CN2337438Y

CN2337438Y - Differential window type scavenger fan

Info

Publication number: CN2337438Y
Application number: CN 98231252
Authority: CN
Inventors: 欧学龄
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-27
Filing date: 1998-08-27
Publication date: 1999-09-08
Anticipated expiration: 2008-08-27

Abstract

The utility model relates to a scavenger fan used for ventilation and gas discharging. The utility model comprises a motor, blades, window leaves, a box body and a window leaf driving device, wherein, the window leaves are an upper window leaf which can be opened by rotated upwards and a lower window leaf which can be opened by rotated downwards. Both the upper window leaf and the lower window leaf are connected with the window leaf driving device. The lower part of a face shell is provided with a demountable oil collecting box. The lower part of the box body is provided with an oil return channel communicated with the oil collecting box. The gas discharging amount of the utility model is large and stable, and discharged oil smoke does not pollute indoor and outdoor walls. The utility model has the advantages of simple maintenance and simple cleaning.

Description

Differential window formula ventilation fan

The utility model relates to a kind of ventilation fan that is used for vented exhaust.

The oil smoke that produces when cooking in order to get rid of, the venetian blind type ventilation fan all has been installed in the kitchen of many families, this ventilation fan structure is simple in structure, cost is low, practical, play a positive role for improving indoor health, but there are some very distinct issues in the venetian blind type ventilation fan in long-term the use: the one, and capacity is big inadequately, each window leaf is opened the back and is had an inclination angle with airflow direction, air-flow there is certain retardation, and service time is long more, long-pending attached greasy dirt increases on the window leaf, the inclination angle of window leaf and airflow direction can increase, and the retardation of air-flow is also increased, and ventilation effect is variation gradually just; The 2nd, the profit that sticks on the ventilation fan can pollute window or wall; The 3rd, maintenance, clean inconveniently, existing ventilation fan must remove when cleaning can wash clean, very inconvenient, damages ventilation fan again easily.

The purpose of this utility model is to provide a kind of capacity to stablize, do not pollute indoor and outdoor wall, the easy differential window formula ventilation fan of maintenance greatly.

The technical solution of the utility model is as follows: the utility model comprises motor, flabellum, window leaf, casing, window leaf transmission mechanism, the window leaf is arranged on the lateral surface of casing, the window leaf is last window leaf that can upwards rotate unlatching and the following window leaf that can rotate unlatching, and last window leaf and following window leaf all link with window leaf transmission mechanism.The opening direction of two window leaves is opposite, and two window leaves become horizontal parallel state or divergent contour during unlatching, and the air-flow that makes the flabellum rotation produce is not blocked, so capacity increases.

Window leaf transmission mechanism comprises control operating rod, the connecting rod that links with the rocking arm of last window leaf and following window leaf respectively, and the turning cylinder of last window leaf and following window leaf is separately positioned on the casing top and bottom, and control operating rod and connecting rod link.The operator spurs control operating rod when switch the utility model, by the control operating rod drivening rod, connecting rod drives the window leaf again and following window leaf opens and closes.This window leaf transmission mechanism can be handled two window leaves and reach and remain on maximum open position, makes capacity reach maximum.Control operating rod is provided with hook-shaped rocking arm, slidably presses or break away from the bend shape shrapnel of motor travel switch.This shell fragment has elasticity, can keep this shell fragment to contact with the manipulation surface of the travel switch of motor, realizes and guarantee the switch of motor is controlled.Also can be provided with on the control operating rod and recover spring and balancing spring, impel the switching of window leaf.

Around flabellum of the present utility model, face-piece is housed, is provided with demountable receipts oil box in this face-piece bottom.Have at lower box and to lead to the oil return ditch of receiving oil box.This just makes the long-pending fluid that is attached on flabellum, face-piece, window leaf and the casing all flow into the receipts oil box, and long-pending attached fluid falls into lower box earlier on window leaf and the casing, flows into along the oil return ditch and receives oil box.So greasy dirt can not pollute the indoor and outdoor wall.After filling fluid in the receipts oil box, can unload down, put in back behind the turned letter in the face-piece bottom with receiving oil box.

In sum, the utility model capacity is stablized greatly, and two window leaves can be opened into horizontal parallel state or divergent contour, and air-flow is not had any retardance; The utility model can not pollute the indoor and outdoor wall when using, and the attached fluid that amasss all flows into the receipts oil box, the protection environmental sanitation; The utility model maintenance is easy, because it is simple in structure, can take apart during cleaning, and directly using cloth to wipe with gets final product only, very convenient.The utility model is specially adapted to ventilation mist extractor in the kitchen, also existing old ventilation fan can be converted.

Embodiment below in conjunction with accompanying drawing further specifies the utility model.

Fig. 1 is a longitudinal profile structural representation of the present utility model;

Fig. 2 is a side structure schematic diagram of the present utility model.

Structure of the present utility model as shown in Figure 1, it comprises casing 1, last window leaf 2, following window leaf 3, motor 4, flabellum 5, flabellum fastening cover 6, face-piece 7 and receives oil box 8, last window leaf 2 and following window leaf 3 are installed in the above and below at casing 1 rear portion respectively, differential one-tenth level of two window leaves or divergent contour during work reach 2 among Fig. 2 ' and 3 ' position.The set oil return ditch in casing 1 bottom imports two window leaves and the long-pending attached fluid of casing 1 inwall in the receipts oil box 8.Profit shunting pond also can be set in casing 1 back lower place, wherein be provided with median septum and external partition, have less throttle orifice on the median septum so that the oil on window leaf and the casing 1 is imported in the oil return ditch, and the water that casing 1 is gone in convection current plays throttling, metering function.Have bigger spout hole on the external partition, the water that flows into is discharged rapidly.

Receive oil box 8 and be contained in face-piece 7 belows, its top embeds the casing 1 following centre that limit and transom window edge 9 are installed.Receive in oil box 8 right-hand members and be provided with the cylindrical hole that leads to the bottom, pass through with the backguy that allows control operating rod 19 or be connected in its lower end.The receipts oil box is easy for installation, upwards packs into, takes out downwards.

In casing 1 lower right corner window leaf transmission mechanism and motor switch are housed, window leaf transmission mechanism comprises control operating rod 19 and connecting rod 10, and its effect is to handle the window leaf, is main load spare, connecting rod 10 links by balancing spring 12 and pull bar 19, and connecting rod 10 also is connected with and recovers spring 11.Motor switch adopts travel switch 16 to be switched on or switched off the circuit of motor 4, is non-bearing spare.Shell fragment 17 forces in travel switch 16 to realize the break-make of this switch.For ease of the unlatching control of window leaf, window leaf transmission mechanism also is connected with some accessories (comprising rocking arm 13, guide pad 14, scotch 15 and torsion spring 20 etc.) with pull bar 19 interlocks, and these parts and travel switch 16 all are installed on the stacked switch base 18.

During the utility model work, backguy with control operating rod 19 lower ends earlier pulls down, control operating rod 19 moves down, rocking arm 13 on it moves in the groove of scotch 15 along the inclined-plane of guide pad 14, under the elastic force effect of torsion spring 20; rocking arm 13 front ends enter in the groove of guide pad 14 automatically, and at this moment window leaf 2 and 3 is opened fully.When pull bar 19 moves down, rotate into divergent contour by balancing spring 12, connecting rod 10 band active window leafs 2 and 3, promptly be opened to 2 among Fig. 2 ' and 3 ' position respectively, this moment connecting rod 10, recover spring 11, balancing spring 12 and move to 10 respectively ', 11 ', 12 ' the position.When rocking arm 13 moved fast the end along the inclined-plane, the shell fragment 7 on the pull bar 19 slipped over travel switch 16, and the circuit of motor 4 is connected, motor 4 work, flabellum 5 rotation ventilations.When needs stop to take a breath, backguy with pull bar 19 lower ends earlier pulls down, and pull bar 19 moves down, and the slit of the front hook end of rocking arm 13 between guide pad 14 and scotch 15 moves to scotch 15 and collide, under the elastic force effect of torsion spring 20, rocking arm 13 front ends and pull bar 19 are adjacent to.Under the effect that recovers spring 11, pull bar 19 moves up, and window leaf 2 and 3 is closed.In a bit of distance of moving on pull bar 19 has just begun, the shell fragment 17 on the pull bar 19 slips over travel switch 16, and travel switch 16 is disconnected, and the circuit of motor 4 disconnects, and motor 4 quits work, flabellum 5 stalls.

Claims

1, a kind of window formula ventilation fan, comprise motor, flabellum, window leaf, casing, window leaf transmission mechanism, it is characterized in that the window leaf is last window leaf that can upwards rotate unlatching and the following window leaf that can rotate unlatching, last window leaf and following window leaf all link with window leaf transmission mechanism.

2, window formula ventilation fan according to claim 1, it is characterized in that window leaf transmission mechanism comprises control operating rod, the connecting rod that links with the rocking arm of last window leaf and following window leaf respectively, the turning cylinder of last window leaf and following window leaf is separately positioned on the casing top and bottom, and control operating rod and connecting rod link.

3, window formula ventilation fan according to claim 1 is characterized in that control operating rod is provided with hook-shaped rocking arm, slidably presses or break away from the bend shape shrapnel of motor travel switch.

4, window formula ventilation fan according to claim 1 is characterized in that around flabellum face-piece being housed, and is provided with demountable receipts oil box in this face-piece bottom.

5, window formula ventilation fan according to claim 1 is characterized in that having at lower box and leads to the oil return ditch of receiving oil box.