relief valve 61 It may be at normally off, and when the pressure out between media port 101 and control valve 40 reaches third predetermined pressure, first Relief valve 61 can be opened so that pressure release branch 60 is connected.

As a result, when external cleaning assembly 31 is packed into, if exterior washings branch 30 is controlled or is sent out by other devices When cleansing medium is discharged can not by exterior washings branch 30 for a long time in raw blocking, the first pressure release of pressure release branch 60 can be passed through Valve 61, which controls, makes cleansing medium be discharged to make the pressure reduction in cleaning system 100 by interior cleaning part 22, prevents cleaning system Pressure in 100 is excessive and leads to the generation of injury accident.

Further, the first relief valve 61 can be check valve, and structure is simple, is easily installed, and can prevent from cleaning Medium back flow, more securely and reliably.

It should be noted that in the present invention, the first predetermined pressure, the second predetermined pressure and third predetermined pressure Pressure value can need flexible setting according to the actual situation, the first predetermined pressure, the second predetermined pressure and third predetermined pressure Pressure value can be the same or different, this is within the protection scope of the utility model.

Some embodiments according to the present utility model, as shown in Figure 1-Figure 3, cleansing medium feeding assembly 10 may include: Device for storing liquid 11, steam generator 12 and driving device 13.Wherein, steam generator 12 can be connected to device for storing liquid 11, be driven Dynamic device 13 can be located between device for storing liquid 11 and steam generator 12.Driving device 13 can drive in device for storing liquid 11 Liquid flows into steam generator 12, and heating member can be equipped in steam generator 12, and heating member can heat liquid Formed steam, steam generator 12 go out steam port be media port 101, steam can by go out media port 101 outflow using as Cleansing medium is either internally or externally cleaned to range hood.

In the present invention, device for storing liquid 11 can be cup, and driving device 13 can be water pump, can store up in cup There are the liquid such as clear water or the detergent of room temperature, liquid can enter in steam generator 12 under the driving of water pump and be heated to be The cleansing medium of steam condition is simultaneously flowed out by going out media port 101.

Further, with continued reference to shown in Fig. 1-Fig. 3, cleansing medium feeding assembly 10 can also include the second relief valve 14, the setting position of the second relief valve 14 do not do it is specifically limited, for example, the second relief valve 14 can be located at steam generator 12 with Between device for storing liquid 11, or it can be located between steam generator 12 and driving device 13.Second relief valve 14 is in normally closed State, and when the pressure of cleansing medium feeding assembly 10 reaches four predetermined pressures, the second relief valve 14 can open with The pressure for reducing cleansing medium feeding assembly 10, prevents the pressure of cleansing medium feeding assembly 10 excessive and leads to injury accident Occur.

It should be noted that the numerical value of the 4th predetermined pressure can need flexible setting according to the actual situation.For example, such as In example shown in Fig. 2 including pressure valve 21, the pressure value of the 4th predetermined pressure can be greater than the pressure of the first predetermined pressure Value, as a result, in trouble-proof situation, pressure valve 21 can be opened prior to the second relief valve 14 to reduce cleaning system Pressure in 100 avoids the waste of cleansing medium.

For another example the pressure value of 4th predetermined pressure can in the example including pressure switch component 50 as shown in Figure 1 To be equal to the pressure value of the second predetermined pressure, make a reservation for as a result, when the pressure between control valve 40 and out media port 101 reaches second When pressure, the second relief valve 14, which is opened, carries out pressure release, while pressure switch component 50 controls control valve 40 and is in interior conducting position.When So, the pressure value of the 4th predetermined pressure can also be greater than the pressure value of the second predetermined pressure, make in trouble-proof situation, Pressure switch component 50 is acted prior to the second relief valve 14, avoids the waste of cleansing medium.

In another example in the example for including pressure release branch 60 and the first relief valve 61 as shown in Figure 3, the 4th predetermined pressure Pressure value can be greater than third predetermined pressure pressure value, as a result, in trouble-proof situation, the first relief valve 61 can To open prior to the second relief valve 14 to reduce the pressure in cleaning system 100, the waste of cleansing medium is avoided.

In some embodiments of the utility model, cleaning system 100 can also include collection device 24, collection device 24 It can be set in the lower section of internal part 23 to be cleaned.When inside of the cleaning system 100 to range hood is cleaned, cleaning is situated between Matter is sprayed by interior cleaning part 22, and a part enters atmosphere, another part be sprayed onto the surface of internal part 23 to be cleaned and to inside to The fouls such as the greasy dirt on 23 surface of cleaning part are cleaned, cleansing medium internal part 23 to be cleaned surface condensation, under cleaning Foul flows into collection device 24 together with condensate liquid.

Optionally, in the present invention, collection device 24 can be lubricating cup, for collecting condensate liquid, collection device 24 It can also be separator-filter, separator-filter can separate the foul in condensate liquid, the clean cleaning isolated The condensate liquid of medium can be again introduced into cleansing medium feeding assembly 10 to recycle, and be conducive to economize on resources.

Below with reference to the accompanying drawings the cleaning system 100 of specific embodiment according to the present utility model is described in detail, is worth understanding , only exemplary illustration described below, and should not be understood as the limitation to utility model.

Embodiment one:

As shown in Fig. 1, Fig. 4-Fig. 9, cleaning system 100 include device for storing liquid 11, steam generator 12, driving device 13, Second relief valve 14, internal washing branch 20, interior cleaning part 22, collection device 24, exterior washings branch 30, outer cleaning part 311, External contact part 312, branch connector portions 32, microswitch 33, core assembly 34, control valve 40 and pressure switch component 50.

When exterior washings component 31 is not loaded into branch connector portions 32, control valve 40 is in interior conducting position, internal washing branch 20 conducting, exterior washings branch 30 close, driving device 13 drive device for storing liquid 11 liquid enter steam generator 12 and The cleansing medium of steam condition is formed under the heating of the heating member of steam generator 12, cleansing medium is flowed out by going out media port 101 And entering internal washing branch 20, cleansing medium then passes through interior cleaning part 22 and sprays, and can carry out to the inside of oil suction press Cleaning.Cleansing medium a part of ejection enters atmosphere, and a part is flowed into after the surface condensation of internal part 23 to be cleaned and collected Device 24, the fouls such as greasy dirt under cleaning enter collection device 24 with condensate liquid.

When needing to clean the outside of range hood, exterior washings component 31 and branch connector portions 32 are carried out first Assembly.Specifically, the press section 3143 of the external contact part 312 of Manual press exterior washings component 31 presses the second elastic component 315 Contracting, hook head 3141 is mobile to the direction far from card slot 321, and control external contact part 312 is inserted into branch connector portions 32, junction block 313 only support with spool 341, and elastic force is overcome to compress the first elastic component 342, and core assembly 34 is moved to open position, and fluid is logical The outlet of road conducting branches connector portions 32 and the import of external contact part 312, at this point, hook head 3141 is moved to and card slot 321 Position is corresponding.Stop pressing press section 3143, hook head 3141 is resetted and is caught under the elastic reaction of the second elastic component 315 In card slot 321, external contact part 312 and the clamping of branch connector portions 32 form check valve assembly, realize exterior washings component 31 and branch The connection in pipeline connector portion 32, exterior washings component 31 and branch connector portions 32 are connected.

Microswitch 33 is triggered in the contact 331 that microswitch 33 is only supported while hook head 3141 is caught in card slot 321, micro- Dynamic switch 33 controls control valve 40 and is powered in outer conducting position, and exterior washings branch 30 is connected, and internal washing branch 20 is closed, clearly It washes medium and successively passes through control valve 40, branch connector portions 32 and external contact part 312, into the outer cleaning part of exterior washings component 31 311, the switch block for pressing outer cleaning part 311 opens outer cleaning part 311, and cleansing medium can be sprayed by outer cleaning part 311, The outside of range hood is cleaned.

When outer 311 long-time of cleaning part is in off working state, the pressure of cleansing medium feeding assembly 10 and out Jie Pressure between matter mouth 101 and control valve 40 increases, and when pressure reaches the second predetermined pressure, the second relief valve 14 is let out Pressure, while pressure switch component 50 controls control valve 40 and is located at interior conducting position, internal washing branch 20 is connected, exterior washings branch 30 disconnect, and so that cleansing medium is entered 20 pairs of inside of internal washing branch part 23 to be cleaned and clean, to reduce cleaning system 100 Interior pressure.

When exterior washings component 31 removes, core assembly 34 resets under the elastic force effect of the second elastic component 315, seals Portion 343 is bonded with the end of branch inner connecting tube 323 again, and the outlet of branch connector portions 32 is automatically closed, and cleaning can be prevented to be situated between Matter leakage and the generation of injury accident.Hook head 3141 triggers microswitch 33, and microswitch 33 controls at 40 power-off of control valve In interior conducting position, internal washing branch 20 is connected, and exterior washings branch 30 is closed.

Embodiment two:

As shown in Fig. 2, Fig. 9 and Figure 10, cleaning system 100 includes device for storing liquid 11, steam generator 12, driving device 13, the second relief valve 14, internal washing branch 20, pressure valve 21, interior cleaning part 22, collection device 24, exterior washings branch 30, Outer cleaning part 311, external contact part 312, branch connector portions 32 and core assembly 34.

When exterior washings component 31 is not loaded into branch connector portions 32, internal washing branch 20 and exterior washings branch 30 are closed It closes, driving device 13 drives the liquid of device for storing liquid 11 to enter steam generator 12 and adding in the heating member of steam generator 12 The cleansing medium that steam condition is formed under heat increases the pressure in internal washing branch 20 and exterior washings branch 30, works as pressure When power reaches the first predetermined pressure, pressure valve 21 is opened, and internal washing branch 20 is connected, and exterior washings branch 30 is closed, cleaning Medium flows out into internal washing branch 20 by going out media port 101, and cleansing medium then passes through interior cleaning part 22 and sprays, can be with The inside of oil suction press is cleaned.Cleansing medium a part of ejection enters atmosphere, and a part is in internal part 23 to be cleaned Surface condensation after flow into collection device 24, the fouls such as greasy dirt under cleaning enter collection device 24 with condensate liquid.

When needing to clean the outside of range hood, exterior washings component 31 and branch connector portions 32 are carried out first Assembly, assembling process is identical as process described in embodiment 1, and this will not be detailed here.

After exterior washings component 31 is packed into branch connector portions 32, exterior washings branch 30 is connected, and opens outer cleaning part 311 Switch block, cleansing medium are sprayed by outer cleaning part 311 with the cleaning of the outside for range hood, make internal washing branch 20 Interior pressure decline, pressure value are close to zero lower than the second predetermined pressure, and pressure valve 21 is automatically closed, and internal washing branch 20 closes It closes.

When outer 311 long-time of cleaning part is in off working state or exterior washings component 31 removes, internal washing branch The pressure on road 20 can increase, and when being higher than the second predetermined pressure again, pressure valve 21 can be again turned on, and internal washing branch 20 is led Logical, cleansing medium is sprayed by interior cleaning part 22 to clean to internal part 23 to be cleaned.The 4th of second relief valve 14 is predetermined The threshold pressure of pressure is greater than the second predetermined pressure of pressure valve 21, therefore, in trouble-proof situation, the second relief valve 14 will not act.

Embodiment three:

As shown in Fig. 3, Fig. 4-Fig. 9, cleaning system 100 include device for storing liquid 11, steam generator 12, driving device 13, Second relief valve 14, internal washing branch 20, interior cleaning part 22, collection device 24, exterior washings branch 30, outer cleaning part 311, External contact part 312, branch connector portions 32, microswitch 33, core assembly 34, control valve 40, pressure release branch 60 and the first pressure release Valve 61.

When exterior washings component 31 is not loaded into branch connector portions 32, control valve 40 is in interior conducting position, internal washing branch 20 conductings, exterior washings branch 30 are closed, and pressure release branch 60 is closed.Driving device 13 drives the liquid of device for storing liquid 11 to enter steaming The cleansing medium of steam condition is formed under the heating of vapour generator 12 and the heating member in steam generator 12, cleansing medium is by going out Media port 101 flows out into internal washing branch 20, and cleansing medium then passes through interior cleaning part 22 and sprays, can be to oil suction pressure The inside of machine is cleaned.Cleansing medium a part of ejection enters atmosphere, and a part is cold on the surface of internal part 23 to be cleaned Collection device 24 is flowed into after solidifying, the fouls such as greasy dirt under cleaning enter collection device 24 with condensate liquid.

When needing to clean the outside of range hood, exterior washings component 31 and branch connector portions 32 are carried out first Assembly, assembling process is identical as process described in embodiment 1, and this will not be detailed here.

In exterior washings component 31 and 32 assembling process of branch connector portions, hook head 3141 stops while being caught in card slot 321 Microswitch 33 is triggered in contact 331 to microswitch 33, and microswitch 33 controls control valve 40 and is powered in outer conducting position, Exterior washings branch 30 is connected, and internal washing branch 20 is closed, and pressure release branch 60 is closed.Cleansing medium successively passes through control valve 40, branch connector portions 32 and external contact part 312 press outer cleaning part 311 into the outer cleaning part 311 of exterior washings component 31 Switch block open outer cleaning part 311, cleansing medium can be sprayed by outer cleaning part 311, to the outside of range hood into Row cleaning.

When outer 311 long-time of cleaning part is in off working state or exterior washings component 31 removes, pressure release branch 60 Pressure can increase, when pressure be higher than third predetermined pressure when, the first relief valve 61 open, pressure release branch 60 be connected, cleaning be situated between Matter is sprayed by pressure release branch 60 by interior cleaning part 22 to clean to internal part 23 to be cleaned.The 4th of second relief valve 14 The threshold pressure of predetermined pressure is greater than the third predetermined pressure of the first relief valve 61, therefore, in trouble-proof situation, the Two relief valves 14 will not act.

Range hood according to the utility model embodiment includes according to the utility model embodiment for range hood Cleaning system 100.It is above-mentioned beneficial due to being had according to the cleaning system 100 for range hood of the utility model embodiment Technical effect, therefore according to the range hood of the utility model embodiment can inside and outside carry out to range hood it is clear It washes, using more economical laborsaving, appearance is more neat and artistic, and operates simpler convenience, can satisfy more uses Demand.

It is constituted and is operated for ability according to other of the range hood of the utility model embodiment and cleaning system 100 Be for the those of ordinary skill in domain it is known, be not described in detail herein.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

In the description of this specification, the description of reference term " embodiment ", " specific embodiment ", " example " etc. means to tie Close at least one reality that the embodiment or example particular features, structures, materials, or characteristics described are contained in the utility model It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or show Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples Do not interfering, can be combined with each other in an appropriate manner in reconcilable situation.

Claims (10)

1. a kind of external contact part for range hood characterized by comprising

Shell, the shell have inlet end and an outlet end；

The shell is protruded into from the outlet end in one end of inner sleeve, the inner sleeve, and the other end of the inner sleeve stretches out institute State shell；

The inner sleeve is inserted into protruding into the shell and clearance fit from the input end in one end of junction block, the junction block One end, the other end of the junction block stretches out the shell.

2. the external contact part according to claim 1 for range hood, which is characterized in that further include:

Outer tube, one end housing of the outer tube is outside the inner sleeve and protrudes into the shell, the outer tube it is another The shell is stretched out in one end.

3. the external contact part according to claim 2 for range hood, which is characterized in that the outer peripheral surface of the inner sleeve It is equipped with external annular groove, the internal perisporium of the shell is equipped with annular protrusion, and annular protrusion is plugged in external annular groove It is interior.

4. the external contact part according to claim 3 for range hood, which is characterized in that one end of the outer tube is set There is outer bending edge, the end of the shell is equipped with in-flanges, and the outer bending edge backstop is between in-flanges and annular protrusion.

5. the external contact part according to claim 1 for range hood, which is characterized in that the two sides of the junction block are set There is limiting slot, the two side walls of the shell are equipped with retention bead, and retention bead is plugged in limiting slot.

6. the external contact part according to claim 1 for range hood, which is characterized in that the shell includes first shell Body and second shell, first shell are connected with second shell clamping or are connected by threaded fastener.

7. the external contact part according to claim 6 for range hood, which is characterized in that the first shell and described Locating slot and positioning protrusion are respectively equipped on the face relative to each other of second shell to the first shell and the second shell Body is positioned.

8. a kind of joint assembly for range hood, which is characterized in that including according to claim 1 described in any one of -7 External contact part for range hood.

9. a kind of cleaning system for range hood, which is characterized in that including according to claim 1 described in any one of -7 External contact part.

10. a kind of range hood, which is characterized in that including being used for range hood described according to claim 1 any one of -7 External contact part.