SU815403A1

SU815403A1 - Locking arrangement

Info

Publication number: SU815403A1
Application number: SU792784591A
Authority: SU
Inventors: Петр Иванович Маркин; Вадим Николаевич Пряхин; Анатолий Григорьевич Котенев; Владимир Алексеевич Королев; Виктор Александрович Джаши
Original assignee: Предприятие П/Я А-1665
Priority date: 1979-06-22
Filing date: 1979-06-22
Publication date: 1981-03-23

Description

(54) ЗАПОРНОЕ УСТРОЙСТВО(54) SPLITTING DEVICE

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Изобретение относитс к арматуростроению , в частности к высокотемпературным запорным устройствам дл газовых или воздушных магистралей.This invention relates to a valve industry, in particular, to high-temperature locking devices for gas or air lines.

Известно запорное устройство, содержащее корпус с седлом, входной и выходной патрубки, сервопоршень, размещенный в цилиндре и св занный с ним через шток колоколообразный запорный орган Ч A locking device is known, comprising a housing with a saddle, an inlet and an outlet, a servo piston housed in a cylinder and a bell-shaped locking member connected to it through a rod.

Недостатками данного устройства вл ютс большие габариты, неэкономичность работы, сложность и ненадежность конструкции.The disadvantages of this device are large size, inefficient operation, complexity and unreliability of the design.

Известно также запорное устройство , в полости корпуса которого размещены нагруженный пружиной трубчатый запорный орган, взаимодействующий с уплотн ющим поршнем, управл юща полость которого сообщена через распределитель со сливом и каналом с напорной магистралью 21 It is also known to have a locking device, in the cavity of the casing of which a spring-loaded tubular locking member is placed, which interacts with a sealing piston, the control cavity of which is communicated through a distributor with a drain and a channel with a pressure line 21

Недостатком этого устройства вл етс сравнительно небольша сила прижати запорного органа к седлу, что отрицательно сказываетс на надежности .A disadvantage of this device is the relatively small force of pressing the closure member against the seat, which adversely affects reliability.

Цель изобретени - повышение надежности устройства.The purpose of the invention is to increase the reliability of the device.

Указанна цель достигаетс тем, что на корпусе установлена неподвижна осева направл юща уплотн к цего поршн и в ней выполнены отверстие и радиальный канал, сообщающий осевое отверстие с управл5пощей полостью, причем на запорном органе выполнен бурт, раздел ющий полость корпуса на полость закрыти , посто нно сое0 диненную с напорной магистралью, и полость открыти , св занную с напорной магистралью и со сливом через распределитель, и внутри его закреплен плунжер, вход щий в отверстиеThis goal is achieved by the fact that a fixed axial guide seal is mounted on the body to this piston, and there is a hole and a radial channel in it that connects the axial hole to the control of the cavity, and the shoulder separating the cavity of the body to the closing cavity is made on the locking body connected to the pressure line, and the cavity open, connected to the pressure line and with the drain through the distributor, and inside it is fixed a plunger entering the hole

5 направл ющей и перекрываклдей радиальный канал при открытом запорном органе , а канал сообщающий управл ющую полость с напорной магистралью, выполнен в плунжере.5, the radial channel with the valve closed and the valve closed, and the channel communicating the control cavity with the pressure line, is made in the plunger.

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На чертеже представлено запорное устройство, общий вид.The drawing shows the locking device, a General view.

В полости корпуса 1 размещен нагруженный пружиной 2 трубчатый запорный орган 3, на котором выполненIn the cavity of the housing 1 is placed loaded with a spring 2 tubular locking body 3, which is made

5 бурт 4, раздел ющий эту полость 5 закрыти и полость 6 открыти . Запорный орган 3 взаимодействует с уплотн ющим его поршнем 7, образующим с корпусом управл ющую полость 8.5, the collar 4 separating this cavity 5 is closed and the cavity 6 is opened. The locking member 3 interacts with the piston 7 sealing it, which forms the control cavity 8 with the housing.

Claims

0 An axial guide 9 of the piston is fixed on the housing, and there is an opening 10 and a radial channel 11 in it, communicating an opening 10 and a control cavity 9. In the locking organ 3, 12 is fixed, entering into the opening 10 and blocking the channel 11. In the plunger 12 is provided with a channel 13 which communicates the pressure line with the control cavity. The distributor 1 communicates the control cavity with the drain, and the cavity 6 opens with the pressure line or with the drain, the cavity 5close is permanently connected to the pressure line. The device works in the following way. When moving the distributor 1 to the left extreme position, it reports the pressure line with the cavity 6 to open, and the control cavity 8 with the drain. By the pressure of the working medium in the cavity b open and the force of the spring 2, the locking member 3 moves to the left to open, together with the pressure line with the outlet, while the pressure of the working medium moves the piston 7 to the right to open, compressing the spring that loads it. When moving the distributor 14, it is right it reports the cavity 6 to open with the drain. In this case, the control cavity 8 is disconnected with the drain. The pressure of the working medium in the cavity 5 closes, overcoming the force of the spring 2, moves the locking member 3 to the right, the closing piston 12 simultaneously fixed on it informs the control cavity through the channels 13 and 11 with a pressure line. The pressure of the working medium in the control cavity creates an additional force to press the piston against the stop valve. The use of the device allows to increase the reliability and durability of the device due to the smoothness of the closure. Claims of the invention: A locking device, in the cavity of the casing of which a spring-loaded tubular locking element is interposed, interacting with a sealing piston, controlling the cavity of which is communicated through a distributor with a drain and a channel with a pressure line, in order to increase the reliability of the device, on the casing a fixed axial guide seal is installed and a hole and a radial channel are made in it, which communicates this hole with the control cavity, and on the closing organ a collar separating the cavity of the housing into the cavity of the closure permanently connected to the pressure pipe, and the cavity open connected to the pressure pipe and with the drain through the distributor, and inside its fixed plunger entering the opening of the guide and closing the radial channel open shut-off organ, and the channel, which communicates the control cavity with the pressure line, is made in the plunger. Sources of information taken into account during the examination 1. USSR author's certificate No. 268338, cl. R 16 K 1/12, 1969.

2. Avt-Orsk certificate of the USSR 507737, cl. F 16 K 11/10, 1974.

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