The utility model content
The purpose of this utility model is to consider the problems referred to above and a kind of exhaust fume collecting hood of opening when range hood is worked is provided, and closure set petticoat pipe during inoperative strengthens and holds together the cigarette effect, and prevents the range hood of return air taint of odour.The utility model is reasonable in design, and is convenient and practical.
The technical solution of the utility model is: range hood of the present utility model, include casing, be installed in the exhaust fume collecting hood on the casing, wherein be equiped with on the exhaust fume collecting hood and when range hood is worked, can drive its motion and leave the set air inlet of casing, when range hood is not worked, can drive its motion and get back on the casing drive unit that hides the set air inlet of casing, this drive unit includes driving mechanism and transmission mechanism, and driving mechanism is connected with exhaust fume collecting hood by transmission mechanism.
Above-mentioned driving mechanism is a reducing motor, transmission mechanism includes turbine, scroll bar, first connecting rod and connecting rod, wherein turbine and scroll bar engagement, the output shaft fixed connection of scroll bar and reducing motor connects, one end of first connecting rod is connected with turbine, the other end and connecting rod are hinged, and connecting rod is packed on the exhaust fume collecting hood.
Above-mentioned driving mechanism is a reducing motor, transmission mechanism includes first gear, second gear, first connecting rod and connecting rod, wherein first gear and second gears engaged, second gear is installed on the output shaft of reducing motor, one end of first connecting rod is connected with first gear, the other end and connecting rod are hinged, and connecting rod is packed on the exhaust fume collecting hood.
Above-mentioned transmission mechanism also includes second connecting rod, and an end and the casing of second connecting rod are hinged, and the other end and connecting rod are hinged.
Above-mentioned connecting rod is fixed on the exhaust fume collecting hood by buckle or screw.
Above-mentioned reducing motor is ac synchronous motor or direct current synchronous motor.
The side of above-mentioned first connecting rod and second connecting rod is respectively equipped with the primary importance sensor and the second place sensor of its movement position of control, and the signal output part of primary importance sensor and second place sensor is connected with the controller of range hood respectively.
Above-mentioned driving mechanism is the electric pushrod device, the electric pushrod device includes drive motors, will rotatablely move and change straight-line movement conversion mechanism and push rod into, transmission mechanism includes second connecting rod and connecting rod, the input of movement conversion mechanism is connected with the output shaft of drive motors, the output of movement conversion mechanism is connected with an end of push rod, the other end of push rod and the middle part of second connecting rod are hinged, one end and the case of second connecting rod connect, the other end and connecting rod are hinged, and connecting rod is installed on the exhaust fume collecting hood.
Above-mentioned transmission mechanism also comprises third connecting rod, and wherein an end of third connecting rod hinge is contained on the connecting rod, and the other end is packed on the casing.
Above-mentioned connecting rod is fixed on the exhaust fume collecting hood by buckle or screw.
The side of above-mentioned third connecting rod and second connecting rod is respectively equipped with the primary importance sensor and the second place sensor of its movement position of control, and the signal output part of primary importance sensor and second place sensor is connected with the controller of range hood respectively.
The utility model is installed in kitchen range top top, and exhaust fume collecting hood can be regulated the folding angle automatically, opens exhaust fume collecting hood when range hood is worked, and draws oil smoke, purifies kitchen environment; Closure set petticoat pipe during the range hood inoperative, the taint of odour of having avoided range hood to cause because of return air reduces kitchen operation personnel exhaust emission.The utility model be a kind of strengthen range hood work advance the cigarette amount, improve oil separation effect simultaneously, prevent that effectively range hood from causing taint of odour because of return air, change the kitchen working environment, the science and technology that promotes range hood is dynamic, designs ingenious, function admirable, convenient and practical range hood.
The specific embodiment
Embodiment 1:
Structural representation of the present utility model as shown in Figure 1, 2, include casing 1, be installed in the exhaust fume collecting hood 2 on the casing 1, wherein be equiped with on the exhaust fume collecting hood 2 and when range hood is worked, can drive its motion and leave casing 1 set air inlet 11, when range hood is not worked, can drive its motion and get back on the casing drive unit that hides casing 1 set air inlet 11, this drive unit includes driving mechanism and transmission mechanism, and driving mechanism is connected with exhaust fume collecting hood 2 by transmission mechanism.
In the present embodiment, above-mentioned driving mechanism is a reducing motor 5, transmission mechanism includes turbine 4, scroll bar 41, first connecting rod 6 and connecting rod 3, wherein turbine 4 meshes with scroll bar 41, scroll bar 41 is connected with the output shaft of reducing motor 5, one end of first connecting rod 6 is connected with turbine 4, and the other end and connecting rod 3 are hinged, and connecting rod 3 is packed on the exhaust fume collecting hood 2.
Be the open angle of control exhaust fume collecting hood, above-mentioned transmission mechanism also comprises second connecting rod 7, and an end and the casing 1 of second connecting rod 7 are hinged, and the other end and connecting rod 3 are hinged.
Above-mentioned connecting rod 3 is fixed on the exhaust fume collecting hood 2 by buckle or screw.In the present embodiment, connecting rod 3 is fixed by snap on exhaust fume collecting hood 2.
Above-mentioned reducing motor 5 is ac synchronous motor or direct current synchronous motor.In the present embodiment, reducing motor 5 is an ac synchronous motor.
The side of above-mentioned first connecting rod 6 and second connecting rod 7 is respectively equipped with the primary importance sensor 8 and the second place sensor 9 of its movement position of control, and the signal output part of primary importance sensor 8 and second place sensor 9 is connected with the controller of range hood respectively.
Operation principle of the present utility model is as follows: in Fig. 1 position, when the signal of exhaust fume collecting hood 2 is opened in the input of circuitry control system, the output shaft of reducing motor 5 rotates, in Fig. 1 for rotating counterclockwise, scroll bar 41 begins to rotate thereupon, thereby driving turbine 4 rotates, turbine 4 drives first connecting rod 6 and moves counterclockwise, second connecting rod 7 rotates counterclockwise simultaneously, connecting rod 3 is under the rotation of first connecting rod 6 and second connecting rod 7 drives, driving exhaust fume collecting hood fixed thereon 2 upwards rotates, thereby realized the action that exhaust fume collecting hood 2 forms an angle and moves upward with respect to casing 1, when first connecting rod 6 turns to certain angle, when touching the contact that is fixed on the position sensor 8 on casing 1 installing plate 4, the signal that circuitry control system output reducing motor 5 stops operating, reducing motor 5 promptly stops operating, exhaust fume collecting hood 2 has arrived the enable possition of setting, it is the position of Fig. 2, the air inlet that has exposed range hood, range hood begins smoking work, exhaust fume collecting hood 2 is opened, and strengthens range hood and holds together the cigarette ability, exhausts oil smoke.
In Fig. 2 position, behind range hood smoking end-of-job, the signal of circuitry control system output closure set petticoat pipe 2, the output shaft of reducing motor 5 begins counter-rotating, in Fig. 2 for clockwise rotating, drive scroll bar 41 motions, scroll bar 41 transmission of power are given turbine 4, driving first connecting rod 6 simultaneously begins to clockwise rotate, thereby driving second connecting rod 7 clockwise rotates, connecting rod 3 drives exhaust fume collecting hood 2 fixed thereon and rotates, thereby realized the action that exhaust fume collecting hood 2 forms an angle and moves downward with respect to casing 1 under the rotation of first connecting rod 6 and second connecting rod 7 drives, when second connecting rod 7 turns to certain angle, when touching the contact of the position sensor 9 that is fixed on the casing 1, the signal that circuitry control system output reducing motor 5 stops operating, reducing motor 5 promptly stops operating, exhaust fume collecting hood 2 has arrived the closing position of setting, be the illustrated position of Fig. 1, hidden the air inlet of range hood fully, prevent that range hood from returning the cigarette taint of odour.
Embodiment 2:
Shown in Fig. 3,4, the structure difference from Example 1 of present embodiment range hood is: above-mentioned driving mechanism is a reducing motor 5, transmission mechanism includes first gear 42, second gear 43, first connecting rod 6 and connecting rod 3, wherein first gear 42 and 43 engagements of second gear, second gear 43 is installed on the output shaft of reducing motor 5, one end of first connecting rod 6 is connected with first gear 42, and the other end and connecting rod 3 are hinged, and connecting rod 3 is packed on the exhaust fume collecting hood 2.Other structure is identical with embodiment 1.
Embodiment 3:
As Fig. 5, shown in 6, the structure difference from Example 1 of present embodiment range hood is: above-mentioned driving mechanism is an electric pushrod device 10, electric pushrod device 10 includes drive motors 102, to rotatablely move and change straight-line movement conversion mechanism and push rod 101 into, transmission mechanism includes second connecting rod 7 and connecting rod 3, the input of movement conversion mechanism is connected with the output shaft of drive motors 102, the output of movement conversion mechanism is connected with an end of push rod 101, the middle part of the other end of push rod 101 and second connecting rod 7 is hinged, one end of second connecting rod 7 is connected with casing 1, the other end and connecting rod 3 are hinged, and connecting rod 3 is installed on the exhaust fume collecting hood 2.Above-mentioned drive motors 102 is a direct current synchronous motor, and will rotatablely moving, to change straight-line movement conversion mechanism into be pinion and rack.
In the present embodiment, be the open angle of control exhaust fume collecting hood, above-mentioned transmission mechanism also comprises third connecting rod 12, and wherein an end of third connecting rod 12 hinge is contained on the connecting rod 3, and the other end is packed on the casing 1.
Above-mentioned connecting rod 3 is fixed on the exhaust fume collecting hood 2 by buckle or screw.In the present embodiment, above-mentioned connecting rod 3 is fixed on the exhaust fume collecting hood 2 by screw.
The side of above-mentioned third connecting rod 12 and second connecting rod 7 is respectively equipped with the primary importance sensor 8 and the second place sensor 9 of its movement position of control, and the signal output part of primary importance sensor 8 and second place sensor 9 is connected with the controller of range hood respectively.
Operation principle of the present utility model is as follows: in Fig. 5 position, when circuitry control system TIP start signal, the push rod 101 of electric pushrod device 10 extends along Fig. 5 direction of arrow, second connecting rod 7 begins to rotate counterclockwise thereupon, thereby driving third connecting rod 12 rotates counterclockwise, connecting rod 3 is under the rotation of third connecting rod 12 and second connecting rod 7 drives, driving exhaust fume collecting hood fixed thereon 2 upwards rotates, thereby realized the action that exhaust fume collecting hood 2 forms an angle and moves upward with respect to casing 1, when third connecting rod 12 turns to certain angle, when touching the contact of the position sensor 8 that is fixed on the casing 1, circuitry control system output electric pushrod device 10 stops to stretch out the signal of push rod 101, the push rod 101 of electric pushrod device 10 stops to stretch out, exhaust fume collecting hood 2 has arrived the enable possition of setting, be the illustrated position of Fig. 6, exposed the air inlet of range hood, range hood begins smoking work.
In Fig. 6 position, behind range hood smoking end-of-job, the signal that circuitry control system output slab is closed, the push rod of electric pushrod device 10 shrinks along Fig. 4 direction of arrow, second connecting rod 7 begins to clockwise rotate thereupon, thereby driving third connecting rod 12 clockwise rotates, connecting rod 3 is under the rotation of third connecting rod 12 and second connecting rod 7 drives, driving exhaust fume collecting hood 2 fixed thereon rotates, thereby realized the action that exhaust fume collecting hood 2 forms an angle and moves downward with respect to casing 1, when second connecting rod 7 turns to certain angle, when touching the contact of the position sensor 9 that is fixed on the casing 1, circuitry control system output electric pushrod device 10 stops to shrink the signal of push rod, the push rod of electric pushrod device 10 stops to shrink, and exhaust fume collecting hood 2 has arrived the closing position of setting, the i.e. illustrated position of Fig. 3, hidden the air inlet of range hood fully, prevented that range hood from returning the cigarette taint of odour.