CN201011394Y

CN201011394Y - Air gate automatic opening device

Info

Publication number: CN201011394Y
Application number: CNU2007200177878U
Authority: CN
Inventors: 李德华; 廉金奇; 徐斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-25
Filing date: 2007-01-25
Publication date: 2008-01-23
Anticipated expiration: 2017-01-25

Abstract

The utility model belongs to an air door automatic opening-closing device in an aeration system, including an air duct, an electromagnet, a slide bar, a crank, a revolving shaft, an air door, etc. The air door is fixed in the air duct through the revolving shaft, the outstretching end of which is connected with the crank which is hinged with the slide bar through a bolt shaft. The outside of the slide bar is sleeved with an electromagnetic wire coil which is connected with a power supply and arranged in a fixed frame. The two ends of the slide bar passing through the electromagnetic wire coil are respectively provided with a limit block. The axial line of the crank is not parallel to or overlapped with the axes of the slide bar. The utility model has the advantage of employing the electromagnetic wire coil which generates a magnetic field when charged and then forms an inducing magnetic force which is used as a power source, and is simple in structure, small in size, flexible and easy in production. The whole device is compacted in structure and is applicable for the small or tiny aeration systems.

Description

The air door automatic opening-closing

Technical field

The utility model belongs in the ventilation system a kind of technology to the air door recloser, particularly in the ventilation system of ventilation combustion-supporting system (as boiler, hot blast stove etc.) and miniaturization automatically, opens and closes opening of air pipeline is main.Be a kind of air door automatic opening-closing concretely.

Background technique

In the transporting system of wind, often need be with the wind in the main air-duct, by the different time, different requirements is assigned to different places.Every branch road will be provided with the device of control air door, realize the control to airduct.Controlling method mainly contains at present: the one, and manual control; The 2nd, actuating motor control; The 3rd, HYDRAULIC CONTROL SYSTEM.Manually control is made of component such as air door, rotating shaft, turning handle, fastening screw, positioning plates.Its shortcoming can only manual control; Actuating motor control adds actuator by actuating motor and forms.HYDRAULIC CONTROL SYSTEM is made up of parts such as motor, oil pump, valve, fuel tank, oil cylinder, oil pipes.These two kinds of control modes can both realize the purpose of control automatically, and the degree of automation control is also very high.But manufacture cost is higher, and overall dimensions is bigger than normal, uses improper in the supply air duct system.Particularly when requiring miniaturization or microminiaturized damper automatically, because in the mode of actuating motor control or HYDRAULIC CONTROL SYSTEM, power source-motor need be set, could realize control automatically, add mechanical actuating mechanism, therefore actuating motor control and HYDRAULIC CONTROL SYSTEM seeming complicated in some cases, are difficult to satisfy the demand.

Summary of the invention

The purpose of this utility model aims to provide a kind of simple, compact, small and exquisite reliable air door automatic switch device.

In order to realize the purpose of this utility model, this device comprise airduct, by rotating shaft be fixed on air door in the airduct, be connected with air door rotating shaft external part turn handle, turning on the handle also by the pin hinge slide bar, the outside suit electromagnetic coil of slide bar, electromagnetic coil is connected with power supply and installs in fixed frame.The two ends that pass electromagnetic coil at slide bar are respectively equipped with limiting stopper, limit the sliding stroke of slide bar.The axis that turns handle can not be parallel overlapping with the axis of slide bar.

The particular content of such scheme is: by air intake base, main air-duct, branch wind pipe, electromagnet, slide bar, turn handle, rotating shaft, air door, etc. parts form.Rotating shaft and air door and to turn handle affixed, the axis that turns handle becomes a tilt fixing with air door.Air door is located in the arm, and the two ends of rotating shaft pass branch wind pipe.Slide up and down along vertical in the chute of slide bar in coil.The range of sliding is the h millimeter, and the two ends of slide bar are provided with limiting stopper, and the lower end is a U font groove, and the bottom of groove is drilled with perforation.Turn handle and be embedded in the U font groove of slide bar lower end, pin with the slide bar lower end with turn petioliform and become hinged.Before the energising, air door is at slide bar and turning under the action of gravity of handle, and is in the closed position; After connecting power supply, coil produces magnetic field, and the framework induction produces magnetic force, and slide bar is raised the h millimeter, drives and turns handle, air door half-twist together, and air door is opened.After cutting off the electricity supply, to lower slider, it produces torque in the same way to active force that turns handle and the gravity that turns handle itself to air door rotating shaft center to slide bar, overcomes surface friction drag under the self gravitation effect, and air door rotates, and gets back to closed position.

Above-mentioned air door automatic opening-closing, the magnetic force that utilizes magnet to produce relies on the sliding bar mechanism transmission, realizes the mode that air door opens and closes automatically;

Above-mentioned air door automatic opening-closing utilizes slide bar, turns the action of gravity of handle, and the torque that countershaft produces overcomes surface friction drag, closes the mode of air door;

Above-mentioned air door automatic opening-closing, the characteristics of utilizing the center of gravity turn handle and the geometric type heart not to overlap, adjustable turn over square size reaches the mode that air door is closed;

Above-mentioned air door automatic opening-closing utilizes the gravity of slide bar to close the mode of air door.

Advantage of the present utility model is:

1, utilizes coil electricity to produce magnetic field and form induced magnetism, as driving source.Novelty simple in structure,

2, small and exquisite flexible, be easy to make.

3, complete unit compactness is suitable for various small-sized, miniature ventilation systems.

Description of drawings

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

Fig. 2 is the A-A sectional view of Fig. 1;

Structural representation when Fig. 3 is door opening;

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

As Fig. 1, Fig. 2, shown in Figure 3, the utility model air door automatic opening-closing is by air intake base 1, main air-duct 2, branch wind pipe 3, turn parts such as handle 4, air door 5, slide bar 6, electromagnet 7, fixed plate 8, bearing pin 9, rotating shaft 10, axle cap 16 and form.The two ends of rotating shaft 10 pass branch wind pipe 3, one ends covers axle cap 16, and the other end is with to turn handle 4 affixed.The part of rotating shaft 10 in branch wind pipe 3 is affixed with air door.Like this, the axis and the air door angle at 45 of handle turned in air door 5, rotating shaft 10 and turn handle 4 and formed an integral body.Electromagnet 7 is made up of parts such as chute 11, M type card 12, coil 13, frameworks 14.Chute 11 is embedded in the middle of the coil 13, forms one.M type card 12 blocks chute 11, and chute and coil are embedded in the framework 14.Coil and chute, M type card, framework insulate.Slide bar 6 slides in chute 11, and the stroke of slip is the h millimeter.The upper end of slide bar 6 is provided with cylindrical limiting stopper 15, and middle-end is provided with the triangle limiting stopper, and U-groove bevel is arranged in the lower end, is drilled with perforation, turn handle 4 and be embedded in the U-groove bevel of slide bar 6, bearing pin 9 with slide bar 6 with turn handle 4 and be linked to be hinged.Turn handle 4 and be made as and do not wait thick structure, center of gravity does not overlap with the type heart.Torque with the axle center that changes center of gravity countershaft 10.Before the energising, air door 5 is at slide bar 6 and turn under the effect of handle 4, and is in the closed position; When needs unlatching air door 5, connect power supply, coil 13 produces magnetic fields, and framework 14 inductions produce magnetic force, and slide bar 6 moving linearlies are raised the h millimeter, and drive is turned handle 4 and is rotated, half-twist, air door 5 is opened; When needs are closed air door, to cut off the electricity supply, to lower slider, the power that produces during slip passes to by bearing pin 9 and turns handle 4 slide bar 6 under the self gravitation effect, and the axle center of countershaft 10 produces a torque.Owing to the center of gravity that turns handle is monolateral, the axle center of its countershaft 10 also produces a torque in addition.Two equidirectional effects of torque, air door 5 rotates along with turning handle 4.When the last plane contact of the cylindrical limiting stopper on the slide bar 15 and framework 14, slide bar stops slip, and air door is in closed condition.

Claims

1. air door automatic opening-closing, comprise airduct, by rotating shaft be fixed on air door in the airduct, be connected with air door rotating shaft external part turn handle, it is characterized in that: turning on the handle also by the pin hinge slide bar, the outside suit electromagnetic coil of slide bar, electromagnetic coil is connected with power supply and installs in fixed frame.

2. air door automatic opening-closing according to claim 1 is characterized in that: the two ends of passing electromagnetic coil at slide bar are respectively equipped with existing position piece, and the axis that turns handle can not be parallel overlapping with the axis of slide bar.