CN103574722B - Electromagnetic-sucking sealed type smoke-inversion-preventing extractor hood - Google Patents

Abstract

The invention discloses an electromagnetic-sucking sealed type smoke-inversion-preventing extractor hood. The electromagnetic-sucking sealed type smoke-inversion-preventing extractor hood comprises an air blower and a box body, and an air exhaust outlet and two semi-non-return air plates arranged on the box body, wherein the two semi-non-return air plates are pivoted with the air exhaust outlet. The electromagnetic-sucking sealed type smoke-inversion-preventing extractor hood further comprises a sealing plate capable of being folded and bent, a magnet and an electromagnet, wherein a counter bore is formed in the air exhaust outlet; pivotal bases at the two ends of a diameter line are arranged in the counter bore; two half-axle holes are formed on the pivotal bases; the two ends of a supporting plate are fixedly connected with the inner wall of the air exhaust outlet, respectively; the sealing plate capable of being folded and bent is fixedly connected with the two semi-non-return air plates; the N magnet is fixed on the semi-non-return air plates; the electromagnet is fixed on a magnet base; rotary shafts on the semi-non-return air plates are embedded with rotary shaft slots; the edge of the sealing plate capable of being folded and bent is sealed with a bottom plate of the counter bore in a matched manner. The N magnet and the electromagnet are oppositely arranged, so that the sealing plate capable of being folded and bent is pressed by the semi-non-return air plates due to magnetic-sucking effect; the condition that the semi-non-return air plates leave the bottom plate of the counter bore to generate smoke inversion due to external influence can be effectively prevented.

Description

A kind of electromagnetism inhales sealing smoke-backflow-proof range hood

Technical field

The present invention relates to a kind of range hood.

Background technology

Currently available technology, a kind of smoke-backflow-proof range hood, including blower fan and casing, the exhaust outlet being arranged on casing top With two and half non-return wind pieces, two and half non-return wind pieces and exhaust outlet pivot joint.Existing problems are：Half non-return wind piece is sealed with exhaust outlet Poor performance, half non-return wind piece vibrations have noise, are rotated it is impossible to down-draught-proof effectively by ectocine.

Content of the invention

The purpose of the present invention is：A kind of electromagnetism is provided to inhale sealing smoke-backflow-proof range hood, it has the spy of good seal performance Put and be effectively prevented down draught.

The present invention is realized in：A kind of electromagnetism inhales sealing smoke-backflow-proof range hood, including blower fan and casing, is arranged on The exhaust outlet of casing top and two and half non-return wind pieces, two and half non-return wind pieces and exhaust outlet pivot joint it is characterised in that：Also include The diaphragm seal scratched, N Magnet and electric magnet can be rolled over,

Also include rolling over the diaphragm seal scratched, Magnet and electric magnet,

Or also include rolling over the diaphragm seal scratched, magnetic conductive metal block and electric magnet

There is a counterbore in described exhaust outlet, have the pin joint seat at diameter line two ends in described counterbore, pin joint seat has Two and half axis holes；The two ends of gripper shoe are fixedly connected with the inwall of exhaust outlet respectively, and the upper surface of gripper shoe has a groove, The upper surface of fagging is with the base plate of counterbore in one plane；The line at the center of half axis hole of two pin joint seats is located at groove Top；

There is rotating shaft the diameter side of described half non-return wind piece, and there is spindle nose at the two ends of rotating shaft；

Described folding has the curved folding in section of diametrically line to scratch body on the diaphragm seal scratched, there is rotating shaft the both sides that folding scratches body Groove；

Magnetic receiver in described exhaust outlet；

Described roll over the diaphragm seal scratched and be fixedly connected with two and half non-return wind pieces be connected, it is non-return that described N Magnet is fixed on half On wind piece, electric magnet is fixed on magnetic receiver, and the rotating shaft on half non-return wind piece is chimeric with rotary axis groove；The side of the diaphragm seal scratched can be rolled over Edge and the base plate fitted seal of counterbore.

A kind of described electromagnetism inhales sealing smoke-backflow-proof range hood, and it is characterized in that：Under described half non-return wind piece has The fixing counterbore of opening, can roll over the through hole having the shape with fixing counterbore to be adapted on the diaphragm seal scratched, and described N Magnet passes through Through hole is fixed in fixing counterbore.

A kind of described electromagnetism inhales sealing smoke-backflow-proof range hood, and it is characterized in that：It is heavy that described pin joint seat is arranged on On the base plate in hole, there is block at the middle part at the top of pin joint seat；

The circumferential end of the half non-return wind piece adjacent with described spindle nose is jagged, the circumferential end of half non-return wind piece of indentation, there There is stop block；

The radial wall of described breach is slidably matched with the peripheral side of pin joint seat, and stop block coordinates stop bit with block；

The curved folding in described section scratches body and rolling over of rotary axis groove two ends has radial indentation at the diaphragm seal scratched, and radially lacks Mouth is slidably matched with pin joint seat.

A kind of electromagnetism of the present invention inhales sealing smoke-backflow-proof range hood, due to using such structure, can roll over the diaphragm seal scratched Radial edges and counterbore base plate sealing, the N Magnet mode relative with electric magnet is arranged, and due to the effect of magnetic, half is non-return Wind piece compression can roll over the diaphragm seal scratched；Ectocine can be effectively prevented, half non-return wind piece leaves the base plate of counterbore, and falls Cigarette.

Brief description

Fig. 1 is the axonometric chart of the present invention.

Fig. 2 is the sectional view of exhaust outlet of the present invention.

Fig. 3 is office's enlarged drawing of Fig. 2.

Fig. 4 is the top view of exhaust outlet of the present invention.

Fig. 5 is the three-dimensional exploded view of exhaust outlet of the present invention.

Specific embodiment

The invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of electromagnetism inhales sealing smoke-backflow-proof range hood, including blower fan 1, casing 2, sets Put the exhaust outlet 3 at casing 2 top and two and half non-return wind pieces 4, two and half non-return wind pieces 4 and exhaust outlet 3 pivot joint, also including can Roll over diaphragm seal 5, N Magnet 6 and the electric magnet 7 scratched,

There is a counterbore 31 in described exhaust outlet 3, in described counterbore 31, have the pin joint seat 8 at diameter line two ends, pivot joint Two and half axis holes are had on seat 8；The two ends of gripper shoe 9 are fixedly connected with the inwall of exhaust outlet 3 respectively, on the upper surface of gripper shoe 9 There is the base plate of a groove 91, the upper surface of gripper shoe 9 and counterbore 31 in one plane；In half axis hole of two pin joint seats 8 The line of the heart is located at the top of groove 91；

There is rotating shaft 41 the diameter side of described half non-return wind piece 4, and there is spindle nose at the two ends of rotating shaft 41；

Described folding has the curved folding in section of diametrically line to scratch body 51 on the diaphragm seal 5 scratched, the both sides that folding scratches body have Rotary axis groove 52；

Magnetic receiver 32 in described exhaust outlet 3；

Described roll over the diaphragm seal 5 scratched and be fixedly connected with two and half non-return wind pieces 4 be connected, described N Magnet 6 is only fixed on half On contrary wind piece 4, electric magnet 7 is fixed on magnetic receiver 32, and the rotating shaft 41 on half non-return wind piece 4 is chimeric with rotary axis groove 52；Can roll over and scratch The edge of diaphragm seal 5 and counterbore 31 base plate fitted seal.Two electric magnet 7 are in parallel or series.

Described half non-return wind piece 4 has the fixing counterbore 42 of under shed, and described N Magnet 6 is fixed in fixing counterbore 42, can roll over The through hole that shape with fixing counterbore 42 is adapted is had on the diaphragm seal 5 scratched, described N Magnet 6 is fixed on through through hole Determine in counterbore 42.

Can also adopt, the mode that electric magnet 7 is coordinated with magnetic conductive metal block.

Described pin joint seat 8 is arranged on the base plate of counterbore 31, and there is block 81 at the middle part at the top of pin joint seat 8；

The circumferential end jagged 43 of the half non-return wind piece 4 adjacent with described spindle nose, the non-return wind piece of half at breach 43 4 There is stop block 44 at circumferential end；

The radial wall of described breach 43 and the peripheral side of pin joint seat 8 are slidably matched, when half non-return wind piece 4 rotates, stop bit Block 44 coordinates stop bit with block 81；

The curved folding in described section scratches body 51 and rolling over of rotary axis groove 52 two ends has radial indentation at the diaphragm seal 5 scratched 53, when the base plate of half non-return wind piece 4 and counterbore 31 fastens, radial indentation 53 is chimeric with pin joint seat 8；When electric magnet 7 no power When, the ferromagnet on electric magnet 7 and permanent magnet 6 adhesive.When electric magnet 7 is energized, electric magnet produces one and permanent magnet Contact jaw polarity identical magnetic pole, pushes diaphragm seal 5 open due to the relation of repelling each other, around half non-return wind piece 4 axis of rotation.Radial indentation 53 It is slidably matched with pin joint seat 8.

The present invention use when, operating control device, blower fan energising work, electric magnet produce one contact with permanent magnet End polarity identical magnetic pole, produces the thrust repelled each other, and the related diaphragm seal 5 of the non-return wind piece 4 of promotion half, permanent magnet 6 overcome together Structure self gravitation and electric magnet and permanent magnet suction seal around axially upper rotating opening, after maintain under fan pressure effect Floss hole open mode is discharged fume；Work as operating control device, blower fan power-off stops operating, half non-return wind piece 4 is in self gravitation Effect rotate and reset, half non-return wind piece 4 is fastened with the base plate of counterbore 31, the ferromagnet on electric magnet 7 and permanent magnet 6 weight New adhesive sealing.

Above-described be only the present invention preferred embodiments.It should be pointed out that the ordinary skill for this area For personnel, without departing from the principles of the present invention, some improvement and modification can also be made, this is also considered as the present invention's Protection domain.

Claims (2)

1. a kind of electromagnetism inhales sealing smoke-backflow-proof range hood, including blower fan and casing, the exhaust outlet and two being arranged on casing top Individual half non-return wind piece, two and half non-return wind pieces and exhaust outlet pivot joint it is characterised in that：Also include rolling over the diaphragm seal scratched, N Magnet And electric magnet,

Or also include rolling over the diaphragm seal scratched, magnetic conductive metal block and electric magnet；

There is a counterbore in described exhaust outlet, have the pin joint seat at diameter line two ends in described counterbore, pin joint seat has two Half axis hole；The two ends of gripper shoe are fixedly connected with the inwall of exhaust outlet respectively, and the upper surface of gripper shoe has a groove, gripper shoe Upper surface and counterbore base plate in one plane；The line at the center of half axis hole of two pin joint seats is located at the upper of groove Side；

There is rotating shaft the diameter side of described half non-return wind piece, and there is spindle nose at the two ends of rotating shaft；

Described folding has the curved folding in section of diametrically line to scratch body on the diaphragm seal scratched, there is rotary axis groove the both sides that folding scratches body；

There is magnetic receiver in described exhaust outlet；

Described roll over the diaphragm seal scratched and be fixedly connected with two and half non-return wind pieces be connected, described N Magnet or magnetic conductive metal block are fixed On half non-return wind piece, electric magnet is fixed on the magnetic receiver of exhaust outlet, and the rotating shaft on half non-return wind piece is chimeric with rotary axis groove；Can Roll over the base plate fitted seal at the edge of diaphragm seal scratched and counterbore；

Described half non-return wind piece has the fixing counterbore of under shed, can roll over and have the shape with fixing counterbore to be adapted on the diaphragm seal scratched Through hole, described N Magnet or magnetic conductive metal block are fixed in fixing counterbore through through hole.

2. a kind of electromagnetism according to claim 1 inhale sealing smoke-backflow-proof range hood it is characterised in that：Described pin joint seat sets Put on the base plate of counterbore, there is block at the middle part at the top of pin joint seat；

The circumferential end of the half non-return wind piece adjacent with described spindle nose is jagged, and the circumferential end of half non-return wind piece of indentation, there only has Position block；

The radial wall of described breach is slidably matched with the peripheral side of pin joint seat, and stop block coordinates stop bit with block；

The curved folding in described section scratches body and rolling over of rotary axis groove two ends has radial indentation at the diaphragm seal scratched, radial indentation with Pin joint seat is slidably matched.