CN205372688U - Range hood - Google Patents

Abstract

The utility model discloses a range hood, cover the subassembly and be used for the chain of command to cover first face lid pushing structure and second face lid pushing structure that the subassembly was opened or was closed including the face, first face lid pushing structure includes first rocking arm and connects the first connecting rod between first rocking arm and face lid subassembly, pushing structure includes the second rocking arm and connects second face lid the second rocking arm with second connecting rod between the face lid subassembly. The utility model provides the angle that high face lid subassembly was opened.

Description

Range hood

Technical field

This utility model relates to household appliance technical field, particularly relates to range hood.

Background technology

It is known that in existing range hood, in order to improve the aesthetics of entirety, generally add cover assembly in side entering type range hood.Generally adopting two cover pushing structures in traditional cover assembly opening mechanism, each cover pushing structure is correspondingly arranged a push-rod assembly and promotes corresponding cover pushing structure to move back and forth, to realize the folding of cover assembly.Being usually provided with the fixing seat being fixed on deflector and the rocking arm being rotationally connected with on fixing seat in existing cover pushing structure, this rocking arm and cover assembly are rotationally connected, and promote rocking arm to rotate by push-rod assembly, thus realizing the folding of cover assembly.But owing to rocking arm is directly rotatably connected on cover assembly, cause the restriction being subject to rocking arm rotational angle so that the angle that cover assembly is opened is less.

Utility model content

Main purpose of the present utility model is in that to provide a kind of range hood, it is intended to improve the angle that cover assembly is opened.

To achieve these goals, this utility model provides a kind of range hood, and described range hood includes cover assembly and the first cover pushing structure opened or closed for chain of command cap assemblies and the second cover pushing structure；Described first cover pushing structure includes the first rocking arm and the first connecting rod being connected between the first rocking arm and cover assembly；Described second cover pushing structure includes the second rocking arm and the second connecting rod being connected between described second rocking arm and described cover assembly.

Preferably, described range hood also includes for promoting described second cover pushing structure to move back and forth the push-rod assembly to open or close described cover assembly；It is provided with straight-bar between described second cover pushing structure and described first cover pushing structure, one end of described straight-bar is fixed with described first cover pushing structure and is connected, the other end is fixed with described second cover pushing structure and is connected, and drive the first cover pushing structure to move back and forth by the second cover pushing structure, to open or close described cover assembly；

Described first cover pushing structure also includes the first fixing seat, and described first rocking arm is rotationally connected with the described first fixing seat, and one end of described first rocking arm and described first connecting rod is rotationally connected, to change the pushing direction of described first rocking arm promotion cover assembly folding；The other end of described first connecting rod and described cover assembly are rotationally connected；Described second cover pushing structure also includes the second fixing seat, and described second rocking arm is rotationally connected with the described second fixing seat, and one end of described second rocking arm and described second connecting rod is rotationally connected, to change the pushing direction of described second rocking arm promotion cover assembly folding；The other end of described second connecting rod and described cover assembly are rotationally connected.

Preferably, described range hood also includes deflector, and described cover assembly is rotationally connected by hinge and described deflector.

Preferably, described first cover pushing structure also includes pressure holding assembly and elastomeric element, and the described first fixing seat includes the first fixing plate, is positioned on the described first fixing plate two first gripper shoes being oppositely arranged；Described first rocking arm includes the first rotation body being rotationally connected with described two first gripper shoes and the first cursor being located on described first rotation body, described first cursor and described first connecting rod are rotationally connected, described first rotates body is provided with tongue, and described first rotation body is fixed with the first end of described straight-bar and is connected；Described pressure holding assembly and described two first gripper shoes are slidably connected, described elastomeric element is fixing with described two first gripper shoes to be connected, and be connected with described pressure holding assembly elasticity, to promote described pressure holding component slippage, and when described cover assembly closes, tongue described in described pressure holding assembly pressure holding, produces to promote the motive force of described cover assembly Guan Bi.

Preferably, there is between described two first gripper shoes the first fixing bar and the second fixing bar, described elastomeric element is torsion spring, described torsion spring includes being sheathed on the ring for fixing on the described first fixing bar and from the first elastic arm outward extending described ring for fixing and the second elastic arm, described first elastic arm abuts with the described second fixing bar, and described second elastic arm abuts with described pressure holding assembly.

Preferably, described pressure holding assembly includes movable latch and the first axle sleeve being sheathed in described movable latch, described two first gripper shoes are provided with mounting hole, the two ends of described movable latch lay respectively in the mounting hole of correspondence, described first axle sleeve is sheathed in described movable latch, and between described two first gripper shoes；Described second elastic arm abuts with described movable latch, to promote described movable latch to slide in described mounting hole.

Preferably, described first cover pushing structure also includes the first engaging latch, the second axle sleeve and the 3rd axle sleeve, above-mentioned two first gripper shoe correspondence positions have two first fixing holes being oppositely arranged and for housing described second axle sleeve or the 3rd axle sleeve, and described first rotates body is provided with the first hole clipping；Wherein, described second axle sleeve and the 3rd axle sleeve are positioned at the first fixing hole of correspondence, are connected with described first gripper shoe interference；First end of described first engaging latch is provided with the first snap ring, and the second end is fixed with the first end of described straight-bar and is connected；First end of described first engaging latch sequentially passes through described second axle sleeve, the first hole clipping and the 3rd axle sleeve and is fixed with described first snap ring and is connected, and described first engaging latch is connected with described second axle sleeve and the 3rd axle sleeve interference, and being fixed with described first hole clipping is connected.

Preferably, the first end of described straight-bar caves inward and forms the first accommodating hole, and the inwall of described first accommodating hole caves inward and forms at least one first screens groove, and described first screens groove runs through the first end of described straight-bar；Second end of above-mentioned first engaging latch is placed in described first accommodating hole, and the position of corresponding first screens groove is provided with the first screens projection adaptive with described first screens groove.

Preferably, described second cover pushing structure includes: the second fixing seat, the second rocking arm being rotationally connected with the described second fixing seat and the second connecting rod being rotationally connected with described second rocking arm, what described second rocking arm included being rotationally connected with the described second fixing seat second rotates body and is located at the described second the second cursor rotating on body and the 3rd cursor, described second rotation body is fixed with the second end of described straight-bar and is connected, described second cursor and push-rod assembly are rotationally connected, one end of described 3rd cursor and described second connecting rod is rotationally connected, to change the pushing direction of described second rocking arm promotion cover assembly folding；The other end of described second connecting rod and described cover assembly are rotationally connected.

Preferably, described second cover pushing structure also includes the second engaging latch, the 4th axle sleeve and the 5th axle sleeve, described two second gripper shoe correspondence positions have two second fixing holes being oppositely arranged and for housing described 4th axle sleeve or the 5th axle sleeve, and described second rotates body is provided with the second hole clipping；Wherein, described 4th axle sleeve and the 5th axle sleeve are positioned at the second fixing hole of correspondence, are connected with described second gripper shoe interference；First end of described second engaging latch is provided with the second snap ring, and the second end is fixed with the second end of described straight-bar and is connected；First end of described second engaging latch sequentially passes through described 4th axle sleeve, the second hole clipping and the 5th axle sleeve and is fixed with described second snap ring and is connected, and described second engaging latch is connected with described 4th axle sleeve and the 5th axle sleeve interference, and being fixed with described second hole clipping is connected.

Preferably, the first end of straight-bar caves inward and forms the first accommodating hole, and the inwall of described first accommodating hole caves inward and forms at least one first screens groove, and described first screens groove runs through the first end of described straight-bar；Second end of above-mentioned first engaging latch is placed in described first accommodating hole, and the position of corresponding first screens groove is provided with the first screens projection adaptive with described first screens groove.

This utility model embodiment promotes the pushing direction of cover assembly folding by adopting first connecting rod to change the first rocking arm, hence in so that the strong point of promotion cover assembly rotation and the first rocking arm promote the distance between the application point that cover assembly rotates to change；Adopt second connecting rod to change the second rocking arm simultaneously and promote the pushing direction of cover assembly folding, hence in so that promote the distance between the strong point of cover assembly rotation and the application point of the second rocking arm promotion cover assembly rotation to change, thus improve the angle that cover assembly is opened.Therefore improve the angle that cover assembly is opened.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to the structure according to these accompanying drawings obtains other accompanying drawing.

Fig. 1 is the detonation configuration schematic diagram of this utility model range hood one embodiment；

Fig. 2 is the structural representation that in this utility model range hood one embodiment, push-rod assembly closes cover assembly；

Fig. 3 is the structural representation that in this utility model range hood one embodiment, push-rod assembly opens cover assembly；

Fig. 4 is the package assembly schematic diagram of the first cover pushing structure in this utility model range hood one embodiment；

Fig. 5 is the detonation configuration schematic diagram of the first cover pushing structure in this utility model range hood one embodiment；

Fig. 6 is the first cover pushing structure status architecture schematic diagram when opening cover assembly in this utility model range hood one embodiment；

Fig. 7 is the first cover pushing structure status architecture schematic diagram when closing cover assembly in this utility model range hood one embodiment；

Fig. 8 is the package assembly schematic diagram of the second cover pushing structure in this utility model range hood one embodiment；

Fig. 9 is the detonation configuration schematic diagram of the second cover pushing structure in this utility model range hood one embodiment；

Figure 10 is the structural representation of straight-bar in this utility model range hood one embodiment.

The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.

Drawing reference numeral illustrates:

Label	Title	Label	Title
				10	Cover assembly	113	First fixing bar
11	First fixing seat	114	Second fixing bar
				12	First rocking arm	121	First rotates body
13	Pressure holding assembly	1211	Tongue
				14	Elastomeric element	1212	First hole clipping
15	Deflector	122	First cursor
				16	First connecting rod	131	Movable latch
17	Push-rod assembly	132	First axle sleeve
				18	Second fixing seat	151	Strengthen pad
19	Second rocking arm	152	Fixed support
				20	Second connecting rod	171	Linear drive apparatus
21	Straight-bar	173	Connecting rod
				22	First engaging latch	191	Second rotates body
23	Second axle sleeve	1911	Second hole clipping
				24	3rd axle sleeve	192	Second cursor
25	Second engaging latch	193	3rd cursor
				26	4th axle sleeve	211	First accommodating hole
27	5th axle sleeve	212	First screens groove
				111	First fixing plate	213	Second screens groove
112	First gripper shoe	221	First snap ring
				1121	Mounting hole	251	Second snap ring

Detailed description of the invention

Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.

Need explanation, in this utility model embodiment, directional instruction (such as up, down, left, right, before and after ...) is only for explaining relative position relation between each parts, motion conditions etc. under a certain particular pose (as shown in drawings), if this particular pose changes, then directionality instruction also correspondingly changes therewith.

It addition, relate to the description of " first ", " second " etc. in this utility model only for descriptive purposes, and it is not intended that instruction or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.Additionally; technical scheme between each embodiment can be combined with each other; but must be based on those of ordinary skill in the art are capable of; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme is absent from, also not this utility model require protection domain within.

This utility model provides a kind of range hood, referring to figs. 1 through Fig. 5, in one embodiment, this range hood includes cover assembly the 10, first cover pushing structure, the second cover pushing structure and for promoting described second cover pushing structure to move back and forth push-rod assembly 17 to open or close described cover assembly 10.

Above-mentioned first cover pushing structure and the second cover pushing structure are used for promoting cover assembly 10 folding.

Above-mentioned first cover pushing structure includes the first fixing seat 11 being installed on deflector 15 back side, and it is located at the first rocking arm 12 on the described first fixing seat 11, pressure holding assembly 13 and elastomeric element 14, one end of described first rocking arm 12 is rotationally connected with the described first fixing seat 11, the other end and described cover assembly 10 are rotationally connected, to promote described cover assembly 10 to close or open；Described elastomeric element 14 abuts with described pressure holding assembly 13, and when described cover assembly 10 closes, the first rocking arm 12 described in the pressure holding of described pressure holding assembly 13, so that described first rocking arm 12 produces to promote the motive force of described cover assembly 10 Guan Bi.

In the present embodiment, the described above first fixing seat 11 includes the first fixing plate 111, is positioned on the described first fixing plate 111 two first gripper shoes 112 being oppositely arranged；Described first rocking arm 12 includes the first rotation body 121 being rotationally connected with described two first gripper shoes 112 and the first cursor 122 being located on described first rotation body 121, described first cursor 122 is rotationally connected with described cover assembly 10, and described first rotates body 121 is provided with tongue 1211；Described pressure holding assembly 13 is slidably connected with described two first gripper shoes 112, described elastomeric element 14 is fixing with described two first gripper shoes 112 to be connected, and be connected with described pressure holding assembly 13 elasticity, to promote described pressure holding assembly 13 to slide, and when described cover assembly 10 closes, tongue 1211 described in the pressure holding of described pressure holding assembly 13, produces to promote the motive force of described cover assembly 10 Guan Bi.

In this utility model embodiment, above-mentioned range hood also includes deflector 15, above-mentioned cover assembly 10 is rotated by hinge and is installed on deflector 15, above-mentioned first cover pushing structure can promote cover assembly 10 along the axis of rotation of hinge, to realize the folding of cover assembly 10, specifically, the driving force of above-mentioned first cover pushing structure can be configured according to actual needs, such as can arrange motor to be driven, it is also possible to arrange cylinder and be driven.It is not further limited at this.

Specifically, between above-mentioned two first gripper shoes 112, it is provided with gap, is used for housing above-mentioned first rocking arm 12, pressure holding assembly 13 and elastomeric element 14, and the first rocking arm 12 can relatively rotate.In the present embodiment, this the first fixing seat 11 is fixed on the back side of above-mentioned deflector 15, such as, above-mentioned first fixing plate 111 can arrange fixing hole and locating dowel, a reinforcement pad 151 is fixed in the welding of the back side of deflector 15 or other modes, reinforcement pad 151 is correspondingly arranged fixing hole and hole, location, is realized by screw fixing.It is provided with reinforcement pad between plate 111 and deflector 15 owing to fixing first, is therefore possible to prevent deflector 15 to deform, improve the stability that the first fixing plate 111 is fixing with deflector 15.

It is understandable that, in order to facilitate installation can arrange hole, some location on above-mentioned reinforcement pad 151, above-mentioned first fixing plate 111 correspondence position arranges some locating dowels, thus the cooperation that can first pass through hole, location and locating dowel when mounted realizes location, to facilitate installation.

When assembling, above-mentioned second cover pushing structure is the cover pushing structure promoting mainly power, and the first cover pushing structure is the cover pushing structure from motive force.Specifically, above-mentioned second cover pushing structure can be configured according to actual needs, this the second cover pushing structure and a push-rod assembly 17 connect, and this push-rod assembly 17 can promote this second cover pushing structure reciprocating rotary, and the folding to realize cover assembly controls.In the present embodiment, above-mentioned first cover pushing structure and the second cover pushing structure are separately positioned on the two ends, left and right of cover assembly 10, it is provided with straight-bar 21 between this first cover pushing structure and the second cover pushing structure, is driven the first cover pushing structure motion by this straight-bar 21 by the second cover pushing structure.

The structure of above-mentioned tongue 1211 can be configured according to actual needs, in the present embodiment, above-mentioned tongue 1211 is an arc convex structure and above-mentioned pressure holding assembly 13 is positioned at top the sliding above to lower section from tongue 1211 that the outside of tongue 1211 can extend through tongue 1211, it is also possible to from the slid underneath of tongue 1211 to top.Specifically, when cap assemblies 10 is opened face to face, pressure holding assembly 13 is positioned at below tongue 1211, to tongue 1211 without supporting effect.In the process that above-mentioned push-rod assembly 17 promotes above-mentioned cover assembly 10 to close, tongue 1211 will rotate in the counterclockwise direction, the top making tongue 1211 becomes closer to pressure holding assembly 13 (as shown in Figure 6), when push-rod assembly 17 promotion makes cover assembly 10 close, the top of tongue 1211 crossed by above-mentioned pressure holding assembly 13, it is positioned at the top of tongue 1211 tongue 1211 described in pressure holding.Now, promotion pressure holding assembly 13 is slided by elastomeric element 14, with the further motive force (as shown in Figure 7) producing to promote described cover assembly 10 Guan Bi, so that tongue 1211 rotates preset position in the counterclockwise direction at this, due to after push-rod assembly promotes cover assembly 10 Guan Bi, pressure holding assembly 13 pressure holding tongue 1211 is promoted by elastomeric element 14, thus driving tongue 1211 to rotate in the counterclockwise direction, therefore can so that cover assembly 10 tight close, prevent cover assembly 10 from there is gap with deflector 15 when Guan Bi, affect aesthetics, even result in dust to be easily accessible in range hood.

This utility model embodiment is by adopting with lower cover pushing structure, cover pushing structure includes first fixing seat the 11, first rocking arm 12, pressure holding assembly 13 and elastomeric element 14, and the wherein said first fixing seat 11 includes the first fixing plate 111, is positioned on the described first fixing plate 111 two first gripper shoes 112 being oppositely arranged；Described first rocking arm 12 includes the first rotation body 121 being rotationally connected with described two first gripper shoes 112 and the first cursor 122 being located on described first rotation body 121, described first cursor 122 is rotationally connected with described cover assembly 10, and described first rotates body 121 is provided with tongue 1211；Described pressure holding assembly 13 is slidably connected with described two first gripper shoes 112, described elastomeric element 14 is fixing with described two first gripper shoes 112 to be connected, and be connected with described pressure holding assembly 13 elasticity, to promote described pressure holding assembly 13 to slide, and when described cover assembly 10 closes, tongue 1211 described in the pressure holding of described pressure holding assembly 13, produces to promote the motive force of described cover assembly 10 Guan Bi.Thus when cover assembly 10 closes, elastomeric element 14 promoting pressure holding assembly 13 pressure holding tongue 1211, to produce to promote the motive force of described cover assembly 10 Guan Bi so that cover assembly 10 tight close, therefore improve the reliability of cover assembly 10 Guan Bi.

Further, based on above-described embodiment, in the present embodiment, there is between above-mentioned two first gripper shoes 112 first fixing bar 113 and the second fixing bar 114, described elastomeric element 14 is torsion spring, described torsion spring includes being sheathed on the described first ring for fixing fixing on bar 113 and from the first elastic arm outward extending described ring for fixing and the second elastic arm, and described first elastic arm abuts with the described second fixing bar 114, and described second elastic arm abuts with described pressure holding assembly 13.

In the present embodiment, the structure of above-mentioned pressure holding assembly 13 can be configured according to actual needs, such as, above-mentioned pressure holding assembly 13 includes movable latch 131 and the first axle sleeve 132 being sheathed in described movable latch 131, described two first gripper shoes 112 are provided with mounting hole 1121, the two ends of described movable latch 131 lay respectively in the mounting hole 1121 of correspondence, and described first axle sleeve 132 is sheathed in described movable latch 131, and between described two first gripper shoes 112；Described second elastic arm abuts with described movable latch 131, to promote described movable latch 131 to slide in described mounting hole 1121.In the present embodiment, the structure of above-mentioned first axle sleeve 132 can be configured according to actual needs, it is preferable that, above-mentioned first axle sleeve includes outer shaft and internal axle sleeve, this outer shaft and internal axle sleeve can relatively rotate, and this internal axle sleeve is sheathed in movable latch 131, is connected with movable latch 131 interference.

Specifically, in the present embodiment, above-mentioned second elastic arm includes two elastic arms be arrangeding in parallel, lays respectively at above-mentioned first axle sleeve 132 both sides, and abuts with movable latch 131.The shape of one end that this second elastic arm contacts with movable latch 131 can be configured according to actual needs, it is preferable that one end that this second elastic arm contacts with movable latch 131 is hook-shaped, is articulated in this movable latch.

It is understood that the length of above-mentioned mounting hole 1121 can be configured according to actual needs, do not limit further at this.Specifically, above-mentioned movable latch 131 can be slided in mounting hole 1121.When cap assemblies 10 is in open mode face to face, movable latch 131 is positioned at the mounting hole 1121 side away from the first fixing bar 113；Promoting in the process that cover assembly 10 closes at above-mentioned push-rod assembly 17, movable latch 131 is to a side shifting of the fixing bar 113 of mounting hole close first, and compresses torsion spring so that torsion spring produces elastic deformation.When push-rod assembly 17 promotes cover assembly 10 to close, top through tongue 1211 is positioned at the top of tongue 1211 by above-mentioned first axle sleeve 132, now promote movable latch 131 to mounting hole 1121 away from the first Slideslip fixing bar 113 under the elastic return active force of torsion spring, thus producing the motive force promoting described cover assembly 10 to close so that cover assembly 10 tight close.

Further, based on above-described embodiment, in the present embodiment, above-mentioned first cursor 122 is perpendicular to the described first rotating shaft direction rotating body 121 and arranges.

In the present embodiment, above-mentioned first cursor 122 can be stretched out by the first periphery rotating body 121 and be formed, in this first cursor 122 and the first rotation body 121 are generally aligned in the same plane.Above-mentioned rotation axle this plane vertical, the shape of this first cursor can be configured according to actual needs, does not limit further at this.

Further, based on above-described embodiment, in the present embodiment, above-mentioned first cover pushing structure also includes first connecting rod 16, one end of described first connecting rod 16 is connected with described first cursor 122, the other end is connected with described cover assembly 10, promotes the pushing direction of cover assembly 10 folding changing the first rocking arm 12.

In the present embodiment, the shape of above-mentioned first connecting rod 16 can be configured according to actual needs, for instance, in the present embodiment, above-mentioned first connecting rod 16 is preferably curved setting.Specifically, this first connecting rod 16 can be substantially that " 7 " sub-shape is arranged, and its one end and the first cursor 122 are rotationally connected, and the other end and cover assembly 10 are rotationally connected.The pushing direction of cover assembly 10 folding is promoted owing to adopting first connecting rod 16 to change the first rocking arm 12, hence in so that the strong point of promotion cover assembly 10 rotation and the first rocking arm 12 promote the distance between the application point that cover assembly 10 rotates to change, thus improve the angle that cover assembly 10 is opened.

It is understood that be directly connected to realize the folding of cover assembly by rocking arm and top panel assembly, can also being realized the increase of folding angle by the swing arm of lengthened rocker arm, but it needs bigger space, the perforate on deflector also can be very big.So rocking arm and upper cover folding limited angle in the confined space.After adding connecting rod, the cover folding of wide-angle can be realized under the confined space, less deflector opening.

Please combine with reference to Fig. 8 to Fig. 9 in the lump, described second cover pushing structure includes: the second fixing seat 18, the second rocking arm 19 being rotationally connected with the described second fixing seat 18 and the second connecting rod 20 being rotationally connected with described second rocking arm 19, what described second rocking arm 19 included being rotationally connected with the described second fixing seat 18 second rotates body 191 and is located at the described second the second cursor 192 and the 3rd cursor 193 rotating on body 191, described second cursor 192 is rotationally connected with push-rod assembly 17, one end of described 3rd cursor 193 and described second connecting rod 20 is rotationally connected, promote the pushing direction of cover assembly 10 folding changing described second rocking arm 19；The other end of described second connecting rod 20 and described cover assembly 10 are rotationally connected.

In the present embodiment, the pushing direction of cover assembly 10 folding is promoted owing to adopting second connecting rod 20 to change the second rocking arm 19, hence in so that the strong point of promotion cover assembly 10 rotation and the second rocking arm 19 promote the distance between the application point that cover assembly 10 rotates to change, thus improve the angle that cover assembly 10 is opened.

In the present embodiment, cover assembly 10 is rotationally connected by hinge and deflector 15, and the folding angle of hinge is big, it is possible to increase the angle that cover assembly 10 is opened.

Specifically, the above-mentioned second fixing seat 18 includes the second fixing plate and two second gripper shoes being oppositely arranged on this second fixing plate, has gap between this two second gripper shoe.Above-mentioned second rotates body 191 is arranged between this two second gripper shoe, and is rotationally connected with two second gripper shoes.In the present embodiment, the above-mentioned second fixing seat 18 is fixed on deflector 15 back side of range hood, specifically, deflector 15 is provided with fixed support 152, this fixed support 152 is arranged in strip, and one end is fixed with the second fixing seat 18 and is connected, and the other end and above-mentioned push-rod assembly 17 are rotationally connected.Fixed support 152 can be fixedly mounted on deflector 15 by screw, it is also possible to is fixed on deflector 15 by the mode welded.

It is understandable that, in order to facilitate installation can arrange hole, some location on above-mentioned fixed support 152, above-mentioned second fixing plate correspondence position arranges some locating dowels, thus the cooperation that can first pass through hole, location and locating dowel when mounted realizes location, to facilitate installation.

Specifically, above-mentioned push-rod assembly 17 includes: linear drive apparatus 171, catch bar and connecting rod 173, one end of wherein said catch bar is connected with described driving device 171, the other end is connected with described connecting rod 173, and described connecting rod 173 can moving axially along described catch bar, and there is at least two fixed bit；Described linear drive apparatus 171 drives described connecting rod 173 to carry out contractile motion by described catch bar；Described connecting rod 173 is rotationally connected with described second cursor 192.

In the present embodiment, above-mentioned push-rod assembly 17 is mainly used in range hood, carries out opening or closing generation driving force for opposite cap assemblies 20.Push-rod assembly 17 is by promoting the second cursor 192 to move back and forth, thus being driven cover assembly 10 to realize open and close movement by the 3rd cursor 193, to open or close cover assembly 10.

Specifically, above-mentioned connecting rod 173 and catch bar 172 are coaxially connected, and the overall adjustable length of catch bar 172 and connecting rod 173 composition.In the present embodiment, can axially there is relative movement along catch bar 172 in above-mentioned connecting rod 173, to change catch bar 172 and the overall length of connecting rod 173 composition.

Should be noted that, the connected mode of above-mentioned connecting rod 173 and catch bar 172 can be configured according to actual needs, such as can adopt the mode of being slidably connected, and two or more fixed bit is set in the track slided, when connecting rod 173 is positioned at corresponding busy hour fixed, it is possible to restriction connecting rod 173 sliding axially along catch bar 172.When needs are adjusted, it is possible to carried out corresponding operation adjustment connecting rod 173 by user and be positioned at different fixed positions, to meet catch bar 172 and the entire length demand of connecting rod 173 composition, install thus convenient.

The push-rod assembly 17 that this utility model embodiment provides includes linear drive apparatus 171, catch bar and connecting rod 173, one end of wherein said catch bar is connected with described driving device 171, the other end is connected with described connecting rod 173, and described connecting rod 173 can moving axially along described catch bar, and there is at least two fixed bit；Described linear drive apparatus 171 drives described connecting rod 173 to carry out contractile motion by described catch bar.It is achieved thereby that the overall adjustable length of catch bar 172 and connecting rod 173 composition, therefore when mounted, it is possible to reduce the installation difficulty of push-rod assembly 17 and the second rocking arm 19.

It is understood that the connected mode of above-mentioned catch bar 172 and connecting rod 173 can be configured according to actual needs, in the present embodiment, it is preferable that above-mentioned connecting rod 173 is threadeded with described catch bar 172.Such as above-mentioned catch bar 172 away from described linear drive apparatus 171 one end along catch bar 172 depression axially inwards formed accommodating hole, it is provided with female thread structure in described accommodating hole, one end of described connecting rod 173 is provided with the external thread structure adaptive with described female thread structure, and the other end is provided with the fixed part being flexibly connected with described second cursor 192.

In the present embodiment, it is adopt threaded mode to be attached catch bar 172 and connecting rod 173, and connecting rod 173 is inserted in catch bar 172, in other examples, it is also possible to both structures are carried out intermodulation.Such as, catch bar 172 arranges external thread structure, connecting rod 173 arranges accommodating hole, and female thread structure is set in accommodating hole.

In use, by the bar 173 that is rotatably connected, thus connecting rod 173 is screwed out or screws in, thus changing catch bar 172 and the overall length of connecting rod 173 composition.

It is understood that in the present embodiment, above-mentioned linear drive apparatus 11 is cylinder or motor.Should illustrate, when above-mentioned linear drive apparatus 11 is direct current generator, in order to simplify the structure of push-rod assembly 10, in the present embodiment, it is preferable that, above-mentioned catch bar is screw rod, described catch bar is provided with the nut adaptive with described screw rod, and described nut sleeve is located on described screw rod, and described linear drive apparatus 11 is direct current generator, the rotating shaft of described direct current generator is fixing with described screw rod to be connected, to control the rotation of described screw rod.

Further, based on above-described embodiment, in the present embodiment, fixation portions is the fixing hole being located in described connecting rod 173, described fixing hole be axially perpendicular to the axial of described connecting rod 173.

In the present embodiment, the shape of above-mentioned connecting rod 173 and catch bar 172 can be configured according to actual needs, it is preferable that above-mentioned catch bar 172 is arranged in cylinder；Above-mentioned connecting rod 173 is that cylinder is arranged near one end of described catch bar 172, and the one end away from described catch bar 172 is that cuboid is arranged.Fixation portions can be arranged on this cuboid position.Specifically, above-mentioned second cursor 192 is provided with the axle adaptive with this fixing hole, during installation, is inserted in this fixing hole by this axle, so that connecting rod 173 and the second cursor 192 are rotationally connected.

It is understood that in other embodiments, fixation portions can also be other structure, for instance this fixed part is axle, is provided with fixing hole on the second cursor 192 correspondence position.

Further, based on above-described embodiment, in the present embodiment, above-mentioned second cursor 192 and the 3rd cursor 193 are each perpendicular to the described second rotating shaft direction rotating body 191 and arrange；Described second cursor 192 and the 3rd cursor 193 stretch out in outer " eight " shape.

In the present embodiment, in above-mentioned second cursor 192 and the 3rd cursor 193 are generally aligned in the same plane, and this plane is perpendicular to the rotating shaft direction of the second rotation body 191.Specifically, above-mentioned second cursor 192 and the 3rd cursor 193 are that outer " eight " shape rotates the distance of body 191 side more than the rotation distance rotating body 191 side near described second particularly as follows: be located remotely from described second between described second cursor 192 and the 3rd cursor 193.

It is understood that the shape of above-mentioned second connecting rod 20 can be configured according to actual needs, for instance, in the present embodiment, above-mentioned second connecting rod 20 is preferably curved setting.Specifically, this second connecting rod 20 can be substantially that " 7 " shape is arranged, and its one end and the 3rd cursor 193 are rotationally connected, and the other end and cover assembly 10 are rotationally connected.

Further, based on above-described embodiment, in the present embodiment, between above-mentioned first cover pushing structure and the second cover pushing structure, it is provided with straight-bar 21, one end of described straight-bar 21 is fixing with described first rotation body 121 to be connected, and the other end is fixing with described second rotation body 191 to be connected.

In the present embodiment, above-mentioned straight-bar 21 is the rotation axle of the first rotation body 121 and the second rotation body 191, and the first rotation body 121 and the second rotation body 191 lay respectively at the two ends of straight-bar 21, are all fixed with straight-bar 21 and are connected.

It should be noted that, this straight-bar 21 and first rotates body 121 and the second mode of being fixed rotating body 191 can be configured according to actual needs.Please combine with reference to Figure 10 in the lump, such as, above-mentioned first cover pushing structure also includes the first engaging latch the 22, second axle sleeve 23 and the 3rd axle sleeve 24, above-mentioned two first gripper shoe 112 correspondence positions have two first fixing holes being oppositely arranged and for housing described second axle sleeve 23 or the 3rd axle sleeve 24, and described first rotates body 121 is provided with the first hole clipping 1212；Wherein, described second axle sleeve 23 and the 3rd axle sleeve 24 are positioned at the first fixing hole of correspondence, are connected with described first gripper shoe 112 interference；First end of described first engaging latch 22 is provided with the first snap ring 221, and the second end is fixed with the first end of described straight-bar 21 and is connected；First end of described first engaging latch 22 sequentially passes through described second axle sleeve the 23, first hole clipping 1212 and the 3rd axle sleeve 24 is fixed with described first snap ring 221 and is connected, and described first engaging latch 22 is connected with described second axle sleeve 23 and the 3rd axle sleeve 24 interference, and being fixed with described first hole clipping 1212 is connected.

In the present embodiment, above-mentioned second axle sleeve 23 and the 3rd axle sleeve 24 all include inner collar and external toroidal ring, wherein inner collar and external toroidal ring can be freely rotatable, wherein external toroidal ring is connected with above-mentioned fixing hole interference fit, inner collar is sheathed on the first engaging latch 22, and is connected with the first engaging latch 22 interference fit.

Above-mentioned first snap ring 221 engages latch 22 connected mode that is fixed and can be configured according to actual needs with first, such as, in the present embodiment, first end circumference of this first engaging latch 22 is provided with first annular groove, first snap ring 221 is for having annular slab jaggy, and the inner ring of annular slab is extended with some projections to center, the external diameter of outer ring is more than the internal diameter of the 3rd axle sleeve 24.

The structure of above-mentioned first hole clipping 1212 can be configured according to actual needs, in the present embodiment, the first hole clipping 1212 can be ellipticity, forms a limited step at the position at the above-mentioned first position engaging corresponding first hole clipping 1212 of latch 22 and corresponding second axle sleeve 23.In other embodiments, it is also possible to adopt other polygonal hole, for instance four corner apertures or hexagon ring etc..

It is understandable that, above-mentioned straight-bar 21 engages the mode of being fixed of latch 22 and can be configured according to actual needs with first, such as, first end of above-mentioned straight-bar 21 caves inward and forms the first accommodating hole 211, the inwall of described first accommodating hole 211 caves inward and forms at least one first screens groove 212, and described first screens groove 212 runs through the first end of described straight-bar 21；Second end of above-mentioned first engaging latch 22 is placed in described first accommodating hole 211, and the position of corresponding first screens groove 212 is provided with and the first screens projection of described first screens groove 212 adaptation.In the present embodiment, this first screens groove may also extend through the outer wall of described straight-bar 21, to form nick shaped.It should be noted that, in other embodiments, above-mentioned straight-bar 21 can also adopt other modes that is fixed, for instance, the structure that straight-bar 21 and the first engaging latch 22 are arranged is exchanged.

Specifically, above-mentioned first screens groove 212 is preferably two, and is symmetrical arranged.

In the present embodiment, engage the first screens projection in latch 22 by first and the breach in straight-bar 21 realizes straight-bar 21 and the first rotation body 121 and second rotates being connected together of body 191.First screens projection is multidiameter, and diameter smaller part inserts the inner circle of straight-bar 21, it is prevented that straight-bar 21 comes off radial direction.Coordinating of the breach of the first screens bump diameter larger part and straight-bar 21 so that second rotates the moment of torsion that body 191 produces can be conveyed on the first rotation body 121.The fit structure at straight-bar 21 two ends is similar, it is possible to make straight-bar 21 play the effect of transmission moment of torsion.This kind of structure is easily installed, and accuracy is high.

Above-mentioned straight-bar 21 rotates the mode of body 191 connection with second can be consistent with the first rotation body 121, it is also possible to inconsistent.Hereinafter this is described in detail:

Specifically, above-mentioned second cover pushing structure also includes the second engaging latch the 25, the 4th axle sleeve 26 and the 5th axle sleeve 27, above-mentioned two second gripper shoe correspondence positions have two second fixing holes being oppositely arranged and for housing described 4th axle sleeve 26 or the 5th axle sleeve 27, and described second rotates body 191 is provided with the second hole clipping 1911；Wherein, described 4th axle sleeve 26 and the 5th axle sleeve 27 are positioned at the second fixing hole of correspondence, are connected with described second gripper shoe interference；First end of described second engaging latch 25 is provided with the second snap ring 251, and the second end is fixed with the second end of described straight-bar 21 and is connected；First end of described second engaging latch 25 sequentially passes through described 4th axle sleeve the 26, second hole clipping 1911 and the 5th axle sleeve 27 is fixed with described second snap ring 251 and is connected, and described second engaging latch 25 is connected with described 4th axle sleeve 26 and the 5th axle sleeve 27 interference, and being fixed with described second hole clipping 1911 is connected.

In the present embodiment, above-mentioned 4th axle sleeve 26 and the 5th axle sleeve 27 all include inner collar and external toroidal ring, wherein inner collar and external toroidal ring can be freely rotatable, wherein external toroidal ring is connected with above-mentioned fixing hole interference fit, inner collar is sheathed on the second engaging latch 25, and is connected with the second engaging latch 25 interference fit.

Above-mentioned second snap ring 251 engages latch 25 connected mode that is fixed and can be configured according to actual needs with second, such as, in the present embodiment, first end circumference of this second engaging latch 25 is provided with the second annular groove, second snap ring 251 is for having annular slab jaggy, and the inner ring of annular slab is extended with some projections to center, the external diameter of outer ring is more than the internal diameter of the 5th axle sleeve 27.

The structure of above-mentioned second hole clipping 1911 can be configured according to actual needs, in the present embodiment, the second hole clipping 1911 can be ellipticity, forms a limited step at the position at the above-mentioned second position engaging corresponding second hole clipping 1911 of latch 25 and corresponding 4th axle sleeve 26.In other embodiments, it is also possible to adopt other polygonal hole, for instance four corner apertures or hexagon ring etc..

It is understandable that, above-mentioned straight-bar 21 engages the mode of being fixed of latch 25 and can be configured according to actual needs with second, such as, second end of above-mentioned straight-bar 21 caves inward and forms the second accommodating hole, the inwall of described second accommodating hole caves inward and forms at least one second screens groove 213, and described second screens groove 213 runs through the second end of described straight-bar 21；Second end of above-mentioned second engaging latch 25 is placed in described second accommodating hole, and the position of corresponding second screens groove 213 is provided with and the second screens projection of described second screens groove 213 adaptation.In the present embodiment, this second screens groove 213 may also extend through the outer wall of described straight-bar 21, to form nick shaped.It should be noted that, in other embodiments, above-mentioned straight-bar 21 can also adopt other modes that is fixed, for instance, the structure that straight-bar 21 and the second engaging latch 25 are arranged is exchanged.

Specifically, above-mentioned second screens groove 213 is preferably two, and is symmetrical arranged.

This utility model embodiment by being provided with straight-bar 21 between the second cover pushing structure and described first cover pushing structure, one end of described straight-bar 21 is fixed with described first cover pushing structure and is connected, the other end is fixed with described second cover pushing structure and is connected, and drive the first cover pushing structure to move back and forth by the second cover pushing structure, to open or close described cover assembly 10.Thus only needing a push-rod assembly 17 can realize the folding of cover assembly, therefore reduce the production cost of range hood.Additionally, due to the two ends of straight-bar 21 are fixed are connected with the first cover pushing structures and the second cover pushing structure respectively, therefore easy accessibility, reduces cost of transportation.

Meanwhile, in final assembly, the first cover pushing structure and the second cover pushing structure can pass through straight-bar 21 fixing connection in advance.Assembling can be made as a whole be fixedly connected with deflector 15.Fixing a sequence of mode can accelerate assembling speed for carrying out more than the fixing connection (can also be other connected modes such as connected mode such as staking) of screw from deflector opposite side, reduces production cost.

These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in scope of patent protection of the present utility model.

Claims (10)

1. a range hood, it is characterised in that include cover assembly and the first cover pushing structure opened or closed for chain of command cap assemblies and the second cover pushing structure；Described first cover pushing structure includes the first rocking arm and the first connecting rod being connected between the first rocking arm and cover assembly；Described second cover pushing structure includes the second rocking arm and the second connecting rod being connected between described second rocking arm and described cover assembly.

2. range hood as claimed in claim 1, it is characterised in that described range hood also includes for promoting described second cover pushing structure to move back and forth the push-rod assembly to open or close described cover assembly；It is provided with straight-bar between described second cover pushing structure and described first cover pushing structure, one end of described straight-bar is fixed with described first cover pushing structure and is connected, the other end is fixed with described second cover pushing structure and is connected, and drive the first cover pushing structure to move back and forth by the second cover pushing structure, to open or close described cover assembly；

Described first cover pushing structure also includes the first fixing seat, and described first rocking arm is rotationally connected with the described first fixing seat, and one end of described first rocking arm and described first connecting rod is rotationally connected, to change the pushing direction of described first rocking arm promotion cover assembly folding；The other end of described first connecting rod and described cover assembly are rotationally connected；Described second cover pushing structure also includes the second fixing seat, and described second rocking arm is rotationally connected with the described second fixing seat, and one end of described second rocking arm and described second connecting rod is rotationally connected, to change the pushing direction of described second rocking arm promotion cover assembly folding；The other end of described second connecting rod and described cover assembly are rotationally connected.

3. range hood as claimed in claim 2, it is characterised in that described first cover pushing structure also includes pressure holding assembly and elastomeric element, the described first fixing seat includes the first fixing plate, is positioned on the described first fixing plate two first gripper shoes being oppositely arranged；Described first rocking arm includes the first rotation body being rotationally connected with described two first gripper shoes and the first cursor being located on described first rotation body, described first cursor and described first connecting rod are rotationally connected, described first rotates body is provided with tongue, and described first rotation body is fixed with the first end of described straight-bar and is connected；Described pressure holding assembly and described two first gripper shoes are slidably connected, described elastomeric element is fixing with described two first gripper shoes to be connected, and be connected with described pressure holding assembly elasticity, to promote described pressure holding component slippage, and when described cover assembly closes, tongue described in described pressure holding assembly pressure holding, produces to promote the motive force of described cover assembly Guan Bi.

4. range hood as claimed in claim 3, it is characterized in that, there is between described two first gripper shoes the first fixing bar and the second fixing bar, described elastomeric element is torsion spring, described torsion spring includes being sheathed on the ring for fixing on the described first fixing bar and from the first elastic arm outward extending described ring for fixing and the second elastic arm, described first elastic arm abuts with the described second fixing bar, and described second elastic arm abuts with described pressure holding assembly.

5. range hood as claimed in claim 4, it is characterized in that, described pressure holding assembly includes movable latch and the first axle sleeve being sheathed in described movable latch, described two first gripper shoes are provided with mounting hole, the two ends of described movable latch lay respectively in the mounting hole of correspondence, described first axle sleeve is sheathed in described movable latch, and between described two first gripper shoes；Described second elastic arm abuts with described movable latch, to promote described movable latch to slide in described mounting hole.

6. range hood as claimed in claim 3, it is characterized in that, described first cover pushing structure also includes the first engaging latch, the second axle sleeve and the 3rd axle sleeve, above-mentioned two first gripper shoe correspondence positions have two first fixing holes being oppositely arranged and for housing described second axle sleeve or the 3rd axle sleeve, and described first rotates body is provided with the first hole clipping；Wherein, described second axle sleeve and the 3rd axle sleeve are positioned at the first fixing hole of correspondence, are connected with described first gripper shoe interference；First end of described first engaging latch is provided with the first snap ring, and the second end is fixed with the first end of described straight-bar and is connected；First end of described first engaging latch sequentially passes through described second axle sleeve, the first hole clipping and the 3rd axle sleeve and is fixed with described first snap ring and is connected, and described first engaging latch is connected with described second axle sleeve and the 3rd axle sleeve interference, and being fixed with described first hole clipping is connected.

7. range hood as claimed in claim 6, it is characterized in that, first end of described straight-bar caves inward and forms the first accommodating hole, and the inwall of described first accommodating hole caves inward and forms at least one first screens groove, and described first screens groove runs through the first end of described straight-bar；Second end of above-mentioned first engaging latch is placed in described first accommodating hole, and the position of corresponding first screens groove is provided with the first screens projection adaptive with described first screens groove.

8. range hood as claimed in claim 2, it is characterized in that, what described second rocking arm included being rotationally connected with the described second fixing seat second rotates body and is located at the described second the second cursor rotating on body and the 3rd cursor, described second rotation body is fixed with the second end of described straight-bar and is connected, described second cursor and push-rod assembly are rotationally connected, one end of described 3rd cursor and described second connecting rod is rotationally connected, to change the pushing direction of described second rocking arm promotion cover assembly folding；The other end of described second connecting rod and described cover assembly are rotationally connected.

9. range hood as claimed in claim 8, it is characterised in that the described second fixing seat includes the second fixing plate, is positioned on the described second fixing plate two second gripper shoes being oppositely arranged；Described second cover pushing structure also includes the second engaging latch, the 4th axle sleeve and the 5th axle sleeve, described two second gripper shoe correspondence positions have two second fixing holes being oppositely arranged and for housing described 4th axle sleeve or the 5th axle sleeve, and described second rotates body is provided with the second hole clipping；Wherein, described 4th axle sleeve and the 5th axle sleeve are positioned at the second fixing hole of correspondence, are connected with described second gripper shoe interference；First end of described second engaging latch is provided with the second snap ring, and the second end is fixed with the second end of described straight-bar and is connected；First end of described second engaging latch sequentially passes through described 4th axle sleeve, the second hole clipping and the 5th axle sleeve and is fixed with described second snap ring and is connected, and described second engaging latch is connected with described 4th axle sleeve and the 5th axle sleeve interference, and being fixed with described second hole clipping is connected.

10. range hood as claimed in claim 9, it is characterised in that the first end of straight-bar caves inward and forms the first accommodating hole, the inwall of described first accommodating hole caves inward and forms at least one first screens groove, and described first screens groove runs through the first end of described straight-bar；Second end of above-mentioned first engaging latch is placed in described first accommodating hole, and the position of corresponding first screens groove is provided with the first screens projection adaptive with described first screens groove.