SU1406414A1 - Safety valve - Google Patents

Abstract

The invention relates to engineering hydraulics and can be used for all cases of protecting hydraulic systems from overloads. The purpose of the invention is to increase the capacity of the valve by installing an additional valve. For this, an additional locking member 8 is installed in the supravalvular cavity 5 with the possibility of blocking the axial channel 6 in the main locking organ 2, and the shank 9 rigidly connected with the additional locking organ 8 is hermetically placed in the axial duct 6. In the additional locking organ 8 and the shank 9 is provided with an axial stepped hole 10 and a radial hole 11 communicating it with the axial channel 6 of the main closure member 2. The axial stepped hole 10 is blocked by a control valve located in the over-valve cavity 5 by an argan 12, the pusher 13 of which is installed in the stepped hole 10 and faces the entrance cavity 3, located on the side of the end of the main closure body 2 and communicated with the throttling channel 16 over the valve valve 5. 1 Il.

Description

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The invention relates to Manjj-mo-construction hydraulics and can be used for all cases of protecting hydraulic systems from overloads,

The aim of the invention is to increase the flow capacity of the valve by installing an additional closure member.

The drawing shows a valve, a cut,

The main valve body 2 is installed in the safety valve body 1, uncoupling the input 3 output 4 and the over-valve 5 cavities pusno-laying on its tertiary side, 5 the through-channel 6 and connecting it with the output cavity 7- connecting the valve 2.

Axial channel 6 is blocked by an additional locking organ 8 with a tail placed in the above-valve cavity 5 with: - 9, hermetically placed in the axial channel i The axial stepped bore 10 and the radial bore 11 are provided in the secondary valve body 9 and the radial orifice 11 communicating the stepped hole 10 with an axial channel 6; Step opening 10 is blocked by a governing body 2 placed in the valve valve above the valve;

towards the entrance cavity is installed.,

in the hole 10 and has a diameter / large diameter, the sealing section 14 of the controlling valve 12 "The controlling valve 12 is loaded with a spring 15" The control valve 16 is connected to the controlling valve and its pushrod.

The safety valve works with: glazed way.

Under normal pressure of the working medium, the control valve 12 by the force of the spring 15, which overcomes the difference in forces from the pressure of the working medium to the control valve and the pusher from the over-valve and inlet cavities, is held in the closed position and separates the over-valve cavity 5 and the outlet cavity 4. In as a result of the pressure in the non-valve cavity and the spring 15, the main and additional

VNIIPI Order 3179/36

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At noBbimeFinH, the working pressure of the medium increased; 1yts lt; on the manager: the aporch organ and the catelier, GL - c. authority 12; breaking through with friends; the dyke also rises up from the nial cavity through the deep ally ll s -.:;::::- radial opening: Gnost 4 "Pony; that: M o llapankoy: yutgsg and i additional ZgI that creates noiic-.iriH b -: to her environments from

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Porn organ,: to the entrance and rykodnum

iledohranits t-.YI 1: sy xopnyCj main R a 3 o b C a yuday 1 s c p; i s with augmented and supravalpal nojiOCTHj 11in zapineh control valve with a pusher, diameter of the diameter of the diameter sealing its governing body aariorf oro organ:, and the input cavity r; ac.polonarr of the side of the butt end of the perfumed. Ghana and communicated with .1 AGT 1; g-: ps - by the throttle channel, in PSE; OE-tional shut-off organization B1) Completely squared axial channel to the communicator and its aisle with the output cavity radial opening1-g ,, control Yugal locking organ otsansrlen in the nap, the valve cavity and the arder adder and g-pusher to the input stop OG: -; In order to increase the flow rate of the CTIOCCJC-nostg ;, the valve is provided with an additional shut-off organ located in the a /; -. valve valve post: -;: of a zagyorny body, and rigidly c1-) tied with a body valve ochegan hermetically placed in the arm5 and in the additional valve organ and the shank of a superfluous valve that can be operated through a control valve: -.: axial stepped hole for the pusher of the control valve - the radial hole ,;: generalized axially hole with axes channel main closure member,

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Claims (1)

The safety valve should fall off the main shut-off body (recognizing the uncoupling from the body to the open, hyhe-and-valved cavities. "Spring-loaded control shut-off body with a pusher, the diameter of which is farther than the diameter of the sealing shuttle eagle, including the inlet cavity is located on the side of the end face of the main locking bushing and is in communication with the overvalve cavity with a throttle channel, in the main locking body there is a through axial channel and a radial c-hardness connecting it with the output cavity, unitary enterprise The branching shut-off element is installed in the supravalvular cavity and turned with its pusher into the inlet cavity, characterized in that, in order to increase the throughput method, g ;, the valve is equipped with an additional locking organ located in the supravalvular cavity: - 'I. blocking the axial channel of the main a locking body, and tightly connected with an additional locking body, hermetically placed in the tail of the swiche, the axial channel, and in the additional locking body and the shank made axial overlap by the control locking body e stepped bore under the control valve tappet l radial opening communicating with an axial stepped bore channel -Basic closure member.