SU737724A1

SU737724A1 - Air valve

Info

Publication number: SU737724A1
Application number: SU772516185A
Authority: SU
Inventors: Владимир Наумович Бродский; Николай Николаевич Павлов; Владимир Петрович Федоров; Анатолий Алексеевич Хромилин; Борис Григорьевич Шпиз
Original assignee: За витель
Priority date: 1977-08-09
Filing date: 1977-08-09
Publication date: 1980-05-30

Description

II

Изобретение относитс к области вентил ции и может быть использовано дл распределени воздуха или удалени дыма в системах вентил ции и кондиционировани воздуха промышленных общественных и жилых зданий, судов.The invention relates to the field of ventilation and can be used to distribute air or remove smoke in ventilation and air conditioning systems of industrial public and residential buildings, ships.

Известен воздушный клапан, содержащий створки, присоединенные к общей т ге, снабженной фиксатором 1.The air valve is known, comprising flaps connected to a common bar fitted with a retainer 1.

Однако дл работы этого клапана необходим привод пропорционального действи , что вызывает существенное увеличение его стоимости.However, a proportional actuator is required for the operation of this valve, which causes a significant increase in its cost.

Цель изобретени - повышение надежности и снижение стоимости клапана.The purpose of the invention is to increase reliability and reduce valve cost.

Дл достижени поставленной цели фиксатор выполнен в виде коромысла, закрепленного на общей т ге и имеющего диск с подвижными упорами и электромагнит с закрепленной на его коре подпружиненной рейкой, снабженной роликами, взаимодействующими при перемещении последней с упорами диска.To achieve this goal, the retainer is made in the form of a rocker arm fixed on a common thread and having a disk with movable stops and an electromagnet with a spring-loaded rail mounted on its bark, equipped with rollers that interact when the latter moves with the stop plates.

На фиг. 1 схематически изображен воз дущный клапан, общий вид; на фиг. 2 - ((иксатор, общий вид.FIG. 1 schematically shows the air inlet valve, general view; in fig. 2 - ((Iksator, general view.

Ш - ааваажда,а; зда ;д;еЗЗДарЬW - aawahwa, a; zda; d; ezdar

Воздушный клапан содержит .створки I, присоединенные к общей т ге 2, снабженной фиксатором 3, выполненным в виде коромысла 4, закрепленного на общей т ге 2 и имеющего диск 5 с подвижными упорами 6, 7 и электромагнит 8 с закрепленной на его коре 9 подпружиненной рейкой 10, снабженной роликами 11 и 12, взаимодействующими при перемещении последней с упорами 6 и 7 диска 5.The air valve contains clips I connected to a common bar 2, fitted with a retainer 3, made in the form of a rocker arm 4, mounted on a common bar 2 and having a disk 5 with movable stops 6, 7 and an electromagnet 8 mounted on its 9 spring-loaded rail 10, equipped with rollers 11 and 12, interacting with the movement of the latter with stops 6 and 7 of the disk 5.

На одном конце коромысла 4 прикреплена противодействующа пружина 13, а . другой - снабжен съемной штангой 14. Электромагнит 8 установлен на панели 15, на которой размещены электрические переключатели 16 и 17, стойки 18 и 19 под пружину 13. На общей т ге 2 закреплен упорAt one end of the rocker arm 4, an opposing spring 13 is attached, a. the other one is equipped with a removable rod 14. The electromagnet 8 is mounted on the panel 15, on which electrical switches 16 and 17 are placed, racks 18 and 19 under the spring 13. There is a stop on the common bar 2

20 под переключатели 16 и 17. Створки 1 20 under switches 16 and 17. Sash 1

снабжены уплотнительными эластичными прокладками 21. fitted with elastic seals 21.

Работа клапана осуществл етс следующим образом.The operation of the valve is as follows.

Claims

20 When the fan is not working (not shown), the flaps 1 are closed, the spring 13 is attached to the rack 18. After turning on the fan motor (not shown) after the required time interval, when the air pressure drop across the valve reaches the required value, the time relay (not shown) will close its contact and the electromagnet 8 will be energized. As a result, the measles 9 will begin to be drawn into the electromagnet 8, and the initial part of its movement, which is about 25% of the full stroke, occurs without load, which provides it with the necessary acceleration. Anchor 9, no sweat down the rail 10 and the roller 11 rolls down from the movable stop 7. Then the gtvorki 1 will open under the action of the air pressure drop, the rocker arm 4 will rotate counterclockwise. At the first moment, when the flaps 1 begin to open, the ha 2 will begin to move upwards and the stop 20 will stop pressing the switch 17, which will cause the power supply circuit of the electromagnet 8 to open and return to the initial position of the core 9 together with the rail 10 and rollers II, 12. Therefore, as soon as the movable stop 7 rotates to the desired angle, it will be fixed by the roller 11, thereby ensuring the installation of the flaps 1 in the open position. The closing of the valves 1 is as follows. After the fan motor turns off, the time relay switches on again and, after a set period of time, contacts the electromagnet 8 with its contact. In this way, the switch 9 works and the roller 11 releases the stop 7. By the action of the spring 13 and the self-thickness of the flap I will begin closing, and the tractor 2, moving down, with the stop 20, stops pressing the switch 16, which causes the electromagnet 8 power supply circuit to open. As a result, the measles 9 together with the rail 10 return to their original position. Only after the flaps 1 are fully closed, while compressing the sealing gaskets 1, the roller 11 will fix the stop 6, thereby ensuring a tight closing of the valve. At the same time, the stop 6 presses the switch 17 and the signal lamp lights up. The valve is closed (not shown in the drawing). When installing the air valve on the smoke exhaust pipe (not shown), the valves 1 are manually set to the closed position by means of the rod. 14, fixed on the yoke 4. Pre-pull down the rail 10 together with the bark 9. After turning the yoke 4 in a clockwise direction, the roller 11 fixes the movable stop 6, ton ha 2 takes the upper position and the stop 20 presses the switch 17. Thus Thus, by making the lock in the form of a rocker arm fixed to a common thread and having a disk with movable stops and an electromagnet with a spring-loaded rail mounted on its bark fitted with rollers, the valve control system is simplified and the reliability of operation you and his efficiency. Claims of the invention: The air valve comprising sashes connected to a common thread provided with a retainer, characterized in that, in order to increase reliability and reduce the cost, the retainer is made in the form of a rocker arm mounted on a common thread and having a disk with movable stops mounted on its bark spring-loaded rail, equipped with rollers that interact when moving the latter with the stops of the disk. Sources of information taken into account in the examination of 1 USSR Author's Certificate No. 178961, cl. F24 F 13/08, 1964.

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